diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index ebf6f614df3..f9bb82598ff 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -6,7 +6,7 @@
 		"dockerfile": "Dockerfile",
 		"args": {
 			// Update the VARIANT arg to pick a version of Go
-			"VARIANT": "1.20",
+			"VARIANT": "1.22",
 			// Options
 			"INSTALL_NODE": "false",
 			"NODE_VERSION": "lts/*"
diff --git a/Dockerfile b/Dockerfile
index 2838ba17e3b..ad509721ba9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,7 +24,7 @@ RUN go mod tidy
 RUN go mod vendor
 ARG TEST="true"
 RUN if [ "$TEST" != "false" ]; then ./validate.sh ; fi
-RUN go build -mod=vendor -ldflags "-X github.com/prebid/prebid-server/v2/version.Ver=`git describe --tags | sed 's/^v//'` -X github.com/prebid/prebid-server/v2/version.Rev=`git rev-parse HEAD`" .
+RUN go build -mod=vendor -ldflags "-X github.com/prebid/prebid-server/v3/version.Ver=`git describe --tags | sed 's/^v//'` -X github.com/prebid/prebid-server/v3/version.Rev=`git rev-parse HEAD`" .
 
 FROM ubuntu:20.04 AS release
 LABEL maintainer="hans.hjort@xandr.com" 
diff --git a/Makefile b/Makefile
index cf4ac52b515..8b68afe3bee 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,7 @@ test: deps
 ifeq "$(adapter)" ""
 	./validate.sh
 else
-	go test github.com/prebid/prebid-server/v2/adapters/$(adapter) -bench=.
+	go test github.com/prebid/prebid-server/v3/adapters/$(adapter) -bench=.
 endif
 
 # build-modules generates modules/builder.go file which provides a list of all available modules
diff --git a/account/account.go b/account/account.go
index 418fd90c9ac..0087548cc79 100644
--- a/account/account.go
+++ b/account/account.go
@@ -6,13 +6,13 @@ import (
 
 	"github.com/prebid/go-gdpr/consentconstants"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/util/iputil"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/util/iputil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // GetAccount looks up the config.Account object referenced by the given accountID, with access rules applied
diff --git a/account/account_test.go b/account/account_test.go
index b4ea64f0287..c8b17b53ff8 100644
--- a/account/account_test.go
+++ b/account/account_test.go
@@ -6,13 +6,13 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/util/iputil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/util/iputil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 )
diff --git a/adapters/33across/33across.go b/adapters/33across/33across.go
index b9f0c98a38f..94ddf1f91fd 100644
--- a/adapters/33across/33across.go
+++ b/adapters/33across/33across.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type TtxAdapter struct {
@@ -76,7 +77,7 @@ func (a *TtxAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapter
 			// Skip over imps whose extensions cannot be read since
 			// we cannot glean Prod or ZoneID which are required to
 			// group together. However let's not block request creation.
-			if err := json.Unmarshal(impCopy.Ext, &impExt); err == nil {
+			if err := jsonutil.Unmarshal(impCopy.Ext, &impExt); err == nil {
 				impKey := impExt.Ttx.Prod + impExt.Ttx.Zoneid
 				groupedImps[impKey] = append(groupedImps[impKey], impCopy)
 			} else {
@@ -126,14 +127,14 @@ func makeImps(imp openrtb2.Imp) (openrtb2.Imp, error) {
 	}
 
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return openrtb2.Imp{}, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 
 	var ttxExt openrtb_ext.ExtImp33across
-	if err := json.Unmarshal(bidderExt.Bidder, &ttxExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &ttxExt); err != nil {
 		return openrtb2.Imp{}, &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -177,7 +178,7 @@ func makeReqExt(request *openrtb2.BidRequest) ([]byte, error) {
 	var reqExt reqExt
 
 	if len(request.Ext) > 0 {
-		if err := json.Unmarshal(request.Ext, &reqExt); err != nil {
+		if err := jsonutil.Unmarshal(request.Ext, &reqExt); err != nil {
 			return nil, err
 		}
 	}
@@ -215,7 +216,7 @@ func (a *TtxAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequ
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -226,7 +227,7 @@ func (a *TtxAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequ
 			var bidExt bidExt
 			var bidType openrtb_ext.BidType
 
-			if err := json.Unmarshal(sb.Bid[i].Ext, &bidExt); err != nil {
+			if err := jsonutil.Unmarshal(sb.Bid[i].Ext, &bidExt); err != nil {
 				bidType = openrtb_ext.BidTypeBanner
 			} else {
 				bidType = getBidType(bidExt)
diff --git a/adapters/33across/33across_test.go b/adapters/33across/33across_test.go
index c84ca0ad1d2..3ed177deacd 100644
--- a/adapters/33across/33across_test.go
+++ b/adapters/33across/33across_test.go
@@ -3,9 +3,9 @@ package ttx
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/33across/params_test.go b/adapters/33across/params_test.go
index ba985b2b250..3169a1d9944 100644
--- a/adapters/33across/params_test.go
+++ b/adapters/33across/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/33across.json
diff --git a/adapters/aax/aax.go b/adapters/aax/aax.go
index 09a06a1f5bb..10969559658 100644
--- a/adapters/aax/aax.go
+++ b/adapters/aax/aax.go
@@ -7,10 +7,11 @@ import (
 	"net/url"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -63,7 +64,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -96,7 +97,7 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 
 func getMediaTypeForImp(bid openrtb2.Bid, imps []openrtb2.Imp) (openrtb_ext.BidType, error) {
 	var bidExt aaxResponseBidExt
-	err := json.Unmarshal(bid.Ext, &bidExt)
+	err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 	if err == nil {
 		switch bidExt.AdCodeType {
 		case "banner":
diff --git a/adapters/aax/aax_test.go b/adapters/aax/aax_test.go
index c4fd1c392aa..ad24a2d62e1 100644
--- a/adapters/aax/aax_test.go
+++ b/adapters/aax/aax_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/aax/params_test.go b/adapters/aax/params_test.go
index bdfa46a9e63..0f93a063e65 100644
--- a/adapters/aax/params_test.go
+++ b/adapters/aax/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/aax.json
diff --git a/adapters/aceex/aceex.go b/adapters/aceex/aceex.go
index c579fe81c9b..73a040bbe56 100644
--- a/adapters/aceex/aceex.go
+++ b/adapters/aceex/aceex.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -90,13 +91,13 @@ func (a *adapter) MakeRequests(
 
 func (a *adapter) getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtAceex, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
 	}
 	var aceexExt openrtb_ext.ExtAceex
-	if err := json.Unmarshal(bidderExt.Bidder, &aceexExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &aceexExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
@@ -151,7 +152,7 @@ func (a *adapter) MakeBids(
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/aceex/aceex_test.go b/adapters/aceex/aceex_test.go
index 71c26ed0bed..7aef7dd93f7 100644
--- a/adapters/aceex/aceex_test.go
+++ b/adapters/aceex/aceex_test.go
@@ -3,9 +3,9 @@ package aceex
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/aceex/params_test.go b/adapters/aceex/params_test.go
index cb6445c491a..c09e2683073 100644
--- a/adapters/aceex/params_test.go
+++ b/adapters/aceex/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/acuityads/acuityads.go b/adapters/acuityads/acuityads.go
index 43d8e1eff97..e05ded95e80 100644
--- a/adapters/acuityads/acuityads.go
+++ b/adapters/acuityads/acuityads.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type AcuityAdsAdapter struct {
@@ -90,13 +91,13 @@ func (a *AcuityAdsAdapter) MakeRequests(
 
 func (a *AcuityAdsAdapter) getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtAcuityAds, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
 	}
 	var acuityAdsExt openrtb_ext.ExtAcuityAds
-	if err := json.Unmarshal(bidderExt.Bidder, &acuityAdsExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &acuityAdsExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
@@ -155,7 +156,7 @@ func (a *AcuityAdsAdapter) MakeBids(
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/acuityads/acuityads_test.go b/adapters/acuityads/acuityads_test.go
index c426d02c533..b19abd3f7d9 100644
--- a/adapters/acuityads/acuityads_test.go
+++ b/adapters/acuityads/acuityads_test.go
@@ -3,9 +3,9 @@ package acuityads
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/acuityads/params_test.go b/adapters/acuityads/params_test.go
index 3c7b3a97914..756dda3ea1e 100644
--- a/adapters/acuityads/params_test.go
+++ b/adapters/acuityads/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/adapterstest/test_json.go b/adapters/adapterstest/test_json.go
index 78f08421b3d..c2124abfcad 100644
--- a/adapters/adapterstest/test_json.go
+++ b/adapters/adapterstest/test_json.go
@@ -8,15 +8,16 @@ import (
 	"os"
 	"path/filepath"
 	"regexp"
+	"strings"
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
 	"github.com/google/go-cmp/cmp/cmpopts"
 	"github.com/mitchellh/copystructure"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 	"github.com/yudai/gojsondiff"
 	"github.com/yudai/gojsondiff/formatter"
@@ -273,6 +274,10 @@ func assertErrorList(t *testing.T, description string, actual []error, expected
 			if matched, _ := regexp.MatchString(expected[i].Value, actual[i].Error()); !matched {
 				t.Errorf(`%s error[%d] had wrong message. Expected match with regex "%s", got "%s"`, description, i, expected[i].Value, actual[i].Error())
 			}
+		} else if expected[i].Comparison == "startswith" {
+			if !strings.HasPrefix(actual[i].Error(), expected[i].Value) {
+				t.Errorf(`%s error[%d] had wrong message. Expected to start with "%s", got "%s"`, description, i, expected[i].Value, actual[i].Error())
+			}
 		} else {
 			t.Fatalf(`invalid comparison type "%s"`, expected[i].Comparison)
 		}
diff --git a/adapters/adelement/adelement.go b/adapters/adelement/adelement.go
index 427741eb077..11b79ad37b7 100644
--- a/adapters/adelement/adelement.go
+++ b/adapters/adelement/adelement.go
@@ -6,11 +6,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -58,13 +59,13 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtAdelement, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
 	}
 	var adelementExt openrtb_ext.ExtAdelement
-	if err := json.Unmarshal(bidderExt.Bidder, &adelementExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &adelementExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
@@ -88,7 +89,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/adelement/adelement_test.go b/adapters/adelement/adelement_test.go
index d1c58bbebb4..2cfa599f803 100644
--- a/adapters/adelement/adelement_test.go
+++ b/adapters/adelement/adelement_test.go
@@ -3,9 +3,9 @@ package adelement
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/adf/adf.go b/adapters/adf/adf.go
index afa9bc84562..08fb9b8bb4a 100644
--- a/adapters/adf/adf.go
+++ b/adapters/adf/adf.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -36,7 +37,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 
 	for _, imp := range request.Imp {
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errors = append(errors, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -44,7 +45,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 		}
 
 		var adfImpExt openrtb_ext.ExtImpAdf
-		if err := json.Unmarshal(bidderExt.Bidder, &adfImpExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &adfImpExt); err != nil {
 			errors = append(errors, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -65,7 +66,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 		var err error
 
 		if len(request.Ext) > 0 {
-			if err = json.Unmarshal(request.Ext, &requestExt); err != nil {
+			if err = jsonutil.Unmarshal(request.Ext, &requestExt); err != nil {
 				errors = append(errors, err)
 			}
 		}
@@ -117,7 +118,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -144,7 +145,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 	if bid.Ext != nil {
 		var bidExt openrtb_ext.ExtBid
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil && bidExt.Prebid != nil {
 			return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
 		}
diff --git a/adapters/adf/adf_test.go b/adapters/adf/adf_test.go
index 20e4f3dde32..21e8a769c15 100644
--- a/adapters/adf/adf_test.go
+++ b/adapters/adf/adf_test.go
@@ -3,9 +3,9 @@ package adf
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/adf/adftest/supplemental/unparsable-response.json b/adapters/adf/adftest/supplemental/unparsable-response.json
index 5e63febee4c..5a89ff2dd3b 100644
--- a/adapters/adf/adftest/supplemental/unparsable-response.json
+++ b/adapters/adf/adftest/supplemental/unparsable-response.json
@@ -43,7 +43,7 @@
   "expectedBidResponses": [],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal" 
     }
   ]
diff --git a/adapters/adf/params_test.go b/adapters/adf/params_test.go
index dc0d84927bc..9b3fd7b3e31 100644
--- a/adapters/adf/params_test.go
+++ b/adapters/adf/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/adf.json
diff --git a/adapters/adgeneration/adgeneration.go b/adapters/adgeneration/adgeneration.go
index 192680ca9f2..31e27b862a9 100644
--- a/adapters/adgeneration/adgeneration.go
+++ b/adapters/adgeneration/adgeneration.go
@@ -1,7 +1,6 @@
 package adgeneration
 
 import (
-	"encoding/json"
 	"errors"
 	"fmt"
 	"net/http"
@@ -11,10 +10,11 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type AdgenerationAdapter struct {
@@ -149,10 +149,10 @@ func (adg *AdgenerationAdapter) getRawQuery(id string, request *openrtb2.BidRequ
 func unmarshalExtImpAdgeneration(imp *openrtb2.Imp) (*openrtb_ext.ExtImpAdgeneration, error) {
 	var bidderExt adapters.ExtImpBidder
 	var adgExt openrtb_ext.ExtImpAdgeneration
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, err
 	}
-	if err := json.Unmarshal(bidderExt.Bidder, &adgExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &adgExt); err != nil {
 		return nil, err
 	}
 	if adgExt.Id == "" {
@@ -203,7 +203,7 @@ func (adg *AdgenerationAdapter) MakeBids(internalRequest *openrtb2.BidRequest, e
 		}}
 	}
 	var bidResp adgServerResponse
-	err := json.Unmarshal(response.Body, &bidResp)
+	err := jsonutil.Unmarshal(response.Body, &bidResp)
 	if err != nil {
 		return nil, []error{err}
 	}
diff --git a/adapters/adgeneration/adgeneration_test.go b/adapters/adgeneration/adgeneration_test.go
index 24e1de5eccd..e12ed431f04 100644
--- a/adapters/adgeneration/adgeneration_test.go
+++ b/adapters/adgeneration/adgeneration_test.go
@@ -5,10 +5,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/adgeneration/params_test.go b/adapters/adgeneration/params_test.go
index 58400e96656..bdef4ec1d05 100644
--- a/adapters/adgeneration/params_test.go
+++ b/adapters/adgeneration/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/adhese/adhese.go b/adapters/adhese/adhese.go
index 09bd4ba8041..181cc661e46 100644
--- a/adapters/adhese/adhese.go
+++ b/adapters/adhese/adhese.go
@@ -11,11 +11,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type AdheseAdapter struct {
@@ -32,7 +33,7 @@ func extractTargetParameters(parameters openrtb_ext.ExtImpAdhese) string {
 	}
 	var parametersAsString = ""
 	var targetParsed map[string]interface{}
-	err := json.Unmarshal(parameters.Keywords, &targetParsed)
+	err := jsonutil.Unmarshal(parameters.Keywords, &targetParsed)
 	if err != nil {
 		return ""
 	}
@@ -59,7 +60,7 @@ func extractTargetParameters(parameters openrtb_ext.ExtImpAdhese) string {
 func extractGdprParameter(request *openrtb2.BidRequest) string {
 	if request.User != nil {
 		var extUser openrtb_ext.ExtUser
-		if err := json.Unmarshal(request.User.Ext, &extUser); err == nil {
+		if err := jsonutil.Unmarshal(request.User.Ext, &extUser); err == nil {
 			return "/xt" + extUser.Consent
 		}
 	}
@@ -94,13 +95,13 @@ func (a *AdheseAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adap
 	var imp = &request.Imp[0]
 	var bidderExt adapters.ExtImpBidder
 
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		errs = append(errs, WrapReqError("Request could not be parsed as ExtImpBidder due to: "+err.Error()))
 		return nil, errs
 	}
 
 	var params openrtb_ext.ExtImpAdhese
-	if err := json.Unmarshal(bidderExt.Bidder, &params); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &params); err != nil {
 		errs = append(errs, WrapReqError("Request could not be parsed as ExtImpAdhese due to: "+err.Error()))
 		return nil, errs
 	}
@@ -138,7 +139,7 @@ func (a *AdheseAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 	var bidResponse openrtb2.BidResponse
 
 	var adheseBidResponseArray []AdheseBid
-	if err := json.Unmarshal(response.Body, &adheseBidResponseArray); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &adheseBidResponseArray); err != nil {
 		return nil, []error{err, WrapServerError(fmt.Sprintf("Response %v could not be parsed as generic Adhese bid.", string(response.Body)))}
 	}
 
@@ -150,11 +151,11 @@ func (a *AdheseAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 	if adheseBid.Origin == "JERLICIA" {
 		var extArray []AdheseExt
 		var originDataArray []AdheseOriginData
-		if err := json.Unmarshal(response.Body, &extArray); err != nil {
+		if err := jsonutil.Unmarshal(response.Body, &extArray); err != nil {
 			return nil, []error{err, WrapServerError(fmt.Sprintf("Response %v could not be parsed to JERLICIA ext.", string(response.Body)))}
 		}
 
-		if err := json.Unmarshal(response.Body, &originDataArray); err != nil {
+		if err := jsonutil.Unmarshal(response.Body, &originDataArray); err != nil {
 			return nil, []error{err, WrapServerError(fmt.Sprintf("Response %v could not be parsed to JERLICIA origin data.", string(response.Body)))}
 		}
 		bidResponse = convertAdheseBid(adheseBid, extArray[0], originDataArray[0])
diff --git a/adapters/adhese/adhese_test.go b/adapters/adhese/adhese_test.go
index 2b70bb001a6..b8abd82a06f 100644
--- a/adapters/adhese/adhese_test.go
+++ b/adapters/adhese/adhese_test.go
@@ -3,9 +3,9 @@ package adhese
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/adhese/adhesetest/supplemental/req-invalid-empty-imp-ext.json b/adapters/adhese/adhesetest/supplemental/req-invalid-empty-imp-ext.json
index e98823b2914..9169847be35 100644
--- a/adapters/adhese/adhesetest/supplemental/req-invalid-empty-imp-ext.json
+++ b/adapters/adhese/adhesetest/supplemental/req-invalid-empty-imp-ext.json
@@ -31,8 +31,8 @@
   "expectedBidResponses": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Request could not be parsed as ExtImpAdhese due to: unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "Request could not be parsed as ExtImpAdhese due to: expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
\ No newline at end of file
diff --git a/adapters/adhese/adhesetest/supplemental/req-invalid-no-imp-ext.json b/adapters/adhese/adhesetest/supplemental/req-invalid-no-imp-ext.json
index bcb891719ae..76f5315c1cb 100644
--- a/adapters/adhese/adhesetest/supplemental/req-invalid-no-imp-ext.json
+++ b/adapters/adhese/adhesetest/supplemental/req-invalid-no-imp-ext.json
@@ -30,8 +30,8 @@
     "expectedBidResponses": [],
     "expectedMakeRequestsErrors": [
       {
-        "value": "Request could not be parsed as ExtImpBidder due to: unexpected end of JSON input",
-        "comparison": "literal"
+        "value": "Request could not be parsed as ExtImpBidder due to: expect { or n, but found",
+        "comparison": "startswith"
       }
     ]
   }
\ No newline at end of file
diff --git a/adapters/adhese/adhesetest/supplemental/res-invalid-height.json b/adapters/adhese/adhesetest/supplemental/res-invalid-height.json
index 86ff3e49692..4c7989cb56b 100644
--- a/adapters/adhese/adhesetest/supplemental/res-invalid-height.json
+++ b/adapters/adhese/adhesetest/supplemental/res-invalid-height.json
@@ -82,7 +82,7 @@
   "expectedBidResponses": [],
     "expectedMakeBidsErrors": [
       {
-        "value": "json: cannot unmarshal number into Go struct field AdheseBid.height of type string",
+        "value": "cannot unmarshal adhese.AdheseBid.Height: expects \" or n, but found 9",
         "comparison": "literal"
       }, {
         "value": "Response (.*\n.*)+ could not be parsed as generic Adhese bid",
diff --git a/adapters/adhese/adhesetest/supplemental/res-invalid-no-body.json b/adapters/adhese/adhesetest/supplemental/res-invalid-no-body.json
index f05ca15a862..1ec91d9ad0a 100644
--- a/adapters/adhese/adhesetest/supplemental/res-invalid-no-body.json
+++ b/adapters/adhese/adhesetest/supplemental/res-invalid-no-body.json
@@ -53,8 +53,8 @@
     "expectedBidResponses": [],
     "expectedMakeBidsErrors": [
       {
-        "value": "unexpected end of JSON input",
-        "comparison": "literal"
+        "value": "decode slice: expect [ or n, but found",
+        "comparison": "startswith"
       },{
         "value": "Response  could not be parsed as generic Adhese bid.",
         "comparison": "literal"
diff --git a/adapters/adhese/adhesetest/supplemental/res-invalid-price.json b/adapters/adhese/adhesetest/supplemental/res-invalid-price.json
index 9505af358bf..7fcbc298876 100644
--- a/adapters/adhese/adhesetest/supplemental/res-invalid-price.json
+++ b/adapters/adhese/adhesetest/supplemental/res-invalid-price.json
@@ -82,7 +82,7 @@
   "expectedBidResponses": [],
     "expectedMakeBidsErrors": [
       {
-        "value": "json: cannot unmarshal number into Go struct field CPMValues.*\\.amount of type string",
+        "value": "cannot unmarshal adhese.CPMValues.Amount: expects \" or n, but found 1",
         "comparison": "regex"
       }, {
         "value": "Response (.*\n.*)+ could not be parsed as generic Adhese bid",
diff --git a/adapters/adhese/adhesetest/supplemental/res-invalid-width.json b/adapters/adhese/adhesetest/supplemental/res-invalid-width.json
index b554ed65450..139a5c598a1 100644
--- a/adapters/adhese/adhesetest/supplemental/res-invalid-width.json
+++ b/adapters/adhese/adhesetest/supplemental/res-invalid-width.json
@@ -82,7 +82,7 @@
   "expectedBidResponses": [],
     "expectedMakeBidsErrors": [
       {
-        "value": "json: cannot unmarshal number into Go struct field AdheseBid.width of type string",
+        "value": "cannot unmarshal adhese.AdheseBid.Width: expects \" or n, but found 7",
         "comparison": "literal"
       }, {
         "value": "Response (.*\n.*)+ could not be parsed as generic Adhese bid",
diff --git a/adapters/adhese/params_test.go b/adapters/adhese/params_test.go
index 1a0aa381cb1..b8ca161d57d 100644
--- a/adapters/adhese/params_test.go
+++ b/adapters/adhese/params_test.go
@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/adkernel/adkernel.go b/adapters/adkernel/adkernel.go
index 2b3df333975..443da423fc9 100644
--- a/adapters/adkernel/adkernel.go
+++ b/adapters/adkernel/adkernel.go
@@ -9,11 +9,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
@@ -169,13 +170,13 @@ func splitMultiFormatImp(imp *openrtb2.Imp) []openrtb2.Imp {
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpAdkernel, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 	var adkernelExt openrtb_ext.ExtImpAdkernel
-	if err := json.Unmarshal(bidderExt.Bidder, &adkernelExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &adkernelExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -243,7 +244,7 @@ func (adapter *adkernelAdapter) MakeBids(internalRequest *openrtb2.BidRequest, e
 		}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{
 			newBadServerResponseError(fmt.Sprintf("Bad server response: %d", err)),
 		}
diff --git a/adapters/adkernel/adkernel_test.go b/adapters/adkernel/adkernel_test.go
index e7ff02e4c03..f874e92d57e 100644
--- a/adapters/adkernel/adkernel_test.go
+++ b/adapters/adkernel/adkernel_test.go
@@ -3,9 +3,9 @@ package adkernel
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/adkernelAdn/adkernelAdn.go b/adapters/adkernelAdn/adkernelAdn.go
index 33e5ee93b05..ffee88250ca 100644
--- a/adapters/adkernelAdn/adkernelAdn.go
+++ b/adapters/adkernelAdn/adkernelAdn.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adkernelAdnAdapter struct {
@@ -149,13 +150,13 @@ func compatVideoImpression(imp *openrtb2.Imp) error {
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpAdkernelAdn, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 	var adkernelAdnExt openrtb_ext.ExtImpAdkernelAdn
-	if err := json.Unmarshal(bidderExt.Bidder, &adkernelAdnExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &adkernelAdnExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -226,7 +227,7 @@ func (adapter *adkernelAdnAdapter) MakeBids(internalRequest *openrtb2.BidRequest
 		}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{
 			newBadServerResponseError(fmt.Sprintf("Bad server response: %d", err)),
 		}
diff --git a/adapters/adkernelAdn/adkernelAdn_test.go b/adapters/adkernelAdn/adkernelAdn_test.go
index e43d00bf0bf..f99da329403 100644
--- a/adapters/adkernelAdn/adkernelAdn_test.go
+++ b/adapters/adkernelAdn/adkernelAdn_test.go
@@ -3,9 +3,9 @@ package adkernelAdn
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/adkernelAdn/adkerneladntest/supplemental/wrong-imp-ext-1.json b/adapters/adkernelAdn/adkerneladntest/supplemental/wrong-imp-ext-1.json
index 8b2b5837e13..4d5b3228d16 100644
--- a/adapters/adkernelAdn/adkerneladntest/supplemental/wrong-imp-ext-1.json
+++ b/adapters/adkernelAdn/adkerneladntest/supplemental/wrong-imp-ext-1.json
@@ -18,8 +18,8 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go struct field ExtImpAdkernelAdn.pubId of type int",
-      "comparison": "literal"
+      "value": "cannot unmarshal openrtb_ext.ExtImpAdkernelAdn.PublisherID: unexpected character",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/adman/adman.go b/adapters/adman/adman.go
index e6a4da712b3..8f90a0fe5bb 100644
--- a/adapters/adman/adman.go
+++ b/adapters/adman/adman.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // AdmanAdapter struct
@@ -38,12 +39,12 @@ func (a *AdmanAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapt
 		reqCopy.Imp = []openrtb2.Imp{imp}
 
 		var bidderExt adapters.ExtImpBidder
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
 
-		if err = json.Unmarshal(bidderExt.Bidder, &admanExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &admanExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
@@ -98,7 +99,7 @@ func (a *AdmanAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRe
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/adman/adman_test.go b/adapters/adman/adman_test.go
index 5617035c713..1a8eccca62b 100644
--- a/adapters/adman/adman_test.go
+++ b/adapters/adman/adman_test.go
@@ -3,9 +3,9 @@ package adman
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/adman/admantest/supplemental/bad-imp-ext.json b/adapters/adman/admantest/supplemental/bad-imp-ext.json
index db3c8de5767..a4b5cc546f4 100644
--- a/adapters/adman/admantest/supplemental/bad-imp-ext.json
+++ b/adapters/adman/admantest/supplemental/bad-imp-ext.json
@@ -35,8 +35,8 @@
 },
 "expectedMakeRequestsErrors": [
   {
-    "value": "unexpected end of JSON input",
-    "comparison": "literal"
+    "value": "expect { or n, but found",
+    "comparison": "startswith"
   }
 ]
 }
diff --git a/adapters/adman/admantest/supplemental/bad_response.json b/adapters/adman/admantest/supplemental/bad_response.json
index f9920c9069d..96d7a6098ca 100644
--- a/adapters/adman/admantest/supplemental/bad_response.json
+++ b/adapters/adman/admantest/supplemental/bad_response.json
@@ -79,7 +79,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/adman/admantest/supplemental/no-imp-ext-1.json b/adapters/adman/admantest/supplemental/no-imp-ext-1.json
index 8fad5ba5ef0..d93995bb33e 100644
--- a/adapters/adman/admantest/supplemental/no-imp-ext-1.json
+++ b/adapters/adman/admantest/supplemental/no-imp-ext-1.json
@@ -31,7 +31,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/adman/admantest/supplemental/no-imp-ext-2.json b/adapters/adman/admantest/supplemental/no-imp-ext-2.json
index 337dfd044b3..677260f21e4 100644
--- a/adapters/adman/admantest/supplemental/no-imp-ext-2.json
+++ b/adapters/adman/admantest/supplemental/no-imp-ext-2.json
@@ -31,8 +31,8 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
   }
diff --git a/adapters/adman/params_test.go b/adapters/adman/params_test.go
index 9d7e0c16d51..97b3d8f3f2c 100644
--- a/adapters/adman/params_test.go
+++ b/adapters/adman/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // TestValidParams makes sure that the adman schema accepts all imp.ext fields which we intend to support.
diff --git a/adapters/admatic/admatic.go b/adapters/admatic/admatic.go
index 94d966dbfbe..6b0ed99f4df 100644
--- a/adapters/admatic/admatic.go
+++ b/adapters/admatic/admatic.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -65,14 +66,14 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 
 func (a *adapter) buildEndpointFromRequest(imp *openrtb2.Imp) (string, error) {
 	var impExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize bidder impression extension: %v", err),
 		}
 	}
 
 	var admaticExt openrtb_ext.ImpExtAdmatic
-	if err := json.Unmarshal(impExt.Bidder, &admaticExt); err != nil {
+	if err := jsonutil.Unmarshal(impExt.Bidder, &admaticExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize AdMatic extension: %v", err),
 		}
@@ -95,7 +96,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 		return nil, []error{err}
 	}
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/admatic/admatic_test.go b/adapters/admatic/admatic_test.go
index d9e34c1eec7..c98f14e90a0 100644
--- a/adapters/admatic/admatic_test.go
+++ b/adapters/admatic/admatic_test.go
@@ -3,9 +3,9 @@ package admatic
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/admatic/admatictest/supplemental/multiple-imps-with-error.json b/adapters/admatic/admatictest/supplemental/multiple-imps-with-error.json
index c080e57c7e5..b23c794c1ba 100644
--- a/adapters/admatic/admatictest/supplemental/multiple-imps-with-error.json
+++ b/adapters/admatic/admatictest/supplemental/multiple-imps-with-error.json
@@ -93,7 +93,7 @@
   ],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize AdMatic extension: json: cannot unmarshal object into Go struct field ImpExtAdmatic.host of type string",
+      "value": "Failed to deserialize AdMatic extension: cannot unmarshal openrtb_ext.ImpExtAdmatic.Host: expects \" or n, but found {",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/admatic/admatictest/supplemental/response-200-without-body.json b/adapters/admatic/admatictest/supplemental/response-200-without-body.json
index 8db31ad713f..6cded7606e2 100644
--- a/adapters/admatic/admatictest/supplemental/response-200-without-body.json
+++ b/adapters/admatic/admatictest/supplemental/response-200-without-body.json
@@ -57,8 +57,8 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
-}
+}
\ No newline at end of file
diff --git a/adapters/admatic/params_test.go b/adapters/admatic/params_test.go
index 817ee92e803..fc92a1d7799 100644
--- a/adapters/admatic/params_test.go
+++ b/adapters/admatic/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/admixer/admixer.go b/adapters/admixer/admixer.go
index 968b5954103..726c2cb98cc 100644
--- a/adapters/admixer/admixer.go
+++ b/adapters/admixer/admixer.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type AdmixerAdapter struct {
@@ -87,14 +88,14 @@ func (a *AdmixerAdapter) makeRequest(request *openrtb2.BidRequest) (*adapters.Re
 
 func preprocess(imp *openrtb2.Imp) error {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 
 	var admixerExt openrtb_ext.ExtImpAdmixer
-	if err := json.Unmarshal(bidderExt.Bidder, &admixerExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &admixerExt); err != nil {
 		return &errortypes.BadInput{
 			Message: "Wrong Admixer bidder ext",
 		}
@@ -154,7 +155,7 @@ func (a *AdmixerAdapter) MakeBids(internalRequest *openrtb2.BidRequest, external
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/admixer/admixer_test.go b/adapters/admixer/admixer_test.go
index 5985d4303c9..62615a63b3c 100644
--- a/adapters/admixer/admixer_test.go
+++ b/adapters/admixer/admixer_test.go
@@ -3,9 +3,9 @@ package admixer
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/admixer/params_test.go b/adapters/admixer/params_test.go
index af85569b460..cdc8d56c77a 100644
--- a/adapters/admixer/params_test.go
+++ b/adapters/admixer/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/admixer.json
diff --git a/adapters/adnuntius/adnuntius.go b/adapters/adnuntius/adnuntius.go
index a28ac669795..a3024c38d1b 100644
--- a/adapters/adnuntius/adnuntius.go
+++ b/adapters/adnuntius/adnuntius.go
@@ -10,11 +10,12 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/timeutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/timeutil"
 )
 
 type QueryString map[string]string
@@ -140,7 +141,7 @@ func makeEndpointUrl(ortbRequest openrtb2.BidRequest, a *adapter, noCookies bool
 	if !noCookies {
 		var deviceExt extDeviceAdnuntius
 		if ortbRequest.Device != nil && ortbRequest.Device.Ext != nil {
-			if err := json.Unmarshal(ortbRequest.Device.Ext, &deviceExt); err != nil {
+			if err := jsonutil.Unmarshal(ortbRequest.Device.Ext, &deviceExt); err != nil {
 				return "", []error{fmt.Errorf("failed to parse Adnuntius endpoint: %v", err)}
 			}
 		}
@@ -211,14 +212,14 @@ func (a *adapter) generateRequests(ortbRequest openrtb2.BidRequest) ([]*adapters
 		}
 
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			return nil, []error{&errortypes.BadInput{
 				Message: fmt.Sprintf("Error unmarshalling ExtImpBidder: %s", err.Error()),
 			}}
 		}
 
 		var adnuntiusExt openrtb_ext.ImpExtAdnunitus
-		if err := json.Unmarshal(bidderExt.Bidder, &adnuntiusExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &adnuntiusExt); err != nil {
 			return nil, []error{&errortypes.BadInput{
 				Message: fmt.Sprintf("Error unmarshalling ExtImpValues: %s", err.Error()),
 			}}
@@ -273,7 +274,7 @@ func (a *adapter) generateRequests(ortbRequest openrtb2.BidRequest) ([]*adapters
 
 		var extUser openrtb_ext.ExtUser
 		if ortbRequest.User != nil && ortbRequest.User.Ext != nil {
-			if err := json.Unmarshal(ortbRequest.User.Ext, &extUser); err != nil {
+			if err := jsonutil.Unmarshal(ortbRequest.User.Ext, &extUser); err != nil {
 				return nil, []error{fmt.Errorf("failed to parse Ext User: %v", err)}
 			}
 		}
@@ -328,7 +329,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, externalRequest *adapte
 	}
 
 	var adnResponse AdnResponse
-	if err := json.Unmarshal(response.Body, &adnResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &adnResponse); err != nil {
 		return nil, []error{err}
 	}
 
@@ -343,7 +344,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, externalRequest *adapte
 func getSiteExtAsKv(request *openrtb2.BidRequest) (siteExt, error) {
 	var extSite siteExt
 	if request.Site != nil && request.Site.Ext != nil {
-		if err := json.Unmarshal(request.Site.Ext, &extSite); err != nil {
+		if err := jsonutil.Unmarshal(request.Site.Ext, &extSite); err != nil {
 			return extSite, fmt.Errorf("failed to parse ExtSite in Adnuntius: %v", err)
 		}
 	}
@@ -355,7 +356,7 @@ func getGDPR(request *openrtb2.BidRequest) (string, string, error) {
 	gdpr := ""
 	var extRegs openrtb_ext.ExtRegs
 	if request.Regs != nil && request.Regs.Ext != nil {
-		if err := json.Unmarshal(request.Regs.Ext, &extRegs); err != nil {
+		if err := jsonutil.Unmarshal(request.Regs.Ext, &extRegs); err != nil {
 			return "", "", fmt.Errorf("failed to parse ExtRegs in Adnuntius GDPR check: %v", err)
 		}
 		if extRegs.GDPR != nil && (*extRegs.GDPR == 0 || *extRegs.GDPR == 1) {
@@ -366,7 +367,7 @@ func getGDPR(request *openrtb2.BidRequest) (string, string, error) {
 	consent := ""
 	if request.User != nil && request.User.Ext != nil {
 		var extUser openrtb_ext.ExtUser
-		if err := json.Unmarshal(request.User.Ext, &extUser); err != nil {
+		if err := jsonutil.Unmarshal(request.User.Ext, &extUser); err != nil {
 			return "", "", fmt.Errorf("failed to parse ExtUser in Adnuntius GDPR check: %v", err)
 		}
 		consent = extUser.Consent
@@ -381,7 +382,7 @@ func generateReturnExt(ad Ad, request *openrtb2.BidRequest) (json.RawMessage, er
 
 	var requestRegsExt *openrtb_ext.ExtRegs
 	if request.Regs != nil && request.Regs.Ext != nil {
-		if err := json.Unmarshal(request.Regs.Ext, &requestRegsExt); err != nil {
+		if err := jsonutil.Unmarshal(request.Regs.Ext, &requestRegsExt); err != nil {
 
 			return nil, fmt.Errorf("Failed to parse Ext information in Adnuntius: %v", err)
 		}
@@ -428,14 +429,14 @@ func generateAdResponse(ad Ad, imp openrtb2.Imp, html string, request *openrtb2.
 	price := ad.Bid.Amount
 
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, []error{&errortypes.BadInput{
 			Message: fmt.Sprintf("Error unmarshalling ExtImpBidder: %s", err.Error()),
 		}}
 	}
 
 	var adnuntiusExt openrtb_ext.ImpExtAdnunitus
-	if err := json.Unmarshal(bidderExt.Bidder, &adnuntiusExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &adnuntiusExt); err != nil {
 		return nil, []error{&errortypes.BadInput{
 			Message: fmt.Sprintf("Error unmarshalling ExtImpValues: %s", err.Error()),
 		}}
diff --git a/adapters/adnuntius/adnuntius_test.go b/adapters/adnuntius/adnuntius_test.go
index f6edb313708..8b048f7996b 100644
--- a/adapters/adnuntius/adnuntius_test.go
+++ b/adapters/adnuntius/adnuntius_test.go
@@ -4,10 +4,10 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/adnuntius/adnuntiustest/supplemental/check-price-type-error.json b/adapters/adnuntius/adnuntiustest/supplemental/check-price-type-error.json
index 89016087a43..35129b1ee54 100644
--- a/adapters/adnuntius/adnuntiustest/supplemental/check-price-type-error.json
+++ b/adapters/adnuntius/adnuntiustest/supplemental/check-price-type-error.json
@@ -31,7 +31,7 @@
 	"httpCalls": [],
 	"expectedMakeRequestsErrors": [
 		{
-			"value": "Error unmarshalling ExtImpValues: json: cannot unmarshal number into Go struct field ImpExtAdnunitus.bidType of type string",
+			"value": "Error unmarshalling ExtImpValues: cannot unmarshal openrtb_ext.ImpExtAdnunitus.BidType: expects \" or n, but found 1",
 			"comparison": "literal"
 		}
 	]
diff --git a/adapters/adnuntius/adnuntiustest/supplemental/height-error.json b/adapters/adnuntius/adnuntiustest/supplemental/height-error.json
index 770f1db032f..4f066aa7e1f 100644
--- a/adapters/adnuntius/adnuntiustest/supplemental/height-error.json
+++ b/adapters/adnuntius/adnuntiustest/supplemental/height-error.json
@@ -82,7 +82,7 @@
 	],
 	"expectedMakeBidsErrors": [
 		{
-			"value": "json: cannot unmarshal number into Go struct field Ad.AdUnits.Ads.CreativeHeight of type string",
+			"value": "cannot unmarshal adnuntius.Ad.CreativeHeight: expects \" or n, but found 2",
 			"comparison": "literal"
 		}
 	]
diff --git a/adapters/adnuntius/adnuntiustest/supplemental/invalid-regs-ext.json b/adapters/adnuntius/adnuntiustest/supplemental/invalid-regs-ext.json
index bf0365f60a9..27e043de1cb 100644
--- a/adapters/adnuntius/adnuntiustest/supplemental/invalid-regs-ext.json
+++ b/adapters/adnuntius/adnuntiustest/supplemental/invalid-regs-ext.json
@@ -39,7 +39,7 @@
 	},
 	"expectedMakeRequestsErrors": [
 		{
-			"value": "failed to parse URL: [failed to parse Adnuntius endpoint: failed to parse ExtRegs in Adnuntius GDPR check: json: cannot unmarshal string into Go value of type openrtb_ext.ExtRegs]",
+			"value": "failed to parse URL: [failed to parse Adnuntius endpoint: failed to parse ExtRegs in Adnuntius GDPR check: expect { or n, but found \"]",
 			"comparison": "literal"
 		}
 	]
diff --git a/adapters/adnuntius/adnuntiustest/supplemental/width-error.json b/adapters/adnuntius/adnuntiustest/supplemental/width-error.json
index 63d52302376..96d98a98b85 100644
--- a/adapters/adnuntius/adnuntiustest/supplemental/width-error.json
+++ b/adapters/adnuntius/adnuntiustest/supplemental/width-error.json
@@ -82,7 +82,7 @@
 	],
 	"expectedMakeBidsErrors": [
 		{
-			"value": "json: cannot unmarshal number into Go struct field Ad.AdUnits.Ads.CreativeWidth of type string",
+			"value": "cannot unmarshal adnuntius.Ad.CreativeWidth: expects \" or n, but found 9",
 			"comparison": "literal"
 		}
 	]
diff --git a/adapters/adnuntius/params_test.go b/adapters/adnuntius/params_test.go
index 259b5145801..92db0b9e5ad 100644
--- a/adapters/adnuntius/params_test.go
+++ b/adapters/adnuntius/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/adnuntius.json
diff --git a/adapters/adocean/adocean.go b/adapters/adocean/adocean.go
index 560df4893b9..82f32001596 100644
--- a/adapters/adocean/adocean.go
+++ b/adapters/adocean/adocean.go
@@ -1,7 +1,6 @@
 package adocean
 
 import (
-	"encoding/json"
 	"errors"
 	"fmt"
 	"math/rand"
@@ -14,11 +13,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const adapterVersion = "1.3.0"
@@ -91,7 +91,7 @@ func (a *AdOceanAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *ada
 	consentString := ""
 	if request.User != nil {
 		var extUser openrtb_ext.ExtUser
-		if err := json.Unmarshal(request.User.Ext, &extUser); err == nil {
+		if err := jsonutil.Unmarshal(request.User.Ext, &extUser); err == nil {
 			consentString = extUser.Consent
 		}
 	}
@@ -126,14 +126,14 @@ func (a *AdOceanAdapter) addNewBid(
 	consentString string,
 ) ([]*requestData, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return requestsData, &errortypes.BadInput{
 			Message: "Error parsing bidderExt object",
 		}
 	}
 
 	var adOceanExt openrtb_ext.ExtImpAdOcean
-	if err := json.Unmarshal(bidderExt.Bidder, &adOceanExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &adOceanExt); err != nil {
 		return requestsData, &errortypes.BadInput{
 			Message: "Error parsing adOceanExt parameters",
 		}
@@ -349,7 +349,7 @@ func (a *AdOceanAdapter) MakeBids(
 	auctionIDs := queryParams["aid"]
 
 	bidResponses := make([]ResponseAdUnit, 0)
-	if err := json.Unmarshal(response.Body, &bidResponses); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResponses); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/adocean/adocean_test.go b/adapters/adocean/adocean_test.go
index d7fe33b8de5..4fb784bfc01 100644
--- a/adapters/adocean/adocean_test.go
+++ b/adapters/adocean/adocean_test.go
@@ -3,9 +3,9 @@ package adocean
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/adocean/adoceantest/supplemental/app.json b/adapters/adocean/adoceantest/supplemental/app.json
index b68798d362c..28c67bdf818 100644
--- a/adapters/adocean/adoceantest/supplemental/app.json
+++ b/adapters/adocean/adoceantest/supplemental/app.json
@@ -65,7 +65,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type []adocean.ResponseAdUnit",
+      "value": "decode slice: expect [ or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/adocean/adoceantest/supplemental/bad-response.json b/adapters/adocean/adoceantest/supplemental/bad-response.json
index 9bf3ab16069..eb1bcb6ef0c 100644
--- a/adapters/adocean/adoceantest/supplemental/bad-response.json
+++ b/adapters/adocean/adoceantest/supplemental/bad-response.json
@@ -60,7 +60,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type []adocean.ResponseAdUnit",
+      "value": "decode slice: expect [ or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/adocean/params_test.go b/adapters/adocean/params_test.go
index f35dc1aaf87..0840d10847c 100644
--- a/adapters/adocean/params_test.go
+++ b/adapters/adocean/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/adoppler/adoppler.go b/adapters/adoppler/adoppler.go
index ff588991493..ace52b93b1d 100644
--- a/adapters/adoppler/adoppler.go
+++ b/adapters/adoppler/adoppler.go
@@ -9,11 +9,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const DefaultClient = "app"
@@ -121,7 +122,7 @@ func (ads *AdopplerAdapter) MakeBids(
 	}
 
 	var bidResp openrtb2.BidResponse
-	err := json.Unmarshal(resp.Body, &bidResp)
+	err := jsonutil.Unmarshal(resp.Body, &bidResp)
 	if err != nil {
 		err := &errortypes.BadServerResponse{
 			Message: fmt.Sprintf("invalid body: %s", err.Error()),
@@ -206,13 +207,13 @@ func (ads *AdopplerAdapter) bidUri(ext *openrtb_ext.ExtImpAdoppler) (string, err
 
 func unmarshalExt(ext json.RawMessage) (*openrtb_ext.ExtImpAdoppler, error) {
 	var bext adapters.ExtImpBidder
-	err := json.Unmarshal(ext, &bext)
+	err := jsonutil.Unmarshal(ext, &bext)
 	if err != nil {
 		return nil, err
 	}
 
 	var adsExt openrtb_ext.ExtImpAdoppler
-	err = json.Unmarshal(bext.Bidder, &adsExt)
+	err = jsonutil.Unmarshal(bext.Bidder, &adsExt)
 	if err != nil {
 		return nil, err
 	}
@@ -228,7 +229,7 @@ func unmarshalAdsExt(ext json.RawMessage) (*adsImpExt, error) {
 	var e struct {
 		Ads *adsImpExt `json:"ads"`
 	}
-	err := json.Unmarshal(ext, &e)
+	err := jsonutil.Unmarshal(ext, &e)
 
 	return e.Ads, err
 }
diff --git a/adapters/adoppler/adoppler_test.go b/adapters/adoppler/adoppler_test.go
index d05118c4800..3c6888f3124 100644
--- a/adapters/adoppler/adoppler_test.go
+++ b/adapters/adoppler/adoppler_test.go
@@ -3,9 +3,9 @@ package adoppler
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/adoppler/adopplertest/supplemental/invalid-response.json b/adapters/adoppler/adopplertest/supplemental/invalid-response.json
index 14853d68bdc..84342feaa0e 100644
--- a/adapters/adoppler/adopplertest/supplemental/invalid-response.json
+++ b/adapters/adoppler/adopplertest/supplemental/invalid-response.json
@@ -50,7 +50,7 @@
   ],
   "expectedMakeBidsErrors":[
     {
-      "value":"invalid body: json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value":"invalid body: expect { or n, but found \"",
       "comparison":"literal"
     }
   ]
diff --git a/adapters/adoppler/adopplertest/supplemental/invalid-video-ext.json b/adapters/adoppler/adopplertest/supplemental/invalid-video-ext.json
index 84af94e2e3f..6bab4036c5c 100644
--- a/adapters/adoppler/adopplertest/supplemental/invalid-video-ext.json
+++ b/adapters/adoppler/adopplertest/supplemental/invalid-video-ext.json
@@ -140,7 +140,7 @@
       "comparison":"literal"
     },
     {
-      "value":"json: cannot unmarshal string into Go value of type struct { Ads *adoppler.adsImpExt \"json:\\\"ads\\\"\" }",
+      "value":"expect { or n, but found \"",
       "comparison":"literal"
     }
   ]
diff --git a/adapters/adot/adot.go b/adapters/adot/adot.go
index f86281bf79e..fc32ef6cae4 100644
--- a/adapters/adot/adot.go
+++ b/adapters/adot/adot.go
@@ -8,10 +8,11 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -84,7 +85,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -116,7 +117,7 @@ func getMediaTypeForBid(bid *openrtb2.Bid) (openrtb_ext.BidType, error) {
 	}
 
 	var impExt adotBidExt
-	if err := json.Unmarshal(bid.Ext, &impExt); err == nil {
+	if err := jsonutil.Unmarshal(bid.Ext, &impExt); err == nil {
 		switch impExt.Adot.MediaType {
 		case string(openrtb_ext.BidTypeBanner):
 			return openrtb_ext.BidTypeBanner, nil
@@ -144,11 +145,11 @@ func resolveMacros(bid *openrtb2.Bid) {
 func getImpAdotExt(imp *openrtb2.Imp) *openrtb_ext.ExtImpAdot {
 	var extImpAdot openrtb_ext.ExtImpAdot
 	var extBidder adapters.ExtImpBidder
-	err := json.Unmarshal(imp.Ext, &extBidder)
+	err := jsonutil.Unmarshal(imp.Ext, &extBidder)
 	if err != nil {
 		return nil
 	}
-	err = json.Unmarshal(extBidder.Bidder, &extImpAdot)
+	err = jsonutil.Unmarshal(extBidder.Bidder, &extImpAdot)
 	if err != nil {
 		return nil
 	}
diff --git a/adapters/adot/adot_test.go b/adapters/adot/adot_test.go
index 236287fffa0..d5d5afc6c47 100644
--- a/adapters/adot/adot_test.go
+++ b/adapters/adot/adot_test.go
@@ -5,10 +5,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/adot/adottest/supplemental/unmarshal_error.json b/adapters/adot/adottest/supplemental/unmarshal_error.json
index c9c6db88ea7..68154164f47 100644
--- a/adapters/adot/adottest/supplemental/unmarshal_error.json
+++ b/adapters/adot/adottest/supplemental/unmarshal_error.json
@@ -56,7 +56,7 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/adot/params_test.go b/adapters/adot/params_test.go
index a47ff2ff4eb..99f8c9d932c 100644
--- a/adapters/adot/params_test.go
+++ b/adapters/adot/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/adot.json
diff --git a/adapters/adpone/adpone.go b/adapters/adpone/adpone.go
index c4965f927a9..bdf72398897 100644
--- a/adapters/adpone/adpone.go
+++ b/adapters/adpone/adpone.go
@@ -6,11 +6,12 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // Builder builds a new instance of the Adpone adapter for the given bidder with the given config.
@@ -35,11 +36,11 @@ func (adapter *adponeAdapter) MakeRequests(
 	if len(openRTBRequest.Imp) > 0 {
 		var imp = &openRTBRequest.Imp[0]
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, newBadInputError(err.Error()))
 		}
 		var ttxExt openrtb_ext.ExtAdpone
-		if err := json.Unmarshal(bidderExt.Bidder, &ttxExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &ttxExt); err != nil {
 			errs = append(errs, newBadInputError(err.Error()))
 		}
 	}
@@ -101,7 +102,7 @@ func (adapter *adponeAdapter) MakeBids(
 	}
 
 	var openRTBBidderResponse openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/adpone/adpone_test.go b/adapters/adpone/adpone_test.go
index bd4f5ed514e..e90055b2e65 100644
--- a/adapters/adpone/adpone_test.go
+++ b/adapters/adpone/adpone_test.go
@@ -3,9 +3,9 @@ package adpone
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsDir = "adponetest"
diff --git a/adapters/adpone/adponetest/supplemental/bad_response.json b/adapters/adpone/adponetest/supplemental/bad_response.json
index 38714ea78b4..2200f89ecd4 100644
--- a/adapters/adpone/adponetest/supplemental/bad_response.json
+++ b/adapters/adpone/adponetest/supplemental/bad_response.json
@@ -57,7 +57,7 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/adprime/adprime.go b/adapters/adprime/adprime.go
index 2c6c319ef05..a4c041ae325 100644
--- a/adapters/adprime/adprime.go
+++ b/adapters/adprime/adprime.go
@@ -7,10 +7,11 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // AdprimeAdapter struct
@@ -40,13 +41,13 @@ func (a *AdprimeAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *ada
 	for _, imp := range request.Imp {
 		reqCopy.Imp = []openrtb2.Imp{imp}
 
-		err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt)
+		err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt)
 		if err != nil {
 			errs = append(errs, err)
 			return nil, errs
 		}
 
-		err = json.Unmarshal(bidderExt.Bidder, &adprimeExt)
+		err = jsonutil.Unmarshal(bidderExt.Bidder, &adprimeExt)
 		if err != nil {
 			errs = append(errs, err)
 			return nil, errs
@@ -141,7 +142,7 @@ func (a *AdprimeAdapter) MakeBids(internalRequest *openrtb2.BidRequest, external
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/adprime/adprime_test.go b/adapters/adprime/adprime_test.go
index 34dde15d1ba..0b238b5bee0 100644
--- a/adapters/adprime/adprime_test.go
+++ b/adapters/adprime/adprime_test.go
@@ -3,9 +3,9 @@ package adprime
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/adprime/adprimetest/supplemental/bad-imp-ext.json b/adapters/adprime/adprimetest/supplemental/bad-imp-ext.json
index 39cd3cd02ce..d2ce5d82cb2 100644
--- a/adapters/adprime/adprimetest/supplemental/bad-imp-ext.json
+++ b/adapters/adprime/adprimetest/supplemental/bad-imp-ext.json
@@ -35,8 +35,8 @@
     },
     "expectedMakeRequestsErrors": [
         {
-            "value": "unexpected end of JSON input",
-            "comparison": "literal"
+            "value": "expect { or n, but found",
+            "comparison": "startswith"
         }
     ]
 }
\ No newline at end of file
diff --git a/adapters/adprime/adprimetest/supplemental/bad_response.json b/adapters/adprime/adprimetest/supplemental/bad_response.json
index f28c8864d8e..9893a1a6684 100644
--- a/adapters/adprime/adprimetest/supplemental/bad_response.json
+++ b/adapters/adprime/adprimetest/supplemental/bad_response.json
@@ -81,7 +81,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/adprime/adprimetest/supplemental/no-imp-ext-1.json b/adapters/adprime/adprimetest/supplemental/no-imp-ext-1.json
index 5ba65925a70..ef5c3009a34 100644
--- a/adapters/adprime/adprimetest/supplemental/no-imp-ext-1.json
+++ b/adapters/adprime/adprimetest/supplemental/no-imp-ext-1.json
@@ -31,7 +31,7 @@
     },
     "expectedMakeRequestsErrors": [
         {
-            "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+            "value": "expect { or n, but found \"",
             "comparison": "literal"
         }
     ]
diff --git a/adapters/adprime/adprimetest/supplemental/no-imp-ext-2.json b/adapters/adprime/adprimetest/supplemental/no-imp-ext-2.json
index e08f5385b88..f9378c48881 100644
--- a/adapters/adprime/adprimetest/supplemental/no-imp-ext-2.json
+++ b/adapters/adprime/adprimetest/supplemental/no-imp-ext-2.json
@@ -31,8 +31,8 @@
     },
     "expectedMakeRequestsErrors": [
         {
-            "value": "unexpected end of JSON input",
-            "comparison": "literal"
+            "value": "expect { or n, but found",
+            "comparison": "startswith"
         }
     ]
 }
\ No newline at end of file
diff --git a/adapters/adprime/params_test.go b/adapters/adprime/params_test.go
index 67bbebf0086..18556d990ec 100644
--- a/adapters/adprime/params_test.go
+++ b/adapters/adprime/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // TestValidParams makes sure that the adprime schema accepts all imp.ext fields which we intend to support.
diff --git a/adapters/adquery/adquery.go b/adapters/adquery/adquery.go
index f615c6ad27d..41813700058 100644
--- a/adapters/adquery/adquery.go
+++ b/adapters/adquery/adquery.go
@@ -9,10 +9,11 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
@@ -160,13 +161,13 @@ func buildRequest(bidReq *openrtb2.BidRequest, imp *openrtb2.Imp, ext *openrtb_e
 
 func parseExt(ext json.RawMessage) (*openrtb_ext.ImpExtAdQuery, error) {
 	var bext adapters.ExtImpBidder
-	err := json.Unmarshal(ext, &bext)
+	err := jsonutil.Unmarshal(ext, &bext)
 	if err != nil {
 		return nil, err
 	}
 
 	var adsExt openrtb_ext.ImpExtAdQuery
-	err = json.Unmarshal(bext.Bidder, &adsExt)
+	err = jsonutil.Unmarshal(bext.Bidder, &adsExt)
 	if err != nil {
 		return nil, err
 	}
@@ -177,7 +178,7 @@ func parseExt(ext json.RawMessage) (*openrtb_ext.ImpExtAdQuery, error) {
 
 func parseResponseJson(respBody []byte) (*ResponseData, float64, int64, int64, []error) {
 	var response ResponseAdQuery
-	if err := json.Unmarshal(respBody, &response); err != nil {
+	if err := jsonutil.Unmarshal(respBody, &response); err != nil {
 		return nil, 0, 0, 0, []error{err}
 	}
 
diff --git a/adapters/adquery/adquery_test.go b/adapters/adquery/adquery_test.go
index 792e7c553a8..913e5781950 100644
--- a/adapters/adquery/adquery_test.go
+++ b/adapters/adquery/adquery_test.go
@@ -3,9 +3,9 @@ package adquery
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/adquery/adquerytest/supplemental/malformed-ext.json b/adapters/adquery/adquerytest/supplemental/malformed-ext.json
index 46aaaed431d..aa035c5852b 100644
--- a/adapters/adquery/adquerytest/supplemental/malformed-ext.json
+++ b/adapters/adquery/adquerytest/supplemental/malformed-ext.json
@@ -32,7 +32,7 @@
     "bidder": "adquery"
   },
   "expectedMakeRequestsErrors": [{
-    "value": "json: cannot unmarshal array into Go struct field ImpExtAdQuery.placementId of type string",
+    "value": "cannot unmarshal openrtb_ext.ImpExtAdQuery.PlacementID: expects \" or n, but found [",
     "comparison": "literal"
   }]
 }
\ No newline at end of file
diff --git a/adapters/adquery/adquerytest/supplemental/malformed-resp.json b/adapters/adquery/adquerytest/supplemental/malformed-resp.json
index c65c32cb4fb..f485f394c87 100644
--- a/adapters/adquery/adquerytest/supplemental/malformed-resp.json
+++ b/adapters/adquery/adquerytest/supplemental/malformed-resp.json
@@ -105,8 +105,8 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go struct field ResponseData.data.creationId of type int64",
-      "comparison": "literal"
+      "value": "cannot unmarshal adquery.ResponseData.CrID: unexpected character",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/adquery/params_test.go b/adapters/adquery/params_test.go
index e72b0b02ea3..5619f59cb5e 100644
--- a/adapters/adquery/params_test.go
+++ b/adapters/adquery/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/adquery/types.go b/adapters/adquery/types.go
index dab9619a7f5..62692bb0d02 100644
--- a/adapters/adquery/types.go
+++ b/adapters/adquery/types.go
@@ -1,6 +1,6 @@
 package adquery
 
-import "github.com/prebid/prebid-server/v2/openrtb_ext"
+import "github.com/prebid/prebid-server/v3/openrtb_ext"
 
 type BidderRequest struct {
 	V                   string `json:"v"`
diff --git a/adapters/adrino/adrino.go b/adapters/adrino/adrino.go
index 830d7d3aca3..9139d01789a 100644
--- a/adapters/adrino/adrino.go
+++ b/adapters/adrino/adrino.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -58,7 +59,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/adrino/adrino_test.go b/adapters/adrino/adrino_test.go
index e969868c135..48875bed7cc 100644
--- a/adapters/adrino/adrino_test.go
+++ b/adapters/adrino/adrino_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/adrino/params_test.go b/adapters/adrino/params_test.go
index 0ad36e6e4d6..a160113fbd1 100644
--- a/adapters/adrino/params_test.go
+++ b/adapters/adrino/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/adrino.json
diff --git a/adapters/adsinteractive/adsinteractive.go b/adapters/adsinteractive/adsinteractive.go
index c1b521be9f2..1969ceb7cc9 100644
--- a/adapters/adsinteractive/adsinteractive.go
+++ b/adapters/adsinteractive/adsinteractive.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -60,7 +61,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/adsinteractive/adsinteractive_test.go b/adapters/adsinteractive/adsinteractive_test.go
index bed577c6003..ae83c615fe8 100644
--- a/adapters/adsinteractive/adsinteractive_test.go
+++ b/adapters/adsinteractive/adsinteractive_test.go
@@ -3,9 +3,9 @@ package adsinteractive
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsDir = "adsinteractivetest"
diff --git a/adapters/adsinteractive/adsinteractivetest/supplemental/bad-response.json b/adapters/adsinteractive/adsinteractivetest/supplemental/bad-response.json
index 1539e000094..3f40cfa3512 100644
--- a/adapters/adsinteractive/adsinteractivetest/supplemental/bad-response.json
+++ b/adapters/adsinteractive/adsinteractivetest/supplemental/bad-response.json
@@ -57,7 +57,7 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/adsinteractive/params_test.go b/adapters/adsinteractive/params_test.go
index caff03a2697..6b377d6aa36 100644
--- a/adapters/adsinteractive/params_test.go
+++ b/adapters/adsinteractive/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/adsinteractive.json
diff --git a/adapters/adtarget/adtarget.go b/adapters/adtarget/adtarget.go
index 7ec92c60a58..c78ffe830f6 100644
--- a/adapters/adtarget/adtarget.go
+++ b/adapters/adtarget/adtarget.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type AdtargetAdapter struct {
@@ -92,7 +93,7 @@ func (a *AdtargetAdapter) MakeBids(bidReq *openrtb2.BidRequest, unused *adapters
 		}}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(httpRes.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(httpRes.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("error while decoding response, err: %s", err),
 		}}
@@ -154,14 +155,14 @@ func validateImpressionAndSetExt(imp *openrtb2.Imp) (int, error) {
 
 	var bidderExt adapters.ExtImpBidder
 
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return 0, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, error while decoding extImpBidder, err: %s", imp.ID, err),
 		}
 	}
 
 	impExt := openrtb_ext.ExtImpAdtarget{}
-	err := json.Unmarshal(bidderExt.Bidder, &impExt)
+	err := jsonutil.Unmarshal(bidderExt.Bidder, &impExt)
 	if err != nil {
 		return 0, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, error while decoding impExt, err: %s", imp.ID, err),
diff --git a/adapters/adtarget/adtarget_test.go b/adapters/adtarget/adtarget_test.go
index 2813ea2c195..23cb51fdfad 100644
--- a/adapters/adtarget/adtarget_test.go
+++ b/adapters/adtarget/adtarget_test.go
@@ -3,9 +3,9 @@ package adtarget
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/adtarget/adtargettest/supplemental/wrong-impression-ext.json b/adapters/adtarget/adtargettest/supplemental/wrong-impression-ext.json
index ee59cf36439..7f2b1e3cfcb 100644
--- a/adapters/adtarget/adtargettest/supplemental/wrong-impression-ext.json
+++ b/adapters/adtarget/adtargettest/supplemental/wrong-impression-ext.json
@@ -19,7 +19,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "ignoring imp id=unsupported-native-imp, error while decoding impExt, err: json: invalid number literal, trying to unmarshal \"\\\"some string instead of int\\\"\" into Number",
+      "value": "ignoring imp id=unsupported-native-imp, error while encoding impExt, err: json: invalid number literal \"some string instead of int\"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/adtarget/params_test.go b/adapters/adtarget/params_test.go
index 9af435d5753..cb5a8c94791 100644
--- a/adapters/adtarget/params_test.go
+++ b/adapters/adtarget/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/adtarget.json
diff --git a/adapters/adtelligent/adtelligent.go b/adapters/adtelligent/adtelligent.go
index 3bc27a2e604..f56a39736a3 100644
--- a/adapters/adtelligent/adtelligent.go
+++ b/adapters/adtelligent/adtelligent.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type AdtelligentAdapter struct {
@@ -93,7 +94,7 @@ func (a *AdtelligentAdapter) MakeBids(bidReq *openrtb2.BidRequest, unused *adapt
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(httpRes.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(httpRes.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("error while decoding response, err: %s", err),
 		}}
@@ -155,14 +156,14 @@ func validateImpression(imp *openrtb2.Imp) (int, error) {
 
 	var bidderExt adapters.ExtImpBidder
 
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return 0, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, error while decoding extImpBidder, err: %s", imp.ID, err),
 		}
 	}
 
 	impExt := openrtb_ext.ExtImpAdtelligent{}
-	err := json.Unmarshal(bidderExt.Bidder, &impExt)
+	err := jsonutil.Unmarshal(bidderExt.Bidder, &impExt)
 	if err != nil {
 		return 0, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, error while decoding impExt, err: %s", imp.ID, err),
diff --git a/adapters/adtelligent/adtelligent_test.go b/adapters/adtelligent/adtelligent_test.go
index 905ce013840..64a4573ac19 100644
--- a/adapters/adtelligent/adtelligent_test.go
+++ b/adapters/adtelligent/adtelligent_test.go
@@ -3,9 +3,9 @@ package adtelligent
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/adtelligent/adtelligenttest/supplemental/wrong-impression-ext.json b/adapters/adtelligent/adtelligenttest/supplemental/wrong-impression-ext.json
index ee59cf36439..3d7508d2103 100644
--- a/adapters/adtelligent/adtelligenttest/supplemental/wrong-impression-ext.json
+++ b/adapters/adtelligent/adtelligenttest/supplemental/wrong-impression-ext.json
@@ -19,7 +19,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "ignoring imp id=unsupported-native-imp, error while decoding impExt, err: json: invalid number literal, trying to unmarshal \"\\\"some string instead of int\\\"\" into Number",
+      "value": "ignoring imp id=unsupported-native-imp, error while marshaling impExt, err: json: invalid number literal \"some string instead of int\"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/adtelligent/params_test.go b/adapters/adtelligent/params_test.go
index 89fb7397795..bd3a2b85833 100644
--- a/adapters/adtelligent/params_test.go
+++ b/adapters/adtelligent/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/adtelligent.json
diff --git a/adapters/adtonos/adtonos.go b/adapters/adtonos/adtonos.go
index dff60733955..e3c20cd9322 100644
--- a/adapters/adtonos/adtonos.go
+++ b/adapters/adtonos/adtonos.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -32,13 +33,13 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 
 func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
 		return nil, []error{&errortypes.BadInput{
 			Message: fmt.Sprintf("Invalid imp.ext for impression index %d. Error Infomation: %s", 0, err.Error()),
 		}}
 	}
 	var impExt openrtb_ext.ImpExtAdTonos
-	if err := json.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
 		return nil, []error{&errortypes.BadInput{
 			Message: fmt.Sprintf("Invalid imp.ext.bidder for impression index %d. Error Infomation: %s", 0, err.Error()),
 		}}
@@ -84,7 +85,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/adtonos/adtonos_test.go b/adapters/adtonos/adtonos_test.go
index 612e71783be..683ce3e4458 100644
--- a/adapters/adtonos/adtonos_test.go
+++ b/adapters/adtonos/adtonos_test.go
@@ -3,9 +3,9 @@ package adtonos
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/adtonos/params_test.go b/adapters/adtonos/params_test.go
index 98fa85f7b0d..703446c9def 100644
--- a/adapters/adtonos/params_test.go
+++ b/adapters/adtonos/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/adtrgtme/adtrgtme.go b/adapters/adtrgtme/adtrgtme.go
index f2fc09cb322..a592cfc7c43 100644
--- a/adapters/adtrgtme/adtrgtme.go
+++ b/adapters/adtrgtme/adtrgtme.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -67,13 +68,13 @@ func (v *adapter) MakeRequests(
 
 func getSiteIDFromImp(imp *openrtb2.Imp) (uint64, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return 0, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
 	}
 	var ext openrtb_ext.ExtImpAdtrgtme
-	if err := json.Unmarshal(bidderExt.Bidder, &ext); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &ext); err != nil {
 		return 0, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
@@ -147,7 +148,7 @@ func (v *adapter) MakeBids(
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &response); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/adtrgtme/adtrgtme_test.go b/adapters/adtrgtme/adtrgtme_test.go
index 07bfea3c652..d57b5943af1 100644
--- a/adapters/adtrgtme/adtrgtme_test.go
+++ b/adapters/adtrgtme/adtrgtme_test.go
@@ -3,9 +3,9 @@ package adtrgtme
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/adtrgtme/params_test.go b/adapters/adtrgtme/params_test.go
index 4745c323887..19acaedc880 100644
--- a/adapters/adtrgtme/params_test.go
+++ b/adapters/adtrgtme/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/advangelists/advangelists.go b/adapters/advangelists/advangelists.go
index bddb9706c5b..1d4cd4fb648 100644
--- a/adapters/advangelists/advangelists.go
+++ b/adapters/advangelists/advangelists.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type AdvangelistsAdapter struct {
@@ -129,13 +130,13 @@ func compatBannerImpression(imp *openrtb2.Imp) error {
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpAdvangelists, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 	var advangelistsExt openrtb_ext.ExtImpAdvangelists
-	if err := json.Unmarshal(bidderExt.Bidder, &advangelistsExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &advangelistsExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -208,7 +209,7 @@ func (adapter *AdvangelistsAdapter) MakeBids(internalRequest *openrtb2.BidReques
 		return nil, []error{&errortypes.BadServerResponse{Message: msg}}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		msg = fmt.Sprintf("Bad server response: %d", err)
 		return nil, []error{&errortypes.BadServerResponse{Message: msg}}
 	}
diff --git a/adapters/advangelists/advangelists_test.go b/adapters/advangelists/advangelists_test.go
index 5165ef1f3a7..64ae4c89fa1 100644
--- a/adapters/advangelists/advangelists_test.go
+++ b/adapters/advangelists/advangelists_test.go
@@ -3,9 +3,9 @@ package advangelists
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/advangelists/params_test.go b/adapters/advangelists/params_test.go
index 966967ba312..8286f7f84ac 100644
--- a/adapters/advangelists/params_test.go
+++ b/adapters/advangelists/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/adview/adview.go b/adapters/adview/adview.go
index 69e1f27ac9d..55bf2284504 100644
--- a/adapters/adview/adview.go
+++ b/adapters/adview/adview.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -45,7 +46,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 	requestCopy := *request
 	for _, imp := range request.Imp {
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errors = append(errors, &errortypes.BadInput{
 				Message: fmt.Sprintf("invalid imp.ext, %s", err.Error()),
 			})
@@ -53,7 +54,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 		}
 		//use adview
 		var advImpExt openrtb_ext.ExtImpAdView
-		if err := json.Unmarshal(bidderExt.Bidder, &advImpExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &advImpExt); err != nil {
 			errors = append(errors, &errortypes.BadInput{
 				Message: fmt.Sprintf("invalid bidderExt.Bidder, %s", err.Error()),
 			})
@@ -132,7 +133,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/adview/adview_test.go b/adapters/adview/adview_test.go
index 2045586e97d..08e824a097b 100644
--- a/adapters/adview/adview_test.go
+++ b/adapters/adview/adview_test.go
@@ -3,9 +3,9 @@ package adview
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/adview/adviewtest/supplemental/unparsable-response.json b/adapters/adview/adviewtest/supplemental/unparsable-response.json
index af126dab8e7..76f95d1cd6d 100644
--- a/adapters/adview/adviewtest/supplemental/unparsable-response.json
+++ b/adapters/adview/adviewtest/supplemental/unparsable-response.json
@@ -46,7 +46,7 @@
   "expectedBidResponses": [],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal" 
     }
   ]
diff --git a/adapters/adview/params_test.go b/adapters/adview/params_test.go
index d5e498645e0..9dd1c57c2ad 100644
--- a/adapters/adview/params_test.go
+++ b/adapters/adview/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/adxcg/adxcg.go b/adapters/adxcg/adxcg.go
index 3bccf806902..3b5e290ca30 100644
--- a/adapters/adxcg/adxcg.go
+++ b/adapters/adxcg/adxcg.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // Builder builds a new instance of the Adxcg adapter for the given bidder with the given config.
@@ -81,7 +82,7 @@ func (adapter *adapter) MakeBids(
 	}
 
 	var openRTBBidderResponse openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/adxcg/adxcg_test.go b/adapters/adxcg/adxcg_test.go
index f117f7b2ba1..0d947213923 100644
--- a/adapters/adxcg/adxcg_test.go
+++ b/adapters/adxcg/adxcg_test.go
@@ -3,9 +3,9 @@ package adxcg
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsDir = "adxcgtest"
diff --git a/adapters/adxcg/adxcgtest/supplemental/bad_response.json b/adapters/adxcg/adxcgtest/supplemental/bad_response.json
index b8ce74b28a6..e887a114408 100644
--- a/adapters/adxcg/adxcgtest/supplemental/bad_response.json
+++ b/adapters/adxcg/adxcgtest/supplemental/bad_response.json
@@ -55,7 +55,7 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/adyoulike/adyoulike.go b/adapters/adyoulike/adyoulike.go
index babc7627949..dbc76f3f75b 100644
--- a/adapters/adyoulike/adyoulike.go
+++ b/adapters/adyoulike/adyoulike.go
@@ -8,10 +8,11 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
@@ -120,7 +121,7 @@ func (a *adapter) MakeBids(
 	}
 
 	var openRTBBidderResponse openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/adyoulike/adyoulike_test.go b/adapters/adyoulike/adyoulike_test.go
index 2cf7a2b49ec..5a6c91b1c87 100644
--- a/adapters/adyoulike/adyoulike_test.go
+++ b/adapters/adyoulike/adyoulike_test.go
@@ -3,9 +3,9 @@ package adyoulike
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsBidderEndpoint = "https://localhost/bid/4"
diff --git a/adapters/adyoulike/adyouliketest/supplemental/invalid-bid-response.json b/adapters/adyoulike/adyouliketest/supplemental/invalid-bid-response.json
index 2d68274da1a..1b0959a471d 100644
--- a/adapters/adyoulike/adyouliketest/supplemental/invalid-bid-response.json
+++ b/adapters/adyoulike/adyouliketest/supplemental/invalid-bid-response.json
@@ -60,7 +60,7 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/adyoulike/params_test.go b/adapters/adyoulike/params_test.go
index 6eb9e09a3cb..7c6630fbef3 100644
--- a/adapters/adyoulike/params_test.go
+++ b/adapters/adyoulike/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/adyoulike.json
diff --git a/adapters/aidem/aidem.go b/adapters/aidem/aidem.go
index fe1259450ca..d644d83cdf2 100644
--- a/adapters/aidem/aidem.go
+++ b/adapters/aidem/aidem.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -61,7 +62,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("JSON parsing error: %v", err),
 		}}
@@ -122,13 +123,13 @@ func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpAidem, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 	var AIDEMExt openrtb_ext.ExtImpAidem
-	if err := json.Unmarshal(bidderExt.Bidder, &AIDEMExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &AIDEMExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
diff --git a/adapters/aidem/aidem_test.go b/adapters/aidem/aidem_test.go
index 558b1c040de..395bd2ca78b 100644
--- a/adapters/aidem/aidem_test.go
+++ b/adapters/aidem/aidem_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/aidem/params_test.go b/adapters/aidem/params_test.go
index 4d2c5c14cbc..bea1d26e3d1 100644
--- a/adapters/aidem/params_test.go
+++ b/adapters/aidem/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/aidem.json TODO: MUST BE CREATED
diff --git a/adapters/aja/aja.go b/adapters/aja/aja.go
index e65ab357fb3..82007b02d0b 100644
--- a/adapters/aja/aja.go
+++ b/adapters/aja/aja.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type AJAAdapter struct {
@@ -61,13 +62,13 @@ func parseExtAJA(imp openrtb2.Imp) (openrtb_ext.ExtImpAJA, error) {
 		extAJA openrtb_ext.ExtImpAJA
 	)
 
-	if err := json.Unmarshal(imp.Ext, &extImp); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &extImp); err != nil {
 		return extAJA, &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to unmarshal ext impID: %s err: %s", imp.ID, err),
 		}
 	}
 
-	if err := json.Unmarshal(extImp.Bidder, &extAJA); err != nil {
+	if err := jsonutil.Unmarshal(extImp.Bidder, &extAJA); err != nil {
 		return extAJA, &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to unmarshal ext.bidder impID: %s err: %s", imp.ID, err),
 		}
@@ -92,7 +93,7 @@ func (a *AJAAdapter) MakeBids(bidReq *openrtb2.BidRequest, adapterReq *adapters.
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(adapterResp.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(adapterResp.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Failed to unmarshal bid response: %s", err.Error()),
 		}}
diff --git a/adapters/aja/aja_test.go b/adapters/aja/aja_test.go
index de4f1d13dab..ab4165d09ab 100644
--- a/adapters/aja/aja_test.go
+++ b/adapters/aja/aja_test.go
@@ -3,9 +3,9 @@ package aja
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsBidderEndpoint = "https://localhost/bid/4"
diff --git a/adapters/aja/ajatest/supplemental/invalid-ext-bidder.json b/adapters/aja/ajatest/supplemental/invalid-ext-bidder.json
index b12b431b0ed..54a774b3240 100644
--- a/adapters/aja/ajatest/supplemental/invalid-ext-bidder.json
+++ b/adapters/aja/ajatest/supplemental/invalid-ext-bidder.json
@@ -28,7 +28,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to unmarshal ext.bidder impID: test-imp-id err: json: cannot unmarshal number into Go struct field ExtImpAJA.asi of type string",
+      "value": "Failed to unmarshal ext.bidder impID: test-imp-id err: cannot unmarshal openrtb_ext.ExtImpAJA.AdSpotID: expects \" or n, but found 1",
       "comparison": "literal"
     }
 
diff --git a/adapters/aja/ajatest/supplemental/invalid-ext.json b/adapters/aja/ajatest/supplemental/invalid-ext.json
index 478222d0ee9..4562da9eea1 100644
--- a/adapters/aja/ajatest/supplemental/invalid-ext.json
+++ b/adapters/aja/ajatest/supplemental/invalid-ext.json
@@ -24,7 +24,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to unmarshal ext impID: test-imp-id err: json: cannot unmarshal number into Go value of type adapters.ExtImpBidder",
+      "value": "Failed to unmarshal ext impID: test-imp-id err: expect { or n, but found 1",
       "comparison": "literal"
     }
 
diff --git a/adapters/algorix/algorix.go b/adapters/algorix/algorix.go
index 28a1a560829..f6848e58e3c 100644
--- a/adapters/algorix/algorix.go
+++ b/adapters/algorix/algorix.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -88,11 +89,11 @@ func (a *adapter) makeRequest(request *openrtb2.BidRequest) (*adapters.RequestDa
 func getImpAlgoriXExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpAlgorix, error) {
 	var extImpAlgoriX openrtb_ext.ExtImpAlgorix
 	var extBidder adapters.ExtImpBidder
-	err := json.Unmarshal(imp.Ext, &extBidder)
+	err := jsonutil.Unmarshal(imp.Ext, &extBidder)
 	if err != nil {
 		return nil, err
 	}
-	err = json.Unmarshal(extBidder.Bidder, &extImpAlgoriX)
+	err = jsonutil.Unmarshal(extBidder.Bidder, &extImpAlgoriX)
 	if err != nil {
 		return nil, err
 	}
@@ -134,7 +135,7 @@ func preProcess(request *openrtb2.BidRequest) {
 		}
 		if request.Imp[i].Video != nil {
 			var impExt adapters.ExtImpBidder
-			err := json.Unmarshal(request.Imp[i].Ext, &impExt)
+			err := jsonutil.Unmarshal(request.Imp[i].Ext, &impExt)
 			if err != nil {
 				continue
 			}
@@ -169,7 +170,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -195,7 +196,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 func getBidType(bid openrtb2.Bid, imps []openrtb2.Imp) (openrtb_ext.BidType, error) {
 	var bidExt algorixResponseBidExt
-	err := json.Unmarshal(bid.Ext, &bidExt)
+	err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 	if err == nil {
 		switch bidExt.MediaType {
 		case "banner":
diff --git a/adapters/algorix/algorix_test.go b/adapters/algorix/algorix_test.go
index a401713d290..6b6d21e4d15 100644
--- a/adapters/algorix/algorix_test.go
+++ b/adapters/algorix/algorix_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/algorix/algorixtest/supplemental/bad_response.json b/adapters/algorix/algorixtest/supplemental/bad_response.json
index 9c5a44b2f14..6a99f748df2 100644
--- a/adapters/algorix/algorixtest/supplemental/bad_response.json
+++ b/adapters/algorix/algorixtest/supplemental/bad_response.json
@@ -52,7 +52,7 @@
   "expectedMakeBidsErrors": [
     {
       "comparison": "literal",
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse"
+      "value": "expect { or n, but found \""
     }
   ]
 }
diff --git a/adapters/algorix/params_test.go b/adapters/algorix/params_test.go
index 7017a43c730..6b5570c9ad9 100644
--- a/adapters/algorix/params_test.go
+++ b/adapters/algorix/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/alkimi/alkimi.go b/adapters/alkimi/alkimi.go
index 88703073402..4f924bb15e6 100644
--- a/adapters/alkimi/alkimi.go
+++ b/adapters/alkimi/alkimi.go
@@ -8,13 +8,14 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/floors"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/floors"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const price_macro = "${AUCTION_PRICE}"
@@ -69,12 +70,12 @@ func updateImps(bidRequest openrtb2.BidRequest) ([]openrtb2.Imp, []error) {
 		var bidderExt adapters.ExtImpBidder
 		var extImpAlkimi openrtb_ext.ExtImpAlkimi
 
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
 
-		if err := json.Unmarshal(bidderExt.Bidder, &extImpAlkimi); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &extImpAlkimi); err != nil {
 			errs = append(errs, err)
 			continue
 		}
@@ -134,7 +135,7 @@ func (adapter *adapter) MakeBids(request *openrtb2.BidRequest, externalRequest *
 	}
 
 	var bidResp openrtb2.BidResponse
-	err := json.Unmarshal(response.Body, &bidResp)
+	err := jsonutil.Unmarshal(response.Body, &bidResp)
 	if err != nil {
 		return nil, []error{err}
 	}
diff --git a/adapters/alkimi/alkimi_test.go b/adapters/alkimi/alkimi_test.go
index b745f0feb95..65f296a58e6 100644
--- a/adapters/alkimi/alkimi_test.go
+++ b/adapters/alkimi/alkimi_test.go
@@ -3,10 +3,10 @@ package alkimi
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/alkimi/alkimitest/supplemental/bad_response.json b/adapters/alkimi/alkimitest/supplemental/bad_response.json
index 92b8d658968..df66e1eba76 100644
--- a/adapters/alkimi/alkimitest/supplemental/bad_response.json
+++ b/adapters/alkimi/alkimitest/supplemental/bad_response.json
@@ -95,7 +95,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/alkimi/params_test.go b/adapters/alkimi/params_test.go
index 69142af8f33..0ed0be05c61 100644
--- a/adapters/alkimi/params_test.go
+++ b/adapters/alkimi/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/amx/amx.go b/adapters/amx/amx.go
index 5aaa00694c0..38e0f4512e6 100644
--- a/adapters/amx/amx.go
+++ b/adapters/amx/amx.go
@@ -7,10 +7,11 @@ import (
 	"net/url"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const nbrHeaderName = "x-nbr"
@@ -63,7 +64,7 @@ func (adapter *AMXAdapter) MakeRequests(request *openrtb2.BidRequest, req *adapt
 	var publisherID string
 	for idx, imp := range reqCopy.Imp {
 		var params amxExt
-		if err := json.Unmarshal(imp.Ext, &params); err == nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &params); err == nil {
 			if params.Bidder.TagID != "" {
 				publisherID = params.Bidder.TagID
 			}
@@ -141,7 +142,7 @@ func (adapter *AMXAdapter) MakeBids(request *openrtb2.BidRequest, externalReques
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -188,7 +189,7 @@ func getBidExt(ext json.RawMessage) (amxBidExt, error) {
 	}
 
 	var bidExt amxBidExt
-	err := json.Unmarshal(ext, &bidExt)
+	err := jsonutil.Unmarshal(ext, &bidExt)
 	return bidExt, err
 }
 
diff --git a/adapters/amx/amx_test.go b/adapters/amx/amx_test.go
index c03df334359..152fcf2b40d 100644
--- a/adapters/amx/amx_test.go
+++ b/adapters/amx/amx_test.go
@@ -6,12 +6,12 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
 )
 
 const (
diff --git a/adapters/amx/params_test.go b/adapters/amx/params_test.go
index 4d9d646e426..e44f8a7bbf4 100644
--- a/adapters/amx/params_test.go
+++ b/adapters/amx/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/apacdex/apacdex.go b/adapters/apacdex/apacdex.go
index 8eee996c7bd..698c204e25c 100644
--- a/adapters/apacdex/apacdex.go
+++ b/adapters/apacdex/apacdex.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -76,14 +77,14 @@ func preprocess(request *openrtb2.BidRequest) error {
 		var imp = &request.Imp[i]
 		var bidderExt adapters.ExtImpBidder
 
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			return &errortypes.BadInput{
 				Message: err.Error(),
 			}
 		}
 
 		var extImp openrtb_ext.ExtImpApacdex
-		if err := json.Unmarshal(bidderExt.Bidder, &extImp); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &extImp); err != nil {
 			return &errortypes.BadInput{
 				Message: err.Error(),
 			}
@@ -116,7 +117,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 
 	var response openrtb2.BidResponse
 
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
 		}}
@@ -150,7 +151,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 	if bid.Ext != nil {
 		var bidExt openrtb_ext.ExtBid
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil && bidExt.Prebid != nil {
 			return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
 		}
diff --git a/adapters/apacdex/apacdex_test.go b/adapters/apacdex/apacdex_test.go
index ba5f1e7a3e6..4e9e2f4b0ed 100644
--- a/adapters/apacdex/apacdex_test.go
+++ b/adapters/apacdex/apacdex_test.go
@@ -3,9 +3,9 @@ package apacdex
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/apacdex/apacdextest/supplemental/invalid-response-unmarshall-error.json b/adapters/apacdex/apacdextest/supplemental/invalid-response-unmarshall-error.json
index 7c162cbfbad..95c471f2e39 100644
--- a/adapters/apacdex/apacdextest/supplemental/invalid-response-unmarshall-error.json
+++ b/adapters/apacdex/apacdextest/supplemental/invalid-response-unmarshall-error.json
@@ -60,8 +60,8 @@
     ],
     "expectedMakeBidsErrors": [
         {
-            "value": "json: cannot unmarshal string into Go struct field Bid(\\.seatbid\\.bid)?\\.w of type int64",
-            "comparison": "regex"
+            "value": "cannot unmarshal openrtb2.Bid.W: unexpected character",
+            "comparison": "startswith"
         }
     ]
 }
\ No newline at end of file
diff --git a/adapters/apacdex/apacdextest/supplemental/wrong-impression-ext.json b/adapters/apacdex/apacdextest/supplemental/wrong-impression-ext.json
index 09efa59563d..fcb76ddcbf1 100644
--- a/adapters/apacdex/apacdextest/supplemental/wrong-impression-ext.json
+++ b/adapters/apacdex/apacdextest/supplemental/wrong-impression-ext.json
@@ -19,7 +19,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal number into Go struct field ExtImpApacdex.siteId of type string",
+      "value": "cannot unmarshal openrtb_ext.ExtImpApacdex.SiteID: expects \" or n, but found 1",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/apacdex/params_test.go b/adapters/apacdex/params_test.go
index a7dcf7bcb04..ba680ea6818 100644
--- a/adapters/apacdex/params_test.go
+++ b/adapters/apacdex/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/apacdex.json
diff --git a/adapters/appnexus/appnexus.go b/adapters/appnexus/appnexus.go
index f66adaa86eb..eb7b71272cf 100644
--- a/adapters/appnexus/appnexus.go
+++ b/adapters/appnexus/appnexus.go
@@ -13,14 +13,15 @@ import (
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
-	"github.com/prebid/prebid-server/v2/util/randomutil"
-
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/randomutil"
+
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
@@ -171,7 +172,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var appnexusResponse openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &appnexusResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &appnexusResponse); err != nil {
 		return nil, []error{err}
 	}
 
@@ -182,7 +183,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 			bid := sb.Bid[i]
 
 			var bidExt bidExt
-			if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+			if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 				errs = append(errs, err)
 				continue
 			}
@@ -221,7 +222,7 @@ func getRequestExt(ext json.RawMessage) (map[string]json.RawMessage, error) {
 	extMap := make(map[string]json.RawMessage)
 
 	if len(ext) > 0 {
-		if err := json.Unmarshal(ext, &extMap); err != nil {
+		if err := jsonutil.Unmarshal(ext, &extMap); err != nil {
 			return nil, err
 		}
 	}
@@ -233,7 +234,7 @@ func (a *adapter) getAppnexusExt(extMap map[string]json.RawMessage, isAMP int, i
 	var appnexusExt bidReqExtAppnexus
 
 	if appnexusExtJson, exists := extMap["appnexus"]; exists && len(appnexusExtJson) > 0 {
-		if err := json.Unmarshal(appnexusExtJson, &appnexusExt); err != nil {
+		if err := jsonutil.Unmarshal(appnexusExtJson, &appnexusExt); err != nil {
 			return appnexusExt, err
 		}
 	}
@@ -258,7 +259,7 @@ func (a *adapter) getAppnexusExt(extMap map[string]json.RawMessage, isAMP int, i
 
 func validateAndBuildImpExt(imp *openrtb2.Imp) (impExtIncoming, error) {
 	var ext impExtIncoming
-	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
 		return impExtIncoming{}, err
 	}
 
@@ -463,7 +464,7 @@ func moveSupplyChain(request *openrtb2.BidRequest, extMap map[string]json.RawMes
 	}
 
 	sourceExtMap := make(map[string]json.RawMessage)
-	if err := json.Unmarshal(request.Source.Ext, &sourceExtMap); err != nil {
+	if err := jsonutil.Unmarshal(request.Source.Ext, &sourceExtMap); err != nil {
 		return err
 	}
 
diff --git a/adapters/appnexus/appnexus_test.go b/adapters/appnexus/appnexus_test.go
index 72937b25927..c570dfcab91 100644
--- a/adapters/appnexus/appnexus_test.go
+++ b/adapters/appnexus/appnexus_test.go
@@ -4,9 +4,9 @@ import (
 	"net/url"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
diff --git a/adapters/appnexus/params_test.go b/adapters/appnexus/params_test.go
index 12e43f8659b..e828bf57da7 100644
--- a/adapters/appnexus/params_test.go
+++ b/adapters/appnexus/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/appnexus.json
diff --git a/adapters/appush/appush.go b/adapters/appush/appush.go
index df15f716866..c78e0b872c6 100644
--- a/adapters/appush/appush.go
+++ b/adapters/appush/appush.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -44,10 +45,10 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var appushExt openrtb_ext.ImpExtAppush
 
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			return nil, []error{err}
 		}
-		if err = json.Unmarshal(bidderExt.Bidder, &appushExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &appushExt); err != nil {
 			return nil, []error{err}
 		}
 
@@ -111,7 +112,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/appush/appush_test.go b/adapters/appush/appush_test.go
index 92f458f1525..1fe49f87d1c 100644
--- a/adapters/appush/appush_test.go
+++ b/adapters/appush/appush_test.go
@@ -3,9 +3,9 @@ package appush
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/appush/appushtest/supplemental/bad_response.json b/adapters/appush/appushtest/supplemental/bad_response.json
index c732ba92c67..5cc4a338ac3 100644
--- a/adapters/appush/appushtest/supplemental/bad_response.json
+++ b/adapters/appush/appushtest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/appush/params_test.go b/adapters/appush/params_test.go
index 725882cb2ac..b877eb7bfde 100644
--- a/adapters/appush/params_test.go
+++ b/adapters/appush/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/aso/aso.go b/adapters/aso/aso.go
index 3664b49af2e..6df776949a5 100644
--- a/adapters/aso/aso.go
+++ b/adapters/aso/aso.go
@@ -9,11 +9,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -41,7 +42,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 
 	for _, imp := range request.Imp {
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errors = append(errors, &errortypes.BadInput{
 				Message: fmt.Sprintf("invalid imp.ext, %s", err.Error()),
 			})
@@ -49,7 +50,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 		}
 
 		var impExt openrtb_ext.ExtImpAso
-		if err := json.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
 			errors = append(errors, &errortypes.BadInput{
 				Message: fmt.Sprintf("invalid bidderExt.Bidder, %s", err.Error()),
 			})
@@ -96,7 +97,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -132,7 +133,7 @@ func (a *adapter) buildEndpointURL(params *openrtb_ext.ExtImpAso) (string, error
 func getMediaType(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 	if bid.Ext != nil {
 		var bidExt openrtb_ext.ExtBid
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil && bidExt.Prebid != nil {
 			return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
 		}
diff --git a/adapters/aso/aso_test.go b/adapters/aso/aso_test.go
index 603afaff900..41d8e650483 100644
--- a/adapters/aso/aso_test.go
+++ b/adapters/aso/aso_test.go
@@ -1,12 +1,13 @@
 package aso
 
 import (
-	"github.com/stretchr/testify/assert"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/stretchr/testify/assert"
+
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/aso/asotest/supplemental/bad-request-no-bidder.json b/adapters/aso/asotest/supplemental/bad-request-no-bidder.json
index c19a7c62a44..711637104eb 100644
--- a/adapters/aso/asotest/supplemental/bad-request-no-bidder.json
+++ b/adapters/aso/asotest/supplemental/bad-request-no-bidder.json
@@ -18,8 +18,8 @@
   "expectedBidResponses": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "invalid bidderExt.Bidder, unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "invalid bidderExt.Bidder, expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/aso/asotest/supplemental/bad-request-no-ext.json b/adapters/aso/asotest/supplemental/bad-request-no-ext.json
index 9911931d521..1528d1220dd 100644
--- a/adapters/aso/asotest/supplemental/bad-request-no-ext.json
+++ b/adapters/aso/asotest/supplemental/bad-request-no-ext.json
@@ -15,8 +15,8 @@
   "expectedBidResponses": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "invalid imp.ext, unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "invalid imp.ext, expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/aso/asotest/supplemental/unparsable-response.json b/adapters/aso/asotest/supplemental/unparsable-response.json
index c05b1f4c5e8..7fa10a78219 100644
--- a/adapters/aso/asotest/supplemental/unparsable-response.json
+++ b/adapters/aso/asotest/supplemental/unparsable-response.json
@@ -42,7 +42,7 @@
   "expectedBidResponses": [],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal" 
     }
   ]
diff --git a/adapters/aso/params_test.go b/adapters/aso/params_test.go
index caf86acc01b..4d303220d1b 100644
--- a/adapters/aso/params_test.go
+++ b/adapters/aso/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/audienceNetwork/audienceNetworktest/supplemental/invalid-adm.json b/adapters/audienceNetwork/audienceNetworktest/supplemental/invalid-adm.json
index f79c88e3e3c..2aef3f5381c 100644
--- a/adapters/audienceNetwork/audienceNetworktest/supplemental/invalid-adm.json
+++ b/adapters/audienceNetwork/audienceNetworktest/supplemental/invalid-adm.json
@@ -99,7 +99,7 @@
     }],
     "expectedBidResponses": [{"currency":"USD","bids":[]}],
     "expectedMakeBidsErrors": [{
-        "value": "invalid character 'm' looking for beginning of value",
+        "value": "expect { or n, but found m",
         "comparison": "literal"
     }]
 }
diff --git a/adapters/audienceNetwork/facebook.go b/adapters/audienceNetwork/facebook.go
index 807fe337cf2..2a59e3c1699 100644
--- a/adapters/audienceNetwork/facebook.go
+++ b/adapters/audienceNetwork/facebook.go
@@ -13,13 +13,13 @@ import (
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/maputil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/maputil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 var supportedBannerHeights = map[int64]struct{}{
@@ -216,14 +216,14 @@ func modifyImp(out *openrtb2.Imp) error {
 
 func extractPlacementAndPublisher(out *openrtb2.Imp) (string, string, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(out.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(out.Ext, &bidderExt); err != nil {
 		return "", "", &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 
 	var fbExt openrtb_ext.ExtImpFacebook
-	if err := json.Unmarshal(bidderExt.Bidder, &fbExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &fbExt); err != nil {
 		return "", "", &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -274,7 +274,7 @@ func modifyImpCustom(jsonData []byte, imp *openrtb2.Imp) ([]byte, error) {
 	}
 
 	var jsonMap map[string]interface{}
-	if err := json.Unmarshal(jsonData, &jsonMap); err != nil {
+	if err := jsonutil.Unmarshal(jsonData, &jsonMap); err != nil {
 		return jsonData, err
 	}
 
@@ -338,7 +338,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, adapterRequest *adapter
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -357,7 +357,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, adapterRequest *adapter
 			}
 
 			var obj facebookAdMarkup
-			if err := json.Unmarshal([]byte(bid.AdM), &obj); err != nil {
+			if err := jsonutil.Unmarshal([]byte(bid.AdM), &obj); err != nil {
 				errs = append(errs, &errortypes.BadServerResponse{
 					Message: err.Error(),
 				})
diff --git a/adapters/audienceNetwork/facebook_test.go b/adapters/audienceNetwork/facebook_test.go
index e2320c1eaea..6fdc121f948 100644
--- a/adapters/audienceNetwork/facebook_test.go
+++ b/adapters/audienceNetwork/facebook_test.go
@@ -4,10 +4,10 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/automatad/automatad.go b/adapters/automatad/automatad.go
index cbb5d2ef2cc..cfe5f5089b6 100644
--- a/adapters/automatad/automatad.go
+++ b/adapters/automatad/automatad.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -60,7 +61,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/automatad/automatad_test.go b/adapters/automatad/automatad_test.go
index 790b2b42c67..515025c862a 100644
--- a/adapters/automatad/automatad_test.go
+++ b/adapters/automatad/automatad_test.go
@@ -3,9 +3,9 @@ package automatad
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/automatad/params_test.go b/adapters/automatad/params_test.go
index 468624c1eb3..7f8d6e789eb 100644
--- a/adapters/automatad/params_test.go
+++ b/adapters/automatad/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/avocet/avocet.go b/adapters/avocet/avocet.go
index 76ce8195219..8bf2b7d89a1 100644
--- a/adapters/avocet/avocet.go
+++ b/adapters/avocet/avocet.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // AvocetAdapter implements a adapters.Bidder compatible with the Avocet advertising platform.
@@ -71,7 +72,7 @@ func (a *AvocetAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 	}
 
 	var br openrtb2.BidResponse
-	err := json.Unmarshal(response.Body, &br)
+	err := jsonutil.Unmarshal(response.Body, &br)
 	if err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
@@ -84,7 +85,7 @@ func (a *AvocetAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 		for j := range br.SeatBid[i].Bid {
 			var ext avocetBidExt
 			if len(br.SeatBid[i].Bid[j].Ext) > 0 {
-				err := json.Unmarshal(br.SeatBid[i].Bid[j].Ext, &ext)
+				err := jsonutil.Unmarshal(br.SeatBid[i].Bid[j].Ext, &ext)
 				if err != nil {
 					errs = append(errs, err)
 					continue
diff --git a/adapters/avocet/avocet_test.go b/adapters/avocet/avocet_test.go
index d7356e2cb80..082a7c1ee65 100644
--- a/adapters/avocet/avocet_test.go
+++ b/adapters/avocet/avocet_test.go
@@ -8,11 +8,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/axis/axis.go b/adapters/axis/axis.go
index 4d15e19a4ea..d28eca6a8ad 100644
--- a/adapters/axis/axis.go
+++ b/adapters/axis/axis.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -38,7 +39,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		request.Imp = []openrtb2.Imp{currImp}
 
 		var bidderExt reqBodyExt
-		if err := json.Unmarshal(currImp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(currImp.Ext, &bidderExt); err != nil {
 			continue
 		}
 
@@ -94,7 +95,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/axis/axis_test.go b/adapters/axis/axis_test.go
index 451141d8458..24048f1856b 100644
--- a/adapters/axis/axis_test.go
+++ b/adapters/axis/axis_test.go
@@ -3,9 +3,9 @@ package axis
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/axis/axistest/supplemental/bad_response.json b/adapters/axis/axistest/supplemental/bad_response.json
index fa1b7579f25..bb2d515ec0e 100644
--- a/adapters/axis/axistest/supplemental/bad_response.json
+++ b/adapters/axis/axistest/supplemental/bad_response.json
@@ -79,7 +79,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/axis/params_test.go b/adapters/axis/params_test.go
index 1c0391d6954..ad5cec52fd2 100644
--- a/adapters/axis/params_test.go
+++ b/adapters/axis/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/axonix/axonix.go b/adapters/axonix/axonix.go
index b57e44057d7..81e5937a146 100644
--- a/adapters/axonix/axonix.go
+++ b/adapters/axonix/axonix.go
@@ -10,11 +10,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -43,7 +44,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 	var errors []error
 
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
 		errors = append(errors, &errortypes.BadInput{
 			Message: err.Error(),
 		})
@@ -52,7 +53,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 	}
 
 	var axonixExt openrtb_ext.ExtImpAxonix
-	if err := json.Unmarshal(bidderExt.Bidder, &axonixExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &axonixExt); err != nil {
 		errors = append(errors, &errortypes.BadInput{
 			Message: err.Error(),
 		})
@@ -99,7 +100,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/axonix/axonix_test.go b/adapters/axonix/axonix_test.go
index 9634a54fe65..1d398c53516 100644
--- a/adapters/axonix/axonix_test.go
+++ b/adapters/axonix/axonix_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/axonix/axonixtest/supplemental/bad-response-no-body.json b/adapters/axonix/axonixtest/supplemental/bad-response-no-body.json
index 8fafaa38fed..18f2915f270 100644
--- a/adapters/axonix/axonixtest/supplemental/bad-response-no-body.json
+++ b/adapters/axonix/axonixtest/supplemental/bad-response-no-body.json
@@ -51,8 +51,8 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/axonix/params_test.go b/adapters/axonix/params_test.go
index 59b62220746..b839bcb20f5 100644
--- a/adapters/axonix/params_test.go
+++ b/adapters/axonix/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/axonix.json
diff --git a/adapters/beachfront/beachfront.go b/adapters/beachfront/beachfront.go
index 154a14286cd..8e293837f16 100644
--- a/adapters/beachfront/beachfront.go
+++ b/adapters/beachfront/beachfront.go
@@ -10,11 +10,12 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 const Seat = "beachfront"
@@ -273,7 +274,7 @@ func getAppId(ext openrtb_ext.ExtImpBeachfront, media openrtb_ext.BidType) (stri
 
 func getSchain(request *openrtb2.BidRequest) (openrtb_ext.ExtRequestPrebidSChain, error) {
 	var schain openrtb_ext.ExtRequestPrebidSChain
-	return schain, json.Unmarshal(request.Source.Ext, &schain)
+	return schain, jsonutil.Unmarshal(request.Source.Ext, &schain)
 }
 
 func getBannerRequest(request *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo) (beachfrontBannerRequest, []error) {
@@ -540,7 +541,7 @@ func (a *BeachfrontAdapter) MakeBids(internalRequest *openrtb2.BidRequest, exter
 	var errs = make([]error, 0)
 	var xtrnal openrtb2.BidRequest
 
-	if err := json.Unmarshal(externalRequest.Body, &xtrnal); err != nil {
+	if err := jsonutil.Unmarshal(externalRequest.Body, &xtrnal); err != nil {
 		errs = append(errs, err)
 	} else {
 		bids, errs = postprocess(response, xtrnal, externalRequest.Uri, internalRequest.ID)
@@ -555,7 +556,7 @@ func (a *BeachfrontAdapter) MakeBids(internalRequest *openrtb2.BidRequest, exter
 
 	for i := 0; i < len(bids); i++ {
 
-		if err := json.Unmarshal(bids[i].Ext, &dur); err == nil && dur.Duration > 0 {
+		if err := jsonutil.Unmarshal(bids[i].Ext, &dur); err == nil && dur.Duration > 0 {
 
 			impVideo := openrtb_ext.ExtBidPrebidVideo{
 				Duration: int(dur.Duration),
@@ -642,9 +643,9 @@ func postprocess(response *adapters.ResponseData, xtrnal openrtb2.BidRequest, ur
 
 	var openrtbResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &openrtbResp); err != nil || len(openrtbResp.SeatBid) == 0 {
+	if err := jsonutil.Unmarshal(response.Body, &openrtbResp); err != nil || len(openrtbResp.SeatBid) == 0 {
 
-		if err := json.Unmarshal(response.Body, &beachfrontResp); err != nil {
+		if err := jsonutil.Unmarshal(response.Body, &beachfrontResp); err != nil {
 			return nil, []error{&errortypes.BadServerResponse{
 				Message: "server response failed to unmarshal as valid rtb. Run with request.debug = 1 for more info",
 			}}
@@ -715,13 +716,13 @@ func getBeachfrontExtension(imp openrtb2.Imp) (openrtb_ext.ExtImpBeachfront, err
 	var bidderExt adapters.ExtImpBidder
 	var beachfrontExt openrtb_ext.ExtImpBeachfront
 
-	if err = json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err = jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return beachfrontExt, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, error while decoding extImpBidder, err: %s", imp.ID, err),
 		}
 	}
 
-	if err = json.Unmarshal(bidderExt.Bidder, &beachfrontExt); err != nil {
+	if err = jsonutil.Unmarshal(bidderExt.Bidder, &beachfrontExt); err != nil {
 		return beachfrontExt, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, error while decoding extImpBeachfront, err: %s", imp.ID, err),
 		}
@@ -783,7 +784,7 @@ func getExtraInfo(v string) (ExtraInfo, error) {
 	}
 
 	var extraInfo ExtraInfo
-	if err := json.Unmarshal([]byte(v), &extraInfo); err != nil {
+	if err := jsonutil.Unmarshal([]byte(v), &extraInfo); err != nil {
 		return extraInfo, fmt.Errorf("invalid extra info: %v", err)
 	}
 
diff --git a/adapters/beachfront/beachfront_test.go b/adapters/beachfront/beachfront_test.go
index 23c4dcf6a9e..304747503fb 100644
--- a/adapters/beachfront/beachfront_test.go
+++ b/adapters/beachfront/beachfront_test.go
@@ -3,9 +3,9 @@ package beachfront
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/beachfront/beachfronttest/supplemental/unmarshal-error-banner.json b/adapters/beachfront/beachfronttest/supplemental/unmarshal-error-banner.json
index 8d07852b1f1..31f313bde64 100644
--- a/adapters/beachfront/beachfronttest/supplemental/unmarshal-error-banner.json
+++ b/adapters/beachfront/beachfronttest/supplemental/unmarshal-error-banner.json
@@ -28,7 +28,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "ignoring imp id=fail, error while decoding extImpBeachfront, err: json: cannot unmarshal number into Go struct field ExtImpBeachfront.appId of type string",
+      "value": "ignoring imp id=fail, error while decoding extImpBeachfront, err: cannot unmarshal openrtb_ext.ExtImpBeachfront.AppId: expects \" or n, but found 1",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/beachfront/beachfronttest/supplemental/unmarshal-error-video.json b/adapters/beachfront/beachfronttest/supplemental/unmarshal-error-video.json
index 73ac2032c16..e075697cfb4 100644
--- a/adapters/beachfront/beachfronttest/supplemental/unmarshal-error-video.json
+++ b/adapters/beachfront/beachfronttest/supplemental/unmarshal-error-video.json
@@ -34,7 +34,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "ignoring imp id=looser, error while decoding extImpBeachfront, err: json: cannot unmarshal string into Go struct field ExtImpBeachfront.bidfloor of type float64",
+      "value": "ignoring imp id=looser, error while decoding extImpBeachfront, err: cannot unmarshal openrtb_ext.ExtImpBeachfront.BidFloor: invalid number",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/beachfront/params_test.go b/adapters/beachfront/params_test.go
index 23e9ae7f492..3bfbeba6351 100644
--- a/adapters/beachfront/params_test.go
+++ b/adapters/beachfront/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/beintoo/beintoo.go b/adapters/beintoo/beintoo.go
index 500e0e4a9df..18290e6df44 100644
--- a/adapters/beintoo/beintoo.go
+++ b/adapters/beintoo/beintoo.go
@@ -8,10 +8,11 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type BeintooAdapter struct {
@@ -67,14 +68,14 @@ func (a *BeintooAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *ada
 
 func unpackImpExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpBeintoo, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 
 	var beintooExt openrtb_ext.ExtImpBeintoo
-	if err := json.Unmarshal(bidderExt.Bidder, &beintooExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &beintooExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, invalid ImpExt", imp.ID),
 		}
@@ -192,7 +193,7 @@ func (a *BeintooAdapter) MakeBids(internalRequest *openrtb2.BidRequest, external
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Unable to unpackage bid response. Error: %s", err.Error()),
 		}}
diff --git a/adapters/beintoo/beintoo_test.go b/adapters/beintoo/beintoo_test.go
index 11ef7ec9e7b..8dfb257b3d4 100644
--- a/adapters/beintoo/beintoo_test.go
+++ b/adapters/beintoo/beintoo_test.go
@@ -3,9 +3,9 @@ package beintoo
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/beintoo/beintootest/supplemental/invalid-response-unmarshall-error.json b/adapters/beintoo/beintootest/supplemental/invalid-response-unmarshall-error.json
index eb8840d3404..01cc697dbd6 100644
--- a/adapters/beintoo/beintootest/supplemental/invalid-response-unmarshall-error.json
+++ b/adapters/beintoo/beintootest/supplemental/invalid-response-unmarshall-error.json
@@ -57,8 +57,8 @@
 
     "expectedMakeBidsErrors": [
         {
-            "value": "Unable to unpackage bid response\\. Error: json: cannot unmarshal string into Go struct field (Bid\\.seatbid\\.bid\\.w|Bid\\.w) of type int64",
-            "comparison": "regex"
+            "value": "Unable to unpackage bid response. Error: cannot unmarshal openrtb2.Bid.W: unexpected character",
+            "comparison": "startswith"
         }
     ]
 }
diff --git a/adapters/beintoo/params_test.go b/adapters/beintoo/params_test.go
index 0392e08bb9b..211912a8cbd 100644
--- a/adapters/beintoo/params_test.go
+++ b/adapters/beintoo/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/bematterfull/bematterfull.go b/adapters/bematterfull/bematterfull.go
index 337bbc1b60c..89b984c5eb1 100644
--- a/adapters/bematterfull/bematterfull.go
+++ b/adapters/bematterfull/bematterfull.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type bidType struct {
@@ -41,14 +42,14 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 
 func (a *adapter) buildEndpointFromRequest(imp *openrtb2.Imp) (string, error) {
 	var impExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize bidder impression extension: %v", err),
 		}
 	}
 
 	var bematterfullExt openrtb_ext.ExtBematterfull
-	if err := json.Unmarshal(impExt.Bidder, &bematterfullExt); err != nil {
+	if err := jsonutil.Unmarshal(impExt.Bidder, &bematterfullExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize Bematterfull extension: %v", err),
 		}
@@ -116,7 +117,7 @@ func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -136,7 +137,7 @@ func prepareBidResponse(seats []openrtb2.SeatBid) (*adapters.BidderResponse, []e
 	for _, seatBid := range seats {
 		for bidId, bid := range seatBid.Bid {
 			var bidExt bidExt
-			if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+			if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 				errs = append(errs, &errortypes.BadServerResponse{
 					Message: fmt.Sprintf("Failed to parse Bid[%d].Ext: %s", bidId, err.Error()),
 				})
diff --git a/adapters/bematterfull/bematterfulltest/supplemental/bad-response.json b/adapters/bematterfull/bematterfulltest/supplemental/bad-response.json
index 942c73e7d30..1ef0d08931b 100644
--- a/adapters/bematterfull/bematterfulltest/supplemental/bad-response.json
+++ b/adapters/bematterfull/bematterfulltest/supplemental/bad-response.json
@@ -99,7 +99,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/bematterfull/bematterfulltest/supplemental/invalid-ext-bidder-object.json b/adapters/bematterfull/bematterfulltest/supplemental/invalid-ext-bidder-object.json
index 67778fd4b8e..1b4ed00392a 100644
--- a/adapters/bematterfull/bematterfulltest/supplemental/invalid-ext-bidder-object.json
+++ b/adapters/bematterfull/bematterfulltest/supplemental/invalid-ext-bidder-object.json
@@ -42,7 +42,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize Bematterfull extension: json: cannot unmarshal array into Go value of type openrtb_ext.ExtBematterfull",
+      "value": "Failed to deserialize Bematterfull extension: expect { or n, but found [",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/bematterfull/bematterfulltest/supplemental/invalid-ext-object.json b/adapters/bematterfull/bematterfulltest/supplemental/invalid-ext-object.json
index aa215eb3e34..16cf58bbe54 100644
--- a/adapters/bematterfull/bematterfulltest/supplemental/invalid-ext-object.json
+++ b/adapters/bematterfull/bematterfulltest/supplemental/invalid-ext-object.json
@@ -40,7 +40,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize bidder impression extension: json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "Failed to deserialize bidder impression extension: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/bematterfull/bematterfulltest_test.go b/adapters/bematterfull/bematterfulltest_test.go
index 36198bc4f2a..92296231b05 100644
--- a/adapters/bematterfull/bematterfulltest_test.go
+++ b/adapters/bematterfull/bematterfulltest_test.go
@@ -3,9 +3,9 @@ package bematterfull
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/bematterfull/params_test.go b/adapters/bematterfull/params_test.go
index a093edbe6ac..769195f6f0f 100644
--- a/adapters/bematterfull/params_test.go
+++ b/adapters/bematterfull/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/between/between.go b/adapters/between/between.go
index a639c219561..fe20978285b 100644
--- a/adapters/between/between.go
+++ b/adapters/between/between.go
@@ -9,11 +9,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type BetweenAdapter struct {
@@ -69,14 +70,14 @@ func (a *BetweenAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *ada
 
 func unpackImpExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpBetween, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, invalid BidderExt", imp.ID),
 		}
 	}
 
 	var betweenExt openrtb_ext.ExtImpBetween
-	if err := json.Unmarshal(bidderExt.Bidder, &betweenExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &betweenExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, invalid ImpExt", imp.ID),
 		}
@@ -183,7 +184,7 @@ func (a *BetweenAdapter) MakeBids(internalRequest *openrtb2.BidRequest, external
 		}}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Unable to unpackage bid response. Error %s", err.Error()),
 		}}
diff --git a/adapters/between/between_test.go b/adapters/between/between_test.go
index 332ba00b5d0..61f759126be 100644
--- a/adapters/between/between_test.go
+++ b/adapters/between/between_test.go
@@ -3,9 +3,9 @@ package between
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/between/betweentest/supplemental/bad-response-body.json b/adapters/between/betweentest/supplemental/bad-response-body.json
index 2998f11a2f9..b35d6cec165 100644
--- a/adapters/between/betweentest/supplemental/bad-response-body.json
+++ b/adapters/between/betweentest/supplemental/bad-response-body.json
@@ -70,7 +70,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "Unable to unpackage bid response. Error json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "Unable to unpackage bid response. Error expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/between/params_test.go b/adapters/between/params_test.go
index 5772c218bc0..5e30dba116d 100644
--- a/adapters/between/params_test.go
+++ b/adapters/between/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/between.json
diff --git a/adapters/beyondmedia/beyondmedia.go b/adapters/beyondmedia/beyondmedia.go
index bc1e8ea4b69..bafa5791d86 100644
--- a/adapters/beyondmedia/beyondmedia.go
+++ b/adapters/beyondmedia/beyondmedia.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -43,10 +44,10 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var beyondMediaExt openrtb_ext.ImpExtBeyondMedia
 
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			return nil, []error{err}
 		}
-		if err = json.Unmarshal(bidderExt.Bidder, &beyondMediaExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &beyondMediaExt); err != nil {
 			return nil, []error{err}
 		}
 
@@ -104,7 +105,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/beyondmedia/beyondmedia_test.go b/adapters/beyondmedia/beyondmedia_test.go
index 1f828e50b3a..94eb5bd741a 100644
--- a/adapters/beyondmedia/beyondmedia_test.go
+++ b/adapters/beyondmedia/beyondmedia_test.go
@@ -3,9 +3,9 @@ package beyondmedia
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/beyondmedia/beyondmediatest/supplemental/bad_response.json b/adapters/beyondmedia/beyondmediatest/supplemental/bad_response.json
index 906fe1cadaf..65d1a117c98 100644
--- a/adapters/beyondmedia/beyondmediatest/supplemental/bad_response.json
+++ b/adapters/beyondmedia/beyondmediatest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/beyondmedia/params_test.go b/adapters/beyondmedia/params_test.go
index 8796b200ede..2f6d969f1ab 100644
--- a/adapters/beyondmedia/params_test.go
+++ b/adapters/beyondmedia/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/bidder.go b/adapters/bidder.go
index 47c71d78df6..0818120b783 100644
--- a/adapters/bidder.go
+++ b/adapters/bidder.go
@@ -6,10 +6,10 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // Bidder describes how to connect to external demand.
diff --git a/adapters/bidmachine/bidmachine.go b/adapters/bidmachine/bidmachine.go
index 3ff85b1dd79..81a72cdac5b 100644
--- a/adapters/bidmachine/bidmachine.go
+++ b/adapters/bidmachine/bidmachine.go
@@ -12,11 +12,12 @@ import (
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -54,14 +55,14 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, _ *adapters.ExtraRe
 		}
 
 		var bidderExt adapters.ExtImpBidder
-		err := json.Unmarshal(impression.Ext, &bidderExt)
+		err := jsonutil.Unmarshal(impression.Ext, &bidderExt)
 		if err != nil {
 			errs = append(errs, err)
 			continue
 		}
 
 		var impressionExt openrtb_ext.ExtImpBidmachine
-		err = json.Unmarshal(bidderExt.Bidder, &impressionExt)
+		err = jsonutil.Unmarshal(bidderExt.Bidder, &impressionExt)
 		if err != nil {
 			errs = append(errs, err)
 			continue
@@ -137,7 +138,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var bidResponse openrtb2.BidResponse
-	err := json.Unmarshal(responseData.Body, &bidResponse)
+	err := jsonutil.Unmarshal(responseData.Body, &bidResponse)
 	if err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
diff --git a/adapters/bidmachine/bidmachine_test.go b/adapters/bidmachine/bidmachine_test.go
index 282241c3d72..dc26633c4fc 100644
--- a/adapters/bidmachine/bidmachine_test.go
+++ b/adapters/bidmachine/bidmachine_test.go
@@ -3,9 +3,9 @@ package bidmachine
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/bidmachine/params_test.go b/adapters/bidmachine/params_test.go
index d396ee09cd3..319fef89029 100644
--- a/adapters/bidmachine/params_test.go
+++ b/adapters/bidmachine/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/bidmatic/bidmatic.go b/adapters/bidmatic/bidmatic.go
index 950107ea0e0..32b7a2ee886 100644
--- a/adapters/bidmatic/bidmatic.go
+++ b/adapters/bidmatic/bidmatic.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -90,7 +91,7 @@ func (a *adapter) MakeBids(bidReq *openrtb2.BidRequest, unused *adapters.Request
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(httpRes.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(httpRes.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("error while decoding response, err: %s", err),
 		}}
@@ -161,14 +162,14 @@ func validateImpression(imp *openrtb2.Imp) (int, error) {
 
 	var bidderExt adapters.ExtImpBidder
 
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return 0, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, error while decoding extImpBidder, err: %s", imp.ID, err),
 		}
 	}
 
 	impExt := openrtb_ext.ExtImpBidmatic{}
-	err := json.Unmarshal(bidderExt.Bidder, &impExt)
+	err := jsonutil.Unmarshal(bidderExt.Bidder, &impExt)
 	if err != nil {
 		return 0, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, error while decoding impExt, err: %s", imp.ID, err),
@@ -193,7 +194,7 @@ func validateImpression(imp *openrtb2.Imp) (int, error) {
 
 	imp.Ext = impExtBuffer
 
-	source, err := impExt.SourceId.Int64() // json.Unmarshal returns err if it isn't valid
+	source, err := impExt.SourceId.Int64() // jsonutil.Unmarshal returns err if it isn't valid
 	if err != nil {
 		return 0, err
 	}
diff --git a/adapters/bidmatic/bidmatic_test.go b/adapters/bidmatic/bidmatic_test.go
index c6a31823223..b546eca545e 100644
--- a/adapters/bidmatic/bidmatic_test.go
+++ b/adapters/bidmatic/bidmatic_test.go
@@ -3,9 +3,9 @@ package bidmatic
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/bidmatic/bidmatictest/supplemental/wrong-impression-ext.json b/adapters/bidmatic/bidmatictest/supplemental/wrong-impression-ext.json
index 8154afed75f..c471560932c 100644
--- a/adapters/bidmatic/bidmatictest/supplemental/wrong-impression-ext.json
+++ b/adapters/bidmatic/bidmatictest/supplemental/wrong-impression-ext.json
@@ -19,7 +19,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "ignoring imp id=unsupported-native-imp, error while decoding impExt, err: json: invalid number literal, trying to unmarshal \"\\\"some string instead of int\\\"\" into Number",
+      "value": "ignoring imp id=unsupported-native-imp, error while marshaling impExt, err: json: invalid number literal \"some string instead of int\"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/bidmatic/bidmatictest/supplemental/wrong-response.json b/adapters/bidmatic/bidmatictest/supplemental/wrong-response.json
index ad09b32cd1a..5daadf6e1e1 100644
--- a/adapters/bidmatic/bidmatictest/supplemental/wrong-response.json
+++ b/adapters/bidmatic/bidmatictest/supplemental/wrong-response.json
@@ -58,8 +58,8 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "error while decoding response, err: unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "error while decoding response, err: expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/bidmatic/params_test.go b/adapters/bidmatic/params_test.go
index 6bdc5f4339d..bfea9fddaef 100644
--- a/adapters/bidmatic/params_test.go
+++ b/adapters/bidmatic/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/bidmatic.json
diff --git a/adapters/bidmyadz/bidmyadz.go b/adapters/bidmyadz/bidmyadz.go
index 8b9b4cc841b..b2f8cda564a 100644
--- a/adapters/bidmyadz/bidmyadz.go
+++ b/adapters/bidmyadz/bidmyadz.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -111,7 +112,7 @@ func (a *adapter) MakeBids(
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -136,7 +137,7 @@ func (a *adapter) MakeBids(
 	var bidExt bidExt
 	var bidType openrtb_ext.BidType
 
-	if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+	if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("BidExt parsing error. %s", err.Error()),
 		}}
diff --git a/adapters/bidmyadz/bidmyadz_test.go b/adapters/bidmyadz/bidmyadz_test.go
index 41badb559af..f01af44cffb 100644
--- a/adapters/bidmyadz/bidmyadz_test.go
+++ b/adapters/bidmyadz/bidmyadz_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/bidmyadz/bidmyadztest/supplemental/missing-mediatype.json b/adapters/bidmyadz/bidmyadztest/supplemental/missing-mediatype.json
index f787bd20cbc..923576a9ba5 100644
--- a/adapters/bidmyadz/bidmyadztest/supplemental/missing-mediatype.json
+++ b/adapters/bidmyadz/bidmyadztest/supplemental/missing-mediatype.json
@@ -116,8 +116,8 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "BidExt parsing error. unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "BidExt parsing error. expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
\ No newline at end of file
diff --git a/adapters/bidmyadz/params_test.go b/adapters/bidmyadz/params_test.go
index 262dcf0880d..fca34b10245 100644
--- a/adapters/bidmyadz/params_test.go
+++ b/adapters/bidmyadz/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/bidscube/bidscube.go b/adapters/bidscube/bidscube.go
index c16d01b5a33..8ccd794f869 100644
--- a/adapters/bidscube/bidscube.go
+++ b/adapters/bidscube/bidscube.go
@@ -9,10 +9,11 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -29,7 +30,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, _ *adapters.ExtraRe
 
 	for _, impression := range impressions {
 		var impExt map[string]json.RawMessage
-		if err := json.Unmarshal(impression.Ext, &impExt); err != nil {
+		if err := jsonutil.Unmarshal(impression.Ext, &impExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
@@ -79,7 +80,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var bidResponse openrtb2.BidResponse
-	err := json.Unmarshal(responseData.Body, &bidResponse)
+	err := jsonutil.Unmarshal(responseData.Body, &bidResponse)
 	if err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
diff --git a/adapters/bidscube/bidscube_test.go b/adapters/bidscube/bidscube_test.go
index e64ccdbef63..5396ccd4261 100644
--- a/adapters/bidscube/bidscube_test.go
+++ b/adapters/bidscube/bidscube_test.go
@@ -3,9 +3,9 @@ package bidscube
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/bidscube/bidscubetest/supplemental/bad_response.json b/adapters/bidscube/bidscubetest/supplemental/bad_response.json
index a6087b506a4..2eaaba4d21a 100644
--- a/adapters/bidscube/bidscubetest/supplemental/bad_response.json
+++ b/adapters/bidscube/bidscubetest/supplemental/bad_response.json
@@ -77,7 +77,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/bidscube/bidscubetest/supplemental/imp_ext_string.json b/adapters/bidscube/bidscubetest/supplemental/imp_ext_string.json
index ad6c2ede6e8..935764f46d9 100644
--- a/adapters/bidscube/bidscubetest/supplemental/imp_ext_string.json
+++ b/adapters/bidscube/bidscubetest/supplemental/imp_ext_string.json
@@ -30,7 +30,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type map[string]json.RawMessage",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/bidscube/params_test.go b/adapters/bidscube/params_test.go
index 9337c4dfb40..9f368f939a2 100644
--- a/adapters/bidscube/params_test.go
+++ b/adapters/bidscube/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // TestValidParams makes sure that the bidscube schema accepts all imp.ext fields which we intend to support.
diff --git a/adapters/bidstack/bidstack.go b/adapters/bidstack/bidstack.go
index c4396153211..555abff0c72 100644
--- a/adapters/bidstack/bidstack.go
+++ b/adapters/bidstack/bidstack.go
@@ -9,9 +9,10 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
@@ -84,7 +85,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{fmt.Errorf("bid response unmarshal: %v", err)}
 	}
 
@@ -117,10 +118,10 @@ func prepareHeaders(request *openrtb2.BidRequest) (headers http.Header, err erro
 
 func getBidderExt(imp openrtb2.Imp) (bidderImpExt openrtb_ext.ImpExtBidstack, err error) {
 	var impExt adapters.ExtImpBidder
-	if err = json.Unmarshal(imp.Ext, &impExt); err != nil {
+	if err = jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 		return bidderImpExt, fmt.Errorf("imp ext: %v", err)
 	}
-	if err = json.Unmarshal(impExt.Bidder, &bidderImpExt); err != nil {
+	if err = jsonutil.Unmarshal(impExt.Bidder, &bidderImpExt); err != nil {
 		return bidderImpExt, fmt.Errorf("bidder ext: %v", err)
 	}
 	return bidderImpExt, nil
diff --git a/adapters/bidstack/bidstack_test.go b/adapters/bidstack/bidstack_test.go
index 3c160583729..9010ce5014b 100644
--- a/adapters/bidstack/bidstack_test.go
+++ b/adapters/bidstack/bidstack_test.go
@@ -7,9 +7,9 @@ import (
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/bidstack/params_test.go b/adapters/bidstack/params_test.go
index d7dc18e4a03..3cca0f447b1 100644
--- a/adapters/bidstack/params_test.go
+++ b/adapters/bidstack/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/bigoad/bigoad.go b/adapters/bigoad/bigoad.go
index 82a34de0bdb..e968139d599 100644
--- a/adapters/bigoad/bigoad.go
+++ b/adapters/bigoad/bigoad.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -78,13 +79,13 @@ func addNonEmptyHeaders(headers *http.Header, headerValues map[string]string) {
 
 func getImpExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpBigoAd, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("imp %s: unable to unmarshal ext", imp.ID),
 		}
 	}
 	var bigoadExt openrtb_ext.ExtImpBigoAd
-	if err := json.Unmarshal(bidderExt.Bidder, &bigoadExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &bigoadExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("imp %s: unable to unmarshal ext.bidder: %v", imp.ID, err),
 		}
@@ -108,7 +109,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var bidResponse openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &bidResponse); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &bidResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Bad server response: %d", err),
 		}}
diff --git a/adapters/bigoad/bigoad_test.go b/adapters/bigoad/bigoad_test.go
index 39ca37dbf56..7c51c8f80d5 100644
--- a/adapters/bigoad/bigoad_test.go
+++ b/adapters/bigoad/bigoad_test.go
@@ -3,9 +3,9 @@ package bigoad
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/bigoad/param_test.go b/adapters/bigoad/param_test.go
index fdf4718cd1d..772bcb77214 100644
--- a/adapters/bigoad/param_test.go
+++ b/adapters/bigoad/param_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/blasto/blasto.go b/adapters/blasto/blasto.go
index 628ba0e9cf4..e9917d08859 100644
--- a/adapters/blasto/blasto.go
+++ b/adapters/blasto/blasto.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -89,13 +90,13 @@ func (a *adapter) MakeRequests(
 
 func (a *adapter) getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtBlasto, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
 	}
 	var blastoExt openrtb_ext.ExtBlasto
-	if err := json.Unmarshal(bidderExt.Bidder, &blastoExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &blastoExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
@@ -151,7 +152,7 @@ func (a *adapter) MakeBids(
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/blasto/blasto_test.go b/adapters/blasto/blasto_test.go
index f63cc58871c..9b09c19ae6a 100644
--- a/adapters/blasto/blasto_test.go
+++ b/adapters/blasto/blasto_test.go
@@ -3,9 +3,9 @@ package blasto
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/blasto/params_test.go b/adapters/blasto/params_test.go
index a3c572ac3f8..c23f162d036 100644
--- a/adapters/blasto/params_test.go
+++ b/adapters/blasto/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/bliink/bliink.go b/adapters/bliink/bliink.go
index 51463698597..900c1de7ee2 100644
--- a/adapters/bliink/bliink.go
+++ b/adapters/bliink/bliink.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -68,7 +69,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/bliink/bliink_test.go b/adapters/bliink/bliink_test.go
index 02cafb37a4b..d5fa3aa58e5 100644
--- a/adapters/bliink/bliink_test.go
+++ b/adapters/bliink/bliink_test.go
@@ -3,9 +3,9 @@ package bliink
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/bliink/params_test.go b/adapters/bliink/params_test.go
index d1066e8c4ed..646ab96e4ce 100644
--- a/adapters/bliink/params_test.go
+++ b/adapters/bliink/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/blue/blue.go b/adapters/blue/blue.go
index 127adf136c3..08b5167dd03 100644
--- a/adapters/blue/blue.go
+++ b/adapters/blue/blue.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -66,7 +67,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/blue/blue_test.go b/adapters/blue/blue_test.go
index 695984a3383..696d855d6a1 100644
--- a/adapters/blue/blue_test.go
+++ b/adapters/blue/blue_test.go
@@ -3,9 +3,9 @@ package blue
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestBidderBlue(t *testing.T) {
diff --git a/adapters/blue/bluetest/supplemental/bad_response.json b/adapters/blue/bluetest/supplemental/bad_response.json
index c45d6b84517..c239a50f972 100644
--- a/adapters/blue/bluetest/supplemental/bad_response.json
+++ b/adapters/blue/bluetest/supplemental/bad_response.json
@@ -51,7 +51,7 @@
     ],
     "expectedMakeBidsErrors": [
         {
-            "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+            "value": "expect { or n, but found \"",
             "comparison": "literal"
         }
     ]
diff --git a/adapters/bluesea/bluesea.go b/adapters/bluesea/bluesea.go
index 2e8d50b6e08..0428b22b6c0 100644
--- a/adapters/bluesea/bluesea.go
+++ b/adapters/bluesea/bluesea.go
@@ -7,10 +7,11 @@ import (
 	"net/url"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -82,14 +83,14 @@ func extraImpExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpBluesea, error) {
 	var impExt adapters.ExtImpBidder
 	var blueseaImpExt openrtb_ext.ExtImpBluesea
 
-	err := json.Unmarshal(imp.Ext, &impExt)
+	err := jsonutil.Unmarshal(imp.Ext, &impExt)
 	if err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Error in parsing imp.ext. err = %v, imp.ext = %v", err.Error(), string(imp.Ext)),
 		}
 	}
 
-	err = json.Unmarshal(impExt.Bidder, &blueseaImpExt)
+	err = jsonutil.Unmarshal(impExt.Bidder, &blueseaImpExt)
 	if err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Error in parsing imp.ext.bidder. err = %v, bidder = %v", err.Error(), string(impExt.Bidder)),
@@ -114,7 +115,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var blueseaResponse openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &blueseaResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &blueseaResponse); err != nil {
 		return nil, []error{fmt.Errorf("Error in parsing bidresponse body")}
 	}
 
@@ -145,7 +146,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 func getMediaTypeForBid(bid *openrtb2.Bid) (openrtb_ext.BidType, error) {
 
 	var bidExt blueseaBidExt
-	if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+	if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 		return "", fmt.Errorf("Error in parsing bid.ext")
 	}
 
diff --git a/adapters/bluesea/bluesea_test.go b/adapters/bluesea/bluesea_test.go
index 8bfe42ce150..2d0b5bdaca5 100644
--- a/adapters/bluesea/bluesea_test.go
+++ b/adapters/bluesea/bluesea_test.go
@@ -3,9 +3,9 @@ package bluesea
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/bluesea/blueseatest/exemplary/site-banner.json b/adapters/bluesea/blueseatest/exemplary/site-banner.json
new file mode 100644
index 00000000000..b3ca13f8d53
--- /dev/null
+++ b/adapters/bluesea/blueseatest/exemplary/site-banner.json
@@ -0,0 +1,133 @@
+{
+    "mockBidRequest":{
+        "id":"b655d86c-fdf6-4e68-a1e9-abc223f84a65",
+        "site":{
+            "id": "100",
+            "domain": "test.domain",
+            "page": "https://test.domain?target=_blank",
+            "keywords": "fashion"
+        },
+        "imp":[
+            {
+                "id":"1",
+                "banner":{
+                    "w":300,
+                    "h":250
+                },
+                "secure":1,
+                "ext":{
+                    "bidder":{
+                        "pubid":"test-pubid",
+                        "token":"test-pub-token"
+                    }
+                }
+            }
+        ],
+        "device":{
+            "os":"android",
+            "ua":"Mozilla/5.0 (Linux; Android 8.0.0; SC-04J Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.162 Mobile Safari/537.36",
+            "ip":"101.101.101.101",
+            "h":1280,
+            "w":720
+        },
+        "at":1,
+        "tmax":1200,
+        "test":1
+    },
+    "httpCalls":[
+        {
+            "expectedRequest":{
+                "uri":"https://test.prebid.bluesea?pubid=test-pubid&token=test-pub-token",
+                "body":{
+                    "id":"b655d86c-fdf6-4e68-a1e9-abc223f84a65",
+                    "site":{
+                        "id":"100",
+                        "domain": "test.domain",
+                        "page": "https://test.domain?target=_blank",
+                        "keywords": "fashion"
+                    },
+                    "imp":[
+                        {
+                            "id":"1",
+                            "banner":{
+                                "w":300,
+                                "h":250
+                            },
+                            "secure":1,
+                            "ext":{
+                                "bidder":{
+                                    "pubid":"test-pubid",
+                                    "token":"test-pub-token"
+                                }
+                            }
+                        }
+                    ],
+                    "device":{
+                        "os":"android",
+                        "ua":"Mozilla/5.0 (Linux; Android 8.0.0; SC-04J Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.162 Mobile Safari/537.36",
+                        "ip":"101.101.101.101",
+                        "h":1280,
+                        "w":720
+                    },
+                    "at":1,
+                    "tmax":1200,
+                    "test":1
+                },
+                "impIDs":["1"]
+            },
+            "mockResponse":{
+                "status":200,
+                "body":{
+                    "id":"b655d86c-fdf6-4e68-a1e9-abc223f84a65",
+                    "seatbid":[
+                        {
+                            "bid":[
+                                {
+                                    "price":0.01,
+                                    "adm":"test-adm",
+                                    "impid":"1",
+                                    "id":"test-bid-id",
+                                    "h":250,
+                                    "adomain":[
+                                        "adv.com"
+                                    ],
+                                    "crid":"test-site-crid",
+                                    "w":300,
+                                    "ext":{
+                                        "mediatype":"banner"
+                                    }
+                                }
+                            ],
+                            "seat":"test-seat"
+                        }
+                    ],
+                    "cur":"USD"
+                }
+            }
+        }
+    ],
+    "expectedBidResponses":[
+        {
+            "bids":[
+                {
+                    "bid":{
+                        "price":0.01,
+                        "adm":"test-adm",
+                        "impid":"1",
+                        "id":"test-bid-id",
+                        "h":250,
+                        "adomain":[
+                            "adv.com"
+                        ],
+                        "crid":"test-site-crid",
+                        "w":300,
+                         "ext":{
+                             "mediatype":"banner"
+                         }
+                    },
+                    "type":"banner"
+                }
+            ]
+        }
+    ]
+}
diff --git a/adapters/bluesea/blueseatest/exemplary/site-native.json b/adapters/bluesea/blueseatest/exemplary/site-native.json
new file mode 100644
index 00000000000..b907ebdbea4
--- /dev/null
+++ b/adapters/bluesea/blueseatest/exemplary/site-native.json
@@ -0,0 +1,133 @@
+{
+    "mockBidRequest":{
+        "id":"b655d86c-fdf6-4e68-a1e9-abc223f84a65",
+        "site":{
+            "id": "100",
+            "domain": "test.domain",
+            "page": "https://test.domain?target=_blank",
+            "keywords": "fashion"
+        },
+        "imp":[
+            {
+                "id":"1",
+                "native":{
+                    "request":"{\"ver\":\"1.2\",\"context\":1,\"plcmttype\":4,\"plcmtcnt\":1,\"assets\":[{\"id\":1,\"required\":1,\"title\":{\"len\":150}},{\"id\":2,\"required\":1,\"img\":{\"type\":3,\"wmin\":100,\"hmin\":100}},{\"id\":3,\"required\":1,\"data\":{\"type\":2,\"len\":120}}]}",
+                    "ver":"1.2"
+                },
+                "secure":1,
+                "ext":{
+                    "bidder":{
+                        "pubid":"test-pubid",
+                        "token":"test-pub-token"
+                    }
+                }
+            }
+        ],
+        "device":{
+            "os":"android",
+            "ua":"Mozilla/5.0 (Linux; Android 8.0.0; SC-04J Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.162 Mobile Safari/537.36",
+            "ip":"101.101.101.101",
+            "h":1280,
+            "w":720
+        },
+        "at":1,
+        "tmax":1200,
+        "test":1
+    },
+    "httpCalls":[
+        {
+            "expectedRequest":{
+                "uri":"https://test.prebid.bluesea?pubid=test-pubid&token=test-pub-token",
+                "body":{
+                    "id":"b655d86c-fdf6-4e68-a1e9-abc223f84a65",
+                    "site":{
+                        "id":"100",
+                        "domain": "test.domain",
+                        "page": "https://test.domain?target=_blank",
+                        "keywords": "fashion"
+                    },
+                    "imp":[
+                        {
+                            "id":"1",
+                            "native":{
+                                "request":"{\"ver\":\"1.2\",\"context\":1,\"plcmttype\":4,\"plcmtcnt\":1,\"assets\":[{\"id\":1,\"required\":1,\"title\":{\"len\":150}},{\"id\":2,\"required\":1,\"img\":{\"type\":3,\"wmin\":100,\"hmin\":100}},{\"id\":3,\"required\":1,\"data\":{\"type\":2,\"len\":120}}]}",
+                                "ver":"1.2"
+                            },
+                            "secure":1,
+                            "ext":{
+                                "bidder":{
+                                    "pubid":"test-pubid",
+                                    "token":"test-pub-token"
+                                }
+                            }
+                        }
+                    ],
+                    "device":{
+                        "os":"android",
+                        "ua":"Mozilla/5.0 (Linux; Android 8.0.0; SC-04J Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.162 Mobile Safari/537.36",
+                        "ip":"101.101.101.101",
+                        "h":1280,
+                        "w":720
+                    },
+                    "at":1,
+                    "tmax":1200,
+                    "test":1
+                },
+                "impIDs":["1"]
+            },
+            "mockResponse":{
+                "status":200,
+                "body":{
+                    "id":"b655d86c-fdf6-4e68-a1e9-abc223f84a65",
+                    "seatbid":[
+                        {
+                            "bid":[
+                                {
+                                    "price":0.01,
+                                    "adm":"test-native-adm",
+                                    "impid":"1",
+                                    "id":"test-bid-id",
+                                    "h":250,
+                                    "adomain":[
+                                        "adv.com"
+                                    ],
+                                    "crid":"test-site-native-crid",
+                                    "w":300,
+                                    "ext":{
+                                        "mediatype":"native"
+                                    }
+                                }
+                            ],
+                            "seat":"test-seat"
+                        }
+                    ],
+                    "cur":"USD"
+                }
+            }
+        }
+    ],
+    "expectedBidResponses":[
+        {
+            "bids":[
+                {
+                    "bid":{
+                        "price":0.01,
+                        "adm":"test-native-adm",
+                        "impid":"1",
+                        "id":"test-bid-id",
+                        "h":250,
+                        "adomain":[
+                            "adv.com"
+                        ],
+                        "crid":"test-site-native-crid",
+                        "w":300,
+                        "ext":{
+                            "mediatype":"native"
+                        }
+                    },
+                    "type":"native"
+                }
+            ]
+        }
+    ]
+}
diff --git a/adapters/bluesea/blueseatest/exemplary/site-video.json b/adapters/bluesea/blueseatest/exemplary/site-video.json
new file mode 100644
index 00000000000..dd191105cd3
--- /dev/null
+++ b/adapters/bluesea/blueseatest/exemplary/site-video.json
@@ -0,0 +1,163 @@
+{
+    "mockBidRequest":{
+        "id":"b655d86c-fdf6-4e68-a1e9-abc223f84a65",
+        "site":{
+            "id": "100",
+            "domain": "test.domain",
+            "page": "https://test.domain?target=_blank",
+            "keywords": "fashion"
+        },
+        "imp":[
+            {
+                "id":"1",
+                "video":{
+                    "mimes":[
+                        "video/mp4",
+                        "application/javascript",
+                        "video/webm"
+                    ],
+                    "minduration":5,
+                    "maxduration":120,
+                    "protocols":[
+                        2,
+                        3,
+                        5,
+                        6
+                    ],
+                    "pos":7,
+                    "w":320,
+                    "h":480,
+                    "linearity":1
+                },
+                "secure":1,
+                "ext":{
+                    "bidder":{
+                        "pubid":"test-pubid",
+                        "token":"test-pub-token"
+                    }
+                }
+            }
+        ],
+        "device":{
+            "os":"android",
+            "ua":"Mozilla/5.0 (Linux; Android 8.0.0; SC-04J Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.162 Mobile Safari/537.36",
+            "ip":"101.101.101.101",
+            "h":1280,
+            "w":720
+        },
+        "at":1,
+        "tmax":1200,
+        "test":1
+    },
+    "httpCalls":[
+        {
+            "expectedRequest":{
+                "uri":"https://test.prebid.bluesea?pubid=test-pubid&token=test-pub-token",
+                "body":{
+                    "id":"b655d86c-fdf6-4e68-a1e9-abc223f84a65",
+                    "site":{
+                        "id":"100",
+                        "domain": "test.domain",
+                        "page": "https://test.domain?target=_blank",
+                        "keywords": "fashion"
+                    },
+                    "imp":[
+                        {
+                            "id":"1",
+                            "video":{
+                                "mimes":[
+                                    "video/mp4",
+                                    "application/javascript",
+                                    "video/webm"
+                                ],
+                                "minduration":5,
+                                "maxduration":120,
+                                "protocols":[
+                                    2,
+                                    3,
+                                    5,
+                                    6
+                                ],
+                                "pos":7,
+                                "w":320,
+                                "h":480,
+                                "linearity":1
+                            },
+                            "secure":1,
+                            "ext":{
+                                "bidder":{
+                                    "pubid":"test-pubid",
+                                    "token":"test-pub-token"
+                                }
+                            }
+                        }
+                    ],
+                    "device":{
+                        "os":"android",
+                        "ua":"Mozilla/5.0 (Linux; Android 8.0.0; SC-04J Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.162 Mobile Safari/537.36",
+                        "ip":"101.101.101.101",
+                        "h":1280,
+                        "w":720
+                    },
+                    "at":1,
+                    "tmax":1200,
+                    "test":1
+                },
+                "impIDs":["1"]
+            },
+            "mockResponse":{
+                "status":200,
+                "body":{
+                    "id":"b655d86c-fdf6-4e68-a1e9-abc223f84a65",
+                    "seatbid":[
+                        {
+                            "bid":[
+                                {
+                                    "price":0.01,
+                                    "adm":"test-vast",
+                                    "impid":"1",
+                                    "id":"test-bid-id",
+                                    "h":480,
+                                    "adomain":[
+                                        "adv.com"
+                                    ],
+                                    "crid":"test-site-crid",
+                                    "w":320,
+                                    "ext":{
+                                        "mediatype":"video"
+                                    }
+                                }
+                            ],
+                            "seat":"test-seat"
+                        }
+                    ],
+                    "cur":"USD"
+                }
+            }
+        }
+    ],
+    "expectedBidResponses":[
+        {
+            "bids":[
+                {
+                    "bid":{
+                        "price":0.01,
+                        "adm":"test-vast",
+                        "impid":"1",
+                        "id":"test-bid-id",
+                        "h":480,
+                        "adomain":[
+                            "adv.com"
+                        ],
+                        "crid":"test-site-crid",
+                        "w":320,
+                        "ext":{
+                            "mediatype":"video"
+                        }
+                    },
+                    "type":"video"
+                }
+            ]
+        }
+    ]
+}
diff --git a/adapters/bluesea/params_test.go b/adapters/bluesea/params_test.go
index e1f7661ac09..79d15d0baa9 100644
--- a/adapters/bluesea/params_test.go
+++ b/adapters/bluesea/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // TestValidParams makes sure that the bluesea schema accepts all imp.ext fields which we intend to support.
diff --git a/adapters/bmtm/brightmountainmedia.go b/adapters/bmtm/brightmountainmedia.go
index 068021ff337..6f48df6d4de 100644
--- a/adapters/bmtm/brightmountainmedia.go
+++ b/adapters/bmtm/brightmountainmedia.go
@@ -7,10 +7,11 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -48,14 +49,14 @@ func (a *adapter) makeRequest(ortbRequest openrtb2.BidRequest, ortbImp openrtb2.
 	}
 
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(ortbImp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(ortbImp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Error unmarshalling ExtImpBidder: %s", err.Error()),
 		}
 	}
 
 	var bmtmExt openrtb_ext.ImpExtBmtm
-	if err := json.Unmarshal(bidderExt.Bidder, &bmtmExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &bmtmExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Error unmarshalling ExtImpBmtm: %s", err.Error()),
 		}
@@ -99,7 +100,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/bmtm/brightmountainmedia_test.go b/adapters/bmtm/brightmountainmedia_test.go
index f98cbde0063..28af575c572 100644
--- a/adapters/bmtm/brightmountainmedia_test.go
+++ b/adapters/bmtm/brightmountainmedia_test.go
@@ -3,9 +3,9 @@ package bmtm
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/bmtm/params_test.go b/adapters/bmtm/params_test.go
index d4a07e5a294..f6f8b6105e7 100644
--- a/adapters/bmtm/params_test.go
+++ b/adapters/bmtm/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/boldwin/boldwin.go b/adapters/boldwin/boldwin.go
index 48de29f3ce2..2dbb1454287 100644
--- a/adapters/boldwin/boldwin.go
+++ b/adapters/boldwin/boldwin.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -44,10 +45,10 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var boldwinExt openrtb_ext.ImpExtBoldwin
 
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			return nil, []error{err}
 		}
-		if err = json.Unmarshal(bidderExt.Bidder, &boldwinExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &boldwinExt); err != nil {
 			return nil, []error{err}
 		}
 
@@ -111,7 +112,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/boldwin/boldwin_test.go b/adapters/boldwin/boldwin_test.go
index a8921a9d27f..1a270fcfe9e 100644
--- a/adapters/boldwin/boldwin_test.go
+++ b/adapters/boldwin/boldwin_test.go
@@ -3,9 +3,9 @@ package boldwin
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/boldwin/boldwintest/supplemental/bad_response.json b/adapters/boldwin/boldwintest/supplemental/bad_response.json
index 231a089d2ae..c046bd11674 100644
--- a/adapters/boldwin/boldwintest/supplemental/bad_response.json
+++ b/adapters/boldwin/boldwintest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/boldwin/params_test.go b/adapters/boldwin/params_test.go
index 2cef0d59cd6..627af2418f1 100644
--- a/adapters/boldwin/params_test.go
+++ b/adapters/boldwin/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/brave/brave.go b/adapters/brave/brave.go
index a641314813a..4cca024f43c 100755
--- a/adapters/brave/brave.go
+++ b/adapters/brave/brave.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -67,13 +68,13 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 
 func (a *adapter) getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpBrave, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
 	}
 	var braveExt openrtb_ext.ExtImpBrave
-	if err := json.Unmarshal(bidderExt.Bidder, &braveExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &braveExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
@@ -118,7 +119,7 @@ func (a *adapter) MakeBids(
 	}
 
 	var bidResponse openrtb2.BidResponse
-	if err := json.Unmarshal(bidderResponse.Body, &bidResponse); err != nil {
+	if err := jsonutil.Unmarshal(bidderResponse.Body, &bidResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/brave/brave_test.go b/adapters/brave/brave_test.go
index e4f58252425..a1ea0cd70de 100644
--- a/adapters/brave/brave_test.go
+++ b/adapters/brave/brave_test.go
@@ -3,9 +3,9 @@ package brave
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/brave/params_test.go b/adapters/brave/params_test.go
index c4bcd99959b..fd0a6f8c633 100644
--- a/adapters/brave/params_test.go
+++ b/adapters/brave/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/bwx/bwx.go b/adapters/bwx/bwx.go
index baa80498347..55e64a05c25 100644
--- a/adapters/bwx/bwx.go
+++ b/adapters/bwx/bwx.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type bidType struct {
@@ -41,14 +42,14 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 
 func (a *adapter) buildEndpointFromRequest(imp *openrtb2.Imp) (string, error) {
 	var impExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize bidder impression extension: %v", err),
 		}
 	}
 
 	var boldwinxExt openrtb_ext.ExtBWX
-	if err := json.Unmarshal(impExt.Bidder, &boldwinxExt); err != nil {
+	if err := jsonutil.Unmarshal(impExt.Bidder, &boldwinxExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize BoldwinX extension: %v", err),
 		}
@@ -110,7 +111,7 @@ func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/bwx/bwx_test.go b/adapters/bwx/bwx_test.go
index 4e984008cec..10246ee8a81 100644
--- a/adapters/bwx/bwx_test.go
+++ b/adapters/bwx/bwx_test.go
@@ -3,9 +3,9 @@ package bwx
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/bwx/bwxtest/supplemental/bad-response.json b/adapters/bwx/bwxtest/supplemental/bad-response.json
index 8a26dc6409f..b75b2069abe 100644
--- a/adapters/bwx/bwxtest/supplemental/bad-response.json
+++ b/adapters/bwx/bwxtest/supplemental/bad-response.json
@@ -99,7 +99,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/bwx/bwxtest/supplemental/invalid-ext-bidder-object.json b/adapters/bwx/bwxtest/supplemental/invalid-ext-bidder-object.json
index ed081b7912b..4a4c06e2bd3 100644
--- a/adapters/bwx/bwxtest/supplemental/invalid-ext-bidder-object.json
+++ b/adapters/bwx/bwxtest/supplemental/invalid-ext-bidder-object.json
@@ -42,7 +42,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize BoldwinX extension: json: cannot unmarshal array into Go value of type openrtb_ext.ExtBWX",
+      "value": "Failed to deserialize BoldwinX extension: expect { or n, but found [",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/bwx/bwxtest/supplemental/invalid-ext-object.json b/adapters/bwx/bwxtest/supplemental/invalid-ext-object.json
index aa215eb3e34..16cf58bbe54 100644
--- a/adapters/bwx/bwxtest/supplemental/invalid-ext-object.json
+++ b/adapters/bwx/bwxtest/supplemental/invalid-ext-object.json
@@ -40,7 +40,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize bidder impression extension: json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "Failed to deserialize bidder impression extension: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/bwx/params_test.go b/adapters/bwx/params_test.go
index f51d863033f..515fbd5073e 100644
--- a/adapters/bwx/params_test.go
+++ b/adapters/bwx/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/cadent_aperture_mx/cadent_aperture_mxtest/supplemental/invalid-response-unmarshall-error.json b/adapters/cadent_aperture_mx/cadent_aperture_mxtest/supplemental/invalid-response-unmarshall-error.json
index 5a48518513f..904f54de283 100644
--- a/adapters/cadent_aperture_mx/cadent_aperture_mxtest/supplemental/invalid-response-unmarshall-error.json
+++ b/adapters/cadent_aperture_mx/cadent_aperture_mxtest/supplemental/invalid-response-unmarshall-error.json
@@ -62,8 +62,8 @@
 
     "expectedMakeBidsErrors": [
         {
-            "value": "Unable to unpackage bid response\\. Error: json: cannot unmarshal string into Go struct field (Bid\\.seatbid\\.bid\\.w|Bid\\.w) of type int64",
-            "comparison": "regex"
+            "value": "Unable to unpackage bid response. Error: cannot unmarshal openrtb2.Bid.W: unexpected character",
+            "comparison": "startswith"
         }
     ]
 }
diff --git a/adapters/cadent_aperture_mx/cadentaperturemx.go b/adapters/cadent_aperture_mx/cadentaperturemx.go
index ae191469a27..58902bad551 100644
--- a/adapters/cadent_aperture_mx/cadentaperturemx.go
+++ b/adapters/cadent_aperture_mx/cadentaperturemx.go
@@ -11,10 +11,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -84,14 +85,14 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 
 func unpackImpExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpCadentApertureMX, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 
 	var cadentExt openrtb_ext.ExtImpCadentApertureMX
-	if err := json.Unmarshal(bidderExt.Bidder, &cadentExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &cadentExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("ignoring imp id=%s, invalid ImpExt", imp.ID),
 		}
@@ -267,7 +268,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Unable to unpackage bid response. Error: %s", err.Error()),
 		}}
diff --git a/adapters/cadent_aperture_mx/cadentaperturemx_test.go b/adapters/cadent_aperture_mx/cadentaperturemx_test.go
index 961459a2ea8..7a951555d0b 100644
--- a/adapters/cadent_aperture_mx/cadentaperturemx_test.go
+++ b/adapters/cadent_aperture_mx/cadentaperturemx_test.go
@@ -3,10 +3,10 @@ package cadentaperturemx
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/cadent_aperture_mx/params_test.go b/adapters/cadent_aperture_mx/params_test.go
index 6691537d02c..d505bd8329c 100644
--- a/adapters/cadent_aperture_mx/params_test.go
+++ b/adapters/cadent_aperture_mx/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/ccx/ccx.go b/adapters/ccx/ccx.go
index eb9e3597265..64bb599afda 100644
--- a/adapters/ccx/ccx.go
+++ b/adapters/ccx/ccx.go
@@ -6,11 +6,12 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -62,7 +63,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/ccx/ccx_test.go b/adapters/ccx/ccx_test.go
index 86f85dc6eb7..de095d72598 100644
--- a/adapters/ccx/ccx_test.go
+++ b/adapters/ccx/ccx_test.go
@@ -3,9 +3,9 @@ package ccx
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/ccx/params_test.go b/adapters/ccx/params_test.go
index cb500fec509..ff600fada16 100644
--- a/adapters/ccx/params_test.go
+++ b/adapters/ccx/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/cointraffic/cointraffic.go b/adapters/cointraffic/cointraffic.go
index e5c6b9156ce..781d8def81a 100644
--- a/adapters/cointraffic/cointraffic.go
+++ b/adapters/cointraffic/cointraffic.go
@@ -2,11 +2,13 @@ package cointraffic
 
 import (
 	"encoding/json"
-	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
 	"net/http"
+
+	"github.com/prebid/openrtb/v20/openrtb2"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -53,7 +55,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/cointraffic/cointraffic_test.go b/adapters/cointraffic/cointraffic_test.go
index 2e82efa3317..133dfd2af2c 100644
--- a/adapters/cointraffic/cointraffic_test.go
+++ b/adapters/cointraffic/cointraffic_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsDir = "cointraffictest"
diff --git a/adapters/cointraffic/params_test.go b/adapters/cointraffic/params_test.go
index 0bd0421aed0..484a72c66b7 100644
--- a/adapters/cointraffic/params_test.go
+++ b/adapters/cointraffic/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/cointraffic.json
diff --git a/adapters/coinzilla/coinzilla.go b/adapters/coinzilla/coinzilla.go
index 8939a75cec7..21e321406cc 100644
--- a/adapters/coinzilla/coinzilla.go
+++ b/adapters/coinzilla/coinzilla.go
@@ -6,11 +6,12 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
@@ -67,7 +68,7 @@ func (adapter *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToB
 	}
 
 	var openRTBBidderResponse openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/coinzilla/coinzilla_test.go b/adapters/coinzilla/coinzilla_test.go
index 39b3bb1f6e5..830028f24f7 100644
--- a/adapters/coinzilla/coinzilla_test.go
+++ b/adapters/coinzilla/coinzilla_test.go
@@ -3,9 +3,9 @@ package coinzilla
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsDir = "coinzillatest"
diff --git a/adapters/coinzilla/params_test.go b/adapters/coinzilla/params_test.go
index dd2cd757496..d174b1441aa 100644
--- a/adapters/coinzilla/params_test.go
+++ b/adapters/coinzilla/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/colossus/colossus.go b/adapters/colossus/colossus.go
index d66b588ab4e..0fc1e50a29e 100644
--- a/adapters/colossus/colossus.go
+++ b/adapters/colossus/colossus.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type ColossusAdapter struct {
@@ -99,7 +100,7 @@ func (a *ColossusAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externa
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -124,7 +125,7 @@ func (a *ColossusAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externa
 
 func getMediaTypeForImp(bid openrtb2.Bid, imps []openrtb2.Imp) (openrtb_ext.BidType, error) {
 	var bidExt ColossusResponseBidExt
-	err := json.Unmarshal(bid.Ext, &bidExt)
+	err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 	if err == nil {
 		switch bidExt.MediaType {
 		case "banner":
diff --git a/adapters/colossus/colossus_test.go b/adapters/colossus/colossus_test.go
index 6298b7f3958..227bd635ae0 100644
--- a/adapters/colossus/colossus_test.go
+++ b/adapters/colossus/colossus_test.go
@@ -3,9 +3,9 @@ package colossus
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/colossus/colossustest/supplemental/bad_response.json b/adapters/colossus/colossustest/supplemental/bad_response.json
index 10efa26e397..038c597d42f 100644
--- a/adapters/colossus/colossustest/supplemental/bad_response.json
+++ b/adapters/colossus/colossustest/supplemental/bad_response.json
@@ -79,7 +79,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/colossus/params_test.go b/adapters/colossus/params_test.go
index ebafd637d6a..bf924e4eae5 100644
--- a/adapters/colossus/params_test.go
+++ b/adapters/colossus/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // TestValidParams makes sure that the colossus schema accepts all imp.ext fields which we intend to support.
diff --git a/adapters/compass/compass.go b/adapters/compass/compass.go
index ff74757d058..28f46bc7e2f 100644
--- a/adapters/compass/compass.go
+++ b/adapters/compass/compass.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -44,10 +45,10 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var compassExt openrtb_ext.ImpExtCompass
 
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			return nil, []error{err}
 		}
-		if err = json.Unmarshal(bidderExt.Bidder, &compassExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &compassExt); err != nil {
 			return nil, []error{err}
 		}
 
@@ -111,7 +112,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/compass/compass_test.go b/adapters/compass/compass_test.go
index 08d9d1bb46e..7aed7616ded 100644
--- a/adapters/compass/compass_test.go
+++ b/adapters/compass/compass_test.go
@@ -3,9 +3,9 @@ package compass
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/compass/compasstest/supplemental/bad_response.json b/adapters/compass/compasstest/supplemental/bad_response.json
index 86656d785bc..ca81c4cc167 100644
--- a/adapters/compass/compasstest/supplemental/bad_response.json
+++ b/adapters/compass/compasstest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/compass/params_test.go b/adapters/compass/params_test.go
index 37074bb40f7..edabac29752 100644
--- a/adapters/compass/params_test.go
+++ b/adapters/compass/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/concert/concert.go b/adapters/concert/concert.go
index 26bb105842a..adf71442744 100644
--- a/adapters/concert/concert.go
+++ b/adapters/concert/concert.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -38,7 +39,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 	}
 
 	var requestMap map[string]interface{}
-	err = json.Unmarshal(requestJSON, &requestMap)
+	err = jsonutil.Unmarshal(requestJSON, &requestMap)
 	if err != nil {
 		return nil, []error{err}
 	}
@@ -78,7 +79,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -129,10 +130,10 @@ func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 
 func getBidderExt(imp openrtb2.Imp) (bidderImpExt openrtb_ext.ImpExtConcert, err error) {
 	var impExt adapters.ExtImpBidder
-	if err = json.Unmarshal(imp.Ext, &impExt); err != nil {
+	if err = jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 		return bidderImpExt, fmt.Errorf("imp ext: %v", err)
 	}
-	if err = json.Unmarshal(impExt.Bidder, &bidderImpExt); err != nil {
+	if err = jsonutil.Unmarshal(impExt.Bidder, &bidderImpExt); err != nil {
 		return bidderImpExt, fmt.Errorf("bidder ext: %v", err)
 	}
 	return bidderImpExt, nil
diff --git a/adapters/concert/concert_test.go b/adapters/concert/concert_test.go
index e8c06d06377..d6cea80fb93 100644
--- a/adapters/concert/concert_test.go
+++ b/adapters/concert/concert_test.go
@@ -3,9 +3,9 @@ package concert
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/concert/params_test.go b/adapters/concert/params_test.go
index 4cf653d2b27..b8ec65bda88 100644
--- a/adapters/concert/params_test.go
+++ b/adapters/concert/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/connectad/connectad.go b/adapters/connectad/connectad.go
index 083d6830935..dd13bc3764d 100644
--- a/adapters/connectad/connectad.go
+++ b/adapters/connectad/connectad.go
@@ -8,10 +8,11 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type ConnectAdAdapter struct {
@@ -84,7 +85,7 @@ func (a *ConnectAdAdapter) MakeBids(bidReq *openrtb2.BidRequest, unused *adapter
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(httpRes.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(httpRes.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Unable to unpackage bid response. Error: %s", err.Error()),
 		}}
@@ -156,14 +157,14 @@ func addHeaderIfNonEmpty(headers http.Header, headerName string, headerValue str
 
 func unpackImpExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpConnectAd, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Impression id=%s has an Error: %s", imp.ID, err.Error()),
 		}
 	}
 
 	var cadExt openrtb_ext.ExtImpConnectAd
-	if err := json.Unmarshal(bidderExt.Bidder, &cadExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &cadExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Impression id=%s, has invalid Ext", imp.ID),
 		}
diff --git a/adapters/connectad/connectad_test.go b/adapters/connectad/connectad_test.go
index 6ce9dd3eade..4563e0045f9 100644
--- a/adapters/connectad/connectad_test.go
+++ b/adapters/connectad/connectad_test.go
@@ -3,9 +3,9 @@ package connectad
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/connectad/connectadtest/supplemental/badresponse.json b/adapters/connectad/connectadtest/supplemental/badresponse.json
index 9f2761c9044..0b714f44fe6 100644
--- a/adapters/connectad/connectadtest/supplemental/badresponse.json
+++ b/adapters/connectad/connectadtest/supplemental/badresponse.json
@@ -84,7 +84,7 @@
     ],
     "expectedMakeBidsErrors": [
         {
-            "value": "Unable to unpackage bid response. Error: json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+            "value": "Unable to unpackage bid response. Error: expect { or n, but found \"",
             "comparison": "literal"
           }
     ]
diff --git a/adapters/connectad/connectadtest/supplemental/no_ext.json b/adapters/connectad/connectadtest/supplemental/no_ext.json
index af1b671a5b9..e75ec87b243 100644
--- a/adapters/connectad/connectadtest/supplemental/no_ext.json
+++ b/adapters/connectad/connectadtest/supplemental/no_ext.json
@@ -21,8 +21,8 @@
     },
     "expectedMakeRequestsErrors": [
       {
-        "value": "Impression id=test-banner-imp-id has an Error: unexpected end of JSON input",
-        "comparison": "literal"
+        "value": "Impression id=test-banner-imp-id has an Error: expect { or n, but found",
+        "comparison": "startswith"
       },
       {
         "value": "Error in preprocess of Imp",
diff --git a/adapters/connectad/params_test.go b/adapters/connectad/params_test.go
index 94c17aa0d8f..dc7c40be729 100644
--- a/adapters/connectad/params_test.go
+++ b/adapters/connectad/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/consumable/consumable.go b/adapters/consumable/consumable.go
index 724a3d45721..9b80fb14599 100644
--- a/adapters/consumable/consumable.go
+++ b/adapters/consumable/consumable.go
@@ -5,10 +5,11 @@ import (
 	"fmt"
 	"net/http"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 )
@@ -83,7 +84,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -144,14 +145,14 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 
 func extractExtensions(impression openrtb2.Imp) (*adapters.ExtImpBidder, *openrtb_ext.ExtImpConsumable, []error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(impression.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(impression.Ext, &bidderExt); err != nil {
 		return nil, nil, []error{&errortypes.BadInput{
 			Message: err.Error(),
 		}}
 	}
 
 	var consumableExt openrtb_ext.ExtImpConsumable
-	if err := json.Unmarshal(bidderExt.Bidder, &consumableExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &consumableExt); err != nil {
 		return nil, nil, []error{&errortypes.BadInput{
 			Message: err.Error(),
 		}}
diff --git a/adapters/consumable/consumable_test.go b/adapters/consumable/consumable_test.go
index 05fbf88da4f..200d6159eae 100644
--- a/adapters/consumable/consumable_test.go
+++ b/adapters/consumable/consumable_test.go
@@ -6,11 +6,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/consumable/params_test.go b/adapters/consumable/params_test.go
index 99a993e9752..3820acc7376 100644
--- a/adapters/consumable/params_test.go
+++ b/adapters/consumable/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/consumable.json
diff --git a/adapters/conversant/conversant.go b/adapters/conversant/conversant.go
index b4cf7dcb091..aa05530f815 100644
--- a/adapters/conversant/conversant.go
+++ b/adapters/conversant/conversant.go
@@ -8,10 +8,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type ConversantAdapter struct {
@@ -25,14 +26,14 @@ func (c *ConversantAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *
 	}
 	for i := 0; i < len(request.Imp); i++ {
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(request.Imp[i].Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(request.Imp[i].Ext, &bidderExt); err != nil {
 			return nil, []error{&errortypes.BadInput{
 				Message: fmt.Sprintf("Impression[%d] missing ext object", i),
 			}}
 		}
 
 		var cnvrExt openrtb_ext.ExtImpConversant
-		if err := json.Unmarshal(bidderExt.Bidder, &cnvrExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &cnvrExt); err != nil {
 			return nil, []error{&errortypes.BadInput{
 				Message: fmt.Sprintf("Impression[%d] missing ext.bidder object", i),
 			}}
@@ -164,7 +165,7 @@ func (c *ConversantAdapter) MakeBids(internalRequest *openrtb2.BidRequest, exter
 	}
 
 	var resp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &resp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &resp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("bad server response: %d. ", err),
 		}}
diff --git a/adapters/conversant/conversant_test.go b/adapters/conversant/conversant_test.go
index 1c08ea557ed..eeb5756471a 100644
--- a/adapters/conversant/conversant_test.go
+++ b/adapters/conversant/conversant_test.go
@@ -3,9 +3,9 @@ package conversant
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/copper6ssp/copper6ssp.go b/adapters/copper6ssp/copper6ssp.go
index 57ec6bcc17b..77154dd6860 100644
--- a/adapters/copper6ssp/copper6ssp.go
+++ b/adapters/copper6ssp/copper6ssp.go
@@ -6,9 +6,10 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -43,11 +44,11 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var copper6sspExt openrtb_ext.ImpExtCopper6ssp
 
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
-		if err := json.Unmarshal(bidderExt.Bidder, &copper6sspExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &copper6sspExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
@@ -116,7 +117,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/copper6ssp/copper6ssp_test.go b/adapters/copper6ssp/copper6ssp_test.go
index 25bd2dbc67a..75ca8ee4044 100644
--- a/adapters/copper6ssp/copper6ssp_test.go
+++ b/adapters/copper6ssp/copper6ssp_test.go
@@ -3,9 +3,9 @@ package copper6ssp
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/copper6ssp/copper6ssptest/supplemental/bad_response.json b/adapters/copper6ssp/copper6ssptest/supplemental/bad_response.json
index cd4169c9974..476058ed624 100644
--- a/adapters/copper6ssp/copper6ssptest/supplemental/bad_response.json
+++ b/adapters/copper6ssp/copper6ssptest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/copper6ssp/copper6ssptest/supplemental/no-valid-bidder-param.json b/adapters/copper6ssp/copper6ssptest/supplemental/no-valid-bidder-param.json
index fbe564b6a26..d27134c5ab7 100644
--- a/adapters/copper6ssp/copper6ssptest/supplemental/no-valid-bidder-param.json
+++ b/adapters/copper6ssp/copper6ssptest/supplemental/no-valid-bidder-param.json
@@ -35,7 +35,7 @@
     },
     "expectedMakeRequestsErrors": [
         {
-            "value": "json: cannot unmarshal array into Go struct field ImpExtCopper6ssp.endpointId of type string",
+            "value": "cannot unmarshal openrtb_ext.ImpExtCopper6ssp.EndpointID: expects \" or n, but found [",
             "comparison": "literal"
         }
     ]
diff --git a/adapters/copper6ssp/copper6ssptest/supplemental/no-valid-imp-ext.json b/adapters/copper6ssp/copper6ssptest/supplemental/no-valid-imp-ext.json
index 9d6710efe37..09108b2d847 100644
--- a/adapters/copper6ssp/copper6ssptest/supplemental/no-valid-imp-ext.json
+++ b/adapters/copper6ssp/copper6ssptest/supplemental/no-valid-imp-ext.json
@@ -31,7 +31,7 @@
     },
     "expectedMakeRequestsErrors": [
         {
-            "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+            "value": "expect { or n, but found \"",
             "comparison": "literal"
         }
     ]
diff --git a/adapters/copper6ssp/params_test.go b/adapters/copper6ssp/params_test.go
index f067a5f9d5c..427cf63b263 100644
--- a/adapters/copper6ssp/params_test.go
+++ b/adapters/copper6ssp/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/cpmstar/cpmstar.go b/adapters/cpmstar/cpmstar.go
index 3449963470f..f4f13901266 100644
--- a/adapters/cpmstar/cpmstar.go
+++ b/adapters/cpmstar/cpmstar.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type Adapter struct {
@@ -66,7 +67,7 @@ func preprocess(request *openrtb2.BidRequest) error {
 		var imp = &request.Imp[i]
 		var bidderExt adapters.ExtImpBidder
 
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			return &errortypes.BadInput{
 				Message: err.Error(),
 			}
@@ -77,7 +78,7 @@ func preprocess(request *openrtb2.BidRequest) error {
 		}
 
 		var extImp openrtb_ext.ExtImpCpmstar
-		if err := json.Unmarshal(bidderExt.Bidder, &extImp); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &extImp); err != nil {
 			return &errortypes.BadInput{
 				Message: err.Error(),
 			}
@@ -112,7 +113,7 @@ func (a *Adapter) MakeBids(bidRequest *openrtb2.BidRequest, unused *adapters.Req
 
 	var bidResponse openrtb2.BidResponse
 
-	if err := json.Unmarshal(responseData.Body, &bidResponse); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &bidResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
 		}}
diff --git a/adapters/cpmstar/cpmstar_test.go b/adapters/cpmstar/cpmstar_test.go
index 2a08258358b..478b8989433 100644
--- a/adapters/cpmstar/cpmstar_test.go
+++ b/adapters/cpmstar/cpmstar_test.go
@@ -3,9 +3,9 @@ package cpmstar
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/cpmstar/cpmstartest/supplemental/invalid-response-unmarshall-error.json b/adapters/cpmstar/cpmstartest/supplemental/invalid-response-unmarshall-error.json
index 141cfc0271c..5447f2573b3 100644
--- a/adapters/cpmstar/cpmstartest/supplemental/invalid-response-unmarshall-error.json
+++ b/adapters/cpmstar/cpmstartest/supplemental/invalid-response-unmarshall-error.json
@@ -60,8 +60,8 @@
     ],
     "expectedMakeBidsErrors": [
         {
-            "value": "json: cannot unmarshal string into Go struct field Bid(\\.seatbid\\.bid)?\\.w of type int64",
-            "comparison": "regex"
+            "value": "cannot unmarshal openrtb2.Bid.W: unexpected character",
+            "comparison": "startswith"
         }
     ]
 }
\ No newline at end of file
diff --git a/adapters/cpmstar/cpmstartest/supplemental/wrong-impression-ext.json b/adapters/cpmstar/cpmstartest/supplemental/wrong-impression-ext.json
index 1e8de0acc66..dc30faba5d0 100644
--- a/adapters/cpmstar/cpmstartest/supplemental/wrong-impression-ext.json
+++ b/adapters/cpmstar/cpmstartest/supplemental/wrong-impression-ext.json
@@ -19,8 +19,8 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go struct field ExtImpCpmstar.placementId of type int",
-      "comparison": "literal"
+      "value": "cannot unmarshal openrtb_ext.ExtImpCpmstar.PoolId: unexpected character",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/cpmstar/params_test.go b/adapters/cpmstar/params_test.go
index e0dcb9ced52..aea148c82f6 100644
--- a/adapters/cpmstar/params_test.go
+++ b/adapters/cpmstar/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/cpmstar.json
diff --git a/adapters/criteo/criteo.go b/adapters/criteo/criteo.go
index 7b6a4cfff89..2bfa35ade06 100644
--- a/adapters/criteo/criteo.go
+++ b/adapters/criteo/criteo.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -83,7 +84,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -93,7 +94,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	for _, seatBid := range response.SeatBid {
 		for i := range seatBid.Bid {
 			var bidExt BidExt
-			if err := json.Unmarshal(seatBid.Bid[i].Ext, &bidExt); err != nil {
+			if err := jsonutil.Unmarshal(seatBid.Bid[i].Ext, &bidExt); err != nil {
 				return nil, []error{&errortypes.BadServerResponse{
 					Message: fmt.Sprintf("Missing ext.prebid.type in bid for impression : %s.", seatBid.Bid[i].ImpID),
 				}}
@@ -116,7 +117,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 func (a *adapter) ParseFledgeAuctionConfigs(response openrtb2.BidResponse) []*openrtb_ext.FledgeAuctionConfig {
 	var responseExt CriteoExt
 	if response.Ext != nil {
-		if err := json.Unmarshal(response.Ext, &responseExt); err == nil && len(responseExt.Igi) > 0 {
+		if err := jsonutil.Unmarshal(response.Ext, &responseExt); err == nil && len(responseExt.Igi) > 0 {
 			fledgeAuctionConfigs := make([]*openrtb_ext.FledgeAuctionConfig, 0, len(responseExt.Igi))
 			for _, igi := range responseExt.Igi {
 				if len(igi.Igs) > 0 && igi.Igs[0].Config != nil {
diff --git a/adapters/criteo/criteo_test.go b/adapters/criteo/criteo_test.go
index 5a70961e0b3..66420429a9d 100644
--- a/adapters/criteo/criteo_test.go
+++ b/adapters/criteo/criteo_test.go
@@ -2,13 +2,14 @@ package criteo
 
 import (
 	"fmt"
+	"testing"
+
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/stretchr/testify/assert"
-	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/criteo/params_test.go b/adapters/criteo/params_test.go
index aa17aa87e2e..fd63e582b6c 100644
--- a/adapters/criteo/params_test.go
+++ b/adapters/criteo/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/criteo.json
diff --git a/adapters/cwire/cwire.go b/adapters/cwire/cwire.go
index 244be129b30..2d297f78e9d 100644
--- a/adapters/cwire/cwire.go
+++ b/adapters/cwire/cwire.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 /*
@@ -80,7 +81,7 @@ func (a *adapter) MakeBids(bidReq *openrtb2.BidRequest, unused *adapters.Request
 	}
 
 	var resp openrtb2.BidResponse
-	if err := json.Unmarshal(httpRes.Body, &resp); err != nil {
+	if err := jsonutil.Unmarshal(httpRes.Body, &resp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Error while decoding response, err: %s", err),
 		}}
diff --git a/adapters/cwire/cwire_test.go b/adapters/cwire/cwire_test.go
index bd5f32e99ff..726c3caf093 100644
--- a/adapters/cwire/cwire_test.go
+++ b/adapters/cwire/cwire_test.go
@@ -3,9 +3,9 @@ package cwire
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/cwire/params_test.go b/adapters/cwire/params_test.go
index d8c8b117069..f2971b96107 100644
--- a/adapters/cwire/params_test.go
+++ b/adapters/cwire/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/cwire.json
diff --git a/adapters/datablocks/datablocks.go b/adapters/datablocks/datablocks.go
index aea4d65cfad..a0e318524d8 100644
--- a/adapters/datablocks/datablocks.go
+++ b/adapters/datablocks/datablocks.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type DatablocksAdapter struct {
@@ -87,7 +88,7 @@ func (a *DatablocksAdapter) MakeBids(
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -130,13 +131,13 @@ func splitImpressions(imps []openrtb2.Imp) (map[openrtb_ext.ExtImpDatablocks][]o
 
 func getBidderParams(imp *openrtb2.Imp) (*openrtb_ext.ExtImpDatablocks, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Missing bidder ext: %s", err.Error()),
 		}
 	}
 	var datablocksExt openrtb_ext.ExtImpDatablocks
-	if err := json.Unmarshal(bidderExt.Bidder, &datablocksExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &datablocksExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Cannot Resolve sourceId: %s", err.Error()),
 		}
diff --git a/adapters/datablocks/datablocks_test.go b/adapters/datablocks/datablocks_test.go
index d97560ce332..f44204c7c56 100644
--- a/adapters/datablocks/datablocks_test.go
+++ b/adapters/datablocks/datablocks_test.go
@@ -3,9 +3,9 @@ package datablocks
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/datablocks/datablockstest/supplemental/bad-response-body.json b/adapters/datablocks/datablockstest/supplemental/bad-response-body.json
index 8e872cca163..b8915dd4e56 100644
--- a/adapters/datablocks/datablockstest/supplemental/bad-response-body.json
+++ b/adapters/datablocks/datablockstest/supplemental/bad-response-body.json
@@ -82,7 +82,7 @@
     }],
     "expectedMakeBidsErrors": [
       {
-        "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+        "value": "expect { or n, but found \"",
         "comparison": "literal"  
       }
     ]
diff --git a/adapters/datablocks/datablockstest/supplemental/missing-ext.json b/adapters/datablocks/datablockstest/supplemental/missing-ext.json
index 68d29e880b9..9e72e3cb6e5 100644
--- a/adapters/datablocks/datablockstest/supplemental/missing-ext.json
+++ b/adapters/datablocks/datablockstest/supplemental/missing-ext.json
@@ -18,8 +18,8 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "Missing bidder ext: unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "Missing bidder ext: expect { or n, but found",
+      "comparison": "startswith"
     } 
   ]
 
diff --git a/adapters/decenterads/decenterads.go b/adapters/decenterads/decenterads.go
index e4545466d5c..7981f60c976 100644
--- a/adapters/decenterads/decenterads.go
+++ b/adapters/decenterads/decenterads.go
@@ -8,10 +8,11 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -28,7 +29,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, _ *adapters.ExtraRe
 
 	for _, impression := range impressions {
 		var impExt map[string]json.RawMessage
-		if err := json.Unmarshal(impression.Ext, &impExt); err != nil {
+		if err := jsonutil.Unmarshal(impression.Ext, &impExt); err != nil {
 			errs = append(errs, fmt.Errorf("unable to parse bidder parameers: %s", err))
 			continue
 		}
@@ -78,7 +79,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var bidResponse openrtb2.BidResponse
-	err := json.Unmarshal(responseData.Body, &bidResponse)
+	err := jsonutil.Unmarshal(responseData.Body, &bidResponse)
 	if err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
diff --git a/adapters/decenterads/decenterads_test.go b/adapters/decenterads/decenterads_test.go
index dfb5161b9c4..ba3cefa989d 100644
--- a/adapters/decenterads/decenterads_test.go
+++ b/adapters/decenterads/decenterads_test.go
@@ -3,9 +3,9 @@ package decenterads
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/decenterads/decenteradstest/supplemental/bad_response.json b/adapters/decenterads/decenteradstest/supplemental/bad_response.json
index a6087b506a4..2eaaba4d21a 100644
--- a/adapters/decenterads/decenteradstest/supplemental/bad_response.json
+++ b/adapters/decenterads/decenteradstest/supplemental/bad_response.json
@@ -77,7 +77,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/decenterads/decenteradstest/supplemental/imp_ext_string.json b/adapters/decenterads/decenteradstest/supplemental/imp_ext_string.json
index db938d6a652..4554cb531a7 100644
--- a/adapters/decenterads/decenteradstest/supplemental/imp_ext_string.json
+++ b/adapters/decenterads/decenteradstest/supplemental/imp_ext_string.json
@@ -30,7 +30,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "unable to parse bidder parameers: json: cannot unmarshal string into Go value of type map[string]json.RawMessage",
+      "value": "unable to parse bidder parameers: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/decenterads/params_test.go b/adapters/decenterads/params_test.go
index ef8b47cce41..7672892ed0d 100644
--- a/adapters/decenterads/params_test.go
+++ b/adapters/decenterads/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // TestValidParams makes sure that the decenterads schema accepts all imp.ext fields which we intend to support.
diff --git a/adapters/deepintent/deepintent.go b/adapters/deepintent/deepintent.go
index 32f0d53ddf8..a1867cdadce 100644
--- a/adapters/deepintent/deepintent.go
+++ b/adapters/deepintent/deepintent.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const displayManager string = "di_prebid"
@@ -41,14 +42,14 @@ func (d *DeepintentAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *
 		reqCopy.Imp = []openrtb2.Imp{imp}
 
 		var bidderExt adapters.ExtImpBidder
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: fmt.Sprintf("Impression id=%s has an Error: %s", imp.ID, err.Error()),
 			})
 			continue
 		}
 
-		if err = json.Unmarshal(bidderExt.Bidder, &deepintentExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &deepintentExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: fmt.Sprintf("Impression id=%s, has invalid Ext", imp.ID),
 			})
@@ -87,7 +88,7 @@ func (d *DeepintentAdapter) MakeBids(internalRequest *openrtb2.BidRequest, exter
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/deepintent/deepintent_test.go b/adapters/deepintent/deepintent_test.go
index 9b2c92967b4..6b2d216db38 100644
--- a/adapters/deepintent/deepintent_test.go
+++ b/adapters/deepintent/deepintent_test.go
@@ -3,10 +3,10 @@ package deepintent
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/deepintent/deepintenttest/supplemental/bad_response.json b/adapters/deepintent/deepintenttest/supplemental/bad_response.json
index 7c090732330..c86881f7e36 100644
--- a/adapters/deepintent/deepintenttest/supplemental/bad_response.json
+++ b/adapters/deepintent/deepintenttest/supplemental/bad_response.json
@@ -85,7 +85,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/deepintent/deepintenttest/supplemental/no_ext-1.json b/adapters/deepintent/deepintenttest/supplemental/no_ext-1.json
index 609c08e71ad..ba0c54018d7 100644
--- a/adapters/deepintent/deepintenttest/supplemental/no_ext-1.json
+++ b/adapters/deepintent/deepintenttest/supplemental/no_ext-1.json
@@ -22,7 +22,7 @@
     },
     "expectedMakeRequestsErrors": [
       {
-        "value": "Impression id=test-banner-imp-id has an Error: json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+        "value": "Impression id=test-banner-imp-id has an Error: expect { or n, but found \"",
         "comparison": "literal"
       }
     ]
diff --git a/adapters/deepintent/deepintenttest/supplemental/no_ext.json b/adapters/deepintent/deepintenttest/supplemental/no_ext.json
index f40257e4716..bf2fdf09f29 100644
--- a/adapters/deepintent/deepintenttest/supplemental/no_ext.json
+++ b/adapters/deepintent/deepintenttest/supplemental/no_ext.json
@@ -21,8 +21,8 @@
     },
     "expectedMakeRequestsErrors": [
       {
-        "value": "Impression id=test-banner-imp-id has an Error: unexpected end of JSON input",
-        "comparison": "literal"
+        "value": "Impression id=test-banner-imp-id has an Error: expect { or n, but found",
+        "comparison": "startswith"
       }
     ]
   }
diff --git a/adapters/deepintent/params_test.go b/adapters/deepintent/params_test.go
index 4cd43b73ebe..b45eaa67a8c 100644
--- a/adapters/deepintent/params_test.go
+++ b/adapters/deepintent/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // TestValidParams makes sure that the deepintent schema accepts all imp.ext fields which we intend to support.
diff --git a/adapters/definemedia/definemedia.go b/adapters/definemedia/definemedia.go
index 0bb4ff79e19..7f775b88c36 100644
--- a/adapters/definemedia/definemedia.go
+++ b/adapters/definemedia/definemedia.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -62,7 +63,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -93,7 +94,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 	if bid.Ext != nil {
 		var bidExt openrtb_ext.ExtBid
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil && bidExt.Prebid != nil {
 			if (bidExt.Prebid.Type == openrtb_ext.BidTypeBanner) || (bidExt.Prebid.Type == openrtb_ext.BidTypeNative) {
 				return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
diff --git a/adapters/definemedia/definemedia_test.go b/adapters/definemedia/definemedia_test.go
index 8a2a860d0c0..9d5b39b5b72 100644
--- a/adapters/definemedia/definemedia_test.go
+++ b/adapters/definemedia/definemedia_test.go
@@ -3,9 +3,9 @@ package definemedia
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/definemedia/definemediatest/supplemental/unmarshal-error.json b/adapters/definemedia/definemediatest/supplemental/unmarshal-error.json
index ac03cc6e48c..532fab1224a 100644
--- a/adapters/definemedia/definemediatest/supplemental/unmarshal-error.json
+++ b/adapters/definemedia/definemediatest/supplemental/unmarshal-error.json
@@ -218,7 +218,7 @@
     "expectedBidResponses": [],
     "expectedMakeBidsErrors": [
         {
-            "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+            "value": "expect { or n, but found \"",
             "comparison": "literal"
         }
     ]
diff --git a/adapters/definemedia/params_test.go b/adapters/definemedia/params_test.go
index 45b5be4eae5..bd3912719b3 100644
--- a/adapters/definemedia/params_test.go
+++ b/adapters/definemedia/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/dianomi/dianomi.go b/adapters/dianomi/dianomi.go
index 57cd85a27c3..5f16547de16 100644
--- a/adapters/dianomi/dianomi.go
+++ b/adapters/dianomi/dianomi.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -36,7 +37,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 
 	for _, imp := range request.Imp {
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errors = append(errors, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -44,7 +45,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 		}
 
 		var dianomiImpExt openrtb_ext.ExtImpDianomi
-		if err := json.Unmarshal(bidderExt.Bidder, &dianomiImpExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &dianomiImpExt); err != nil {
 			errors = append(errors, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -65,7 +66,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 		var err error
 
 		if len(request.Ext) > 0 {
-			if err = json.Unmarshal(request.Ext, &requestExt); err != nil {
+			if err = jsonutil.Unmarshal(request.Ext, &requestExt); err != nil {
 				errors = append(errors, err)
 			}
 		}
@@ -121,7 +122,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -148,7 +149,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 	if bid.Ext != nil {
 		var bidExt openrtb_ext.ExtBid
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil && bidExt.Prebid != nil {
 			return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
 		}
diff --git a/adapters/dianomi/dianomi_test.go b/adapters/dianomi/dianomi_test.go
index 1baa4b591b3..23a42fa69c7 100644
--- a/adapters/dianomi/dianomi_test.go
+++ b/adapters/dianomi/dianomi_test.go
@@ -3,9 +3,9 @@ package dianomi
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/dianomi/dianomitest/supplemental/unparsable-response.json b/adapters/dianomi/dianomitest/supplemental/unparsable-response.json
index cf5ab4fca11..3bca23e3826 100644
--- a/adapters/dianomi/dianomitest/supplemental/unparsable-response.json
+++ b/adapters/dianomi/dianomitest/supplemental/unparsable-response.json
@@ -43,7 +43,7 @@
   "expectedBidResponses": [],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal" 
     }
   ]
diff --git a/adapters/dianomi/params_test.go b/adapters/dianomi/params_test.go
index 43a9bf6f4f5..294bfa977f9 100644
--- a/adapters/dianomi/params_test.go
+++ b/adapters/dianomi/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/dianomi.json
diff --git a/adapters/displayio/displayio.go b/adapters/displayio/displayio.go
index a3af7c9614f..cc9845d72f0 100644
--- a/adapters/displayio/displayio.go
+++ b/adapters/displayio/displayio.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -37,18 +38,9 @@ func (adapter *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *
 	for _, impression := range request.Imp {
 		var requestExt map[string]interface{}
 
-		if impression.BidFloor == 0 {
-			errs = append(errs, &errortypes.BadInput{
-				Message: "BidFloor should be defined",
-			})
-			continue
-		}
-
-		if impression.BidFloorCur == "" {
+		if impression.BidFloorCur == "" || impression.BidFloor == 0 {
 			impression.BidFloorCur = "USD"
-		}
-
-		if impression.BidFloorCur != "USD" {
+		} else if impression.BidFloorCur != "USD" {
 			convertedValue, err := requestInfo.ConvertCurrency(impression.BidFloor, impression.BidFloorCur, "USD")
 
 			if err != nil {
@@ -56,8 +48,8 @@ func (adapter *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *
 				continue
 			}
 
-			impression.BidFloorCur = "USD"
 			impression.BidFloor = convertedValue
+			impression.BidFloorCur = "USD"
 		}
 
 		if len(impression.Ext) == 0 {
@@ -66,7 +58,7 @@ func (adapter *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *
 		}
 
 		var bidderExt adapters.ExtImpBidder
-		err := json.Unmarshal(impression.Ext, &bidderExt)
+		err := jsonutil.Unmarshal(impression.Ext, &bidderExt)
 
 		if err != nil {
 			errs = append(errs, err)
@@ -74,7 +66,7 @@ func (adapter *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *
 		}
 
 		var impressionExt openrtb_ext.ExtImpDisplayio
-		err = json.Unmarshal(bidderExt.Bidder, &impressionExt)
+		err = jsonutil.Unmarshal(bidderExt.Bidder, &impressionExt)
 		if err != nil {
 			errs = append(errs, err)
 			continue
@@ -84,7 +76,7 @@ func (adapter *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *
 
 		requestCopy := *request
 
-		err = json.Unmarshal(requestCopy.Ext, &requestExt)
+		err = jsonutil.Unmarshal(requestCopy.Ext, &requestExt)
 		if err != nil {
 			requestExt = make(map[string]interface{})
 		}
@@ -137,7 +129,7 @@ func (adapter *adapter) MakeBids(internalRequest *openrtb2.BidRequest, _ *adapte
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(responseData.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &bidResp); err != nil {
 		msg := fmt.Sprintf("Bad server response: %d", err)
 		return nil, []error{&errortypes.BadServerResponse{Message: msg}}
 	}
diff --git a/adapters/displayio/displayio_test.go b/adapters/displayio/displayio_test.go
index 9f41a59e2a0..b591abeb420 100644
--- a/adapters/displayio/displayio_test.go
+++ b/adapters/displayio/displayio_test.go
@@ -3,9 +3,9 @@ package displayio
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/displayio/displayiotest/supplemental/missing-bidfloor.json b/adapters/displayio/displayiotest/supplemental/missing-bidfloor.json
deleted file mode 100644
index d3fe15778ff..00000000000
--- a/adapters/displayio/displayiotest/supplemental/missing-bidfloor.json
+++ /dev/null
@@ -1,35 +0,0 @@
-{
-  "mockBidRequest": {
-    "id": "testid",
-    "imp": [
-      {
-        "id": "testimpid",
-        "banner": {
-          "format": [
-            {
-              "w": 300,
-              "h": 250
-            },
-            {
-              "w": 320,
-              "h": 50
-            }
-          ]
-        },
-        "ext": {
-          "bidder": {
-            "placementId": "1101",
-            "inventoryId": "1101",
-            "publisherId": "101"
-          }
-        }
-      }
-    ]
-  },
-  "expectedMakeRequestsErrors": [
-    {
-      "value": "BidFloor should be defined",
-      "comparison": "literal"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/adapters/displayio/params_test.go b/adapters/displayio/params_test.go
index f3e1de922a2..2e44954072b 100644
--- a/adapters/displayio/params_test.go
+++ b/adapters/displayio/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/dmx/dmx.go b/adapters/dmx/dmx.go
index 0ad522c4398..458b497826b 100644
--- a/adapters/dmx/dmx.go
+++ b/adapters/dmx/dmx.go
@@ -10,10 +10,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type DmxAdapter struct {
@@ -75,7 +76,7 @@ func (adapter *DmxAdapter) MakeRequests(request *openrtb2.BidRequest, req *adapt
 	}
 
 	if len(request.Imp) >= 1 {
-		err := json.Unmarshal(request.Imp[0].Ext, &rootExtInfo)
+		err := jsonutil.Unmarshal(request.Imp[0].Ext, &rootExtInfo)
 		if err != nil {
 			errs = append(errs, err)
 		} else {
@@ -148,7 +149,7 @@ func (adapter *DmxAdapter) MakeRequests(request *openrtb2.BidRequest, req *adapt
 			hasNoID = false
 		}
 		if dmxReq.User.Ext != nil {
-			if err := json.Unmarshal(dmxReq.User.Ext, &userExt); err == nil {
+			if err := jsonutil.Unmarshal(dmxReq.User.Ext, &userExt); err == nil {
 				if len(userExt.Eids) > 0 {
 					hasNoID = false
 				}
@@ -161,7 +162,7 @@ func (adapter *DmxAdapter) MakeRequests(request *openrtb2.BidRequest, req *adapt
 		var params dmxExt
 		const intVal int8 = 1
 		source := (*json.RawMessage)(&inst.Ext)
-		if err := json.Unmarshal(*source, &params); err != nil {
+		if err := jsonutil.Unmarshal(*source, &params); err != nil {
 			errs = append(errs, err)
 		}
 		if isDmxParams(params.Bidder) {
@@ -236,7 +237,7 @@ func (adapter *DmxAdapter) MakeBids(request *openrtb2.BidRequest, externalReques
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/dmx/dmx_test.go b/adapters/dmx/dmx_test.go
index 8d9b2dc6541..cc46d28f318 100644
--- a/adapters/dmx/dmx_test.go
+++ b/adapters/dmx/dmx_test.go
@@ -6,11 +6,11 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
 )
 
 func TestFetchParams(t *testing.T) {
diff --git a/adapters/dmx/params_test.go b/adapters/dmx/params_test.go
index 4470fb23057..49d89b330fa 100644
--- a/adapters/dmx/params_test.go
+++ b/adapters/dmx/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/driftpixel/driftpixel.go b/adapters/driftpixel/driftpixel.go
index e756b03de70..65532a786cc 100644
--- a/adapters/driftpixel/driftpixel.go
+++ b/adapters/driftpixel/driftpixel.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type bidType struct {
@@ -41,14 +42,14 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 
 func (a *adapter) buildEndpointFromRequest(imp *openrtb2.Imp) (string, error) {
 	var impExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize bidder impression extension: %v", err),
 		}
 	}
 
 	var driftpixelExt openrtb_ext.ExtDriftPixel
-	if err := json.Unmarshal(impExt.Bidder, &driftpixelExt); err != nil {
+	if err := jsonutil.Unmarshal(impExt.Bidder, &driftpixelExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize DriftPixel extension: %v", err),
 		}
@@ -110,7 +111,7 @@ func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/driftpixel/driftpixel_test.go b/adapters/driftpixel/driftpixel_test.go
index ac9268f2306..24bf8b15066 100644
--- a/adapters/driftpixel/driftpixel_test.go
+++ b/adapters/driftpixel/driftpixel_test.go
@@ -3,9 +3,9 @@ package driftpixel
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/driftpixel/driftpixeltest/supplemental/bad-response.json b/adapters/driftpixel/driftpixeltest/supplemental/bad-response.json
index 109e51ed4df..b5811eb2e5f 100644
--- a/adapters/driftpixel/driftpixeltest/supplemental/bad-response.json
+++ b/adapters/driftpixel/driftpixeltest/supplemental/bad-response.json
@@ -99,7 +99,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/driftpixel/driftpixeltest/supplemental/invalid-ext-bidder-object.json b/adapters/driftpixel/driftpixeltest/supplemental/invalid-ext-bidder-object.json
index 1b812955b1d..685b659ea9a 100644
--- a/adapters/driftpixel/driftpixeltest/supplemental/invalid-ext-bidder-object.json
+++ b/adapters/driftpixel/driftpixeltest/supplemental/invalid-ext-bidder-object.json
@@ -42,7 +42,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize DriftPixel extension: json: cannot unmarshal array into Go value of type openrtb_ext.ExtDriftPixel",
+      "value": "Failed to deserialize DriftPixel extension: expect { or n, but found [",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/driftpixel/driftpixeltest/supplemental/invalid-ext-object.json b/adapters/driftpixel/driftpixeltest/supplemental/invalid-ext-object.json
index aa215eb3e34..16cf58bbe54 100644
--- a/adapters/driftpixel/driftpixeltest/supplemental/invalid-ext-object.json
+++ b/adapters/driftpixel/driftpixeltest/supplemental/invalid-ext-object.json
@@ -40,7 +40,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize bidder impression extension: json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "Failed to deserialize bidder impression extension: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/driftpixel/params_test.go b/adapters/driftpixel/params_test.go
index 1470384698b..e8153f054ce 100644
--- a/adapters/driftpixel/params_test.go
+++ b/adapters/driftpixel/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/dxkulture/dxkulture.go b/adapters/dxkulture/dxkulture.go
index 90fb341f533..6b4bfa40031 100644
--- a/adapters/dxkulture/dxkulture.go
+++ b/adapters/dxkulture/dxkulture.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 	"net/url"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 )
@@ -81,7 +82,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var ortbResponse openrtb2.BidResponse
-	err := json.Unmarshal(response.Body, &ortbResponse)
+	err := jsonutil.Unmarshal(response.Body, &ortbResponse)
 	if err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
@@ -122,14 +123,14 @@ func getBidType(bid *openrtb2.Bid) (openrtb_ext.BidType, error) {
 func parseExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpDXKulture, error) {
 	var bidderExt adapters.ExtImpBidder
 
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Ignoring imp id=%s, error while decoding extImpBidder, err: %s", imp.ID, err),
 		}
 	}
 
 	impExt := openrtb_ext.ExtImpDXKulture{}
-	err := json.Unmarshal(bidderExt.Bidder, &impExt)
+	err := jsonutil.Unmarshal(bidderExt.Bidder, &impExt)
 	if err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Ignoring imp id=%s, error while decoding impExt, err: %s", imp.ID, err),
diff --git a/adapters/dxkulture/dxkulture_test.go b/adapters/dxkulture/dxkulture_test.go
index 7344d5a9d51..2ee176968b9 100644
--- a/adapters/dxkulture/dxkulture_test.go
+++ b/adapters/dxkulture/dxkulture_test.go
@@ -3,9 +3,9 @@ package dxkulture
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/dxkulture/dxkulturetest/supplemental/invalid-imp-ext-bidder.json b/adapters/dxkulture/dxkulturetest/supplemental/invalid-imp-ext-bidder.json
index ae30b327030..c60c6080577 100644
--- a/adapters/dxkulture/dxkulturetest/supplemental/invalid-imp-ext-bidder.json
+++ b/adapters/dxkulture/dxkulturetest/supplemental/invalid-imp-ext-bidder.json
@@ -33,7 +33,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "Ignoring imp id=test-imp-id, error while decoding impExt, err: json: cannot unmarshal string into Go value of type openrtb_ext.ExtImpDXKulture",
+      "value": "Ignoring imp id=test-imp-id, error while decoding impExt, err: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/dxkulture/dxkulturetest/supplemental/invalid-imp-ext.json b/adapters/dxkulture/dxkulturetest/supplemental/invalid-imp-ext.json
index 2587dc216d2..379acd586cc 100644
--- a/adapters/dxkulture/dxkulturetest/supplemental/invalid-imp-ext.json
+++ b/adapters/dxkulture/dxkulturetest/supplemental/invalid-imp-ext.json
@@ -31,7 +31,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "Ignoring imp id=test-imp-id, error while decoding extImpBidder, err: json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "Ignoring imp id=test-imp-id, error while decoding extImpBidder, err: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/dxkulture/params_test.go b/adapters/dxkulture/params_test.go
index d1c2f91a7ce..c7997f1862e 100644
--- a/adapters/dxkulture/params_test.go
+++ b/adapters/dxkulture/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/dxkulture.json
diff --git a/adapters/e_volution/evolution.go b/adapters/e_volution/evolution.go
index 89ab5e0994c..1b781c74051 100644
--- a/adapters/e_volution/evolution.go
+++ b/adapters/e_volution/evolution.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -84,7 +85,7 @@ func (a *adapter) MakeBids(
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Bad response, %s", err),
 		}}
@@ -101,7 +102,7 @@ func (a *adapter) MakeBids(
 	for i := range sb.Bid {
 		var bidType openrtb_ext.BidType
 		var bidExt bidExt
-		if err := json.Unmarshal(sb.Bid[i].Ext, &bidExt); err != nil {
+		if err := jsonutil.Unmarshal(sb.Bid[i].Ext, &bidExt); err != nil {
 			bidType = openrtb_ext.BidTypeBanner
 		} else {
 			bidType = bidExt.MediaType
diff --git a/adapters/e_volution/evolution_test.go b/adapters/e_volution/evolution_test.go
index 4529a742077..6a3dbe671e1 100644
--- a/adapters/e_volution/evolution_test.go
+++ b/adapters/e_volution/evolution_test.go
@@ -3,9 +3,9 @@ package evolution
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/e_volution/evolutiontest/supplemental/bad-response.json b/adapters/e_volution/evolutiontest/supplemental/bad-response.json
index d30a01e3158..0878829ca1b 100644
--- a/adapters/e_volution/evolutiontest/supplemental/bad-response.json
+++ b/adapters/e_volution/evolutiontest/supplemental/bad-response.json
@@ -150,7 +150,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "Bad response, json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "Bad response, expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/e_volution/params_test.go b/adapters/e_volution/params_test.go
index 6049bce7780..98558f88abf 100644
--- a/adapters/e_volution/params_test.go
+++ b/adapters/e_volution/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/edge226/edge226.go b/adapters/edge226/edge226.go
index 0859da1df67..19804c88436 100644
--- a/adapters/edge226/edge226.go
+++ b/adapters/edge226/edge226.go
@@ -6,9 +6,10 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -43,10 +44,10 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var edge226Ext openrtb_ext.ImpExtEdge226
 
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			return nil, []error{err}
 		}
-		if err = json.Unmarshal(bidderExt.Bidder, &edge226Ext); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &edge226Ext); err != nil {
 			return nil, []error{err}
 		}
 
@@ -107,7 +108,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/edge226/edge226_test.go b/adapters/edge226/edge226_test.go
index fea4abff1a9..cd3d9385aba 100644
--- a/adapters/edge226/edge226_test.go
+++ b/adapters/edge226/edge226_test.go
@@ -3,9 +3,9 @@ package edge226
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/edge226/edge226test/supplemental/bad_response.json b/adapters/edge226/edge226test/supplemental/bad_response.json
index aa37c31f5b1..7ea65762bdb 100644
--- a/adapters/edge226/edge226test/supplemental/bad_response.json
+++ b/adapters/edge226/edge226test/supplemental/bad_response.json
@@ -78,7 +78,7 @@
   }],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/edge226/params_test.go b/adapters/edge226/params_test.go
index 21a83bd65fd..5161c349d7d 100644
--- a/adapters/edge226/params_test.go
+++ b/adapters/edge226/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/emtv/emtv.go b/adapters/emtv/emtv.go
index f361010ebbe..c8814f80656 100644
--- a/adapters/emtv/emtv.go
+++ b/adapters/emtv/emtv.go
@@ -7,10 +7,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -45,10 +46,10 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var emtvExt openrtb_ext.ImpExtEmtv
 
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			return nil, []error{err}
 		}
-		if err = json.Unmarshal(bidderExt.Bidder, &emtvExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &emtvExt); err != nil {
 			return nil, []error{err}
 		}
 
@@ -116,7 +117,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/emtv/emtv_test.go b/adapters/emtv/emtv_test.go
index 238e463a0d5..0dd4196af48 100644
--- a/adapters/emtv/emtv_test.go
+++ b/adapters/emtv/emtv_test.go
@@ -3,9 +3,9 @@ package emtv
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/emtv/emtvtest/supplemental/bad_response.json b/adapters/emtv/emtvtest/supplemental/bad_response.json
index c732ba92c67..5cc4a338ac3 100644
--- a/adapters/emtv/emtvtest/supplemental/bad_response.json
+++ b/adapters/emtv/emtvtest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/emtv/params_test.go b/adapters/emtv/params_test.go
index 40769b97942..cdea31b075b 100644
--- a/adapters/emtv/params_test.go
+++ b/adapters/emtv/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/eplanning/eplanning.go b/adapters/eplanning/eplanning.go
index 25a44cdd44f..dc8ab900ea3 100644
--- a/adapters/eplanning/eplanning.go
+++ b/adapters/eplanning/eplanning.go
@@ -1,7 +1,6 @@
 package eplanning
 
 import (
-	"encoding/json"
 	"math/rand"
 	"net/http"
 	"net/url"
@@ -13,10 +12,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"strconv"
 )
@@ -243,7 +243,7 @@ func cleanName(name string) string {
 func verifyImp(imp *openrtb2.Imp, isMobile bool, impType int) (*openrtb_ext.ExtImpEPlanning, error) {
 	var bidderExt adapters.ExtImpBidder
 
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Ignoring imp id=%s, error while decoding extImpBidder, err: %s", imp.ID, err),
 		}
@@ -268,7 +268,7 @@ func verifyImp(imp *openrtb2.Imp, isMobile bool, impType int) (*openrtb_ext.ExtI
 	}
 
 	impExt := openrtb_ext.ExtImpEPlanning{}
-	err := json.Unmarshal(bidderExt.Bidder, &impExt)
+	err := jsonutil.Unmarshal(bidderExt.Bidder, &impExt)
 	if err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Ignoring imp id=%s, error while decoding impExt, err: %s", imp.ID, err),
@@ -364,7 +364,7 @@ func (adapter *EPlanningAdapter) MakeBids(internalRequest *openrtb2.BidRequest,
 	}
 
 	var parsedResponse hbResponse
-	if err := json.Unmarshal(response.Body, &parsedResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &parsedResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Error unmarshaling HB response: %s", err.Error()),
 		}}
diff --git a/adapters/eplanning/eplanning_test.go b/adapters/eplanning/eplanning_test.go
index 44ab91413d4..1d220184c6b 100644
--- a/adapters/eplanning/eplanning_test.go
+++ b/adapters/eplanning/eplanning_test.go
@@ -3,10 +3,10 @@ package eplanning
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/eplanning/eplanningtest/supplemental/bad-imp-ext.json b/adapters/eplanning/eplanningtest/supplemental/bad-imp-ext.json
index 475adfd95ac..572349a4e1d 100644
--- a/adapters/eplanning/eplanningtest/supplemental/bad-imp-ext.json
+++ b/adapters/eplanning/eplanningtest/supplemental/bad-imp-ext.json
@@ -19,7 +19,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "Ignoring imp id=test-imp-id, error while decoding impExt, err: json: cannot unmarshal number into Go struct field ExtImpEPlanning.ci of type string",
+      "value": "Ignoring imp id=test-imp-id, error while decoding impExt, err: cannot unmarshal openrtb_ext.ExtImpEPlanning.ClientID: expects \" or n, but found 1",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/eplanning/eplanningtest/supplemental/invalid-response-unmarshall-error.json b/adapters/eplanning/eplanningtest/supplemental/invalid-response-unmarshall-error.json
index e507648206d..3c1b08ae6bd 100644
--- a/adapters/eplanning/eplanningtest/supplemental/invalid-response-unmarshall-error.json
+++ b/adapters/eplanning/eplanningtest/supplemental/invalid-response-unmarshall-error.json
@@ -48,8 +48,8 @@
 
     "expectedMakeBidsErrors": [
       {
-        "value": "Error unmarshaling HB response: json: cannot unmarshal string into Go struct field (hbResponseAd\\.sp\\.a\\.w|hbResponseAd\\.w) of type uint64",
-        "comparison": "regex"
+        "value": "Error unmarshaling HB response: cannot unmarshal eplanning.hbResponseAd.Width: unexpected character",
+        "comparison": "startswith"
       }
     ]
   }
diff --git a/adapters/epom/epom.go b/adapters/epom/epom.go
index 0bee7c33e3d..82e44b409e3 100644
--- a/adapters/epom/epom.go
+++ b/adapters/epom/epom.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -86,7 +87,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/epom/epom_test.go b/adapters/epom/epom_test.go
index 4e31c2ab982..f90f2189d57 100644
--- a/adapters/epom/epom_test.go
+++ b/adapters/epom/epom_test.go
@@ -3,9 +3,9 @@ package epom
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/escalax/escalax.go b/adapters/escalax/escalax.go
index 87cec5e17a9..867524a9225 100644
--- a/adapters/escalax/escalax.go
+++ b/adapters/escalax/escalax.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -82,13 +83,13 @@ func (a *adapter) MakeRequests(openRTBRequest *openrtb2.BidRequest, reqInfo *ada
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtEscalax, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error parsing escalaxExt - " + err.Error(),
 		}
 	}
 	var escalaxExt openrtb_ext.ExtEscalax
-	if err := json.Unmarshal(bidderExt.Bidder, &escalaxExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &escalaxExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error parsing bidderExt - " + err.Error(),
 		}
@@ -113,7 +114,7 @@ func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/escalax/escalax_test.go b/adapters/escalax/escalax_test.go
index dd1200ff61b..c4424bb10a3 100644
--- a/adapters/escalax/escalax_test.go
+++ b/adapters/escalax/escalax_test.go
@@ -3,9 +3,9 @@ package escalax
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/escalax/escalaxtest/supplemental/invalid-bidder-ext-object.json b/adapters/escalax/escalaxtest/supplemental/invalid-bidder-ext-object.json
index 96a3037ced0..016fbd43490 100644
--- a/adapters/escalax/escalaxtest/supplemental/invalid-bidder-ext-object.json
+++ b/adapters/escalax/escalaxtest/supplemental/invalid-bidder-ext-object.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "Error parsing bidderExt - json: cannot unmarshal string into Go value of type openrtb_ext.ExtEscalax",
+      "value": "Error parsing bidderExt - expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/escalax/escalaxtest/supplemental/invalid-ext-object.json b/adapters/escalax/escalaxtest/supplemental/invalid-ext-object.json
index f3725c1005d..ccc32ed87a6 100644
--- a/adapters/escalax/escalaxtest/supplemental/invalid-ext-object.json
+++ b/adapters/escalax/escalaxtest/supplemental/invalid-ext-object.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "Error parsing escalaxExt - json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "Error parsing escalaxExt - expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/escalax/params_test.go b/adapters/escalax/params_test.go
index a61af936055..6e6036721ab 100644
--- a/adapters/escalax/params_test.go
+++ b/adapters/escalax/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/flipp/flipp.go b/adapters/flipp/flipp.go
index 55a3ce7b3e1..54bf2775354 100644
--- a/adapters/flipp/flipp.go
+++ b/adapters/flipp/flipp.go
@@ -13,10 +13,11 @@ import (
 	"github.com/prebid/go-gdpr/consentconstants"
 	"github.com/prebid/go-gdpr/vendorconsent"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/uuidutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/uuidutil"
 )
 
 const (
@@ -94,7 +95,7 @@ func (a *adapter) processImp(request *openrtb2.BidRequest, imp openrtb2.Imp) (*a
 	if err != nil {
 		return nil, fmt.Errorf("flipp params not found. %v", err)
 	}
-	err = json.Unmarshal(params, &flippExtParams)
+	err = jsonutil.Unmarshal(params, &flippExtParams)
 	if err != nil {
 		return nil, fmt.Errorf("unable to extract flipp params. %v", err)
 	}
@@ -191,7 +192,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var campaignResponseBody CampaignResponseBody
-	if err := json.Unmarshal(responseData.Body, &campaignResponseBody); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &campaignResponseBody); err != nil {
 		return nil, []error{err}
 	}
 
@@ -248,7 +249,7 @@ func paramsUserKeyPermitted(request *openrtb2.BidRequest) bool {
 		var extData struct {
 			TransmitEids *bool `json:"transmitEids,omitempty"`
 		}
-		if err := json.Unmarshal(request.Ext, &extData); err == nil {
+		if err := jsonutil.Unmarshal(request.Ext, &extData); err == nil {
 			if extData.TransmitEids != nil && !*extData.TransmitEids {
 				return false
 			}
diff --git a/adapters/flipp/flipp_params.go b/adapters/flipp/flipp_params.go
index 11f00560ba4..34d266a7d94 100644
--- a/adapters/flipp/flipp_params.go
+++ b/adapters/flipp/flipp_params.go
@@ -1,6 +1,6 @@
 package flipp
 
-import "github.com/prebid/prebid-server/v2/openrtb_ext"
+import "github.com/prebid/prebid-server/v3/openrtb_ext"
 
 type CampaignRequestBodyUser struct {
 	Key *string `json:"key"`
diff --git a/adapters/flipp/flipp_test.go b/adapters/flipp/flipp_test.go
index 10f2cfad5cb..8215dabe827 100644
--- a/adapters/flipp/flipp_test.go
+++ b/adapters/flipp/flipp_test.go
@@ -5,10 +5,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/flipp/flipptest/supplemental/bad-response.json b/adapters/flipp/flipptest/supplemental/bad-response.json
index f17320bded9..64920da0e55 100644
--- a/adapters/flipp/flipptest/supplemental/bad-response.json
+++ b/adapters/flipp/flipptest/supplemental/bad-response.json
@@ -82,7 +82,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type flipp.CampaignResponseBody",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/flipp/params_test.go b/adapters/flipp/params_test.go
index 37f1fda6324..24f30b0a624 100644
--- a/adapters/flipp/params_test.go
+++ b/adapters/flipp/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/freewheelssp/freewheelssp.go b/adapters/freewheelssp/freewheelssp.go
index df6f756bb65..111b05a60e2 100644
--- a/adapters/freewheelssp/freewheelssp.go
+++ b/adapters/freewheelssp/freewheelssp.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -20,14 +21,14 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 	for i := 0; i < len(request.Imp); i++ {
 		imp := &request.Imp[i]
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			return nil, []error{&errortypes.BadInput{
 				Message: fmt.Sprintf("Invalid imp.ext for impression index %d. Error Infomation: %s", i, err.Error()),
 			}}
 		}
 
 		var impExt openrtb_ext.ImpExtFreewheelSSP
-		if err := json.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
 			return nil, []error{&errortypes.BadInput{
 				Message: fmt.Sprintf("Invalid imp.ext for impression index %d. Error Infomation: %s", i, err.Error()),
 			}}
@@ -73,7 +74,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/freewheelssp/freewheelssp_test.go b/adapters/freewheelssp/freewheelssp_test.go
index ea1b5b7c980..ba5e6cf9aac 100644
--- a/adapters/freewheelssp/freewheelssp_test.go
+++ b/adapters/freewheelssp/freewheelssp_test.go
@@ -3,9 +3,9 @@ package freewheelssp
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/frvradn/frvradn.go b/adapters/frvradn/frvradn.go
index 7d71e13e374..5b21263b1aa 100644
--- a/adapters/frvradn/frvradn.go
+++ b/adapters/frvradn/frvradn.go
@@ -7,10 +7,11 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -90,7 +91,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -117,13 +118,13 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ImpExtFRVRAdn, error) {
 	var extImpBidder adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &extImpBidder); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &extImpBidder); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "missing ext",
 		}
 	}
 	var frvrAdnExt openrtb_ext.ImpExtFRVRAdn
-	if err := json.Unmarshal(extImpBidder.Bidder, &frvrAdnExt); err != nil {
+	if err := jsonutil.Unmarshal(extImpBidder.Bidder, &frvrAdnExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "missing ext.bidder",
 		}
@@ -139,7 +140,7 @@ func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ImpExtFRVRAdn, error) {
 
 func getBidMediaType(bid *openrtb2.Bid) (openrtb_ext.BidType, error) {
 	var extBid openrtb_ext.ExtBid
-	err := json.Unmarshal(bid.Ext, &extBid)
+	err := jsonutil.Unmarshal(bid.Ext, &extBid)
 	if err != nil {
 		return "", fmt.Errorf("unable to deserialize imp %v bid.ext", bid.ImpID)
 	}
diff --git a/adapters/frvradn/frvradn_test.go b/adapters/frvradn/frvradn_test.go
index 89f3dc50b42..514ef6c7123 100644
--- a/adapters/frvradn/frvradn_test.go
+++ b/adapters/frvradn/frvradn_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/frvradn/params_test.go b/adapters/frvradn/params_test.go
index 74a51b26fa2..83e1ba631ac 100644
--- a/adapters/frvradn/params_test.go
+++ b/adapters/frvradn/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/gamma/gamma.go b/adapters/gamma/gamma.go
index 56153aeedd6..66f99953fe2 100644
--- a/adapters/gamma/gamma.go
+++ b/adapters/gamma/gamma.go
@@ -9,10 +9,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/prebid/openrtb/v20/openrtb3"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type GammaAdapter struct {
@@ -62,7 +63,7 @@ func (a *GammaAdapter) makeRequest(request *openrtb2.BidRequest, imp openrtb2.Im
 	var errors []error
 
 	var bidderExt adapters.ExtImpBidder
-	err := json.Unmarshal(imp.Ext, &bidderExt)
+	err := jsonutil.Unmarshal(imp.Ext, &bidderExt)
 	if err != nil {
 		err = &errortypes.BadInput{
 			Message: "ext.bidder not provided",
@@ -71,7 +72,7 @@ func (a *GammaAdapter) makeRequest(request *openrtb2.BidRequest, imp openrtb2.Im
 		return nil, errors
 	}
 	var gammaExt openrtb_ext.ExtImpGamma
-	err = json.Unmarshal(bidderExt.Bidder, &gammaExt)
+	err = jsonutil.Unmarshal(bidderExt.Bidder, &gammaExt)
 	if err != nil {
 		err = &errortypes.BadInput{
 			Message: "ext.bidder.publisher not provided",
@@ -243,7 +244,7 @@ func (a *GammaAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRe
 	}
 
 	var gammaResp gammaBidResponse
-	if err := json.Unmarshal(response.Body, &gammaResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &gammaResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("bad server response: %d. ", err),
 		}}
diff --git a/adapters/gamma/gamma_test.go b/adapters/gamma/gamma_test.go
index 78cde32984e..9556e83dc0e 100644
--- a/adapters/gamma/gamma_test.go
+++ b/adapters/gamma/gamma_test.go
@@ -3,9 +3,9 @@ package gamma
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/gamma/gammatest/supplemental/bad-response-no-body.json b/adapters/gamma/gammatest/supplemental/bad-response-no-body.json
index 7d27e7c8160..86ba810e453 100644
--- a/adapters/gamma/gammatest/supplemental/bad-response-no-body.json
+++ b/adapters/gamma/gammatest/supplemental/bad-response-no-body.json
@@ -40,8 +40,8 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "bad server response: &{%!d(string=unexpected end of JSON input) 0}. ",
-      "comparison": "literal"
+      "value": "bad server response: &{%!d(string=expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/gamma/params_test.go b/adapters/gamma/params_test.go
index 7d2d211b054..d377b50c3dc 100644
--- a/adapters/gamma/params_test.go
+++ b/adapters/gamma/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/gamma.json
diff --git a/adapters/gamoshi/gamoshi.go b/adapters/gamoshi/gamoshi.go
index 13cf4d8b2fd..4ba302506f9 100644
--- a/adapters/gamoshi/gamoshi.go
+++ b/adapters/gamoshi/gamoshi.go
@@ -7,10 +7,11 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type GamoshiAdapter struct {
@@ -69,7 +70,7 @@ func (a *GamoshiAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *ada
 	errors := make([]error, 0, 1)
 
 	var bidderExt adapters.ExtImpBidder
-	err = json.Unmarshal(request.Imp[0].Ext, &bidderExt)
+	err = jsonutil.Unmarshal(request.Imp[0].Ext, &bidderExt)
 
 	if err != nil {
 		err = &errortypes.BadInput{
@@ -79,7 +80,7 @@ func (a *GamoshiAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *ada
 		return nil, errors
 	}
 	var gamoshiExt openrtb_ext.ExtImpGamoshi
-	err = json.Unmarshal(bidderExt.Bidder, &gamoshiExt)
+	err = jsonutil.Unmarshal(bidderExt.Bidder, &gamoshiExt)
 	if err != nil {
 		err = &errortypes.BadInput{
 			Message: "ext.bidder.supplyPartnerId not provided",
@@ -143,7 +144,7 @@ func (a *GamoshiAdapter) MakeBids(internalRequest *openrtb2.BidRequest, external
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("bad server response: %v. ", err),
 		}}
diff --git a/adapters/gamoshi/gamoshi_test.go b/adapters/gamoshi/gamoshi_test.go
index 4c787aeb700..aa20723b2db 100644
--- a/adapters/gamoshi/gamoshi_test.go
+++ b/adapters/gamoshi/gamoshi_test.go
@@ -3,9 +3,9 @@ package gamoshi
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamplesWithConfiguredURI(t *testing.T) {
diff --git a/adapters/gamoshi/gamoshitest/supplemental/bad-response-no-body.json b/adapters/gamoshi/gamoshitest/supplemental/bad-response-no-body.json
index 897844ff8e4..ddbcf435f46 100644
--- a/adapters/gamoshi/gamoshitest/supplemental/bad-response-no-body.json
+++ b/adapters/gamoshi/gamoshitest/supplemental/bad-response-no-body.json
@@ -51,8 +51,8 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "bad server response: unexpected end of JSON input. ",
-      "comparison": "literal"
+      "value": "bad server response: expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/gamoshi/params_test.go b/adapters/gamoshi/params_test.go
index 6fb5d9ee08b..429ed96ad8d 100644
--- a/adapters/gamoshi/params_test.go
+++ b/adapters/gamoshi/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/gamoshi.json
diff --git a/adapters/globalsun/globalsun.go b/adapters/globalsun/globalsun.go
index 533815f7403..a2b2dc5b9ab 100644
--- a/adapters/globalsun/globalsun.go
+++ b/adapters/globalsun/globalsun.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -100,7 +101,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/globalsun/globalsun_test.go b/adapters/globalsun/globalsun_test.go
index a2f33770486..e34805f68f3 100644
--- a/adapters/globalsun/globalsun_test.go
+++ b/adapters/globalsun/globalsun_test.go
@@ -3,9 +3,9 @@ package globalsun
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/globalsun/globalsuntest/supplemental/bad_response.json b/adapters/globalsun/globalsuntest/supplemental/bad_response.json
index c732ba92c67..5cc4a338ac3 100644
--- a/adapters/globalsun/globalsuntest/supplemental/bad_response.json
+++ b/adapters/globalsun/globalsuntest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/globalsun/params_test.go b/adapters/globalsun/params_test.go
index 87d6427ad8b..b4fe0ede7ad 100644
--- a/adapters/globalsun/params_test.go
+++ b/adapters/globalsun/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/gothamads/gothamads.go b/adapters/gothamads/gothamads.go
index b4fc8e64cdd..7b2f2471084 100644
--- a/adapters/gothamads/gothamads.go
+++ b/adapters/gothamads/gothamads.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -82,13 +83,13 @@ func (a *adapter) MakeRequests(openRTBRequest *openrtb2.BidRequest, reqInfo *ada
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtGothamAds, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 	var gothamadsExt openrtb_ext.ExtGothamAds
-	if err := json.Unmarshal(bidderExt.Bidder, &gothamadsExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &gothamadsExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -124,7 +125,7 @@ func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/gothamads/gothamads_test.go b/adapters/gothamads/gothamads_test.go
index 5dde1527f3f..b3433ae44a8 100644
--- a/adapters/gothamads/gothamads_test.go
+++ b/adapters/gothamads/gothamads_test.go
@@ -3,9 +3,9 @@ package gothamads
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/gothamads/gothamadstest/supplemental/invalid-bidder-ext-object.json b/adapters/gothamads/gothamadstest/supplemental/invalid-bidder-ext-object.json
index e412d39ca2c..ea4091e1489 100644
--- a/adapters/gothamads/gothamadstest/supplemental/invalid-bidder-ext-object.json
+++ b/adapters/gothamads/gothamadstest/supplemental/invalid-bidder-ext-object.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb_ext.ExtGothamAds",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/gothamads/gothamadstest/supplemental/invalid-gotham-ext-object.json b/adapters/gothamads/gothamadstest/supplemental/invalid-gotham-ext-object.json
index 6075e2a4b3d..294b6d1406c 100644
--- a/adapters/gothamads/gothamadstest/supplemental/invalid-gotham-ext-object.json
+++ b/adapters/gothamads/gothamadstest/supplemental/invalid-gotham-ext-object.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/gothamads/params_test.go b/adapters/gothamads/params_test.go
index 1db984321e1..ff61796deb9 100644
--- a/adapters/gothamads/params_test.go
+++ b/adapters/gothamads/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/grid/grid.go b/adapters/grid/grid.go
index 3f521ba5e0a..ad61058fed4 100644
--- a/adapters/grid/grid.go
+++ b/adapters/grid/grid.go
@@ -9,11 +9,12 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/maputil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/maputil"
 )
 
 type GridAdapter struct {
@@ -122,7 +123,7 @@ func buildConsolidatedKeywordsReqExt(openRTBUser, openRTBSite string, firstImpEx
 }
 func parseExtToMap(ext json.RawMessage) map[string]interface{} {
 	var root map[string]interface{}
-	if err := json.Unmarshal(ext, &root); err != nil {
+	if err := jsonutil.Unmarshal(ext, &root); err != nil {
 		return make(map[string]interface{})
 	}
 	return root
@@ -252,10 +253,10 @@ func processImp(imp *openrtb2.Imp) error {
 	// get the grid extension
 	var ext adapters.ExtImpBidder
 	var gridExt openrtb_ext.ExtImpGrid
-	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
 		return err
 	}
-	if err := json.Unmarshal(ext.Bidder, &gridExt); err != nil {
+	if err := jsonutil.Unmarshal(ext.Bidder, &gridExt); err != nil {
 		return err
 	}
 
@@ -271,7 +272,7 @@ func processImp(imp *openrtb2.Imp) error {
 
 func setImpExtData(imp openrtb2.Imp) openrtb2.Imp {
 	var ext ExtImp
-	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
 		return imp
 	}
 	if ext.Data != nil && ext.Data.AdServer != nil && ext.Data.AdServer.AdSlot != "" {
@@ -288,7 +289,7 @@ func fixNative(req json.RawMessage) (json.RawMessage, error) {
 	var gridReq map[string]interface{}
 	var parsedRequest map[string]interface{}
 
-	if err := json.Unmarshal(req, &gridReq); err != nil {
+	if err := jsonutil.Unmarshal(req, &gridReq); err != nil {
 		return req, nil
 	}
 	if imps, exists := maputil.ReadEmbeddedSlice(gridReq, "imp"); exists {
@@ -299,7 +300,7 @@ func fixNative(req json.RawMessage) (json.RawMessage, error) {
 					request, hasRequest := maputil.ReadEmbeddedString(native, "request")
 					if hasRequest {
 						delete(native, "request")
-						if err := json.Unmarshal([]byte(request), &parsedRequest); err == nil {
+						if err := jsonutil.Unmarshal([]byte(request), &parsedRequest); err == nil {
 							native["request_native"] = parsedRequest
 						} else {
 							native["request_native"] = request
@@ -387,7 +388,7 @@ func (a *GridAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalReq
 	}
 
 	var bidResp GridResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -437,7 +438,7 @@ func getBidMeta(ext json.RawMessage) (*openrtb_ext.ExtBidPrebidMeta, error) {
 	}
 	var bidExt GridBidExt
 
-	if err := json.Unmarshal(ext, &bidExt); err != nil {
+	if err := jsonutil.Unmarshal(ext, &bidExt); err != nil {
 		return nil, err
 	}
 	var bidMeta *openrtb_ext.ExtBidPrebidMeta
diff --git a/adapters/grid/grid_test.go b/adapters/grid/grid_test.go
index f35f0c66582..bf7bfe547fc 100644
--- a/adapters/grid/grid_test.go
+++ b/adapters/grid/grid_test.go
@@ -3,9 +3,9 @@ package grid
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/grid/gridtest/supplemental/bad_bidder_request.json b/adapters/grid/gridtest/supplemental/bad_bidder_request.json
index 347a3091a41..450d2c3f099 100644
--- a/adapters/grid/gridtest/supplemental/bad_bidder_request.json
+++ b/adapters/grid/gridtest/supplemental/bad_bidder_request.json
@@ -20,7 +20,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb_ext.ExtImpGrid",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     },
     {
diff --git a/adapters/grid/gridtest/supplemental/bad_ext_request.json b/adapters/grid/gridtest/supplemental/bad_ext_request.json
index 789db8504f8..cebaad0a800 100644
--- a/adapters/grid/gridtest/supplemental/bad_ext_request.json
+++ b/adapters/grid/gridtest/supplemental/bad_ext_request.json
@@ -18,7 +18,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     },
     {
diff --git a/adapters/grid/gridtest/supplemental/bad_response.json b/adapters/grid/gridtest/supplemental/bad_response.json
index a4c32c017c4..fb9c10a417a 100644
--- a/adapters/grid/gridtest/supplemental/bad_response.json
+++ b/adapters/grid/gridtest/supplemental/bad_response.json
@@ -57,7 +57,7 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type grid.GridResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/gumgum/gumgum.go b/adapters/gumgum/gumgum.go
index 4e44aacb82e..f6ab415516c 100644
--- a/adapters/gumgum/gumgum.go
+++ b/adapters/gumgum/gumgum.go
@@ -8,10 +8,11 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // adapter implements Bidder interface.
@@ -98,7 +99,7 @@ func (g *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 		}}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Bad server response: %d. ", err),
 		}}
@@ -127,7 +128,7 @@ func (g *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 func preprocess(imp *openrtb2.Imp) (*openrtb_ext.ExtImpGumGum, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		err = &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -135,7 +136,7 @@ func preprocess(imp *openrtb2.Imp) (*openrtb_ext.ExtImpGumGum, error) {
 	}
 
 	var gumgumExt openrtb_ext.ExtImpGumGum
-	if err := json.Unmarshal(bidderExt.Bidder, &gumgumExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &gumgumExt); err != nil {
 		err = &errortypes.BadInput{
 			Message: err.Error(),
 		}
diff --git a/adapters/gumgum/gumgum_test.go b/adapters/gumgum/gumgum_test.go
index 621b4a96b04..6386818803e 100644
--- a/adapters/gumgum/gumgum_test.go
+++ b/adapters/gumgum/gumgum_test.go
@@ -3,9 +3,9 @@ package gumgum
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/gumgum/params_test.go b/adapters/gumgum/params_test.go
index 11874cdbd61..514ab1d8c7f 100644
--- a/adapters/gumgum/params_test.go
+++ b/adapters/gumgum/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/huaweiads/huaweiads.go b/adapters/huaweiads/huaweiads.go
index bc346096437..144f5e22204 100644
--- a/adapters/huaweiads/huaweiads.go
+++ b/adapters/huaweiads/huaweiads.go
@@ -20,11 +20,12 @@ import (
 	nativeRequests "github.com/prebid/openrtb/v20/native1/request"
 	nativeResponse "github.com/prebid/openrtb/v20/native1/response"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 const huaweiAdxApiVersion = "3.4"
@@ -362,7 +363,7 @@ func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder
 	}
 
 	var huaweiAdsResponse huaweiAdsResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &huaweiAdsResponse); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &huaweiAdsResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Unable to parse server response",
 		}}
@@ -400,7 +401,7 @@ func getExtraInfo(v string) (ExtraInfo, error) {
 		return extraInfo, nil
 	}
 
-	if err := json.Unmarshal([]byte(v), &extraInfo); err != nil {
+	if err := jsonutil.Unmarshal([]byte(v), &extraInfo); err != nil {
 		return extraInfo, fmt.Errorf("invalid extra info: %v , pls check", err)
 	}
 
@@ -532,7 +533,7 @@ func getNativeFormat(adslot30 *adslot30, openRTBImp *openrtb2.Imp) error {
 	}
 
 	var nativePayload nativeRequests.Request
-	if err := json.Unmarshal(json.RawMessage(openRTBImp.Native.Request), &nativePayload); err != nil {
+	if err := jsonutil.Unmarshal(json.RawMessage(openRTBImp.Native.Request), &nativePayload); err != nil {
 		return err
 	}
 
@@ -856,7 +857,7 @@ func getDeviceIDFromUserExt(device *device, openRTBRequest *openrtb2.BidRequest)
 	}
 	if userObjExist {
 		var extUserDataHuaweiAds openrtb_ext.ExtUserDataHuaweiAds
-		if err := json.Unmarshal(openRTBRequest.User.Ext, &extUserDataHuaweiAds); err != nil {
+		if err := jsonutil.Unmarshal(openRTBRequest.User.Ext, &extUserDataHuaweiAds); err != nil {
 			return errors.New("get gaid from openrtb Device.IFA failed, and get device id failed: Unmarshal openRTBRequest.User.Ext -> extUserDataHuaweiAds. Error: " + err.Error())
 		}
 
@@ -954,7 +955,7 @@ func getReqGeoInfo(request *huaweiAdsRequest, openRTBRequest *openrtb2.BidReques
 func getReqConsentInfo(request *huaweiAdsRequest, openRTBRequest *openrtb2.BidRequest) {
 	if openRTBRequest.User != nil && openRTBRequest.User.Ext != nil {
 		var extUser openrtb_ext.ExtUser
-		if err := json.Unmarshal(openRTBRequest.User.Ext, &extUser); err != nil {
+		if err := jsonutil.Unmarshal(openRTBRequest.User.Ext, &extUser); err != nil {
 			return
 		}
 		request.Consent = extUser.Consent
@@ -964,10 +965,10 @@ func getReqConsentInfo(request *huaweiAdsRequest, openRTBRequest *openrtb2.BidRe
 func unmarshalExtImpHuaweiAds(openRTBImp *openrtb2.Imp) (*openrtb_ext.ExtImpHuaweiAds, error) {
 	var bidderExt adapters.ExtImpBidder
 	var huaweiAdsImpExt openrtb_ext.ExtImpHuaweiAds
-	if err := json.Unmarshal(openRTBImp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(openRTBImp.Ext, &bidderExt); err != nil {
 		return nil, errors.New("Unmarshal: openRTBImp.Ext -> bidderExt failed")
 	}
-	if err := json.Unmarshal(bidderExt.Bidder, &huaweiAdsImpExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &huaweiAdsImpExt); err != nil {
 		return nil, errors.New("Unmarshal: bidderExt.Bidder -> huaweiAdsImpExt failed")
 	}
 	if huaweiAdsImpExt.SlotId == "" {
@@ -1166,7 +1167,7 @@ func (a *adapter) extractAdmNative(adType int32, content *content, bidType openr
 	}
 
 	var nativePayload nativeRequests.Request
-	if err := json.Unmarshal(json.RawMessage(openrtb2Imp.Native.Request), &nativePayload); err != nil {
+	if err := jsonutil.Unmarshal(json.RawMessage(openrtb2Imp.Native.Request), &nativePayload); err != nil {
 		return "", 0, 0, err
 	}
 
diff --git a/adapters/huaweiads/huaweiads_test.go b/adapters/huaweiads/huaweiads_test.go
index 9e7d0b55364..c6fd17feaa7 100644
--- a/adapters/huaweiads/huaweiads_test.go
+++ b/adapters/huaweiads/huaweiads_test.go
@@ -3,9 +3,9 @@ package huaweiads
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/huaweiads/huaweiadstest/supplemental/missing_deviceid2.json b/adapters/huaweiads/huaweiadstest/supplemental/missing_deviceid2.json
index 133282239cf..30028dee2ba 100644
--- a/adapters/huaweiads/huaweiadstest/supplemental/missing_deviceid2.json
+++ b/adapters/huaweiads/huaweiadstest/supplemental/missing_deviceid2.json
@@ -68,7 +68,7 @@
   ],
   "expectedMakeRequestsErrors": [
     {
-      "value": "get gaid from openrtb Device.IFA failed, and get device id failed: Unmarshal openRTBRequest.User.Ext -> extUserDataHuaweiAds. Error: json: cannot unmarshal object into Go struct field ExtUserDataDeviceIdHuaweiAds.data.gaid of type []string",
+      "value": "get gaid from openrtb Device.IFA failed, and get device id failed: Unmarshal openRTBRequest.User.Ext -> extUserDataHuaweiAds. Error: cannot unmarshal openrtb_ext.ExtUserDataDeviceIdHuaweiAds.Gaid: decode slice: expect [ or n, but found {",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/huaweiads/params_test.go b/adapters/huaweiads/params_test.go
index c93c3c3ac55..9c4b5b36d25 100644
--- a/adapters/huaweiads/params_test.go
+++ b/adapters/huaweiads/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/imds/imds.go b/adapters/imds/imds.go
index 1fba38a0c6d..a5f53d60362 100644
--- a/adapters/imds/imds.go
+++ b/adapters/imds/imds.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const adapterVersion string = "pbs-go/1.0.0"
@@ -136,14 +137,14 @@ func (adapter *adapter) buildEndpointURL(params *openrtb_ext.ExtImpImds) (string
 
 func getExtImpObj(imp *openrtb2.Imp) (*openrtb_ext.ExtImpImds, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 
 	var imdsExt openrtb_ext.ExtImpImds
-	if err := json.Unmarshal(bidderExt.Bidder, &imdsExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &imdsExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -170,7 +171,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/imds/imds_test.go b/adapters/imds/imds_test.go
index 6e8165fbe6a..40a00462c13 100644
--- a/adapters/imds/imds_test.go
+++ b/adapters/imds/imds_test.go
@@ -3,9 +3,9 @@ package imds
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/imds/imdstest/supplemental/bad_response.json b/adapters/imds/imdstest/supplemental/bad_response.json
index 9860bc7ac0d..ff7c089e53d 100644
--- a/adapters/imds/imdstest/supplemental/bad_response.json
+++ b/adapters/imds/imdstest/supplemental/bad_response.json
@@ -65,7 +65,7 @@
   "expectedMakeBidsErrors": [
     {
       "comparison": "literal",
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse"
+      "value": "expect { or n, but found \""
     }
   ]
 }
diff --git a/adapters/imds/imdstest/supplemental/bad_seat_id.json b/adapters/imds/imdstest/supplemental/bad_seat_id.json
index 18630c592c4..5e4b879540d 100644
--- a/adapters/imds/imdstest/supplemental/bad_seat_id.json
+++ b/adapters/imds/imdstest/supplemental/bad_seat_id.json
@@ -24,7 +24,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal number into Go struct field ExtImpImds.seatId of type string",
+      "value": "cannot unmarshal openrtb_ext.ExtImpImds.SeatId: expects \" or n, but found 1",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/imds/params_test.go b/adapters/imds/params_test.go
index 740105c3183..d98fe04cd1f 100644
--- a/adapters/imds/params_test.go
+++ b/adapters/imds/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/imds.json
diff --git a/adapters/impactify/impactify.go b/adapters/impactify/impactify.go
index 960a29d6c9b..52f20ddd8dd 100644
--- a/adapters/impactify/impactify.go
+++ b/adapters/impactify/impactify.go
@@ -8,10 +8,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -47,7 +48,7 @@ func (a *adapter) MakeRequests(bidRequest *openrtb2.BidRequest, reqInfo *adapter
 		var impactifyExt ImpactifyExtBidder
 
 		var defaultExt DefaultExtBidder
-		err := json.Unmarshal(bidRequest.Imp[i].Ext, &defaultExt)
+		err := jsonutil.Unmarshal(bidRequest.Imp[i].Ext, &defaultExt)
 		if err != nil {
 			return nil, []error{&errortypes.BadInput{
 				Message: fmt.Sprintf("Unable to decode the imp ext : \"%s\"", bidRequest.Imp[i].ID),
@@ -128,7 +129,7 @@ func (a *adapter) MakeBids(
 
 	var openRtbBidResponse openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &openRtbBidResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &openRtbBidResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad server body response",
 		}}
diff --git a/adapters/impactify/impactify_test.go b/adapters/impactify/impactify_test.go
index b9518d5e2a3..2385c5c64ad 100644
--- a/adapters/impactify/impactify_test.go
+++ b/adapters/impactify/impactify_test.go
@@ -3,9 +3,9 @@ package impactify
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/impactify/params_test.go b/adapters/impactify/params_test.go
index 2fa8b24d627..589e0901726 100644
--- a/adapters/impactify/params_test.go
+++ b/adapters/impactify/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/improvedigital/improvedigital.go b/adapters/improvedigital/improvedigital.go
index 392e1040eaa..13534cc6ddf 100644
--- a/adapters/improvedigital/improvedigital.go
+++ b/adapters/improvedigital/improvedigital.go
@@ -9,19 +9,17 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
-	isRewardedInventory              = "is_rewarded_inventory"
-	stateRewardedInventoryEnable     = "1"
-	consentProvidersSettingsInputKey = "ConsentedProvidersSettings"
-	consentProvidersSettingsOutKey   = "consented_providers_settings"
-	consentedProvidersKey            = "consented_providers"
-	publisherEndpointParam           = "{PublisherId}"
+	isRewardedInventory          = "is_rewarded_inventory"
+	stateRewardedInventoryEnable = "1"
+	publisherEndpointParam       = "{PublisherId}"
 )
 
 type ImprovedigitalAdapter struct {
@@ -75,17 +73,6 @@ func (a *ImprovedigitalAdapter) makeRequest(request openrtb2.BidRequest, imp ope
 
 	request.Imp = []openrtb2.Imp{imp}
 
-	userExtAddtlConsent, err := a.getAdditionalConsentProvidersUserExt(request)
-	if err != nil {
-		return nil, err
-	}
-
-	if len(userExtAddtlConsent) > 0 {
-		userCopy := *request.User
-		userCopy.Ext = userExtAddtlConsent
-		request.User = &userCopy
-	}
-
 	reqJSON, err := json.Marshal(request)
 	if err != nil {
 		return nil, err
@@ -123,7 +110,7 @@ func (a *ImprovedigitalAdapter) MakeBids(internalRequest *openrtb2.BidRequest, e
 
 	var bidResp openrtb2.BidResponse
 	var impMap = make(map[string]openrtb2.Imp)
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -159,7 +146,7 @@ func (a *ImprovedigitalAdapter) MakeBids(internalRequest *openrtb2.BidRequest, e
 
 		if bid.Ext != nil {
 			var bidExt BidExt
-			err = json.Unmarshal(bid.Ext, &bidExt)
+			err = jsonutil.Unmarshal(bid.Ext, &bidExt)
 			if err != nil {
 				return nil, []error{err}
 			}
@@ -255,72 +242,9 @@ func isMultiFormatImp(imp openrtb2.Imp) bool {
 	return formatCount > 1
 }
 
-// This method responsible to clone request and convert additional consent providers string to array when additional consent provider found
-func (a *ImprovedigitalAdapter) getAdditionalConsentProvidersUserExt(request openrtb2.BidRequest) ([]byte, error) {
-	var cpStr string
-
-	// If user/user.ext not defined, no need to parse additional consent
-	if request.User == nil || request.User.Ext == nil {
-		return nil, nil
-	}
-
-	// Start validating additional consent
-	// Check key exist user.ext.ConsentedProvidersSettings
-	var userExtMap = make(map[string]json.RawMessage)
-	if err := json.Unmarshal(request.User.Ext, &userExtMap); err != nil {
-		return nil, err
-	}
-
-	cpsMapValue, cpsJSONFound := userExtMap[consentProvidersSettingsInputKey]
-	if !cpsJSONFound {
-		return nil, nil
-	}
-
-	// Check key exist user.ext.ConsentedProvidersSettings.consented_providers
-	var cpMap = make(map[string]json.RawMessage)
-	if err := json.Unmarshal(cpsMapValue, &cpMap); err != nil {
-		return nil, err
-	}
-
-	cpMapValue, cpJSONFound := cpMap[consentedProvidersKey]
-	if !cpJSONFound {
-		return nil, nil
-	}
-	// End validating additional consent
-
-	// Trim enclosing quotes after casting json.RawMessage to string
-	consentStr := strings.Trim((string)(cpMapValue), "\"")
-	// Split by ~ and take only the second string (if exists) as the consented providers spec
-	var consentStrParts = strings.Split(consentStr, "~")
-	if len(consentStrParts) < 2 {
-		return nil, nil
-	}
-	cpStr = strings.TrimSpace(consentStrParts[1])
-	if len(cpStr) == 0 {
-		return nil, nil
-	}
-
-	// Prepare consent providers string
-	cpStr = fmt.Sprintf("[%s]", strings.Replace(cpStr, ".", ",", -1))
-	cpMap[consentedProvidersKey] = json.RawMessage(cpStr)
-
-	cpJSON, err := json.Marshal(cpMap)
-	if err != nil {
-		return nil, err
-	}
-	userExtMap[consentProvidersSettingsOutKey] = cpJSON
-
-	extJson, err := json.Marshal(userExtMap)
-	if err != nil {
-		return nil, err
-	}
-
-	return extJson, nil
-}
-
 func getImpExtWithRewardedInventory(imp openrtb2.Imp) ([]byte, error) {
 	var ext = make(map[string]json.RawMessage)
-	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
 		return nil, err
 	}
 
@@ -330,7 +254,7 @@ func getImpExtWithRewardedInventory(imp openrtb2.Imp) ([]byte, error) {
 	}
 
 	var prebidMap = make(map[string]json.RawMessage)
-	if err := json.Unmarshal(prebidJSONValue, &prebidMap); err != nil {
+	if err := jsonutil.Unmarshal(prebidJSONValue, &prebidMap); err != nil {
 		return nil, err
 	}
 
@@ -351,7 +275,7 @@ func (a *ImprovedigitalAdapter) buildEndpointURL(imp openrtb2.Imp) string {
 	publisherEndpoint := ""
 	var impBidder ImpExtBidder
 
-	err := json.Unmarshal(imp.Ext, &impBidder)
+	err := jsonutil.Unmarshal(imp.Ext, &impBidder)
 	if err == nil && impBidder.Bidder.PublisherID != 0 {
 		publisherEndpoint = strconv.Itoa(impBidder.Bidder.PublisherID) + "/"
 	}
diff --git a/adapters/improvedigital/improvedigital_test.go b/adapters/improvedigital/improvedigital_test.go
index b89e03320fa..cd00aeaab7c 100644
--- a/adapters/improvedigital/improvedigital_test.go
+++ b/adapters/improvedigital/improvedigital_test.go
@@ -3,9 +3,9 @@ package improvedigital
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/improvedigital/improvedigitaltest/supplemental/addtl-consent-multi-tilda.json b/adapters/improvedigital/improvedigitaltest/supplemental/addtl-consent-multi-tilda.json
deleted file mode 100644
index 87007a6391c..00000000000
--- a/adapters/improvedigital/improvedigitaltest/supplemental/addtl-consent-multi-tilda.json
+++ /dev/null
@@ -1,95 +0,0 @@
-{
-  "mockBidRequest": {
-    "id": "addtl-consent-request-id",
-    "site": {
-      "page": "https://good.site/url"
-    },
-    "imp": [{
-      "id": "test-imp-id",
-      "banner": {
-        "format": [{
-          "w": 300,
-          "h": 250
-        }]
-      },
-      "ext": {
-        "bidder": {
-          "placementId": 13245
-        }
-      }
-    }],
-    "user": {
-      "ext":{"consent":"ABC","ConsentedProvidersSettings":{"consented_providers":"1~10.20.90~2"}}
-    }
-  },
-
-  "httpCalls": [{
-    "expectedRequest": {
-      "uri": "http://localhost/pbs",
-      "body": {
-        "id": "addtl-consent-request-id",
-        "site": {
-          "page": "https://good.site/url"
-        },
-        "imp": [{
-          "id": "test-imp-id",
-          "banner": {
-            "format": [{
-              "w": 300,
-              "h": 250
-            }]
-          },
-          "ext": {
-            "bidder": {
-              "placementId": 13245
-            }
-          }
-        }],
-        "user": {
-          "ext": {"consent": "ABC","ConsentedProvidersSettings":{"consented_providers":"1~10.20.90~2"},"consented_providers_settings": {"consented_providers": [10,20,90]}
-          }
-        }
-      },
-      "impIDs": ["test-imp-id"]
-    },
-    "mockResponse": {
-      "status": 200,
-      "body": {
-        "id": "addtl-consent-request-id",
-        "seatbid": [{
-          "seat": "improvedigital",
-          "bid": [{
-            "id": "randomid",
-            "impid": "test-imp-id",
-            "price": 0.500000,
-            "adid": "12345678",
-            "adm": "some-test-ad",
-            "cid": "987",
-            "crid": "12345678",
-            "h": 250,
-            "w": 300
-          }]
-        }],
-        "cur": "USD"
-      }
-    }
-  }],
-
-  "expectedBidResponses": [{
-    "currency": "USD",
-    "bids": [{
-      "bid": {
-        "id": "randomid",
-        "impid": "test-imp-id",
-        "price": 0.5,
-        "adm": "some-test-ad",
-        "adid": "12345678",
-        "cid": "987",
-        "crid": "12345678",
-        "w": 300,
-        "h": 250
-      },
-      "type": "banner"
-    }]
-  }]
-}
diff --git a/adapters/improvedigital/improvedigitaltest/supplemental/addtl-consent.json b/adapters/improvedigital/improvedigitaltest/supplemental/addtl-consent.json
deleted file mode 100644
index f3980e64423..00000000000
--- a/adapters/improvedigital/improvedigitaltest/supplemental/addtl-consent.json
+++ /dev/null
@@ -1,95 +0,0 @@
-{
-  "mockBidRequest": {
-    "id": "addtl-consent-request-id",
-    "site": {
-      "page": "https://good.site/url"
-    },
-    "imp": [{
-      "id": "test-imp-id",
-      "banner": {
-        "format": [{
-          "w": 300,
-          "h": 250
-        }]
-      },
-      "ext": {
-        "bidder": {
-          "placementId": 13245
-        }
-      }
-    }],
-    "user": {
-      "ext":{"consent":"ABC","ConsentedProvidersSettings":{"consented_providers":"1~10.20.90"}}
-    }
-  },
-
-  "httpCalls": [{
-    "expectedRequest": {
-      "uri": "http://localhost/pbs",
-      "body": {
-        "id": "addtl-consent-request-id",
-        "site": {
-          "page": "https://good.site/url"
-        },
-        "imp": [{
-          "id": "test-imp-id",
-          "banner": {
-            "format": [{
-              "w": 300,
-              "h": 250
-            }]
-          },
-          "ext": {
-            "bidder": {
-              "placementId": 13245
-            }
-          }
-        }],
-        "user": {
-          "ext": {"consent": "ABC","ConsentedProvidersSettings":{"consented_providers":"1~10.20.90"},"consented_providers_settings": {"consented_providers": [10,20,90]}
-          }
-        }
-      },
-      "impIDs":["test-imp-id"]
-    },
-    "mockResponse": {
-      "status": 200,
-      "body": {
-        "id": "addtl-consent-request-id",
-        "seatbid": [{
-          "seat": "improvedigital",
-          "bid": [{
-            "id": "randomid",
-            "impid": "test-imp-id",
-            "price": 0.500000,
-            "adid": "12345678",
-            "adm": "some-test-ad",
-            "cid": "987",
-            "crid": "12345678",
-            "h": 250,
-            "w": 300
-          }]
-        }],
-        "cur": "USD"
-      }
-    }
-  }],
-
-  "expectedBidResponses": [{
-    "currency": "USD",
-    "bids": [{
-      "bid": {
-        "id": "randomid",
-        "impid": "test-imp-id",
-        "price": 0.5,
-        "adm": "some-test-ad",
-        "adid": "12345678",
-        "cid": "987",
-        "crid": "12345678",
-        "w": 300,
-        "h": 250
-      },
-      "type": "banner"
-    }]
-  }]
-}
diff --git a/adapters/improvedigital/improvedigitaltest/supplemental/bad_response.json b/adapters/improvedigital/improvedigitaltest/supplemental/bad_response.json
index 5edafaaca68..6518f3c0938 100644
--- a/adapters/improvedigital/improvedigitaltest/supplemental/bad_response.json
+++ b/adapters/improvedigital/improvedigitaltest/supplemental/bad_response.json
@@ -57,7 +57,7 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/improvedigital/params_test.go b/adapters/improvedigital/params_test.go
index 3767c0316a5..abb1491fb03 100644
--- a/adapters/improvedigital/params_test.go
+++ b/adapters/improvedigital/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
@@ -36,7 +36,6 @@ func TestInvalidParams(t *testing.T) {
 var validParams = []string{
 	`{"placementId":13245}`,
 	`{"placementId":13245, "size": {"w":16, "h":9}}`,
-	`{"publisherId":13245, "placementKey": "slotA"}`,
 	`{"placementId":13245, "keyValues":{"target1":["foo"],"target2":["bar", "baz"]}}`,
 }
 
@@ -56,5 +55,5 @@ var invalidParams = []string{
 	`{"placementId": "1"}`,
 	`{"size": true}`,
 	`{"placementId": true, "size":"1234567"}`,
-	`{"placementId":13245, "publisherId":13245, "placementKey": "slotA"}`,
+	`{"publisherId":13245, "placementKey": "slotA"}`,
 }
diff --git a/adapters/infoawarebidder.go b/adapters/infoawarebidder.go
index 9361e06fee0..e7b82c96a31 100644
--- a/adapters/infoawarebidder.go
+++ b/adapters/infoawarebidder.go
@@ -4,9 +4,9 @@ import (
 	"fmt"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // InfoAwareBidder wraps a Bidder to ensure all requests abide by the capabilities and
diff --git a/adapters/infoawarebidder_test.go b/adapters/infoawarebidder_test.go
index 7476cc920c9..4eb2dbffe30 100644
--- a/adapters/infoawarebidder_test.go
+++ b/adapters/infoawarebidder_test.go
@@ -5,10 +5,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
diff --git a/adapters/infytv/infytv.go b/adapters/infytv/infytv.go
index a5d325e329f..1d0c70123a1 100644
--- a/adapters/infytv/infytv.go
+++ b/adapters/infytv/infytv.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -64,7 +65,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Bad response, %s", err),
 		}}
diff --git a/adapters/infytv/infytv_test.go b/adapters/infytv/infytv_test.go
index 80527bbc4ae..85a4dd4b9bc 100644
--- a/adapters/infytv/infytv_test.go
+++ b/adapters/infytv/infytv_test.go
@@ -3,9 +3,9 @@ package infytv
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/infytv/infytvtest/supplemental/bad-response.json b/adapters/infytv/infytvtest/supplemental/bad-response.json
index 01d560cf5e7..05134ef403f 100644
--- a/adapters/infytv/infytvtest/supplemental/bad-response.json
+++ b/adapters/infytv/infytvtest/supplemental/bad-response.json
@@ -195,7 +195,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "Bad response, json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "Bad response, expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/infytv/params_test.go b/adapters/infytv/params_test.go
index 53230cbf263..671a5a4e713 100644
--- a/adapters/infytv/params_test.go
+++ b/adapters/infytv/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/inmobi/inmobi.go b/adapters/inmobi/inmobi.go
index eb69bdf3ec2..f79151bea87 100644
--- a/adapters/inmobi/inmobi.go
+++ b/adapters/inmobi/inmobi.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type InMobiAdapter struct {
@@ -69,7 +70,7 @@ func (a *InMobiAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 	}
 
 	var serverBidResponse openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &serverBidResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &serverBidResponse); err != nil {
 		return nil, []error{err}
 	}
 
@@ -93,14 +94,14 @@ func (a *InMobiAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 
 func preprocess(imp *openrtb2.Imp) error {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 
 	var inMobiExt openrtb_ext.ExtImpInMobi
-	if err := json.Unmarshal(bidderExt.Bidder, &inMobiExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &inMobiExt); err != nil {
 		return &errortypes.BadInput{Message: "bad InMobi bidder ext"}
 	}
 
diff --git a/adapters/inmobi/inmobi_test.go b/adapters/inmobi/inmobi_test.go
index 40e77f5fbc3..89884a8ddeb 100644
--- a/adapters/inmobi/inmobi_test.go
+++ b/adapters/inmobi/inmobi_test.go
@@ -3,9 +3,9 @@ package inmobi
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/interactiveoffers/interactiveoffers.go b/adapters/interactiveoffers/interactiveoffers.go
index 53286aa9cc7..6eaee7a9785 100644
--- a/adapters/interactiveoffers/interactiveoffers.go
+++ b/adapters/interactiveoffers/interactiveoffers.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -21,14 +22,14 @@ type adapter struct {
 func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
 	var errors []error
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
 		errors = append(errors, &errortypes.BadInput{
 			Message: err.Error(),
 		})
 		return nil, errors
 	}
 	var ioExt *openrtb_ext.ExtImpInteractiveoffers
-	if err := json.Unmarshal(bidderExt.Bidder, &ioExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &ioExt); err != nil {
 		errors = append(errors, &errortypes.BadInput{
 			Message: err.Error(),
 		})
@@ -76,7 +77,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/interactiveoffers/interactiveoffers_test.go b/adapters/interactiveoffers/interactiveoffers_test.go
index daf83869a95..df116c60a5d 100644
--- a/adapters/interactiveoffers/interactiveoffers_test.go
+++ b/adapters/interactiveoffers/interactiveoffers_test.go
@@ -3,9 +3,9 @@ package interactiveoffers
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/interactiveoffers/interactiveofferstest/supplemental/wrongjsonresponse.json b/adapters/interactiveoffers/interactiveofferstest/supplemental/wrongjsonresponse.json
index 3f087a0d79c..750c0a4bb68 100644
--- a/adapters/interactiveoffers/interactiveofferstest/supplemental/wrongjsonresponse.json
+++ b/adapters/interactiveoffers/interactiveofferstest/supplemental/wrongjsonresponse.json
@@ -54,7 +54,7 @@
   "expectedBidResponses": [],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/interactiveoffers/params_test.go b/adapters/interactiveoffers/params_test.go
index 8f14a51b512..631d8f44aed 100644
--- a/adapters/interactiveoffers/params_test.go
+++ b/adapters/interactiveoffers/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/invibes/invibes.go b/adapters/invibes/invibes.go
index ecb3ebae4e8..4657be29745 100644
--- a/adapters/invibes/invibes.go
+++ b/adapters/invibes/invibes.go
@@ -10,12 +10,13 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const adapterVersion = "prebid_1.0.0"
@@ -100,14 +101,14 @@ func (a *InvibesAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *ada
 
 	for _, imp := range request.Imp {
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			tempErrors = append(tempErrors, &errortypes.BadInput{
 				Message: "Error parsing bidderExt object",
 			})
 			continue
 		}
 		var invibesExt openrtb_ext.ExtImpInvibes
-		if err := json.Unmarshal(bidderExt.Bidder, &invibesExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &invibesExt); err != nil {
 			tempErrors = append(tempErrors, &errortypes.BadInput{
 				Message: "Error parsing invibesExt parameters",
 			})
@@ -159,14 +160,14 @@ func readGDPR(request *openrtb2.BidRequest) (bool, string) {
 	consentString := ""
 	if request.User != nil {
 		var extUser openrtb_ext.ExtUser
-		if err := json.Unmarshal(request.User.Ext, &extUser); err == nil {
+		if err := jsonutil.Unmarshal(request.User.Ext, &extUser); err == nil {
 			consentString = extUser.Consent
 		}
 	}
 	gdprApplies := true
 	var extRegs openrtb_ext.ExtRegs
 	if request.Regs != nil {
-		if err := json.Unmarshal(request.Regs.Ext, &extRegs); err == nil {
+		if err := jsonutil.Unmarshal(request.Regs.Ext, &extRegs); err == nil {
 			if extRegs.GDPR != nil {
 				gdprApplies = (*extRegs.GDPR == 1)
 			}
@@ -315,7 +316,7 @@ func (a *InvibesAdapter) MakeBids(
 	}
 
 	bidResponse := BidServerBidderResponse{}
-	if err := json.Unmarshal(response.Body, &bidResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResponse); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/invibes/invibes_test.go b/adapters/invibes/invibes_test.go
index e09837764f9..be8dda3ffdf 100644
--- a/adapters/invibes/invibes_test.go
+++ b/adapters/invibes/invibes_test.go
@@ -3,9 +3,9 @@ package invibes
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/invibes/params_test.go b/adapters/invibes/params_test.go
index 88e08d1dc80..48be52c4ba0 100644
--- a/adapters/invibes/params_test.go
+++ b/adapters/invibes/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/iqx/iqx.go b/adapters/iqx/iqx.go
index 23da6bc8947..c3519b10b1a 100644
--- a/adapters/iqx/iqx.go
+++ b/adapters/iqx/iqx.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type bidType struct {
@@ -41,14 +42,14 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 
 func (a *adapter) buildEndpointFromRequest(imp *openrtb2.Imp) (string, error) {
 	var impExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize bidder impression extension: %v", err),
 		}
 	}
 
 	var iqzonexExt openrtb_ext.ExtIQX
-	if err := json.Unmarshal(impExt.Bidder, &iqzonexExt); err != nil {
+	if err := jsonutil.Unmarshal(impExt.Bidder, &iqzonexExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize IQZonex extension: %v", err),
 		}
@@ -116,7 +117,7 @@ func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/iqx/iqxtest_test.go b/adapters/iqx/iqxtest_test.go
index 7385d37af91..190560d6deb 100644
--- a/adapters/iqx/iqxtest_test.go
+++ b/adapters/iqx/iqxtest_test.go
@@ -3,9 +3,9 @@ package iqx
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/iqx/iqzonextest/supplemental/bad-response.json b/adapters/iqx/iqzonextest/supplemental/bad-response.json
index a5cc1f2aeae..a0f8dc8c960 100644
--- a/adapters/iqx/iqzonextest/supplemental/bad-response.json
+++ b/adapters/iqx/iqzonextest/supplemental/bad-response.json
@@ -99,7 +99,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/iqx/iqzonextest/supplemental/invalid-ext-bidder-object.json b/adapters/iqx/iqzonextest/supplemental/invalid-ext-bidder-object.json
index 2f124a8cf3b..22612977a87 100644
--- a/adapters/iqx/iqzonextest/supplemental/invalid-ext-bidder-object.json
+++ b/adapters/iqx/iqzonextest/supplemental/invalid-ext-bidder-object.json
@@ -42,7 +42,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize IQZonex extension: json: cannot unmarshal array into Go value of type openrtb_ext.ExtIQX",
+      "value": "Failed to deserialize IQZonex extension: expect { or n, but found [",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/iqx/iqzonextest/supplemental/invalid-ext-object.json b/adapters/iqx/iqzonextest/supplemental/invalid-ext-object.json
index aa215eb3e34..16cf58bbe54 100644
--- a/adapters/iqx/iqzonextest/supplemental/invalid-ext-object.json
+++ b/adapters/iqx/iqzonextest/supplemental/invalid-ext-object.json
@@ -40,7 +40,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize bidder impression extension: json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "Failed to deserialize bidder impression extension: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/iqx/params_test.go b/adapters/iqx/params_test.go
index 23c4d007acb..4b687728b2b 100644
--- a/adapters/iqx/params_test.go
+++ b/adapters/iqx/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/iqzone/iqzone.go b/adapters/iqzone/iqzone.go
index db570707ba8..9becbfbb89b 100644
--- a/adapters/iqzone/iqzone.go
+++ b/adapters/iqzone/iqzone.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -35,10 +36,10 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var iqzoneExt openrtb_ext.ImpExtIQZone
 
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			return nil, append(errs, err)
 		}
-		if err = json.Unmarshal(bidderExt.Bidder, &iqzoneExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &iqzoneExt); err != nil {
 			return nil, append(errs, err)
 		}
 
@@ -104,7 +105,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/iqzone/iqzone_test.go b/adapters/iqzone/iqzone_test.go
index c5713953f40..37ba833f502 100644
--- a/adapters/iqzone/iqzone_test.go
+++ b/adapters/iqzone/iqzone_test.go
@@ -3,9 +3,9 @@ package iqzone
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/iqzone/iqzonetest/supplemental/bad_response.json b/adapters/iqzone/iqzonetest/supplemental/bad_response.json
index 6bae2a728a7..03d00712772 100644
--- a/adapters/iqzone/iqzonetest/supplemental/bad_response.json
+++ b/adapters/iqzone/iqzonetest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/iqzone/params_test.go b/adapters/iqzone/params_test.go
index 2c6bb223845..4d3aa165a65 100644
--- a/adapters/iqzone/params_test.go
+++ b/adapters/iqzone/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/ix/ix.go b/adapters/ix/ix.go
index 86f71f58c76..48becbdcf4c 100644
--- a/adapters/ix/ix.go
+++ b/adapters/ix/ix.go
@@ -7,12 +7,13 @@ import (
 	"sort"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
-	"github.com/prebid/prebid-server/v2/version"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/version"
 
 	"github.com/prebid/openrtb/v20/native1"
 	native1response "github.com/prebid/openrtb/v20/native1/response"
@@ -155,12 +156,12 @@ func setPublisherId(requestCopy *openrtb2.BidRequest, uniqueSiteIDs map[string]s
 
 func unmarshalToIxExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpIx, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, err
 	}
 
 	var ixExt openrtb_ext.ExtImpIx
-	if err := json.Unmarshal(bidderExt.Bidder, &ixExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &ixExt); err != nil {
 		return nil, err
 	}
 
@@ -203,7 +204,7 @@ func (a *IxAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalReque
 	}
 
 	var bidResponse openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("JSON parsing error: %v", err),
 		}}
@@ -243,7 +244,7 @@ func (a *IxAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalReque
 			var bidExtVideo *openrtb_ext.ExtBidPrebidVideo
 			var bidExt openrtb_ext.ExtBid
 			if bidType == openrtb_ext.BidTypeVideo {
-				unmarshalExtErr := json.Unmarshal(bid.Ext, &bidExt)
+				unmarshalExtErr := jsonutil.Unmarshal(bid.Ext, &bidExt)
 				if unmarshalExtErr == nil && bidExt.Prebid != nil && bidExt.Prebid.Video != nil {
 					bidExtVideo = &openrtb_ext.ExtBidPrebidVideo{
 						Duration: bidExt.Prebid.Video.Duration,
@@ -256,7 +257,7 @@ func (a *IxAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalReque
 
 			var bidNative1v1 *Native11Wrapper
 			if bidType == openrtb_ext.BidTypeNative {
-				err := json.Unmarshal([]byte(bid.AdM), &bidNative1v1)
+				err := jsonutil.Unmarshal([]byte(bid.AdM), &bidNative1v1)
 				if err == nil && len(bidNative1v1.Native.EventTrackers) > 0 {
 					mergeNativeImpTrackers(&bidNative1v1.Native)
 					if json, err := marshalJsonWithoutUnicode(bidNative1v1); err == nil {
@@ -267,7 +268,7 @@ func (a *IxAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalReque
 
 			var bidNative1v2 *native1response.Response
 			if bidType == openrtb_ext.BidTypeNative {
-				err := json.Unmarshal([]byte(bid.AdM), &bidNative1v2)
+				err := jsonutil.Unmarshal([]byte(bid.AdM), &bidNative1v2)
 				if err == nil && len(bidNative1v2.EventTrackers) > 0 {
 					mergeNativeImpTrackers(bidNative1v2)
 					if json, err := marshalJsonWithoutUnicode(bidNative1v2); err == nil {
@@ -286,7 +287,7 @@ func (a *IxAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalReque
 
 	if bidResponse.Ext != nil {
 		var bidRespExt ixRespExt
-		if err := json.Unmarshal(bidResponse.Ext, &bidRespExt); err != nil {
+		if err := jsonutil.Unmarshal(bidResponse.Ext, &bidRespExt); err != nil {
 			return nil, append(errs, err)
 		}
 
@@ -321,7 +322,7 @@ func getMediaTypeForBid(bid openrtb2.Bid, impMediaTypeReq map[string]openrtb_ext
 
 	if bid.Ext != nil {
 		var bidExt openrtb_ext.ExtBid
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil && bidExt.Prebid != nil {
 			prebidType := string(bidExt.Prebid.Type)
 			if prebidType != "" {
@@ -405,7 +406,7 @@ func extractVersionWithoutCommitHash(ver string) string {
 func setIxDiagIntoExtRequest(request *openrtb2.BidRequest, ixDiag *IxDiag, ver string) error {
 	extRequest := &ExtRequest{}
 	if request.Ext != nil {
-		if err := json.Unmarshal(request.Ext, &extRequest); err != nil {
+		if err := jsonutil.Unmarshal(request.Ext, &extRequest); err != nil {
 			return err
 		}
 	}
@@ -422,7 +423,7 @@ func setIxDiagIntoExtRequest(request *openrtb2.BidRequest, ixDiag *IxDiag, ver s
 	if *ixDiag != (IxDiag{}) {
 		extRequest := &ExtRequest{}
 		if request.Ext != nil {
-			if err := json.Unmarshal(request.Ext, &extRequest); err != nil {
+			if err := jsonutil.Unmarshal(request.Ext, &extRequest); err != nil {
 				return err
 			}
 		}
@@ -444,7 +445,7 @@ func moveSid(imp *openrtb2.Imp, ixExt *openrtb_ext.ExtImpIx) error {
 
 	if ixExt.Sid != "" {
 		var m map[string]interface{}
-		if err := json.Unmarshal(imp.Ext, &m); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &m); err != nil {
 			return err
 		}
 		m["sid"] = ixExt.Sid
diff --git a/adapters/ix/ix_test.go b/adapters/ix/ix_test.go
index 88848db81e3..48b9796bbb5 100644
--- a/adapters/ix/ix_test.go
+++ b/adapters/ix/ix_test.go
@@ -4,11 +4,11 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 
 	"github.com/prebid/openrtb/v20/adcom1"
diff --git a/adapters/ix/ixtest/supplemental/bad-ext-bidder.json b/adapters/ix/ixtest/supplemental/bad-ext-bidder.json
index e08da1e1a84..87378ca3ce1 100644
--- a/adapters/ix/ixtest/supplemental/bad-ext-bidder.json
+++ b/adapters/ix/ixtest/supplemental/bad-ext-bidder.json
@@ -15,7 +15,7 @@
     },
     "expectedMakeRequestsErrors": [
         {
-            "value": "json: cannot unmarshal number into Go struct field ExtImpBidder.prebid of type openrtb_ext.ExtImpPrebid",
+            "value": "cannot unmarshal adapters.ExtImpBidder.Prebid: expect { or n, but found 1",
             "comparison": "literal"
         }
     ]
diff --git a/adapters/ix/ixtest/supplemental/bad-ext-ix.json b/adapters/ix/ixtest/supplemental/bad-ext-ix.json
index a9a0383b1a1..a9d533b9172 100644
--- a/adapters/ix/ixtest/supplemental/bad-ext-ix.json
+++ b/adapters/ix/ixtest/supplemental/bad-ext-ix.json
@@ -14,8 +14,8 @@
     },
     "expectedMakeRequestsErrors": [
         {
-            "value": "unexpected end of JSON input",
-            "comparison": "literal"
+            "value": "expect { or n, but found",
+            "comparison": "startswith"
         }
     ]
 }
diff --git a/adapters/ix/ixtest/supplemental/bad-fledge.json b/adapters/ix/ixtest/supplemental/bad-fledge.json
index 42459148e0a..d835d40a33f 100644
--- a/adapters/ix/ixtest/supplemental/bad-fledge.json
+++ b/adapters/ix/ixtest/supplemental/bad-fledge.json
@@ -128,7 +128,7 @@
     ],
     "expectedMakeBidsErrors": [
         {
-            "value": "json: cannot unmarshal number into Go struct field auctionConfig.protectedAudienceAuctionConfigs.bidId of type string",
+            "value": "cannot unmarshal ix.auctionConfig.BidId: expects \" or n, but found 1",
             "comparison": "literal"
         }
     ]
diff --git a/adapters/ix/ixtest/supplemental/bad-response-body.json b/adapters/ix/ixtest/supplemental/bad-response-body.json
index eae3fbdb36b..e416123023f 100644
--- a/adapters/ix/ixtest/supplemental/bad-response-body.json
+++ b/adapters/ix/ixtest/supplemental/bad-response-body.json
@@ -59,7 +59,7 @@
     ],
     "expectedMakeBidsErrors": [
         {
-            "value": "JSON parsing error: json: cannot unmarshal number into Go struct field BidResponse.id of type string",
+            "value": "JSON parsing error: cannot unmarshal openrtb2.BidResponse.ID: expects \" or n, but found 1",
             "comparison": "literal"
         }
     ]
diff --git a/adapters/ix/ixtest/supplemental/multi-imp-requests-error.json b/adapters/ix/ixtest/supplemental/multi-imp-requests-error.json
index 7b43ca7961c..6613dce7169 100644
--- a/adapters/ix/ixtest/supplemental/multi-imp-requests-error.json
+++ b/adapters/ix/ixtest/supplemental/multi-imp-requests-error.json
@@ -183,7 +183,7 @@
     ],
     "expectedMakeRequestsErrors": [
         {
-            "value": "json: cannot unmarshal number into Go struct field ExtImpIx.sid of type string",
+            "value": "cannot unmarshal openrtb_ext.ExtImpIx.Sid: expects \" or n, but found 1",
             "comparison": "literal"
         }
     ]
diff --git a/adapters/ix/params_test.go b/adapters/ix/params_test.go
index ba426c0b27b..90d591b50c0 100644
--- a/adapters/ix/params_test.go
+++ b/adapters/ix/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/jixie/jixie.go b/adapters/jixie/jixie.go
index 7079e403880..d0411d1e5ef 100644
--- a/adapters/jixie/jixie.go
+++ b/adapters/jixie/jixie.go
@@ -7,10 +7,11 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -102,7 +103,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Unable to unpackage bid response. Error: %s", err.Error()),
 		}}
diff --git a/adapters/jixie/jixie_test.go b/adapters/jixie/jixie_test.go
index dff2b3574d3..6fe4fa24cef 100644
--- a/adapters/jixie/jixie_test.go
+++ b/adapters/jixie/jixie_test.go
@@ -3,9 +3,9 @@ package jixie
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/jixie/params_test.go b/adapters/jixie/params_test.go
index cbcdbe959de..653f3f86e12 100644
--- a/adapters/jixie/params_test.go
+++ b/adapters/jixie/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/kargo/kargo.go b/adapters/kargo/kargo.go
index e6a06dea179..da12ef68ca3 100644
--- a/adapters/kargo/kargo.go
+++ b/adapters/kargo/kargo.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -59,7 +60,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -79,7 +80,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 
 func getMediaTypeForBid(ext json.RawMessage) openrtb_ext.BidType {
 	var impExt kargoExt
-	if err := json.Unmarshal(ext, &impExt); err == nil {
+	if err := jsonutil.Unmarshal(ext, &impExt); err == nil {
 		switch impExt.MediaType {
 		case string(openrtb_ext.BidTypeVideo):
 			return openrtb_ext.BidTypeVideo
diff --git a/adapters/kargo/kargo_test.go b/adapters/kargo/kargo_test.go
index f2ceb46f643..0e7eb83bc13 100644
--- a/adapters/kargo/kargo_test.go
+++ b/adapters/kargo/kargo_test.go
@@ -3,9 +3,9 @@ package kargo
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/kargo/params_test.go b/adapters/kargo/params_test.go
index 9907d67116c..91b46fbc4e7 100644
--- a/adapters/kargo/params_test.go
+++ b/adapters/kargo/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/kayzen/kayzen.go b/adapters/kayzen/kayzen.go
index f3b8153f97f..680362603ef 100644
--- a/adapters/kayzen/kayzen.go
+++ b/adapters/kayzen/kayzen.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -76,13 +77,13 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 
 func (a *adapter) getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtKayzen, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Bidder extension not provided or can't be unmarshalled",
 		}
 	}
 	var kayzenExt openrtb_ext.ExtKayzen
-	if err := json.Unmarshal(bidderExt.Bidder, &kayzenExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &kayzenExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error while unmarshaling bidder extension",
 		}
@@ -118,7 +119,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/kayzen/kayzen_test.go b/adapters/kayzen/kayzen_test.go
index a2cc98a7798..6b3776ddbae 100644
--- a/adapters/kayzen/kayzen_test.go
+++ b/adapters/kayzen/kayzen_test.go
@@ -3,9 +3,9 @@ package kayzen
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/kayzen/params_test.go b/adapters/kayzen/params_test.go
index bd03e23df5b..647f77d1349 100644
--- a/adapters/kayzen/params_test.go
+++ b/adapters/kayzen/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/kidoz/kidoz.go b/adapters/kidoz/kidoz.go
index b0406b29e00..88628085ef2 100644
--- a/adapters/kidoz/kidoz.go
+++ b/adapters/kidoz/kidoz.go
@@ -7,10 +7,11 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type KidozAdapter struct {
@@ -56,7 +57,7 @@ func (a *KidozAdapter) MakeRequests(request *openrtb2.BidRequest, _ *adapters.Ex
 			continue
 		}
 		var bidderExt adapters.ExtImpBidder
-		err := json.Unmarshal(impression.Ext, &bidderExt)
+		err := jsonutil.Unmarshal(impression.Ext, &bidderExt)
 		if err != nil {
 			errs = append(errs, err)
 			continue
@@ -66,7 +67,7 @@ func (a *KidozAdapter) MakeRequests(request *openrtb2.BidRequest, _ *adapters.Ex
 			continue
 		}
 		var impressionExt openrtb_ext.ExtImpKidoz
-		err = json.Unmarshal(bidderExt.Bidder, &impressionExt)
+		err = jsonutil.Unmarshal(bidderExt.Bidder, &impressionExt)
 		if err != nil {
 			errs = append(errs, err)
 			continue
@@ -131,7 +132,7 @@ func (a *KidozAdapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.Reques
 	}
 
 	var bidResponse openrtb2.BidResponse
-	err := json.Unmarshal(responseData.Body, &bidResponse)
+	err := jsonutil.Unmarshal(responseData.Body, &bidResponse)
 	if err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
diff --git a/adapters/kidoz/kidoz_test.go b/adapters/kidoz/kidoz_test.go
index 9a36764ee97..89235185592 100644
--- a/adapters/kidoz/kidoz_test.go
+++ b/adapters/kidoz/kidoz_test.go
@@ -6,10 +6,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -83,7 +83,7 @@ func TestMakeBids(t *testing.T) {
 		resp, errs := bidder.MakeBids(request, requestData, responseData)
 		// cant assert message its different on different versions of go
 		assert.Equal(t, 1, len(errs))
-		assert.Contains(t, errs[0].Error(), "JSON")
+		assert.Contains(t, errs[0].Error(), "expect { or n, but found")
 		assert.Nil(t, resp)
 	})
 }
diff --git a/adapters/kidoz/kidoztest/supplemental/bidder-marshal.json b/adapters/kidoz/kidoztest/supplemental/bidder-marshal.json
index 8a8a5e76844..94d189db370 100644
--- a/adapters/kidoz/kidoztest/supplemental/bidder-marshal.json
+++ b/adapters/kidoz/kidoztest/supplemental/bidder-marshal.json
@@ -22,7 +22,7 @@
 	"expectedBidResponses": [],
 	"expectedMakeRequestsErrors": [
 		{
-			"value": "json: cannot unmarshal string into Go value of type openrtb_ext.ExtImpKidoz",
+			"value": "expect { or n, but found \"",
 			"comparison": "literal"
 		}
 	],
diff --git a/adapters/kidoz/kidoztest/supplemental/ext-marshal.json b/adapters/kidoz/kidoztest/supplemental/ext-marshal.json
index eaab459461a..4aefbdac2e8 100644
--- a/adapters/kidoz/kidoztest/supplemental/ext-marshal.json
+++ b/adapters/kidoz/kidoztest/supplemental/ext-marshal.json
@@ -20,7 +20,7 @@
 	"expectedBidResponses": [],
 	"expectedMakeRequestsErrors": [
 		{
-			"value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+			"value": "expect { or n, but found \"",
 			"comparison": "literal"
 		}
 	],
diff --git a/adapters/kidoz/params_test.go b/adapters/kidoz/params_test.go
index fad4e681288..1dfa3e8955d 100644
--- a/adapters/kidoz/params_test.go
+++ b/adapters/kidoz/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/kiviads/kiviads.go b/adapters/kiviads/kiviads.go
index a102234e860..ad5dcb58e2b 100644
--- a/adapters/kiviads/kiviads.go
+++ b/adapters/kiviads/kiviads.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -44,10 +45,10 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var kiviadsExt openrtb_ext.ImpExtKiviads
 
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			return nil, []error{err}
 		}
-		if err = json.Unmarshal(bidderExt.Bidder, &kiviadsExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &kiviadsExt); err != nil {
 			return nil, []error{err}
 		}
 
@@ -111,7 +112,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/kiviads/kiviads_test.go b/adapters/kiviads/kiviads_test.go
index a6725234e6a..dd83e0d1773 100644
--- a/adapters/kiviads/kiviads_test.go
+++ b/adapters/kiviads/kiviads_test.go
@@ -3,9 +3,9 @@ package kiviads
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/kiviads/kiviadstest/supplemental/bad_response.json b/adapters/kiviads/kiviadstest/supplemental/bad_response.json
index d1dbf00134e..3f7eb4945a5 100644
--- a/adapters/kiviads/kiviadstest/supplemental/bad_response.json
+++ b/adapters/kiviads/kiviadstest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/kiviads/params_test.go b/adapters/kiviads/params_test.go
index 09ee3e24265..01927950061 100644
--- a/adapters/kiviads/params_test.go
+++ b/adapters/kiviads/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/krushmedia/krushmedia.go b/adapters/krushmedia/krushmedia.go
index aa87033052f..fd2a0adf8b1 100644
--- a/adapters/krushmedia/krushmedia.go
+++ b/adapters/krushmedia/krushmedia.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type KrushmediaAdapter struct {
@@ -110,13 +111,13 @@ func (a *KrushmediaAdapter) MakeRequests(
 
 func (a *KrushmediaAdapter) getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtKrushmedia, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Bidder extension not provided or can't be unmarshalled",
 		}
 	}
 	var krushmediaExt openrtb_ext.ExtKrushmedia
-	if err := json.Unmarshal(bidderExt.Bidder, &krushmediaExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &krushmediaExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error while unmarshaling bidder extension",
 		}
@@ -159,7 +160,7 @@ func (a *KrushmediaAdapter) MakeBids(
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/krushmedia/krushmedia_test.go b/adapters/krushmedia/krushmedia_test.go
index e7d71422dfe..26117ce103f 100644
--- a/adapters/krushmedia/krushmedia_test.go
+++ b/adapters/krushmedia/krushmedia_test.go
@@ -3,9 +3,9 @@ package krushmedia
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/krushmedia/params_test.go b/adapters/krushmedia/params_test.go
index 4129fa1bd29..babf6b205df 100644
--- a/adapters/krushmedia/params_test.go
+++ b/adapters/krushmedia/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/lemmadigital/lemmadigital.go b/adapters/lemmadigital/lemmadigital.go
index 281cd2e1f0f..16d93d47be2 100644
--- a/adapters/lemmadigital/lemmadigital.go
+++ b/adapters/lemmadigital/lemmadigital.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -38,14 +39,14 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 	}
 
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
 		return nil, []error{&errortypes.BadInput{
 			Message: fmt.Sprintf("Invalid imp.ext for impression index %d. Error Infomation: %s", 0, err.Error()),
 		}}
 	}
 
 	var impExt openrtb_ext.ImpExtLemmaDigital
-	if err := json.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
 		return nil, []error{&errortypes.BadInput{
 			Message: fmt.Sprintf("Invalid imp.ext.bidder for impression index %d. Error Infomation: %s", 0, err.Error()),
 		}}
@@ -81,7 +82,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/lemmadigital/lemmadigital_test.go b/adapters/lemmadigital/lemmadigital_test.go
index cf507f34504..d3e770bb630 100644
--- a/adapters/lemmadigital/lemmadigital_test.go
+++ b/adapters/lemmadigital/lemmadigital_test.go
@@ -3,9 +3,9 @@ package lemmadigital
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-ld-ext-bidder-object.json b/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-ld-ext-bidder-object.json
index ba46d76b598..8b078eddd6e 100644
--- a/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-ld-ext-bidder-object.json
+++ b/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-ld-ext-bidder-object.json
@@ -1,7 +1,7 @@
 {
     "expectedMakeRequestsErrors": [{
-      "value": "Invalid imp.ext.bidder for impression index 0. Error Infomation: json: cannot unmarshal string into Go struct field ImpExtLemmaDigital.pid of type int",
-      "comparison": "literal"
+      "value": "Invalid imp.ext.bidder for impression index 0. Error Infomation: cannot unmarshal openrtb_ext.ImpExtLemmaDigital.PublisherId: unexpected character",
+      "comparison": "startswith"
     }],
     "mockBidRequest": {
       "app": {
diff --git a/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-ld-ext-object.json b/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-ld-ext-object.json
index 4d3d795c185..690cf1e6b10 100644
--- a/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-ld-ext-object.json
+++ b/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-ld-ext-object.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [{
-    "value": "Invalid imp.ext for impression index 0. Error Infomation: unexpected end of JSON input",
-    "comparison": "literal"
+    "value": "Invalid imp.ext for impression index 0. Error Infomation: expect { or n, but found",
+    "comparison": "startswith"
   }],
   "mockBidRequest": {
     "app": {
diff --git a/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-response.json b/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-response.json
index 7b703721881..74e418c92c3 100644
--- a/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-response.json
+++ b/adapters/lemmadigital/lemmadigitaltest/supplemental/invalid-response.json
@@ -57,7 +57,7 @@
     }
   }],
   "expectedMakeBidsErrors": [{
-    "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+    "value": "expect { or n, but found \"",
     "comparison": "literal"
   }]
 }
\ No newline at end of file
diff --git a/adapters/lemmadigital/params_test.go b/adapters/lemmadigital/params_test.go
index 4ba61319b33..c8c739ff596 100644
--- a/adapters/lemmadigital/params_test.go
+++ b/adapters/lemmadigital/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // Tests for static/bidder-params/lemmadigital.json
diff --git a/adapters/limelightDigital/limelightDigital.go b/adapters/limelightDigital/limelightDigital.go
index b4c327e8475..18ba5dd6f74 100644
--- a/adapters/limelightDigital/limelightDigital.go
+++ b/adapters/limelightDigital/limelightDigital.go
@@ -10,11 +10,12 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -115,7 +116,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -141,13 +142,13 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ImpExtLimelightDigital, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder is not provided",
 		}
 	}
 	var limelightDigitalExt openrtb_ext.ImpExtLimelightDigital
-	if err := json.Unmarshal(bidderExt.Bidder, &limelightDigitalExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &limelightDigitalExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder is not provided",
 		}
diff --git a/adapters/limelightDigital/limelightDigital_test.go b/adapters/limelightDigital/limelightDigital_test.go
index beb4222f5c8..2b36ee573de 100644
--- a/adapters/limelightDigital/limelightDigital_test.go
+++ b/adapters/limelightDigital/limelightDigital_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/limelightDigital/params_test.go b/adapters/limelightDigital/params_test.go
index 9a61e9ba7c9..04c49d8373c 100644
--- a/adapters/limelightDigital/params_test.go
+++ b/adapters/limelightDigital/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/lm_kiviads/lmkiviads.go b/adapters/lm_kiviads/lmkiviads.go
index e5f9723c34d..bc4e48b1d7a 100644
--- a/adapters/lm_kiviads/lmkiviads.go
+++ b/adapters/lm_kiviads/lmkiviads.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type bidType struct {
@@ -41,14 +42,14 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 
 func (a *adapter) buildEndpointFromRequest(imp *openrtb2.Imp) (string, error) {
 	var impExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize bidder impression extension: %v", err),
 		}
 	}
 
 	var kiviExt openrtb_ext.ExtLmKiviads
-	if err := json.Unmarshal(impExt.Bidder, &kiviExt); err != nil {
+	if err := jsonutil.Unmarshal(impExt.Bidder, &kiviExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize LmKiviads extension: %v", err),
 		}
@@ -116,7 +117,7 @@ func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -136,7 +137,7 @@ func prepareBidResponse(seats []openrtb2.SeatBid) (*adapters.BidderResponse, []e
 	for _, seatBid := range seats {
 		for bidId, bid := range seatBid.Bid {
 			var bidExt bidExt
-			if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+			if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 				errs = append(errs, &errortypes.BadServerResponse{
 					Message: fmt.Sprintf("Failed to parse Bid[%d].Ext: %s", bidId, err.Error()),
 				})
diff --git a/adapters/lm_kiviads/lmkiviads_test.go b/adapters/lm_kiviads/lmkiviads_test.go
index 01bf47ef8a7..34ea2bf467f 100644
--- a/adapters/lm_kiviads/lmkiviads_test.go
+++ b/adapters/lm_kiviads/lmkiviads_test.go
@@ -3,9 +3,9 @@ package lmkiviads
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/lm_kiviads/lmkiviadstest/supplemental/bad-response.json b/adapters/lm_kiviads/lmkiviadstest/supplemental/bad-response.json
index 87f917e58ab..b913e93293a 100644
--- a/adapters/lm_kiviads/lmkiviadstest/supplemental/bad-response.json
+++ b/adapters/lm_kiviads/lmkiviadstest/supplemental/bad-response.json
@@ -99,7 +99,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/lm_kiviads/lmkiviadstest/supplemental/invalid-ext-bidder-object.json b/adapters/lm_kiviads/lmkiviadstest/supplemental/invalid-ext-bidder-object.json
index 87ade656d2d..ec20948c77c 100644
--- a/adapters/lm_kiviads/lmkiviadstest/supplemental/invalid-ext-bidder-object.json
+++ b/adapters/lm_kiviads/lmkiviadstest/supplemental/invalid-ext-bidder-object.json
@@ -42,7 +42,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize LmKiviads extension: json: cannot unmarshal array into Go value of type openrtb_ext.ExtLmKiviads",
+      "value": "Failed to deserialize LmKiviads extension: expect { or n, but found [",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/lm_kiviads/lmkiviadstest/supplemental/invalid-ext-object.json b/adapters/lm_kiviads/lmkiviadstest/supplemental/invalid-ext-object.json
index aa215eb3e34..16cf58bbe54 100644
--- a/adapters/lm_kiviads/lmkiviadstest/supplemental/invalid-ext-object.json
+++ b/adapters/lm_kiviads/lmkiviadstest/supplemental/invalid-ext-object.json
@@ -40,7 +40,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize bidder impression extension: json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "Failed to deserialize bidder impression extension: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/lm_kiviads/params_test.go b/adapters/lm_kiviads/params_test.go
index 1f3361b2581..00f76bca95d 100644
--- a/adapters/lm_kiviads/params_test.go
+++ b/adapters/lm_kiviads/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/lockerdome/lockerdome.go b/adapters/lockerdome/lockerdome.go
index 3e483fad646..2206b82015c 100644
--- a/adapters/lockerdome/lockerdome.go
+++ b/adapters/lockerdome/lockerdome.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const unexpectedStatusCodeMessage = "Unexpected status code: %d. Run with request.debug = 1 for more info"
@@ -43,7 +44,7 @@ func (adapter *LockerDomeAdapter) MakeRequests(openRTBRequest *openrtb2.BidReque
 			continue
 		}
 		var bidderExt adapters.ExtImpBidder
-		err := json.Unmarshal(openRTBRequest.Imp[i].Ext, &bidderExt)
+		err := jsonutil.Unmarshal(openRTBRequest.Imp[i].Ext, &bidderExt)
 		if err != nil { // lockerdometest/supplemental/no_ext.json
 			err = &errortypes.BadInput{
 				Message: "ext was not provided.",
@@ -52,7 +53,7 @@ func (adapter *LockerDomeAdapter) MakeRequests(openRTBRequest *openrtb2.BidReque
 			continue
 		}
 		var lockerdomeExt openrtb_ext.ExtImpLockerDome
-		err = json.Unmarshal(bidderExt.Bidder, &lockerdomeExt)
+		err = jsonutil.Unmarshal(bidderExt.Bidder, &lockerdomeExt)
 		if err != nil { // lockerdometest/supplemental/no_adUnitId_param.json
 			err = &errortypes.BadInput{
 				Message: "ext.bidder.adUnitId was not provided.",
@@ -129,7 +130,7 @@ func (adapter *LockerDomeAdapter) MakeBids(openRTBRequest *openrtb2.BidRequest,
 	}
 
 	var openRTBBidderResponse openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
 		return nil, []error{
 			fmt.Errorf("Error unmarshaling LockerDome bid response - %s", err.Error()),
 		}
diff --git a/adapters/lockerdome/lockerdome_test.go b/adapters/lockerdome/lockerdome_test.go
index 892fce2183a..b0c12083e46 100644
--- a/adapters/lockerdome/lockerdome_test.go
+++ b/adapters/lockerdome/lockerdome_test.go
@@ -3,9 +3,9 @@ package lockerdome
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/lockerdome/lockerdometest/supplemental/bad_response.json b/adapters/lockerdome/lockerdometest/supplemental/bad_response.json
index c3b0045e275..b90eb3f1e0e 100644
--- a/adapters/lockerdome/lockerdometest/supplemental/bad_response.json
+++ b/adapters/lockerdome/lockerdometest/supplemental/bad_response.json
@@ -57,7 +57,7 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "Error unmarshaling LockerDome bid response - json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "Error unmarshaling LockerDome bid response - expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/lockerdome/params_test.go b/adapters/lockerdome/params_test.go
index 9b90ec0b888..50504b68d28 100644
--- a/adapters/lockerdome/params_test.go
+++ b/adapters/lockerdome/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file tests static/bidder-params/lockerdome.json
diff --git a/adapters/logan/logan.go b/adapters/logan/logan.go
index 73e602f5632..a5f995108f4 100644
--- a/adapters/logan/logan.go
+++ b/adapters/logan/logan.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -43,7 +44,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		request.Imp = []openrtb2.Imp{currImp}
 
 		var bidderExt reqBodyExt
-		if err := json.Unmarshal(currImp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(currImp.Ext, &bidderExt); err != nil {
 			errors = append(errors, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -103,7 +104,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/logan/logan_test.go b/adapters/logan/logan_test.go
index 219fbb50fe0..8e677c5585e 100644
--- a/adapters/logan/logan_test.go
+++ b/adapters/logan/logan_test.go
@@ -3,9 +3,9 @@ package logan
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/logan/logantest/supplemental/bad_response.json b/adapters/logan/logantest/supplemental/bad_response.json
index d71deaddfb8..1653abee0a8 100644
--- a/adapters/logan/logantest/supplemental/bad_response.json
+++ b/adapters/logan/logantest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/logan/params_test.go b/adapters/logan/params_test.go
index 55633b47c36..76c8cb3dd84 100644
--- a/adapters/logan/params_test.go
+++ b/adapters/logan/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/logicad/logicad.go b/adapters/logicad/logicad.go
index 5ce3d0ac7e1..a1dc40fdcf5 100644
--- a/adapters/logicad/logicad.go
+++ b/adapters/logicad/logicad.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type LogicadAdapter struct {
@@ -74,12 +75,12 @@ func getImpressionExt(imp *openrtb2.Imp) (openrtb_ext.ExtImpLogicad, error) {
 	var bidderExt adapters.ExtImpBidder
 	var logicadExt openrtb_ext.ExtImpLogicad
 
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return logicadExt, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
-	if err := json.Unmarshal(bidderExt.Bidder, &logicadExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &logicadExt); err != nil {
 		return logicadExt, &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -128,7 +129,7 @@ func (adapter *LogicadAdapter) MakeBids(internalRequest *openrtb2.BidRequest, ex
 
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		msg := fmt.Sprintf("Bad server response: %d", err)
 		return nil, []error{&errortypes.BadServerResponse{Message: msg}}
 	}
diff --git a/adapters/logicad/logicad_test.go b/adapters/logicad/logicad_test.go
index 551bd133a9c..a15d381cbb5 100644
--- a/adapters/logicad/logicad_test.go
+++ b/adapters/logicad/logicad_test.go
@@ -3,9 +3,9 @@ package logicad
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/logicad/logicadtest/supplemental/ext.json b/adapters/logicad/logicadtest/supplemental/ext.json
index ad35892086b..97b5ff61cfa 100644
--- a/adapters/logicad/logicadtest/supplemental/ext.json
+++ b/adapters/logicad/logicadtest/supplemental/ext.json
@@ -24,8 +24,8 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
\ No newline at end of file
diff --git a/adapters/logicad/params_test.go b/adapters/logicad/params_test.go
index c45297d15c2..06f15d9d1ba 100644
--- a/adapters/logicad/params_test.go
+++ b/adapters/logicad/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/loyal/loyal.go b/adapters/loyal/loyal.go
index 4c1bf4dc59e..efe069c6380 100644
--- a/adapters/loyal/loyal.go
+++ b/adapters/loyal/loyal.go
@@ -7,9 +7,10 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -44,11 +45,11 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var loyalExt openrtb_ext.ImpExtLoyal
 
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
-		if err := json.Unmarshal(bidderExt.Bidder, &loyalExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &loyalExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
@@ -118,7 +119,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -146,7 +147,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 
 func getBidMediaType(bid *openrtb2.Bid) (openrtb_ext.BidType, error) {
 	var extBid openrtb_ext.ExtBid
-	err := json.Unmarshal(bid.Ext, &extBid)
+	err := jsonutil.Unmarshal(bid.Ext, &extBid)
 	if err != nil {
 		return "", fmt.Errorf("unable to deserialize imp %v bid.ext, error: %v", bid.ImpID, err)
 	}
diff --git a/adapters/loyal/loyal_test.go b/adapters/loyal/loyal_test.go
index bac3e439162..1836b267beb 100644
--- a/adapters/loyal/loyal_test.go
+++ b/adapters/loyal/loyal_test.go
@@ -3,9 +3,9 @@ package loyal
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/loyal/loyaltest/supplemental/bad_response.json b/adapters/loyal/loyaltest/supplemental/bad_response.json
index 58d5c71fa52..30fa65e95d9 100644
--- a/adapters/loyal/loyaltest/supplemental/bad_response.json
+++ b/adapters/loyal/loyaltest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/loyal/params_test.go b/adapters/loyal/params_test.go
index 1e9b6c650cd..e0c47d50300 100644
--- a/adapters/loyal/params_test.go
+++ b/adapters/loyal/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/lunamedia/lunamedia.go b/adapters/lunamedia/lunamedia.go
index bc663d31fdb..3db1b12ad4f 100644
--- a/adapters/lunamedia/lunamedia.go
+++ b/adapters/lunamedia/lunamedia.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type LunaMediaAdapter struct {
@@ -116,13 +117,13 @@ func compatBannerImpression(imp *openrtb2.Imp) error {
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpLunaMedia, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 	var LunaMediaExt openrtb_ext.ExtImpLunaMedia
-	if err := json.Unmarshal(bidderExt.Bidder, &LunaMediaExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &LunaMediaExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -196,7 +197,7 @@ func (adapter *LunaMediaAdapter) MakeBids(internalRequest *openrtb2.BidRequest,
 
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		msg = fmt.Sprintf("Bad server response: %d", err)
 		return nil, []error{&errortypes.BadServerResponse{Message: msg}}
 	}
diff --git a/adapters/lunamedia/lunamedia_test.go b/adapters/lunamedia/lunamedia_test.go
index c950ce4d25f..8677fbb2979 100644
--- a/adapters/lunamedia/lunamedia_test.go
+++ b/adapters/lunamedia/lunamedia_test.go
@@ -3,9 +3,9 @@ package lunamedia
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/lunamedia/lunamediatest/supplemental/ext.json b/adapters/lunamedia/lunamediatest/supplemental/ext.json
index 3cfb878bd47..285c8b11ed2 100644
--- a/adapters/lunamedia/lunamediatest/supplemental/ext.json
+++ b/adapters/lunamedia/lunamediatest/supplemental/ext.json
@@ -27,7 +27,7 @@
   },
 "expectedMakeRequestsErrors": [
     {
-        "value": "unexpected end of JSON input",
-        "comparison": "literal"
+        "value": "expect { or n, but found",
+        "comparison": "startswith"
     }]
 }
\ No newline at end of file
diff --git a/adapters/lunamedia/params_test.go b/adapters/lunamedia/params_test.go
index 12ecc65f420..b78b94934d1 100644
--- a/adapters/lunamedia/params_test.go
+++ b/adapters/lunamedia/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/mabidder/mabidder.go b/adapters/mabidder/mabidder.go
index 8e636e2281c..25d2830ef93 100644
--- a/adapters/mabidder/mabidder.go
+++ b/adapters/mabidder/mabidder.go
@@ -4,9 +4,10 @@ import (
 	"encoding/json"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type serverResponse struct {
@@ -71,7 +72,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response serverResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/mabidder/mabidder_test.go b/adapters/mabidder/mabidder_test.go
index 31c28788ad2..f821752e9b6 100644
--- a/adapters/mabidder/mabidder_test.go
+++ b/adapters/mabidder/mabidder_test.go
@@ -3,9 +3,9 @@ package mabidder
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/mabidder/mabiddertest/supplemental/bad-response-malformed.json b/adapters/mabidder/mabiddertest/supplemental/bad-response-malformed.json
index fb59513192d..2638f5415f7 100644
--- a/adapters/mabidder/mabiddertest/supplemental/bad-response-malformed.json
+++ b/adapters/mabidder/mabiddertest/supplemental/bad-response-malformed.json
@@ -66,8 +66,8 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/mabidder/params_test.go b/adapters/mabidder/params_test.go
index 878e278438d..bd4162448f8 100644
--- a/adapters/mabidder/params_test.go
+++ b/adapters/mabidder/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/madvertise/madvertise.go b/adapters/madvertise/madvertise.go
index 3c1ffa4ae55..d8c6fc3953c 100644
--- a/adapters/madvertise/madvertise.go
+++ b/adapters/madvertise/madvertise.go
@@ -8,11 +8,12 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -93,13 +94,13 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 
 func getImpressionExt(imp openrtb2.Imp) (*openrtb_ext.ExtImpMadvertise, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("%s; ImpID=%s", err.Error(), imp.ID),
 		}
 	}
 	var madvertiseExt openrtb_ext.ExtImpMadvertise
-	if err := json.Unmarshal(bidderExt.Bidder, &madvertiseExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &madvertiseExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("%s; ImpID=%s", err.Error(), imp.ID),
 		}
@@ -131,7 +132,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/madvertise/madvertise_test.go b/adapters/madvertise/madvertise_test.go
index 3d412b1e154..e402ae4dc7f 100644
--- a/adapters/madvertise/madvertise_test.go
+++ b/adapters/madvertise/madvertise_test.go
@@ -3,9 +3,9 @@ package madvertise
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/madvertise/madvertisetest/supplemental/required-ext.json b/adapters/madvertise/madvertisetest/supplemental/required-ext.json
index 8989a8dc4e1..6d953811244 100644
--- a/adapters/madvertise/madvertisetest/supplemental/required-ext.json
+++ b/adapters/madvertise/madvertisetest/supplemental/required-ext.json
@@ -12,8 +12,8 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "unexpected end of JSON input; ImpID=test-imp-id-1",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/madvertise/params_test.go b/adapters/madvertise/params_test.go
index 55454399155..c155d5beda1 100644
--- a/adapters/madvertise/params_test.go
+++ b/adapters/madvertise/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/Madvertise.json
diff --git a/adapters/marsmedia/marsmedia.go b/adapters/marsmedia/marsmedia.go
index f47ba557d88..92bfa0dc9f7 100644
--- a/adapters/marsmedia/marsmedia.go
+++ b/adapters/marsmedia/marsmedia.go
@@ -7,10 +7,11 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type MarsmediaAdapter struct {
@@ -28,14 +29,14 @@ func (a *MarsmediaAdapter) MakeRequests(requestIn *openrtb2.BidRequest, reqInfo
 	}
 
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
 		return nil, []error{&errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}}
 	}
 
 	var marsmediaExt openrtb_ext.ExtImpMarsmedia
-	if err := json.Unmarshal(bidderExt.Bidder, &marsmediaExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &marsmediaExt); err != nil {
 		return nil, []error{&errortypes.BadInput{
 			Message: "ext.bidder.zoneId not provided",
 		}}
@@ -126,7 +127,7 @@ func (a *MarsmediaAdapter) MakeBids(internalRequest *openrtb2.BidRequest, extern
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Bad server response: %d. ", err),
 		}}
diff --git a/adapters/marsmedia/marsmedia_test.go b/adapters/marsmedia/marsmedia_test.go
index 6c75ef76c37..4164d433fd3 100644
--- a/adapters/marsmedia/marsmedia_test.go
+++ b/adapters/marsmedia/marsmedia_test.go
@@ -3,9 +3,9 @@ package marsmedia
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/marsmedia/marsmediatest/supplemental/missing-param.json b/adapters/marsmedia/marsmediatest/supplemental/missing-param.json
index e68b3f529e0..b88fba5a8a1 100644
--- a/adapters/marsmedia/marsmediatest/supplemental/missing-param.json
+++ b/adapters/marsmedia/marsmediatest/supplemental/missing-param.json
@@ -27,7 +27,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "ext.bidder.zoneId not provided",
+      "value": "zoneId is empty",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/marsmedia/params_test.go b/adapters/marsmedia/params_test.go
index ee79015b05c..7961d21455f 100644
--- a/adapters/marsmedia/params_test.go
+++ b/adapters/marsmedia/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/marsmedia.json
diff --git a/adapters/mediago/mediago.go b/adapters/mediago/mediago.go
index 2ef46310bd0..dc7ee01b9f3 100644
--- a/adapters/mediago/mediago.go
+++ b/adapters/mediago/mediago.go
@@ -9,11 +9,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -87,9 +88,9 @@ func getMediaGoExt(request *openrtb2.BidRequest) (*openrtb_ext.ExtMediaGo, error
 
 	// first get the mediago ext from ext.bidderparams
 	reqExt := &openrtb_ext.ExtRequest{}
-	err := json.Unmarshal(request.Ext, &reqExt)
+	err := jsonutil.Unmarshal(request.Ext, &reqExt)
 	if err != nil {
-		err = json.Unmarshal(reqExt.Prebid.BidderParams, &extMediaGo)
+		err = jsonutil.Unmarshal(reqExt.Prebid.BidderParams, &extMediaGo)
 		if err != nil && extMediaGo.Token != "" {
 			return &extMediaGo, nil
 		}
@@ -97,13 +98,13 @@ func getMediaGoExt(request *openrtb2.BidRequest) (*openrtb_ext.ExtMediaGo, error
 
 	// fallback to get token and region from first imp
 	imp := request.Imp[0]
-	err = json.Unmarshal(imp.Ext, &extBidder)
+	err = jsonutil.Unmarshal(imp.Ext, &extBidder)
 	if err != nil {
 		return nil, err
 	}
 
 	var extImpMediaGo openrtb_ext.ExtImpMediaGo
-	err = json.Unmarshal(extBidder.Bidder, &extImpMediaGo)
+	err = jsonutil.Unmarshal(extBidder.Bidder, &extImpMediaGo)
 	if err != nil {
 		return nil, err
 	}
@@ -161,7 +162,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/mediago/mediago_test.go b/adapters/mediago/mediago_test.go
index 2ac094045e5..d6a480c8288 100644
--- a/adapters/mediago/mediago_test.go
+++ b/adapters/mediago/mediago_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/mediago/mediagotest/supplemental/bad_imp_ext.json b/adapters/mediago/mediagotest/supplemental/bad_imp_ext.json
index 191e4e33077..9c510cf16f2 100644
--- a/adapters/mediago/mediagotest/supplemental/bad_imp_ext.json
+++ b/adapters/mediago/mediagotest/supplemental/bad_imp_ext.json
@@ -18,7 +18,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/mediago/mediagotest/supplemental/bad_impext_bidder.json b/adapters/mediago/mediagotest/supplemental/bad_impext_bidder.json
index 08e652b5cae..a5776adaed7 100644
--- a/adapters/mediago/mediagotest/supplemental/bad_impext_bidder.json
+++ b/adapters/mediago/mediagotest/supplemental/bad_impext_bidder.json
@@ -20,7 +20,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb_ext.ExtImpMediaGo",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/mediago/mediagotest/supplemental/bad_response.json b/adapters/mediago/mediagotest/supplemental/bad_response.json
index d72ea408d39..922e1debf40 100644
--- a/adapters/mediago/mediagotest/supplemental/bad_response.json
+++ b/adapters/mediago/mediagotest/supplemental/bad_response.json
@@ -60,7 +60,7 @@
   "expectedMakeBidsErrors": [
     {
       "comparison": "literal",
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse"
+      "value": "expect { or n, but found \""
     }
   ]
 }
diff --git a/adapters/mediago/params_test.go b/adapters/mediago/params_test.go
index 187248a45bf..c1a7fbd3e43 100644
--- a/adapters/mediago/params_test.go
+++ b/adapters/mediago/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/medianet/medianet.go b/adapters/medianet/medianet.go
index a6a3bd4709a..08a1ae021f4 100644
--- a/adapters/medianet/medianet.go
+++ b/adapters/medianet/medianet.go
@@ -7,10 +7,11 @@ import (
 	"net/url"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -59,7 +60,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/medianet/medianet_test.go b/adapters/medianet/medianet_test.go
index 097e8e48727..8721c6984cd 100644
--- a/adapters/medianet/medianet_test.go
+++ b/adapters/medianet/medianet_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/medianet/params_test.go b/adapters/medianet/params_test.go
index 7c999a66428..15cd4acbab3 100644
--- a/adapters/medianet/params_test.go
+++ b/adapters/medianet/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/medianet.json
diff --git a/adapters/melozen/melozen.go b/adapters/melozen/melozen.go
index cb76274865b..d49cc287846 100644
--- a/adapters/melozen/melozen.go
+++ b/adapters/melozen/melozen.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -44,12 +45,12 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 	for _, imp := range request.Imp {
 		// Extract Melozen Params
 		var strImpExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &strImpExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &strImpExt); err != nil {
 			errors = append(errors, err)
 			continue
 		}
 		var strImpParams openrtb_ext.ImpExtMeloZen
-		if err := json.Unmarshal(strImpExt.Bidder, &strImpParams); err != nil {
+		if err := jsonutil.Unmarshal(strImpExt.Bidder, &strImpParams); err != nil {
 			errors = append(errors, err)
 			continue
 		}
@@ -109,12 +110,12 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var bidReq openrtb2.BidRequest
-	if err := json.Unmarshal(requestData.Body, &bidReq); err != nil {
+	if err := jsonutil.Unmarshal(requestData.Body, &bidReq); err != nil {
 		return nil, []error{err}
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -173,7 +174,7 @@ func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 
 	if bid.Ext != nil {
 		var bidExt openrtb_ext.ExtBid
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil && bidExt.Prebid != nil {
 			return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
 		}
diff --git a/adapters/melozen/melozen_test.go b/adapters/melozen/melozen_test.go
index 0191ab73182..cf6189c6abc 100644
--- a/adapters/melozen/melozen_test.go
+++ b/adapters/melozen/melozen_test.go
@@ -3,9 +3,9 @@ package melozen
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/melozen/params_test.go b/adapters/melozen/params_test.go
index 7e1be7f0db0..42a4b38ec8d 100644
--- a/adapters/melozen/params_test.go
+++ b/adapters/melozen/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/metax/metax.go b/adapters/metax/metax.go
index d10c426434c..bd1f6272bea 100644
--- a/adapters/metax/metax.go
+++ b/adapters/metax/metax.go
@@ -9,12 +9,13 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 type adapter struct {
@@ -77,7 +78,7 @@ func (a *adapter) MakeBids(bidReq *openrtb2.BidRequest, reqData *adapters.Reques
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(respData.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(respData.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -116,12 +117,12 @@ func (a *adapter) getEndpoint(ext *openrtb_ext.ExtImpMetaX) (string, error) {
 
 func parseBidderExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpMetaX, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, err
 	}
 
 	var metaxExt openrtb_ext.ExtImpMetaX
-	if err := json.Unmarshal(bidderExt.Bidder, &metaxExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &metaxExt); err != nil {
 		return nil, errors.New("Wrong MetaX bidder ext")
 	}
 
diff --git a/adapters/metax/metax_test.go b/adapters/metax/metax_test.go
index 765f3004c81..cd1e39ad6c4 100644
--- a/adapters/metax/metax_test.go
+++ b/adapters/metax/metax_test.go
@@ -5,11 +5,11 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/metax/metaxtest/supplemental/invalid-ext.json b/adapters/metax/metaxtest/supplemental/invalid-ext.json
index 54d6d9f2c05..7386b9ba62e 100644
--- a/adapters/metax/metaxtest/supplemental/invalid-ext.json
+++ b/adapters/metax/metaxtest/supplemental/invalid-ext.json
@@ -23,8 +23,8 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal*",
-      "comparison": "regex"
+      "value": "expect { or n, but found \"",
+      "comparison": "literal"
     }
   ]
 }
diff --git a/adapters/metax/metaxtest/supplemental/resp-bad-json.json b/adapters/metax/metaxtest/supplemental/resp-bad-json.json
index cc51b14e050..5879dad6cab 100644
--- a/adapters/metax/metaxtest/supplemental/resp-bad-json.json
+++ b/adapters/metax/metaxtest/supplemental/resp-bad-json.json
@@ -73,8 +73,8 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal*",
-      "comparison": "regex"
+      "value": "expect { or n, but found \"",
+      "comparison": "literal"
     }
   ]
 }
diff --git a/adapters/metax/params_test.go b/adapters/metax/params_test.go
index 5ffb45308e1..4487c23326c 100644
--- a/adapters/metax/params_test.go
+++ b/adapters/metax/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/metax.json
diff --git a/adapters/mgid/mgid.go b/adapters/mgid/mgid.go
index 93398905da1..68a760a7f52 100644
--- a/adapters/mgid/mgid.go
+++ b/adapters/mgid/mgid.go
@@ -7,10 +7,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type MgidAdapter struct {
@@ -74,7 +75,7 @@ func preprocess(request *openrtb2.BidRequest) (path string, err error) {
 		var imp = request.Imp[i]
 		var bidderExt adapters.ExtImpBidder
 
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			return "", &errortypes.BadInput{
 				Message: err.Error(),
 			}
@@ -82,7 +83,7 @@ func preprocess(request *openrtb2.BidRequest) (path string, err error) {
 
 		var mgidExt openrtb_ext.ExtImpMgid
 
-		if err := json.Unmarshal(bidderExt.Bidder, &mgidExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &mgidExt); err != nil {
 			return "", &errortypes.BadInput{
 				Message: err.Error(),
 			}
@@ -143,7 +144,7 @@ func (a *MgidAdapter) MakeBids(bidReq *openrtb2.BidRequest, unused *adapters.Req
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -156,7 +157,7 @@ func (a *MgidAdapter) MakeBids(bidReq *openrtb2.BidRequest, unused *adapters.Req
 			bidType := openrtb_ext.BidTypeBanner
 			if len(sb.Bid[i].Ext) > 0 && bytes.Contains(sb.Bid[i].Ext, []byte("crtype")) {
 				ext := RespBidExt{}
-				if err := json.Unmarshal(sb.Bid[i].Ext, &ext); err == nil && len(ext.CreativeType) > 0 {
+				if err := jsonutil.Unmarshal(sb.Bid[i].Ext, &ext); err == nil && len(ext.CreativeType) > 0 {
 					bidType = ext.CreativeType
 				}
 			}
diff --git a/adapters/mgid/mgid_test.go b/adapters/mgid/mgid_test.go
index 21311f5477d..7dc7018b577 100644
--- a/adapters/mgid/mgid_test.go
+++ b/adapters/mgid/mgid_test.go
@@ -3,9 +3,9 @@ package mgid
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/mgidX/mgidX.go b/adapters/mgidX/mgidX.go
index 6e6a3427fca..f952fc27ff0 100644
--- a/adapters/mgidX/mgidX.go
+++ b/adapters/mgidX/mgidX.go
@@ -7,9 +7,10 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -44,10 +45,10 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var mgidXExt openrtb_ext.ImpExtMgidX
 
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			return nil, []error{err}
 		}
-		if err = json.Unmarshal(bidderExt.Bidder, &mgidXExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &mgidXExt); err != nil {
 			return nil, []error{err}
 		}
 
@@ -115,7 +116,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -146,7 +147,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 
 func getBidMediaType(bid *openrtb2.Bid) (openrtb_ext.BidType, error) {
 	var extBid openrtb_ext.ExtBid
-	err := json.Unmarshal(bid.Ext, &extBid)
+	err := jsonutil.Unmarshal(bid.Ext, &extBid)
 	if err != nil {
 		return "", fmt.Errorf("unable to deserialize imp %v bid.ext", bid.ImpID)
 	}
diff --git a/adapters/mgidX/mgidX_test.go b/adapters/mgidX/mgidX_test.go
index 7ff4eb93627..90ea5c79042 100644
--- a/adapters/mgidX/mgidX_test.go
+++ b/adapters/mgidX/mgidX_test.go
@@ -3,9 +3,9 @@ package mgidX
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/mgidX/mgidXtest/supplemental/bad_response.json b/adapters/mgidX/mgidXtest/supplemental/bad_response.json
index c732ba92c67..5cc4a338ac3 100644
--- a/adapters/mgidX/mgidXtest/supplemental/bad_response.json
+++ b/adapters/mgidX/mgidXtest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/mgidX/params_test.go b/adapters/mgidX/params_test.go
index b3d80207811..c5246fba4b9 100644
--- a/adapters/mgidX/params_test.go
+++ b/adapters/mgidX/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/minutemedia/minutemedia.go b/adapters/minutemedia/minutemedia.go
index 796f9ec6e6b..37bb9148312 100644
--- a/adapters/minutemedia/minutemedia.go
+++ b/adapters/minutemedia/minutemedia.go
@@ -10,10 +10,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // adapter is a MinuteMedia implementation of the adapters.Bidder interface.
@@ -62,7 +63,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -96,12 +97,12 @@ func extractOrg(openRTBRequest *openrtb2.BidRequest) (string, error) {
 	}
 
 	var bidderExt adapters.ExtImpBidder
-	if err = json.Unmarshal(openRTBRequest.Imp[0].Ext, &bidderExt); err != nil {
+	if err = jsonutil.Unmarshal(openRTBRequest.Imp[0].Ext, &bidderExt); err != nil {
 		return "", fmt.Errorf("failed to unmarshal bidderExt: %w", err)
 	}
 
 	var impExt openrtb_ext.ImpExtMinuteMedia
-	if err = json.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
+	if err = jsonutil.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
 		return "", fmt.Errorf("failed to unmarshal ImpExtMinuteMedia: %w", err)
 	}
 
diff --git a/adapters/minutemedia/minutemedia_test.go b/adapters/minutemedia/minutemedia_test.go
index 5ab59773ff7..aa3ce56ca29 100644
--- a/adapters/minutemedia/minutemedia_test.go
+++ b/adapters/minutemedia/minutemedia_test.go
@@ -3,9 +3,9 @@ package minutemedia
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsDir = "minutemediatest"
diff --git a/adapters/minutemedia/minutemediatest/supplemental/missing-bidder.json b/adapters/minutemedia/minutemediatest/supplemental/missing-bidder.json
index c5724e88738..6ed87bbf7ec 100644
--- a/adapters/minutemedia/minutemediatest/supplemental/missing-bidder.json
+++ b/adapters/minutemedia/minutemediatest/supplemental/missing-bidder.json
@@ -41,8 +41,8 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "failed to extract org: failed to unmarshal ImpExtMinuteMedia: unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "failed to extract org: failed to unmarshal ImpExtMinuteMedia: expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/minutemedia/minutemediatest/supplemental/missing-extension.json b/adapters/minutemedia/minutemediatest/supplemental/missing-extension.json
index bd0f87c3e59..02783e0b2d3 100644
--- a/adapters/minutemedia/minutemediatest/supplemental/missing-extension.json
+++ b/adapters/minutemedia/minutemediatest/supplemental/missing-extension.json
@@ -40,8 +40,8 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "failed to extract org: failed to unmarshal bidderExt: unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "failed to extract org: failed to unmarshal bidderExt: expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/missena/missena.go b/adapters/missena/missena.go
new file mode 100644
index 00000000000..6068cf21897
--- /dev/null
+++ b/adapters/missena/missena.go
@@ -0,0 +1,216 @@
+package missena
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"text/template"
+
+	"github.com/prebid/openrtb/v20/openrtb2"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+)
+
+type adapter struct {
+	endpoint string
+}
+
+type MissenaAdRequest struct {
+	RequestId        string `json:"request_id"`
+	Timeout          int    `json:"timeout"`
+	Referer          string `json:"referer"`
+	RefererCanonical string `json:"referer_canonical"`
+	GDPRConsent      string `json:"consent_string"`
+	GDPR             bool   `json:"consent_required"`
+	Placement        string `json:"placement"`
+	TestMode         string `json:"test"`
+}
+
+type MissenaBidServerResponse struct {
+	Ad        string  `json:"ad"`
+	Cpm       float64 `json:"cpm"`
+	Currency  string  `json:"currency"`
+	RequestId string  `json:"requestId"`
+}
+
+type MissenaInternalParams struct {
+	ApiKey           string
+	RequestId        string
+	Timeout          int
+	Referer          string
+	RefererCanonical string
+	GDPRConsent      string
+	GDPR             bool
+	Placement        string
+	TestMode         string
+}
+
+type MissenaAdapter struct {
+	EndpointTemplate *template.Template
+}
+
+// Builder builds a new instance of the Foo adapter for the given bidder with the given config.
+func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
+	bidder := &adapter{
+		endpoint: config.Endpoint,
+	}
+	return bidder, nil
+}
+
+func (a *adapter) makeRequest(missenaParams MissenaInternalParams, reqInfo *adapters.ExtraRequestInfo, impID string, request *openrtb2.BidRequest) (*adapters.RequestData, error) {
+	url := a.endpoint + "?t=" + missenaParams.ApiKey
+
+	missenaRequest := MissenaAdRequest{
+		RequestId:        request.ID,
+		Timeout:          2000,
+		Referer:          request.Site.Page,
+		RefererCanonical: request.Site.Domain,
+		GDPRConsent:      missenaParams.GDPRConsent,
+		GDPR:             missenaParams.GDPR,
+		Placement:        missenaParams.Placement,
+		TestMode:         missenaParams.TestMode,
+	}
+
+	body, errm := json.Marshal(missenaRequest)
+	if errm != nil {
+		return nil, errm
+	}
+
+	headers := http.Header{}
+	headers.Add("Content-Type", "application/json;charset=utf-8")
+	headers.Add("Accept", "application/json")
+
+	if request.Device != nil {
+		headers.Add("User-Agent", request.Device.UA)
+		if request.Device.IP != "" {
+			headers.Add("X-Forwarded-For", request.Device.IP)
+		} else if request.Device.IPv6 != "" {
+			headers.Add("X-Forwarded-For", request.Device.IPv6)
+		}
+	}
+	if request.Site != nil {
+		headers.Add("Referer", request.Site.Page)
+	}
+
+	return &adapters.RequestData{
+		Method:  "POST",
+		Uri:     url,
+		Headers: headers,
+		Body:    body,
+		ImpIDs:  []string{impID},
+	}, nil
+}
+
+func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
+
+	var httpRequests []*adapters.RequestData
+	var errors []error
+	gdprApplies, consentString := readGDPR(request)
+
+	missenaInternalParams := MissenaInternalParams{
+		GDPR:        gdprApplies,
+		GDPRConsent: consentString,
+	}
+
+	for _, imp := range request.Imp {
+		var bidderExt adapters.ExtImpBidder
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
+			errors = append(errors, &errortypes.BadInput{
+				Message: "Error parsing bidderExt object",
+			})
+			continue
+		}
+
+		var missenaExt openrtb_ext.ExtImpMissena
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &missenaExt); err != nil {
+			errors = append(errors, &errortypes.BadInput{
+				Message: "Error parsing missenaExt parameters",
+			})
+			continue
+		}
+
+		missenaInternalParams.ApiKey = missenaExt.ApiKey
+		missenaInternalParams.Placement = missenaExt.Placement
+		missenaInternalParams.TestMode = missenaExt.TestMode
+
+		newHttpRequest, err := a.makeRequest(missenaInternalParams, requestInfo, imp.ID, request)
+		if err != nil {
+			errors = append(errors, err)
+			continue
+		}
+
+		httpRequests = append(httpRequests, newHttpRequest)
+
+		break
+	}
+
+	return httpRequests, errors
+}
+
+func readGDPR(request *openrtb2.BidRequest) (bool, string) {
+	consentString := ""
+	if request.User != nil {
+		var extUser openrtb_ext.ExtUser
+		if err := jsonutil.Unmarshal(request.User.Ext, &extUser); err == nil {
+			consentString = extUser.Consent
+		}
+	}
+	gdprApplies := false
+	var extRegs openrtb_ext.ExtRegs
+	if request.Regs != nil {
+		if err := jsonutil.Unmarshal(request.Regs.Ext, &extRegs); err == nil {
+			if extRegs.GDPR != nil {
+				gdprApplies = (*extRegs.GDPR == 1)
+			}
+		}
+	}
+	return gdprApplies, consentString
+}
+
+func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
+	if responseData.StatusCode == http.StatusNoContent {
+		return nil, nil
+	}
+
+	if responseData.StatusCode == http.StatusBadRequest {
+		err := &errortypes.BadInput{
+			Message: "Unexpected status code: 400. Bad request from publisher. Run with request.debug = 1 for more info.",
+		}
+		return nil, []error{err}
+	}
+
+	if responseData.StatusCode != http.StatusOK {
+		err := &errortypes.BadServerResponse{
+			Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info.", responseData.StatusCode),
+		}
+		return nil, []error{err}
+	}
+
+	var missenaResponse MissenaBidServerResponse
+	if err := jsonutil.Unmarshal(responseData.Body, &missenaResponse); err != nil {
+		return nil, []error{err}
+	}
+
+	bidResponse := adapters.NewBidderResponseWithBidsCapacity(1)
+	bidResponse.Currency = missenaResponse.Currency
+
+	responseBid := &openrtb2.Bid{
+		ID:    request.ID,
+		Price: float64(missenaResponse.Cpm),
+		ImpID: request.Imp[0].ID,
+		AdM:   missenaResponse.Ad,
+		CrID:  missenaResponse.RequestId,
+	}
+
+	b := &adapters.TypedBid{
+		Bid:     responseBid,
+		BidType: openrtb_ext.BidTypeBanner,
+	}
+
+	bidResponse.Bids = append(bidResponse.Bids, b)
+
+	return bidResponse, nil
+}
diff --git a/adapters/missena/missena_test.go b/adapters/missena/missena_test.go
new file mode 100644
index 00000000000..e388eb357cd
--- /dev/null
+++ b/adapters/missena/missena_test.go
@@ -0,0 +1,21 @@
+package missena
+
+import (
+	"testing"
+
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+)
+
+func TestJsonSamples(t *testing.T) {
+	bidder, buildErr := Builder(openrtb_ext.BidderMissena, config.Adapter{
+		Endpoint: "http://example.com/"},
+		config.Server{ExternalUrl: "http://hosturl.com", GvlID: 1, DataCenter: "2"})
+
+	if buildErr != nil {
+		t.Fatalf("Builder returned unexpected error %v", buildErr)
+	}
+
+	adapterstest.RunJSONBidderTest(t, "missenatest", bidder)
+}
diff --git a/adapters/missena/missenatest/exemplary/multiple-imps.json b/adapters/missena/missenatest/exemplary/multiple-imps.json
new file mode 100644
index 00000000000..5b83f19ccd0
--- /dev/null
+++ b/adapters/missena/missenatest/exemplary/multiple-imps.json
@@ -0,0 +1,129 @@
+{
+    "mockBidRequest": {
+        "id": "test-request-id",
+        "tmax": 500,
+        "at": 1,
+        "cur": [
+            "EUR"
+        ],
+        "regs": {
+            "ext": {
+                "gdpr": 1
+            }
+        },
+        "user": {
+            "ext": {
+                "consent": "CO-X2XiO_eyUoAsAxBFRBECsA"
+            }
+        },
+        "device": {
+            "ip": "123.123.123.123",
+            "ua": "test-user-agent"
+        },
+        "site": {
+            "page": "https://example.com/page",
+            "domain": "example.com"
+        },
+        "imp": [
+            {
+                "id": "test-imp-id-1",
+                "banner": {
+                    "h": 50,
+                    "w": 320
+                },
+                "ext": {
+                    "bidder": {
+                        "apiKey": "test-api-key",
+                        "placement": "test-placement-1",
+                        "test": "1"
+                    }
+                }
+            },
+            {
+                "id": "test-imp-id-2",
+                "banner": {
+                    "h": 50,
+                    "w": 320
+                },
+                "ext": {
+                    "bidder": {
+                        "apiKey": "test-api-key",
+                        "placement": "test-placement-2",
+                        "test": "1"
+                    }
+                }
+            },
+            {
+                "id": "test-imp-id-3",
+                "banner": {
+                    "h": 50,
+                    "w": 320
+                },
+                "ext": {
+                    "bidder": "abc"
+                }
+            }
+        ]
+    },
+    "httpCalls": [
+        {
+            "expectedRequest": {
+                "uri": "http://example.com/?t=test-api-key",
+                "headers": {
+                    "Content-Type": [
+                        "application/json;charset=utf-8"
+                    ],
+                    "Accept": [
+                        "application/json"
+                    ],
+                    "User-Agent": [
+                        "test-user-agent"
+                    ],
+                    "X-Forwarded-For": [
+                        "123.123.123.123"
+                    ],
+                    "Referer": [
+                        "https://example.com/page"
+                    ]
+                },
+                "body": {
+                    "request_id": "test-request-id",
+                    "timeout": 2000,
+                    "referer": "https://example.com/page",
+                    "referer_canonical": "example.com",
+                    "consent_string": "CO-X2XiO_eyUoAsAxBFRBECsA",
+                    "consent_required": true,
+                    "placement": "test-placement-1",
+                    "test": "1"
+                },
+                "impIDs":["test-imp-id-1"]
+            },
+            "mockResponse": {
+                "status": 200,
+                "body": {
+                    "ad": "<div>test ad</div>",
+                    "cpm": 1.5,
+                    "currency": "EUR",
+                    "requestId": "test-request-id"
+                }
+            }
+        }
+    ],
+    "expectedBidResponses": [
+        {
+            "currency": "EUR",
+            "bids": [
+                {
+                    "bid": {
+                        "id": "test-request-id",
+                        "impid": "test-imp-id-1",
+                        "price": 1.5,
+                        "adm": "<div>test ad</div>",
+                        "crid": "test-request-id"
+                    },
+                    "type": "banner"
+                }
+            ]
+        }
+    ]
+}
\ No newline at end of file
diff --git a/adapters/missena/missenatest/exemplary/simple-banner-ipv6.json b/adapters/missena/missenatest/exemplary/simple-banner-ipv6.json
new file mode 100644
index 00000000000..ea240f82e09
--- /dev/null
+++ b/adapters/missena/missenatest/exemplary/simple-banner-ipv6.json
@@ -0,0 +1,105 @@
+{
+    "mockBidRequest": {
+        "id": "test-request-id",
+        "tmax": 500,
+        "at": 1,
+        "cur": [
+            "EUR"
+        ],
+        "regs": {
+            "ext": {
+                "gdpr": 1
+            }
+        },
+        "user": {
+            "ext": {
+                "consent": "CO-X2XiO_eyUoAsAxBFRBECsA"
+            }
+        },
+        "device": {
+            "ipv6": "2001:0000:130F:0000:0000:09C0:876A:130B",
+            "ua": "test-user-agent"
+        },
+        "site": {
+            "page": "https://example.com/page",
+            "domain": "example.com"
+        },
+        "imp": [
+            {
+                "id": "test-imp-id",
+                "banner": {
+                    "h": 50,
+                    "w": 320
+                },
+                "ext": {
+                    "bidder": {
+                        "apiKey": "test-api-key",
+                        "placement": "test-placement",
+                        "test": "1"
+                    }
+                }
+            }
+        ]
+    },
+    "httpCalls": [
+        {
+            "expectedRequest": {
+                "uri": "http://example.com/?t=test-api-key",
+                "headers": {
+                    "Content-Type": [
+                        "application/json;charset=utf-8"
+                    ],
+                    "Accept": [
+                        "application/json"
+                    ],
+                    "User-Agent": [
+                        "test-user-agent"
+                    ],
+                    "X-Forwarded-For": [
+                        "2001:0000:130F:0000:0000:09C0:876A:130B"
+                    ],
+                    "Referer": [
+                        "https://example.com/page"
+                    ]
+                },
+                "body": {
+                    "request_id": "test-request-id",
+                    "timeout": 2000,
+                    "referer": "https://example.com/page",
+                    "referer_canonical": "example.com",
+                    "consent_string": "CO-X2XiO_eyUoAsAxBFRBECsA",
+                    "consent_required": true,
+                    "placement": "test-placement",
+                    "test": "1"
+                },
+                "impIDs":["test-imp-id"]
+            },
+            "mockResponse": {
+                "status": 200,
+                "body": {
+                    "ad": "<div>test ad</div>",
+                    "cpm": 1.5,
+                    "currency": "EUR",
+                    "requestId": "test-request-id"
+                }
+            }
+        }
+    ],
+    "expectedBidResponses": [
+        {
+            "currency": "EUR",
+            "bids": [
+                {
+                    "bid": {
+                        "id": "test-request-id",
+                        "impid": "test-imp-id",
+                        "price": 1.5,
+                        "adm": "<div>test ad</div>",
+                        "crid": "test-request-id"
+                    },
+                    "type": "banner"
+                }
+            ]
+        }
+    ]
+}
\ No newline at end of file
diff --git a/adapters/missena/missenatest/exemplary/simple-banner.json b/adapters/missena/missenatest/exemplary/simple-banner.json
new file mode 100644
index 00000000000..74ff3abfd57
--- /dev/null
+++ b/adapters/missena/missenatest/exemplary/simple-banner.json
@@ -0,0 +1,105 @@
+{
+    "mockBidRequest": {
+        "id": "test-request-id",
+        "tmax": 500,
+        "at": 1,
+        "cur": [
+            "EUR"
+        ],
+        "regs": {
+            "ext": {
+                "gdpr": 1
+            }
+        },
+        "user": {
+            "ext": {
+                "consent": "CO-X2XiO_eyUoAsAxBFRBECsA"
+            }
+        },
+        "device": {
+            "ip": "123.123.123.123",
+            "ua": "test-user-agent"
+        },
+        "site": {
+            "page": "https://example.com/page",
+            "domain": "example.com"
+        },
+        "imp": [
+            {
+                "id": "test-imp-id",
+                "banner": {
+                    "h": 50,
+                    "w": 320
+                },
+                "ext": {
+                    "bidder": {
+                        "apiKey": "test-api-key",
+                        "placement": "test-placement",
+                        "test": "1"
+                    }
+                }
+            }
+        ]
+    },
+    "httpCalls": [
+        {
+            "expectedRequest": {
+                "uri": "http://example.com/?t=test-api-key",
+                "headers": {
+                    "Content-Type": [
+                        "application/json;charset=utf-8"
+                    ],
+                    "Accept": [
+                        "application/json"
+                    ],
+                    "User-Agent": [
+                        "test-user-agent"
+                    ],
+                    "X-Forwarded-For": [
+                        "123.123.123.123"
+                    ],
+                    "Referer": [
+                        "https://example.com/page"
+                    ]
+                },
+                "body": {
+                    "request_id": "test-request-id",
+                    "timeout": 2000,
+                    "referer": "https://example.com/page",
+                    "referer_canonical": "example.com",
+                    "consent_string": "CO-X2XiO_eyUoAsAxBFRBECsA",
+                    "consent_required": true,
+                    "placement": "test-placement",
+                    "test": "1"
+                },
+                "impIDs":["test-imp-id"]
+            },
+            "mockResponse": {
+                "status": 200,
+                "body": {
+                    "ad": "<div>test ad</div>",
+                    "cpm": 1.5,
+                    "currency": "EUR",
+                    "requestId": "test-request-id"
+                }
+            }
+        }
+    ],
+    "expectedBidResponses": [
+        {
+            "currency": "EUR",
+            "bids": [
+                {
+                    "bid": {
+                        "id": "test-request-id",
+                        "impid": "test-imp-id",
+                        "price": 1.5,
+                        "adm": "<div>test ad</div>",
+                        "crid": "test-request-id"
+                    },
+                    "type": "banner"
+                }
+            ]
+        }
+    ]
+}
\ No newline at end of file
diff --git a/adapters/missena/missenatest/exemplary/valid-imp-error-imp.json b/adapters/missena/missenatest/exemplary/valid-imp-error-imp.json
new file mode 100644
index 00000000000..61be3f78c4c
--- /dev/null
+++ b/adapters/missena/missenatest/exemplary/valid-imp-error-imp.json
@@ -0,0 +1,129 @@
+{
+    "mockBidRequest": {
+        "id": "test-request-id",
+        "tmax": 500,
+        "at": 1,
+        "cur": [
+            "EUR"
+        ],
+        "regs": {
+            "ext": {
+                "gdpr": 1
+            }
+        },
+        "user": {
+            "ext": {
+                "consent": "CO-X2XiO_eyUoAsAxBFRBECsA"
+            }
+        },
+        "device": {
+            "ip": "123.123.123.123",
+            "ua": "test-user-agent"
+        },
+        "site": {
+            "page": "https://example.com/page",
+            "domain": "example.com"
+        },
+        "imp": [
+            {
+                "id": "test-imp-id-1",
+                "banner": {
+                    "h": 50,
+                    "w": 320
+                },
+                "ext": {
+                    "bidder": {
+                        "apiKey": "test-api-key",
+                        "placement": "test-placement-1",
+                        "test": "1"
+                    }
+                }
+            },
+            {
+                "id": "test-imp-id-2",
+                "banner": {
+                    "h": 50,
+                    "w": 320
+                },
+                "ext": {
+                    "bidder": {
+                        "apiKey": "test-api-key",
+                        "placement": "test-placement-2",
+                        "test": "1"
+                    }
+                }
+            },
+            {
+                "id": "test-imp-id-3",
+                "banner": {
+                    "h": 50,
+                    "w": 320
+                },
+                "ext": {
+                    "bidder": "abc"
+                }
+            }
+        ]
+    },
+    "httpCalls": [
+        {
+            "expectedRequest": {
+                "uri": "http://example.com/?t=test-api-key",
+                "headers": {
+                    "Content-Type": [
+                        "application/json;charset=utf-8"
+                    ],
+                    "Accept": [
+                        "application/json"
+                    ],
+                    "User-Agent": [
+                        "test-user-agent"
+                    ],
+                    "X-Forwarded-For": [
+                        "123.123.123.123"
+                    ],
+                    "Referer": [
+                        "https://example.com/page"
+                    ]
+                },
+                "body": {
+                    "request_id": "test-request-id",
+                    "timeout": 2000,
+                    "referer": "https://example.com/page",
+                    "referer_canonical": "example.com",
+                    "consent_string": "CO-X2XiO_eyUoAsAxBFRBECsA",
+                    "consent_required": true,
+                    "placement": "test-placement-1",
+                    "test": "1"
+                },
+                "impIDs": ["test-imp-id-1"]
+            },
+            "mockResponse": {
+                "status": 200,
+                "body": {
+                    "ad": "<div>test ad</div>",
+                    "cpm": 1.5,
+                    "currency": "EUR",
+                    "requestId": "test-request-id"
+                }
+            }
+        }
+    ],
+    "expectedBidResponses": [
+        {
+            "currency": "EUR",
+            "bids": [
+                {
+                    "bid": {
+                        "id": "test-request-id",
+                        "impid": "test-imp-id-1",
+                        "price": 1.5,
+                        "adm": "<div>test ad</div>",
+                        "crid": "test-request-id"
+                    },
+                    "type": "banner"
+                }
+            ]
+        }
+    ]
+}
\ No newline at end of file
diff --git a/adapters/missena/missenatest/supplemental/error-ext-bidder.json b/adapters/missena/missenatest/supplemental/error-ext-bidder.json
new file mode 100644
index 00000000000..fdc08f4704b
--- /dev/null
+++ b/adapters/missena/missenatest/supplemental/error-ext-bidder.json
@@ -0,0 +1,25 @@
+{
+    "mockBidRequest": {
+        "id": "test-request-id",
+        "site": {
+            "page": "https://publisher.com/url"
+        },
+        "user": {
+            "buyeruid": "1"
+        },
+        "imp": [
+            {
+                "id": "test-imp-id",
+                "ext": {
+                    "bidder": "abc"
+                }
+            }
+        ]
+    },
+    "expectedMakeRequestsErrors": [
+        {
+            "value": "Error parsing missenaExt parameters",
+            "comparison": "literal"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/adapters/missena/missenatest/supplemental/error-imp-ext.json b/adapters/missena/missenatest/supplemental/error-imp-ext.json
new file mode 100644
index 00000000000..3905efa6bab
--- /dev/null
+++ b/adapters/missena/missenatest/supplemental/error-imp-ext.json
@@ -0,0 +1,23 @@
+{
+    "mockBidRequest": {
+        "id": "test-request-id",
+        "site": {
+            "page": "https://publisher.com/url"
+        },
+        "user": {
+            "buyeruid": "1"
+        },
+        "imp": [
+            {
+                "id": "test-imp-id",
+                "ext": "error"
+            }
+        ]
+    },
+    "expectedMakeRequestsErrors": [
+        {
+            "value": "Error parsing bidderExt object",
+            "comparison": "literal"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/adapters/missena/missenatest/supplemental/status-204.json b/adapters/missena/missenatest/supplemental/status-204.json
new file mode 100644
index 00000000000..59070ab4ecb
--- /dev/null
+++ b/adapters/missena/missenatest/supplemental/status-204.json
@@ -0,0 +1,83 @@
+{
+    "mockBidRequest": {
+        "id": "test-request-id",
+        "tmax": 500,
+        "at": 1,
+        "cur": [
+            "EUR"
+        ],
+        "regs": {
+            "ext": {
+                "gdpr": 1
+            }
+        },
+        "user": {
+            "ext": {
+                "consent": "CO-X2XiO_eyUoAsAxBFRBECsA"
+            }
+        },
+        "device": {
+            "ip": "123.123.123.123",
+            "ua": "test-user-agent"
+        },
+        "site": {
+            "page": "https://example.com/page",
+            "domain": "example.com"
+        },
+        "imp": [
+            {
+                "id": "test-imp-id",
+                "banner": {
+                    "h": 50,
+                    "w": 320
+                },
+                "ext": {
+                    "bidder": {
+                        "apiKey": "test-api-key",
+                        "placement": "test-placement",
+                        "test": "1"
+                    }
+                }
+            }
+        ]
+    },
+    "httpCalls": [
+        {
+            "expectedRequest": {
+                "uri": "http://example.com/?t=test-api-key",
+                "headers": {
+                    "Content-Type": [
+                        "application/json;charset=utf-8"
+                    ],
+                    "Accept": [
+                        "application/json"
+                    ],
+                    "User-Agent": [
+                        "test-user-agent"
+                    ],
+                    "X-Forwarded-For": [
+                        "123.123.123.123"
+                    ],
+                    "Referer": [
+                        "https://example.com/page"
+                    ]
+                },
+                "body": {
+                    "request_id": "test-request-id",
+                    "timeout": 2000,
+                    "referer": "https://example.com/page",
+                    "referer_canonical": "example.com",
+                    "consent_string": "CO-X2XiO_eyUoAsAxBFRBECsA",
+                    "consent_required": true,
+                    "placement": "test-placement",
+                    "test": "1"
+                },
+                "impIDs":["test-imp-id"]
+            },
+            "mockResponse": {
+                "status": 204
+            }
+        }
+    ],
+    "expectedBidResponses": []
+}
\ No newline at end of file
diff --git a/adapters/missena/missenatest/supplemental/status-400.json b/adapters/missena/missenatest/supplemental/status-400.json
new file mode 100644
index 00000000000..23a153208e3
--- /dev/null
+++ b/adapters/missena/missenatest/supplemental/status-400.json
@@ -0,0 +1,89 @@
+{
+    "mockBidRequest": {
+      "id": "test-request-id",
+      "tmax": 500,
+      "at": 1,
+      "cur": [
+        "EUR"
+      ],
+      "regs": {
+        "ext": {
+          "gdpr": 1
+        }
+      },
+      "user": {
+        "ext": {
+          "consent": "CO-X2XiO_eyUoAsAxBFRBECsA"
+        }
+      },
+      "device": {
+        "ip": "123.123.123.123",
+        "ua": "test-user-agent"
+      },
+      "site": {
+        "page": "https://example.com/page",
+        "domain": "example.com"
+      },
+      "imp": [
+        {
+          "id": "test-imp-id",
+          "banner": {
+            "h": 50,
+            "w": 320
+          },
+          "ext": {
+            "bidder": {
+              "apiKey": "test-api-key",
+              "placement": "test-placement",
+              "test": "1"
+            }
+          }
+        }
+      ]
+    },
+    "httpCalls": [
+      {
+        "expectedRequest": {
+          "uri": "http://example.com/?t=test-api-key",
+          "headers": {
+            "Content-Type": [
+              "application/json;charset=utf-8"
+            ],
+            "Accept": [
+              "application/json"
+            ],
+            "User-Agent": [
+              "test-user-agent"
+            ],
+            "X-Forwarded-For": [
+              "123.123.123.123"
+            ],
+            "Referer": [
+              "https://example.com/page"
+            ]
+          },
+          "body": {
+            "request_id": "test-request-id",
+            "timeout": 2000,
+            "referer": "https://example.com/page",
+            "referer_canonical": "example.com",
+            "consent_string": "CO-X2XiO_eyUoAsAxBFRBECsA",
+            "consent_required": true,
+            "placement": "test-placement",
+            "test": "1"
+          },
+          "impIDs":["test-imp-id"]
+        },
+        "mockResponse": {
+          "status": 400,
+          "body": "Bad request from publisher."
+        }
+      }
+    ],
+    "expectedMakeBidsErrors": [
+      {
+        "value": "Unexpected status code: 400. Bad request from publisher. Run with request.debug = 1 for more info.",
+        "comparison": "literal"
+      }
+    ]
+  }
\ No newline at end of file
diff --git a/adapters/missena/missenatest/supplemental/status-not-200.json b/adapters/missena/missenatest/supplemental/status-not-200.json
new file mode 100644
index 00000000000..8c913791fc3
--- /dev/null
+++ b/adapters/missena/missenatest/supplemental/status-not-200.json
@@ -0,0 +1,89 @@
+{
+    "mockBidRequest": {
+        "id": "test-request-id",
+        "tmax": 500,
+        "at": 1,
+        "cur": [
+            "EUR"
+        ],
+        "regs": {
+            "ext": {
+                "gdpr": 1
+            }
+        },
+        "user": {
+            "ext": {
+                "consent": "CO-X2XiO_eyUoAsAxBFRBECsA"
+            }
+        },
+        "device": {
+            "ip": "123.123.123.123",
+            "ua": "test-user-agent"
+        },
+        "site": {
+            "page": "https://example.com/page",
+            "domain": "example.com"
+        },
+        "imp": [
+            {
+                "id": "test-imp-id",
+                "banner": {
+                    "h": 50,
+                    "w": 320
+                },
+                "ext": {
+                    "bidder": {
+                        "apiKey": "test-api-key",
+                        "placement": "test-placement",
+                        "test": "1"
+                    }
+                }
+            }
+        ]
+    },
+    "httpCalls": [
+        {
+            "expectedRequest": {
+                "uri": "http://example.com/?t=test-api-key",
+                "headers": {
+                    "Content-Type": [
+                        "application/json;charset=utf-8"
+                    ],
+                    "Accept": [
+                        "application/json"
+                    ],
+                    "User-Agent": [
+                        "test-user-agent"
+                    ],
+                    "X-Forwarded-For": [
+                        "123.123.123.123"
+                    ],
+                    "Referer": [
+                        "https://example.com/page"
+                    ]
+                },
+                "body": {
+                    "request_id": "test-request-id",
+                    "timeout": 2000,
+                    "referer": "https://example.com/page",
+                    "referer_canonical": "example.com",
+                    "consent_string": "CO-X2XiO_eyUoAsAxBFRBECsA",
+                    "consent_required": true,
+                    "placement": "test-placement",
+                    "test": "1"
+                },
+                "impIDs":["test-imp-id"]
+            },
+            "mockResponse": {
+                "status": 404,
+                "body": {}
+            }
+        }
+    ],
+    "expectedMakeBidsErrors": [
+        {
+            "value": "Unexpected status code: 404. Run with request.debug = 1 for more info.",
+            "comparison": "literal"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/adapters/missena/params_test.go b/adapters/missena/params_test.go
new file mode 100644
index 00000000000..393561b43cf
--- /dev/null
+++ b/adapters/missena/params_test.go
@@ -0,0 +1,50 @@
+package missena
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+)
+
+func TestValidParams(t *testing.T) {
+	validator, err := openrtb_ext.NewBidderParamsValidator("../../static/bidder-params")
+	if err != nil {
+		t.Fatalf("Failed to fetch the json schema. %v", err)
+	}
+
+	for _, p := range validParams {
+		if err := validator.Validate(openrtb_ext.BidderMissena, json.RawMessage(p)); err != nil {
+			t.Errorf("Schema rejected valid params: %s", p)
+		}
+	}
+}
+
+func TestInvalidParams(t *testing.T) {
+	validator, err := openrtb_ext.NewBidderParamsValidator("../../static/bidder-params")
+	if err != nil {
+		t.Fatalf("Failed to fetch the json schema. %v", err)
+	}
+
+	for _, p := range invalidParams {
+		if err := validator.Validate(openrtb_ext.BidderMissena, json.RawMessage(p)); err == nil {
+			t.Errorf("Schema allowed invalid params: %s", p)
+		}
+	}
+}
+
+var validParams = []string{
+	`{"apiKey": "PA-123456"}`,
+	`{"apiKey": "PA-123456", "placement": "sticky"}`,
+	`{"apiKey": "PA-123456", "test": "native"}`,
+}
+
+var invalidParams = []string{
+	`{"apiKey": ""}`,
+	`{"apiKey": 42}`,
+	`{"placement": 111}`,
+	`{"placement": "sticky"}`,
+	`{"apiKey": "PA-123456", "placement": 111}`,
+	`{"test": "native"}`,
+	`{"apiKey": "PA-123456", "test": 111}`,
+}
diff --git a/adapters/mobfoxpb/mobfoxpb.go b/adapters/mobfoxpb/mobfoxpb.go
index b7630d7f9e1..538e7f7bcee 100644
--- a/adapters/mobfoxpb/mobfoxpb.go
+++ b/adapters/mobfoxpb/mobfoxpb.go
@@ -8,10 +8,11 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
@@ -113,7 +114,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/mobfoxpb/mobfoxpb_test.go b/adapters/mobfoxpb/mobfoxpb_test.go
index b3aa4ae4b2c..cbcfd29ebc2 100644
--- a/adapters/mobfoxpb/mobfoxpb_test.go
+++ b/adapters/mobfoxpb/mobfoxpb_test.go
@@ -3,9 +3,9 @@ package mobfoxpb
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/mobfoxpb/mobfoxpbtest/supplemental/bad_response.json b/adapters/mobfoxpb/mobfoxpbtest/supplemental/bad_response.json
index e4f246e7e0d..51a4eae8ef4 100644
--- a/adapters/mobfoxpb/mobfoxpbtest/supplemental/bad_response.json
+++ b/adapters/mobfoxpb/mobfoxpbtest/supplemental/bad_response.json
@@ -79,7 +79,7 @@
     ],
     "expectedMakeBidsErrors": [
         {
-            "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+            "value": "expect { or n, but found \"",
             "comparison": "literal"
         }
     ]
diff --git a/adapters/mobfoxpb/params_test.go b/adapters/mobfoxpb/params_test.go
index ea785163609..52b9ffb6273 100644
--- a/adapters/mobfoxpb/params_test.go
+++ b/adapters/mobfoxpb/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // TestValidParams makes sure that the mobfoxpb schema accepts all imp.ext fields which we intend to support.
diff --git a/adapters/mobilefuse/mobilefuse.go b/adapters/mobilefuse/mobilefuse.go
index 6d0ab2ec3f5..5670c7157cc 100644
--- a/adapters/mobilefuse/mobilefuse.go
+++ b/adapters/mobilefuse/mobilefuse.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type MobileFuseAdapter struct {
@@ -75,7 +76,7 @@ func (adapter *MobileFuseAdapter) MakeBids(incomingRequest *openrtb2.BidRequest,
 
 	var incomingBidResponse openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &incomingBidResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &incomingBidResponse); err != nil {
 		return nil, []error{err}
 	}
 
@@ -142,14 +143,14 @@ func getFirstMobileFuseExtension(request *openrtb2.BidRequest) (*openrtb_ext.Ext
 	for _, imp := range request.Imp {
 		var bidder_imp_extension adapters.ExtImpBidder
 
-		err := json.Unmarshal(imp.Ext, &bidder_imp_extension)
+		err := jsonutil.Unmarshal(imp.Ext, &bidder_imp_extension)
 
 		if err != nil {
 			errs = append(errs, err)
 			continue
 		}
 
-		err = json.Unmarshal(bidder_imp_extension.Bidder, &mobileFuseImpExtension)
+		err = jsonutil.Unmarshal(bidder_imp_extension.Bidder, &mobileFuseImpExtension)
 
 		if err != nil {
 			errs = append(errs, err)
@@ -165,12 +166,12 @@ func getFirstMobileFuseExtension(request *openrtb2.BidRequest) (*openrtb_ext.Ext
 func getMobileFuseExtensionForImp(imp *openrtb2.Imp, mobileFuseImpExtension *openrtb_ext.ExtImpMobileFuse) error {
 	var bidder_imp_extension adapters.ExtImpBidder
 
-	err := json.Unmarshal(imp.Ext, &bidder_imp_extension)
+	err := jsonutil.Unmarshal(imp.Ext, &bidder_imp_extension)
 	if err != nil {
 		return err
 	}
 
-	return json.Unmarshal(bidder_imp_extension.Bidder, &mobileFuseImpExtension)
+	return jsonutil.Unmarshal(bidder_imp_extension.Bidder, &mobileFuseImpExtension)
 }
 
 func (adapter *MobileFuseAdapter) getEndpoint(ext *openrtb_ext.ExtImpMobileFuse) (string, error) {
@@ -201,7 +202,7 @@ func getValidImps(bidRequest *openrtb2.BidRequest, ext *openrtb_ext.ExtImpMobile
 			imp.TagID = strconv.Itoa(ext.PlacementId)
 
 			var extSkadn ExtSkadn
-			err = json.Unmarshal(imp.Ext, &extSkadn)
+			err = jsonutil.Unmarshal(imp.Ext, &extSkadn)
 			if err != nil {
 				return nil, err
 			}
@@ -229,7 +230,7 @@ func getValidImps(bidRequest *openrtb2.BidRequest, ext *openrtb_ext.ExtImpMobile
 func getBidType(bid openrtb2.Bid) openrtb_ext.BidType {
 	if bid.Ext != nil {
 		var bidExt BidExt
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil {
 			if bidExt.Mf.MediaType == "video" {
 				return openrtb_ext.BidTypeVideo
diff --git a/adapters/mobilefuse/mobilefuse_test.go b/adapters/mobilefuse/mobilefuse_test.go
index e1a3a018bb9..41595c2256d 100644
--- a/adapters/mobilefuse/mobilefuse_test.go
+++ b/adapters/mobilefuse/mobilefuse_test.go
@@ -3,9 +3,9 @@ package mobilefuse
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/mobilefuse/mobilefusetest/supplemental/bad-ext-bidder.json b/adapters/mobilefuse/mobilefusetest/supplemental/bad-ext-bidder.json
index 61cf115faea..759fffc7e8a 100644
--- a/adapters/mobilefuse/mobilefusetest/supplemental/bad-ext-bidder.json
+++ b/adapters/mobilefuse/mobilefusetest/supplemental/bad-ext-bidder.json
@@ -1,7 +1,7 @@
 {
     "expectedMakeRequestsErrors": [
         {
-            "value": "json: cannot unmarshal string into Go value of type openrtb_ext.ExtImpMobileFuse",
+            "value": "expect { or n, but found \"",
             "comparison": "literal"
         }
     ],
diff --git a/adapters/mobilefuse/mobilefusetest/supplemental/bad-ext.json b/adapters/mobilefuse/mobilefusetest/supplemental/bad-ext.json
index f0c23aa27e3..598f1606796 100644
--- a/adapters/mobilefuse/mobilefusetest/supplemental/bad-ext.json
+++ b/adapters/mobilefuse/mobilefusetest/supplemental/bad-ext.json
@@ -1,7 +1,7 @@
 {
     "expectedMakeRequestsErrors": [
         {
-            "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+            "value": "expect { or n, but found \"",
             "comparison": "literal"
         }
     ],
diff --git a/adapters/mobilefuse/params_test.go b/adapters/mobilefuse/params_test.go
index 8599af5ece0..363830c0537 100644
--- a/adapters/mobilefuse/params_test.go
+++ b/adapters/mobilefuse/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(test *testing.T) {
diff --git a/adapters/motorik/motorik.go b/adapters/motorik/motorik.go
index 73cfccde107..5256605ec8b 100644
--- a/adapters/motorik/motorik.go
+++ b/adapters/motorik/motorik.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -82,13 +83,13 @@ func (a *adapter) MakeRequests(openRTBRequest *openrtb2.BidRequest, reqInfo *ada
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtMotorik, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error parsing motorikExt - " + err.Error(),
 		}
 	}
 	var motorikExt openrtb_ext.ExtMotorik
-	if err := json.Unmarshal(bidderExt.Bidder, &motorikExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &motorikExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error parsing bidderExt - " + err.Error(),
 		}
@@ -124,7 +125,7 @@ func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/motorik/motorik_test.go b/adapters/motorik/motorik_test.go
index 5bdd102ddd3..5d99d05012e 100644
--- a/adapters/motorik/motorik_test.go
+++ b/adapters/motorik/motorik_test.go
@@ -3,9 +3,9 @@ package motorik
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/motorik/motoriktest/supplemental/invalid-bidder-ext-object.json b/adapters/motorik/motoriktest/supplemental/invalid-bidder-ext-object.json
index fb89a5894a5..016fbd43490 100644
--- a/adapters/motorik/motoriktest/supplemental/invalid-bidder-ext-object.json
+++ b/adapters/motorik/motoriktest/supplemental/invalid-bidder-ext-object.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "Error parsing bidderExt - json: cannot unmarshal string into Go value of type openrtb_ext.ExtMotorik",
+      "value": "Error parsing bidderExt - expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/motorik/motoriktest/supplemental/invalid-motorik-ext-object.json b/adapters/motorik/motoriktest/supplemental/invalid-motorik-ext-object.json
index 1b2cce8db49..ee1d473feab 100644
--- a/adapters/motorik/motoriktest/supplemental/invalid-motorik-ext-object.json
+++ b/adapters/motorik/motoriktest/supplemental/invalid-motorik-ext-object.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "Error parsing motorikExt - json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "Error parsing motorikExt - expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/motorik/params_test.go b/adapters/motorik/params_test.go
index 2cfdf0f965b..9c8dc2f5d18 100644
--- a/adapters/motorik/params_test.go
+++ b/adapters/motorik/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/nextmillennium/nextmillennium.go b/adapters/nextmillennium/nextmillennium.go
index 38d1c72549e..cae3e03be19 100644
--- a/adapters/nextmillennium/nextmillennium.go
+++ b/adapters/nextmillennium/nextmillennium.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -74,13 +75,13 @@ func getImpressionsInfo(imps []openrtb2.Imp) (resImps []*openrtb_ext.ImpExtNextM
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ImpExtNextMillennium, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 	var nextMillenniumExt openrtb_ext.ImpExtNextMillennium
-	if err := json.Unmarshal(bidderExt.Bidder, &nextMillenniumExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &nextMillenniumExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -169,7 +170,7 @@ func (adapter *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		msg = fmt.Sprintf("Bad server response: %d", err)
 		return nil, []error{&errortypes.BadServerResponse{Message: msg}}
 	}
@@ -200,7 +201,7 @@ func (adapter *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
 	var info nmExtNMM
 	if config.ExtraAdapterInfo != "" {
-		if err := json.Unmarshal([]byte(config.ExtraAdapterInfo), &info); err != nil {
+		if err := jsonutil.Unmarshal([]byte(config.ExtraAdapterInfo), &info); err != nil {
 			return nil, fmt.Errorf("invalid extra info: %v", err)
 		}
 	}
diff --git a/adapters/nextmillennium/nextmillennium_test.go b/adapters/nextmillennium/nextmillennium_test.go
index 6e51edc5e17..1ffe49540bf 100644
--- a/adapters/nextmillennium/nextmillennium_test.go
+++ b/adapters/nextmillennium/nextmillennium_test.go
@@ -3,9 +3,9 @@ package nextmillennium
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/nextmillennium/nextmillenniumtest/supplemental/ext.json b/adapters/nextmillennium/nextmillenniumtest/supplemental/ext.json
index 58fefc6349f..68584236617 100644
--- a/adapters/nextmillennium/nextmillenniumtest/supplemental/ext.json
+++ b/adapters/nextmillennium/nextmillenniumtest/supplemental/ext.json
@@ -26,8 +26,8 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/nextmillennium/params_test.go b/adapters/nextmillennium/params_test.go
index d8ae93d2c5a..3833c474a34 100644
--- a/adapters/nextmillennium/params_test.go
+++ b/adapters/nextmillennium/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/nobid/nobid.go b/adapters/nobid/nobid.go
index 9c91c78dd2b..811ef3363ed 100644
--- a/adapters/nobid/nobid.go
+++ b/adapters/nobid/nobid.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // NoBidAdapter - NoBid Adapter definition
@@ -73,7 +74,7 @@ func (a *NoBidAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRe
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/nobid/nobid_test.go b/adapters/nobid/nobid_test.go
index 8b48a303053..6b4a7346cff 100644
--- a/adapters/nobid/nobid_test.go
+++ b/adapters/nobid/nobid_test.go
@@ -3,9 +3,9 @@ package nobid
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/nobid/params_test.go b/adapters/nobid/params_test.go
index 395230df797..375237f3446 100644
--- a/adapters/nobid/params_test.go
+++ b/adapters/nobid/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/oms/oms.go b/adapters/oms/oms.go
index c2e7c394cb5..201162b5699 100644
--- a/adapters/oms/oms.go
+++ b/adapters/oms/oms.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -61,7 +62,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/oms/oms_test.go b/adapters/oms/oms_test.go
index 9c3c4119f10..e0555b3c755 100644
--- a/adapters/oms/oms_test.go
+++ b/adapters/oms/oms_test.go
@@ -3,9 +3,9 @@ package oms
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/oms/params_test.go b/adapters/oms/params_test.go
index daa78fe7ddf..00b92699455 100644
--- a/adapters/oms/params_test.go
+++ b/adapters/oms/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/oms.json
diff --git a/adapters/onetag/onetag.go b/adapters/onetag/onetag.go
index 938414c2759..c0972816e6a 100644
--- a/adapters/onetag/onetag.go
+++ b/adapters/onetag/onetag.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -76,14 +77,14 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 
 func getImpressionExt(imp openrtb2.Imp) (*openrtb_ext.ExtImpOnetag, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Bidder extension not provided or can't be unmarshalled",
 		}
 	}
 
 	var onetagExt openrtb_ext.ExtImpOnetag
-	if err := json.Unmarshal(bidderExt.Bidder, &onetagExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &onetagExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error while unmarshaling bidder extension",
 		}
@@ -110,7 +111,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/onetag/onetag_test.go b/adapters/onetag/onetag_test.go
index 7a1e539ca29..23a28717580 100644
--- a/adapters/onetag/onetag_test.go
+++ b/adapters/onetag/onetag_test.go
@@ -3,9 +3,9 @@ package onetag
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/onetag/params_test.go b/adapters/onetag/params_test.go
index bfc7c6ac27a..6ccf0606967 100644
--- a/adapters/onetag/params_test.go
+++ b/adapters/onetag/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/openweb/openweb.go b/adapters/openweb/openweb.go
index a1996d056b2..7a9914b2726 100644
--- a/adapters/openweb/openweb.go
+++ b/adapters/openweb/openweb.go
@@ -10,10 +10,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -50,12 +51,12 @@ func checkExtAndExtractOrg(request *openrtb2.BidRequest) (string, error) {
 	var err error
 	for _, imp := range request.Imp {
 		var bidderExt adapters.ExtImpBidder
-		if err = json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			return "", fmt.Errorf("unmarshal bidderExt: %w", err)
 		}
 
 		var impExt openrtb_ext.ExtImpOpenWeb
-		if err = json.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
 			return "", fmt.Errorf("unmarshal ExtImpOpenWeb: %w", err)
 		}
 
@@ -85,7 +86,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/openweb/openweb_test.go b/adapters/openweb/openweb_test.go
index 2a135acb1f0..a08788e7db8 100644
--- a/adapters/openweb/openweb_test.go
+++ b/adapters/openweb/openweb_test.go
@@ -3,9 +3,9 @@ package openweb
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/openweb/params_test.go b/adapters/openweb/params_test.go
index 82e2f9e5ed5..73fb20a7e9b 100644
--- a/adapters/openweb/params_test.go
+++ b/adapters/openweb/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/openweb.json
diff --git a/adapters/openx/openx.go b/adapters/openx/openx.go
index 83d50b2b56b..5ba3a2991cc 100644
--- a/adapters/openx/openx.go
+++ b/adapters/openx/openx.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const hbconfig = "hb_pbs_1.0.0"
@@ -117,14 +118,14 @@ func (a *OpenxAdapter) makeRequest(request *openrtb2.BidRequest) (*adapters.Requ
 // Mutate the imp to get it ready to send to openx.
 func preprocess(imp *openrtb2.Imp, reqExt *openxReqExt) error {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 
 	var openxExt openrtb_ext.ExtImpOpenx
-	if err := json.Unmarshal(bidderExt.Bidder, &openxExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &openxExt); err != nil {
 		return &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -143,7 +144,7 @@ func preprocess(imp *openrtb2.Imp, reqExt *openxReqExt) error {
 
 	// outgoing imp.ext should be same as incoming imp.ext minus prebid and bidder
 	impExt := openxImpExt{}
-	if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 		return &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -173,7 +174,7 @@ func preprocess(imp *openrtb2.Imp, reqExt *openxReqExt) error {
 
 	if imp.Video != nil {
 		videoCopy := *imp.Video
-		if bidderExt.Prebid != nil && bidderExt.Prebid.IsRewardedInventory != nil && *bidderExt.Prebid.IsRewardedInventory == 1 {
+		if imp.Rwdd == 1 {
 			videoCopy.Ext = json.RawMessage(`{"rewarded":1}`)
 		} else {
 			videoCopy.Ext = nil
@@ -202,7 +203,7 @@ func (a *OpenxAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRe
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -215,7 +216,7 @@ func (a *OpenxAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRe
 
 	if bidResp.Ext != nil {
 		var bidRespExt openxRespExt
-		if err := json.Unmarshal(bidResp.Ext, &bidRespExt); err == nil && bidRespExt.FledgeAuctionConfigs != nil {
+		if err := jsonutil.Unmarshal(bidResp.Ext, &bidRespExt); err == nil && bidRespExt.FledgeAuctionConfigs != nil {
 			bidResponse.FledgeAuctionConfigs = make([]*openrtb_ext.FledgeAuctionConfig, 0, len(bidRespExt.FledgeAuctionConfigs))
 			for impId, config := range bidRespExt.FledgeAuctionConfigs {
 				fledgeAuctionConfig := &openrtb_ext.FledgeAuctionConfig{
diff --git a/adapters/openx/openx_test.go b/adapters/openx/openx_test.go
index 6f3796929a5..092e9190f90 100644
--- a/adapters/openx/openx_test.go
+++ b/adapters/openx/openx_test.go
@@ -5,10 +5,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/openx/openxtest/exemplary/video-rewarded.json b/adapters/openx/openxtest/exemplary/video-rewarded.json
index f2eee34b465..58eadd7df9f 100644
--- a/adapters/openx/openxtest/exemplary/video-rewarded.json
+++ b/adapters/openx/openxtest/exemplary/video-rewarded.json
@@ -14,13 +14,11 @@
           }
         },
         "instl": 1,
+        "rwdd": 1,
         "ext": {
           "bidder": {
             "unit": "539439964",
             "delDomain": "se-demo-d.openx.net"
-          },
-          "prebid": {
-            "is_rewarded_inventory": 1
           }
         }
       }
@@ -46,7 +44,8 @@
                 }
               },
               "tagid": "539439964",
-              "instl": 1
+              "instl": 1,
+              "rwdd": 1
             }
           ],
           "ext": {
diff --git a/adapters/openx/params_test.go b/adapters/openx/params_test.go
index 8a093b0bff5..0becd9b206e 100644
--- a/adapters/openx/params_test.go
+++ b/adapters/openx/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/openx.json
diff --git a/adapters/operaads/operaads.go b/adapters/operaads/operaads.go
index 21aecd63226..47c372becaf 100644
--- a/adapters/operaads/operaads.go
+++ b/adapters/operaads/operaads.go
@@ -8,12 +8,13 @@ import (
 	"strings"
 	"text/template"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 )
@@ -57,14 +58,14 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 
 	for _, imp := range request.Imp {
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: err.Error(),
 			})
 			continue
 		}
 		var operaadsExt openrtb_ext.ImpExtOperaads
-		if err := json.Unmarshal(bidderExt.Bidder, &operaadsExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &operaadsExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -158,7 +159,7 @@ func convertImpression(imp *openrtb2.Imp) error {
 	}
 	if imp.Native != nil && imp.Native.Request != "" {
 		v := make(map[string]interface{})
-		err := json.Unmarshal([]byte(imp.Native.Request), &v)
+		err := jsonutil.Unmarshal([]byte(imp.Native.Request), &v)
 		if err != nil {
 			return err
 		}
@@ -214,7 +215,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var parsedResponse openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &parsedResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &parsedResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
 		}}
diff --git a/adapters/operaads/operaads_test.go b/adapters/operaads/operaads_test.go
index 4e51c8393aa..8614e77e7e4 100644
--- a/adapters/operaads/operaads_test.go
+++ b/adapters/operaads/operaads_test.go
@@ -3,9 +3,9 @@ package operaads
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/operaads/params_test.go b/adapters/operaads/params_test.go
index 1da80aa8ce3..b845fde89b3 100644
--- a/adapters/operaads/params_test.go
+++ b/adapters/operaads/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/operaads.json
diff --git a/adapters/oraki/oraki.go b/adapters/oraki/oraki.go
index 0e29aa9bd5e..db6876f2e03 100644
--- a/adapters/oraki/oraki.go
+++ b/adapters/oraki/oraki.go
@@ -6,9 +6,10 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -43,11 +44,11 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var orakiExt openrtb_ext.ImpExtOraki
 
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
-		if err := json.Unmarshal(bidderExt.Bidder, &orakiExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &orakiExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
@@ -110,7 +111,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/oraki/oraki_test.go b/adapters/oraki/oraki_test.go
index f801e9816ed..753357c29fd 100644
--- a/adapters/oraki/oraki_test.go
+++ b/adapters/oraki/oraki_test.go
@@ -3,9 +3,9 @@ package oraki
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/oraki/orakitest/supplemental/bad_response.json b/adapters/oraki/orakitest/supplemental/bad_response.json
index d8029b5ed6b..4fe8d572c46 100644
--- a/adapters/oraki/orakitest/supplemental/bad_response.json
+++ b/adapters/oraki/orakitest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/oraki/params_test.go b/adapters/oraki/params_test.go
index 15981de5fa7..24fc6ea29ef 100644
--- a/adapters/oraki/params_test.go
+++ b/adapters/oraki/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/orbidder/orbidder.go b/adapters/orbidder/orbidder.go
index 0e8edaeb0bb..b2f6705273f 100644
--- a/adapters/orbidder/orbidder.go
+++ b/adapters/orbidder/orbidder.go
@@ -8,10 +8,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type OrbidderAdapter struct {
@@ -68,14 +69,14 @@ func getValidImpressions(request *openrtb2.BidRequest, reqInfo *adapters.ExtraRe
 
 func preprocessExtensions(imp *openrtb2.Imp) error {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 
 	var orbidderExt openrtb_ext.ExtImpOrbidder
-	if err := json.Unmarshal(bidderExt.Bidder, &orbidderExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &orbidderExt); err != nil {
 		return &errortypes.BadInput{
 			Message: "Wrong orbidder bidder ext: " + err.Error(),
 		}
@@ -122,7 +123,7 @@ func (rcv OrbidderAdapter) MakeBids(_ *openrtb2.BidRequest, _ *adapters.RequestD
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/orbidder/orbidder_test.go b/adapters/orbidder/orbidder_test.go
index a97fc307c92..ce26bdd7f2b 100644
--- a/adapters/orbidder/orbidder_test.go
+++ b/adapters/orbidder/orbidder_test.go
@@ -8,10 +8,10 @@ import (
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/stretchr/testify/mock"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/orbidder/orbiddertest/supplemental/ext-unmarshall-error.json b/adapters/orbidder/orbiddertest/supplemental/ext-unmarshall-error.json
index 447e2985f92..6f9372baa9c 100644
--- a/adapters/orbidder/orbiddertest/supplemental/ext-unmarshall-error.json
+++ b/adapters/orbidder/orbiddertest/supplemental/ext-unmarshall-error.json
@@ -25,7 +25,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "Wrong orbidder bidder ext: json: cannot unmarshal array into Go struct field ExtImpOrbidder.accountId of type string",
+      "value": "Wrong orbidder bidder ext: cannot unmarshal openrtb_ext.ExtImpOrbidder.AccountId: expects \" or n, but found [",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/orbidder/orbiddertest/supplemental/valid-and-invalid-imps.json b/adapters/orbidder/orbiddertest/supplemental/valid-and-invalid-imps.json
index f12e26e18e2..8f95e6c5ec9 100644
--- a/adapters/orbidder/orbiddertest/supplemental/valid-and-invalid-imps.json
+++ b/adapters/orbidder/orbiddertest/supplemental/valid-and-invalid-imps.json
@@ -120,8 +120,8 @@
   ],
   "expectedMakeRequestsErrors": [
     {
-      "value": "unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/orbidder/params_test.go b/adapters/orbidder/params_test.go
index cd95e222aee..bb557faa2c6 100644
--- a/adapters/orbidder/params_test.go
+++ b/adapters/orbidder/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/orbidder.json
diff --git a/adapters/outbrain/outbrain.go b/adapters/outbrain/outbrain.go
index 9e588d8640c..612a9a0cbe3 100644
--- a/adapters/outbrain/outbrain.go
+++ b/adapters/outbrain/outbrain.go
@@ -8,10 +8,11 @@ import (
 	"github.com/prebid/openrtb/v20/native1"
 	nativeResponse "github.com/prebid/openrtb/v20/native1/response"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -35,11 +36,11 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 		imp := reqCopy.Imp[i]
 
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
-		if err := json.Unmarshal(bidderExt.Bidder, &outbrainExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &outbrainExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
@@ -107,7 +108,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -125,7 +126,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 			}
 			if bidType == openrtb_ext.BidTypeNative {
 				var nativePayload nativeResponse.Response
-				if err := json.Unmarshal(json.RawMessage(bid.AdM), &nativePayload); err != nil {
+				if err := jsonutil.Unmarshal(json.RawMessage(bid.AdM), &nativePayload); err != nil {
 					errs = append(errs, err)
 					continue
 				}
diff --git a/adapters/outbrain/outbrain_test.go b/adapters/outbrain/outbrain_test.go
index 4a42679f660..1e1fc1e803d 100644
--- a/adapters/outbrain/outbrain_test.go
+++ b/adapters/outbrain/outbrain_test.go
@@ -3,9 +3,9 @@ package outbrain
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/outbrain/params_test.go b/adapters/outbrain/params_test.go
index 666724cd6eb..e6d76d94728 100644
--- a/adapters/outbrain/params_test.go
+++ b/adapters/outbrain/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/ownadx/ownadx.go b/adapters/ownadx/ownadx.go
index 59bc0b68fab..737adfa30d4 100644
--- a/adapters/ownadx/ownadx.go
+++ b/adapters/ownadx/ownadx.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -65,14 +66,14 @@ func (adapter *adapter) buildEndpointURL(params *openrtb_ext.ExtImpOwnAdx) (stri
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpOwnAdx, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Bidder extension not valid or can't be unmarshalled",
 		}
 	}
 
 	var ownAdxExt openrtb_ext.ExtImpOwnAdx
-	if err := json.Unmarshal(bidderExt.Bidder, &ownAdxExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &ownAdxExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error while unmarshaling bidder extension",
 		}
@@ -143,7 +144,7 @@ func (adapter *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 		}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{
 			&errortypes.BadServerResponse{
 				Message: "Bad server response ",
diff --git a/adapters/ownadx/ownadx_test.go b/adapters/ownadx/ownadx_test.go
index 5995cdd10a7..6921e1ba123 100644
--- a/adapters/ownadx/ownadx_test.go
+++ b/adapters/ownadx/ownadx_test.go
@@ -3,9 +3,9 @@ package ownadx
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/pangle/pangle.go b/adapters/pangle/pangle.go
index b46e2c669b7..a86052d649d 100644
--- a/adapters/pangle/pangle.go
+++ b/adapters/pangle/pangle.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -81,13 +82,13 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 	requestCopy := *request
 	for _, imp := range request.Imp {
 		var impExt wrappedExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 			errs = append(errs, fmt.Errorf("failed unmarshalling imp ext (err)%s", err.Error()))
 			continue
 		}
 		// get token & networkIDs
 		var bidderImpExt openrtb_ext.ImpExtPangle
-		if err := json.Unmarshal(impExt.Bidder, &bidderImpExt); err != nil {
+		if err := jsonutil.Unmarshal(impExt.Bidder, &bidderImpExt); err != nil {
 			errs = append(errs, fmt.Errorf("failed unmarshalling bidder imp ext (err)%s", err.Error()))
 			continue
 		}
@@ -147,7 +148,7 @@ func getMediaTypeForBid(bid *openrtb2.Bid) (openrtb_ext.BidType, error) {
 	}
 
 	var bidExt pangleBidExt
-	if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+	if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 		return "", fmt.Errorf("invalid bid ext")
 	} else if bidExt.Pangle == nil || bidExt.Pangle.AdType == nil {
 		return "", fmt.Errorf("missing pangleExt/adtype in bid ext")
@@ -189,7 +190,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/pangle/pangle_test.go b/adapters/pangle/pangle_test.go
index 243bbadc90a..2143d4f90af 100644
--- a/adapters/pangle/pangle_test.go
+++ b/adapters/pangle/pangle_test.go
@@ -3,9 +3,9 @@ package pangle
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/pangle/param_test.go b/adapters/pangle/param_test.go
index e25b7d740c4..57acfb0609a 100644
--- a/adapters/pangle/param_test.go
+++ b/adapters/pangle/param_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/pgamssp/params_test.go b/adapters/pgamssp/params_test.go
index d2f06cbcfa8..ec95d47e5fa 100644
--- a/adapters/pgamssp/params_test.go
+++ b/adapters/pgamssp/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/pgamssp/pgamssp.go b/adapters/pgamssp/pgamssp.go
index 2f8360fb2e8..1b96edd5597 100644
--- a/adapters/pgamssp/pgamssp.go
+++ b/adapters/pgamssp/pgamssp.go
@@ -6,9 +6,10 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -43,10 +44,10 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var pgamExt openrtb_ext.ImpExtPgamSsp
 
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			return nil, []error{err}
 		}
-		if err = json.Unmarshal(bidderExt.Bidder, &pgamExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &pgamExt); err != nil {
 			return nil, []error{err}
 		}
 
@@ -107,7 +108,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/pgamssp/pgamssp_test.go b/adapters/pgamssp/pgamssp_test.go
index 10e72f5d093..450eb0f0b5f 100644
--- a/adapters/pgamssp/pgamssp_test.go
+++ b/adapters/pgamssp/pgamssp_test.go
@@ -3,9 +3,9 @@ package pgamssp
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/pgamssp/pgamssptest/supplemental/bad_response.json b/adapters/pgamssp/pgamssptest/supplemental/bad_response.json
index 53446fb8ab9..36f5e7ba4d0 100644
--- a/adapters/pgamssp/pgamssptest/supplemental/bad_response.json
+++ b/adapters/pgamssp/pgamssptest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/playdigo/params_test.go b/adapters/playdigo/params_test.go
index ba18c1fb216..cb0fa0c6815 100644
--- a/adapters/playdigo/params_test.go
+++ b/adapters/playdigo/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/playdigo/playdigo.go b/adapters/playdigo/playdigo.go
index d8450bdd798..fe0091e2cbd 100644
--- a/adapters/playdigo/playdigo.go
+++ b/adapters/playdigo/playdigo.go
@@ -7,9 +7,10 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -44,11 +45,11 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var playdigoExt openrtb_ext.ImpExtPlaydigo
 
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
-		if err := json.Unmarshal(bidderExt.Bidder, &playdigoExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &playdigoExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
@@ -116,7 +117,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/playdigo/playdigo_test.go b/adapters/playdigo/playdigo_test.go
index f7424ca583d..275924f1936 100644
--- a/adapters/playdigo/playdigo_test.go
+++ b/adapters/playdigo/playdigo_test.go
@@ -3,9 +3,9 @@ package playdigo
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/playdigo/playdigotest/supplemental/bad_response.json b/adapters/playdigo/playdigotest/supplemental/bad_response.json
index afa17aa2e87..4e4b3ef9671 100644
--- a/adapters/playdigo/playdigotest/supplemental/bad_response.json
+++ b/adapters/playdigo/playdigotest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/pubmatic/params_test.go b/adapters/pubmatic/params_test.go
index d5d1d46842f..531416f1877 100644
--- a/adapters/pubmatic/params_test.go
+++ b/adapters/pubmatic/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/pubmatic.json
diff --git a/adapters/pubmatic/pubmatic.go b/adapters/pubmatic/pubmatic.go
index 9c5799eece7..bcff41d43f1 100644
--- a/adapters/pubmatic/pubmatic.go
+++ b/adapters/pubmatic/pubmatic.go
@@ -9,11 +9,12 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
@@ -260,12 +261,12 @@ func parseImpressionObject(imp *openrtb2.Imp, extractWrapperExtFromImp, extractP
 	}
 
 	var bidderExt ExtImpBidderPubmatic
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return wrapExt, pubID, err
 	}
 
 	var pubmaticExt openrtb_ext.ExtImpPubmatic
-	if err := json.Unmarshal(bidderExt.Bidder, &pubmaticExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &pubmaticExt); err != nil {
 		return wrapExt, pubID, err
 	}
 
@@ -275,7 +276,7 @@ func parseImpressionObject(imp *openrtb2.Imp, extractWrapperExtFromImp, extractP
 
 	// Parse Wrapper Extension only once per request
 	if extractWrapperExtFromImp && len(pubmaticExt.WrapExt) != 0 {
-		err := json.Unmarshal([]byte(pubmaticExt.WrapExt), &wrapExt)
+		err := jsonutil.Unmarshal([]byte(pubmaticExt.WrapExt), &wrapExt)
 		if err != nil {
 			return wrapExt, pubID, fmt.Errorf("Error in Wrapper Parameters = %v  for ImpID = %v WrapperExt = %v", err.Error(), imp.ID, string(pubmaticExt.WrapExt))
 		}
@@ -346,7 +347,7 @@ func extractPubmaticExtFromRequest(request *openrtb2.BidRequest) (extRequestAdSe
 	}
 
 	reqExt := &openrtb_ext.ExtRequest{}
-	err := json.Unmarshal(request.Ext, &reqExt)
+	err := jsonutil.Unmarshal(request.Ext, &reqExt)
 	if err != nil {
 		return pmReqExt, fmt.Errorf("error decoding Request.ext : %s", err.Error())
 	}
@@ -354,7 +355,7 @@ func extractPubmaticExtFromRequest(request *openrtb2.BidRequest) (extRequestAdSe
 
 	reqExtBidderParams := make(map[string]json.RawMessage)
 	if reqExt.Prebid.BidderParams != nil {
-		err = json.Unmarshal(reqExt.Prebid.BidderParams, &reqExtBidderParams)
+		err = jsonutil.Unmarshal(reqExt.Prebid.BidderParams, &reqExtBidderParams)
 		if err != nil {
 			return pmReqExt, err
 		}
@@ -363,7 +364,7 @@ func extractPubmaticExtFromRequest(request *openrtb2.BidRequest) (extRequestAdSe
 	//get request ext bidder params
 	if wrapperObj, present := reqExtBidderParams["wrapper"]; present && len(wrapperObj) != 0 {
 		wrpExt := &pubmaticWrapperExt{}
-		err = json.Unmarshal(wrapperObj, wrpExt)
+		err = jsonutil.Unmarshal(wrapperObj, wrpExt)
 		if err != nil {
 			return pmReqExt, err
 		}
@@ -372,7 +373,7 @@ func extractPubmaticExtFromRequest(request *openrtb2.BidRequest) (extRequestAdSe
 
 	if acatBytes, ok := reqExtBidderParams["acat"]; ok {
 		var acat []string
-		err = json.Unmarshal(acatBytes, &acat)
+		err = jsonutil.Unmarshal(acatBytes, &acat)
 		if err != nil {
 			return pmReqExt, err
 		}
@@ -437,7 +438,7 @@ func (a *PubmaticAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externa
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -458,7 +459,7 @@ func (a *PubmaticAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externa
 			}
 
 			var bidExt *pubmaticBidExt
-			err := json.Unmarshal(bid.Ext, &bidExt)
+			err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 			if err != nil {
 				errs = append(errs, err)
 			} else if bidExt != nil {
@@ -489,7 +490,7 @@ func (a *PubmaticAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externa
 
 	if bidResp.Ext != nil {
 		var bidRespExt respExt
-		if err := json.Unmarshal(bidResp.Ext, &bidRespExt); err == nil && bidRespExt.FledgeAuctionConfigs != nil {
+		if err := jsonutil.Unmarshal(bidResp.Ext, &bidRespExt); err == nil && bidRespExt.FledgeAuctionConfigs != nil {
 			bidResponse.FledgeAuctionConfigs = make([]*openrtb_ext.FledgeAuctionConfig, 0, len(bidRespExt.FledgeAuctionConfigs))
 			for impId, config := range bidRespExt.FledgeAuctionConfigs {
 				fledgeAuctionConfig := &openrtb_ext.FledgeAuctionConfig{
@@ -506,7 +507,7 @@ func (a *PubmaticAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externa
 func getNativeAdm(adm string) (string, error) {
 	var err error
 	nativeAdm := make(map[string]interface{})
-	err = json.Unmarshal([]byte(adm), &nativeAdm)
+	err = jsonutil.Unmarshal([]byte(adm), &nativeAdm)
 	if err != nil {
 		return adm, errors.New("unable to unmarshal native adm")
 	}
@@ -528,7 +529,7 @@ func getNativeAdm(adm string) (string, error) {
 func getMapFromJSON(source json.RawMessage) map[string]interface{} {
 	if source != nil {
 		dataMap := make(map[string]interface{})
-		err := json.Unmarshal(source, &dataMap)
+		err := jsonutil.Unmarshal(source, &dataMap)
 		if err == nil {
 			return dataMap
 		}
diff --git a/adapters/pubmatic/pubmatic_test.go b/adapters/pubmatic/pubmatic_test.go
index 747dd5de0d8..9c6af0cba40 100644
--- a/adapters/pubmatic/pubmatic_test.go
+++ b/adapters/pubmatic/pubmatic_test.go
@@ -8,10 +8,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/pubmatic/pubmatictest/supplemental/app.json b/adapters/pubmatic/pubmatictest/supplemental/app.json
index abe79bbe31d..67be496c5df 100644
--- a/adapters/pubmatic/pubmatictest/supplemental/app.json
+++ b/adapters/pubmatic/pubmatictest/supplemental/app.json
@@ -139,8 +139,8 @@
     ],
     "expectedMakeBidsErrors": [
       {
-        "value": "unexpected end of JSON input",
-        "comparison": "literal"
+        "value": "expect { or n, but found",
+        "comparison": "startswith"
       }
     ]
   }
\ No newline at end of file
diff --git a/adapters/pubnative/pubnative.go b/adapters/pubnative/pubnative.go
index 89d8f9e9e77..7c77aeefc90 100644
--- a/adapters/pubnative/pubnative.go
+++ b/adapters/pubnative/pubnative.go
@@ -8,11 +8,12 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 type PubnativeAdapter struct {
@@ -37,13 +38,13 @@ func (a *PubnativeAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *a
 	for _, imp := range request.Imp {
 		requestCopy := *request
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
 
 		var pubnativeExt openrtb_ext.ExtImpPubnative
-		if err := json.Unmarshal(bidderExt.Bidder, &pubnativeExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &pubnativeExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
@@ -145,7 +146,7 @@ func (a *PubnativeAdapter) MakeBids(internalRequest *openrtb2.BidRequest, extern
 	}
 
 	var parsedResponse openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &parsedResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &parsedResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
 		}}
diff --git a/adapters/pubnative/pubnative_test.go b/adapters/pubnative/pubnative_test.go
index b1b1bf85e05..dfc065b7166 100644
--- a/adapters/pubnative/pubnative_test.go
+++ b/adapters/pubnative/pubnative_test.go
@@ -3,9 +3,9 @@ package pubnative
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/pubrise/params_test.go b/adapters/pubrise/params_test.go
index df5d38fd02e..97ee8ebc5c7 100644
--- a/adapters/pubrise/params_test.go
+++ b/adapters/pubrise/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/pubrise/pubrise.go b/adapters/pubrise/pubrise.go
index 9d71f2e1439..80168f97256 100644
--- a/adapters/pubrise/pubrise.go
+++ b/adapters/pubrise/pubrise.go
@@ -7,9 +7,10 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -44,11 +45,11 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var pubriseExt openrtb_ext.ImpExtPubrise
 
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
-		if err := json.Unmarshal(bidderExt.Bidder, &pubriseExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &pubriseExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
@@ -118,7 +119,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/pubrise/pubrise_test.go b/adapters/pubrise/pubrise_test.go
index a50878c339e..9f4f2124abc 100644
--- a/adapters/pubrise/pubrise_test.go
+++ b/adapters/pubrise/pubrise_test.go
@@ -3,9 +3,9 @@ package pubrise
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/pubrise/pubrisetest/supplemental/bad_response.json b/adapters/pubrise/pubrisetest/supplemental/bad_response.json
index 08b58d888ed..9bc9c2de35a 100644
--- a/adapters/pubrise/pubrisetest/supplemental/bad_response.json
+++ b/adapters/pubrise/pubrisetest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/pulsepoint/params_test.go b/adapters/pulsepoint/params_test.go
index c97cec03230..4359c4115ad 100644
--- a/adapters/pulsepoint/params_test.go
+++ b/adapters/pulsepoint/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/pulsepoint/pulsepoint.go b/adapters/pulsepoint/pulsepoint.go
index dffe2754110..2f750e9f858 100644
--- a/adapters/pulsepoint/pulsepoint.go
+++ b/adapters/pulsepoint/pulsepoint.go
@@ -7,11 +7,11 @@ import (
 	"net/http"
 	"strconv"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 )
@@ -37,14 +37,14 @@ func (a *PulsePointAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *
 	for i := 0; i < len(request.Imp); i++ {
 		imp := request.Imp[i]
 		var bidderExt adapters.ExtImpBidder
-		if err = json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: err.Error(),
 			})
 			continue
 		}
 		var pulsepointExt openrtb_ext.ExtImpPulsePoint
-		if err = json.Unmarshal(bidderExt.Bidder, &pulsepointExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &pulsepointExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -138,7 +138,7 @@ func (a *PulsePointAdapter) MakeBids(internalRequest *openrtb2.BidRequest, exter
 	}
 	// parse response
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/pulsepoint/pulsepoint_test.go b/adapters/pulsepoint/pulsepoint_test.go
index 20f73c89ecb..be9fff83a69 100644
--- a/adapters/pulsepoint/pulsepoint_test.go
+++ b/adapters/pulsepoint/pulsepoint_test.go
@@ -3,9 +3,9 @@ package pulsepoint
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/pulsepoint/pulsepointtest/supplemental/bad-bid-data.json b/adapters/pulsepoint/pulsepointtest/supplemental/bad-bid-data.json
index 182bddc7137..8949960cb29 100644
--- a/adapters/pulsepoint/pulsepointtest/supplemental/bad-bid-data.json
+++ b/adapters/pulsepoint/pulsepointtest/supplemental/bad-bid-data.json
@@ -84,8 +84,8 @@
     }],
     "expectedBidResponses": [],
     "expectedMakeBidsErrors": [{
-          "value": "json: cannot unmarshal string into Go struct field Bid.seatbid.bid.w of type int64",
-          "comparison": "literal"
+          "value": "cannot unmarshal openrtb2.Bid.W: unexpected character",
+          "comparison": "startswith"
         }
     ]
 }
\ No newline at end of file
diff --git a/adapters/pulsepoint/pulsepointtest/supplemental/bad-prebid-params.json b/adapters/pulsepoint/pulsepointtest/supplemental/bad-prebid-params.json
index 060ffb1ad88..aee3d444912 100644
--- a/adapters/pulsepoint/pulsepointtest/supplemental/bad-prebid-params.json
+++ b/adapters/pulsepoint/pulsepointtest/supplemental/bad-prebid-params.json
@@ -24,7 +24,7 @@
     },
     "httpCalls": [],
     "expectedMakeRequestsErrors": [{
-        "value": "Value looks like Number/Boolean/None, but can't find its end: ',' or '}' symbol",
+        "value": "cannot unmarshal openrtb_ext.ExtImpPulsePoint.TagID: Value looks like Number/Boolean/None, but can't find its end: ',' or '}' symbol",
         "comparison": "literal"
     }],
     "expectedBidResponses": [],
diff --git a/adapters/pulsepoint/pulsepointtest/supplemental/bad-prebid.ext.json b/adapters/pulsepoint/pulsepointtest/supplemental/bad-prebid.ext.json
index 7de9bd3c264..74825c2c018 100644
--- a/adapters/pulsepoint/pulsepointtest/supplemental/bad-prebid.ext.json
+++ b/adapters/pulsepoint/pulsepointtest/supplemental/bad-prebid.ext.json
@@ -19,7 +19,7 @@
     },
     "httpCalls": [],
     "expectedMakeRequestsErrors": [{
-        "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+        "value": "expect { or n, but found \"",
         "comparison": "literal"
     }],
     "expectedBidResponses": [],
diff --git a/adapters/pwbid/params_test.go b/adapters/pwbid/params_test.go
index 44d36379cca..52f06e02573 100644
--- a/adapters/pwbid/params_test.go
+++ b/adapters/pwbid/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/pwbid/pwbid.go b/adapters/pwbid/pwbid.go
index 19b182562c6..7e03185f2cd 100644
--- a/adapters/pwbid/pwbid.go
+++ b/adapters/pwbid/pwbid.go
@@ -5,10 +5,11 @@ import (
 	"fmt"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -51,7 +52,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/pwbid/pwbid_test.go b/adapters/pwbid/pwbid_test.go
index 9abad59d97c..cb028a19f69 100644
--- a/adapters/pwbid/pwbid_test.go
+++ b/adapters/pwbid/pwbid_test.go
@@ -3,9 +3,9 @@ package pwbid
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/pwbid/pwbidtest/supplemental/response-200-without-body.json b/adapters/pwbid/pwbidtest/supplemental/response-200-without-body.json
index 6b4effd139e..ffb61b548b7 100644
--- a/adapters/pwbid/pwbidtest/supplemental/response-200-without-body.json
+++ b/adapters/pwbid/pwbidtest/supplemental/response-200-without-body.json
@@ -45,8 +45,8 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/qt/params_test.go b/adapters/qt/params_test.go
index 84f9bbed17a..5c8d3253bec 100644
--- a/adapters/qt/params_test.go
+++ b/adapters/qt/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/qt/qt.go b/adapters/qt/qt.go
index ddb306beb91..a7c5d53c5ac 100644
--- a/adapters/qt/qt.go
+++ b/adapters/qt/qt.go
@@ -6,9 +6,10 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -43,11 +44,11 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var qtExt openrtb_ext.ImpExtQT
 
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
-		if err := json.Unmarshal(bidderExt.Bidder, &qtExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &qtExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
@@ -110,7 +111,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/qt/qt_test.go b/adapters/qt/qt_test.go
index a27dd2a815c..f85adbaf18c 100644
--- a/adapters/qt/qt_test.go
+++ b/adapters/qt/qt_test.go
@@ -3,9 +3,9 @@ package qt
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/qt/qttest/supplemental/bad_response.json b/adapters/qt/qttest/supplemental/bad_response.json
index d8029b5ed6b..4fe8d572c46 100644
--- a/adapters/qt/qttest/supplemental/bad_response.json
+++ b/adapters/qt/qttest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/readpeak/params_test.go b/adapters/readpeak/params_test.go
index 494cff3db6e..772855e425d 100644
--- a/adapters/readpeak/params_test.go
+++ b/adapters/readpeak/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/readpeak/readpeak.go b/adapters/readpeak/readpeak.go
index dd7e30ccb81..7049dace489 100644
--- a/adapters/readpeak/readpeak.go
+++ b/adapters/readpeak/readpeak.go
@@ -8,10 +8,11 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -33,11 +34,11 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 	var imps []openrtb2.Imp
 	for i := 0; i < len(requestCopy.Imp); i++ {
 		var impExt adapters.ExtImpBidder
-		if err := json.Unmarshal(requestCopy.Imp[i].Ext, &impExt); err != nil {
+		if err := jsonutil.Unmarshal(requestCopy.Imp[i].Ext, &impExt); err != nil {
 			errors = append(errors, err)
 			continue
 		}
-		if err := json.Unmarshal(impExt.Bidder, &rpExt); err != nil {
+		if err := jsonutil.Unmarshal(impExt.Bidder, &rpExt); err != nil {
 			errors = append(errors, err)
 			continue
 		}
@@ -108,7 +109,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/readpeak/readpeak_test.go b/adapters/readpeak/readpeak_test.go
index aab6b554cb0..8c8e8e27bea 100644
--- a/adapters/readpeak/readpeak_test.go
+++ b/adapters/readpeak/readpeak_test.go
@@ -3,9 +3,9 @@ package readpeak
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/relevantdigital/params_test.go b/adapters/relevantdigital/params_test.go
index cd889a5eaa8..987dfd6e589 100644
--- a/adapters/relevantdigital/params_test.go
+++ b/adapters/relevantdigital/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/relevantdigital/relevantdigital.go b/adapters/relevantdigital/relevantdigital.go
index 134bdf5e4d5..35789f3b841 100644
--- a/adapters/relevantdigital/relevantdigital.go
+++ b/adapters/relevantdigital/relevantdigital.go
@@ -10,11 +10,12 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 )
 
@@ -56,7 +57,7 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 func patchBidRequestExt(prebidBidRequest *openrtb2.BidRequest, id string) error {
 	var bidRequestExt relevantExt
 	if len(prebidBidRequest.Ext) != 0 {
-		if err := json.Unmarshal(prebidBidRequest.Ext, &bidRequestExt); err != nil {
+		if err := jsonutil.Unmarshal(prebidBidRequest.Ext, &bidRequestExt); err != nil {
 			return &errortypes.FailedToRequestBids{
 				Message: fmt.Sprintf("failed to unmarshal ext, %s", prebidBidRequest.Ext),
 			}
@@ -158,13 +159,13 @@ func createJSONRequest(bidRequest *openrtb2.BidRequest) ([]byte, error) {
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtRelevantDigital, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "imp.ext not provided",
 		}
 	}
 	relevantExt := openrtb_ext.ExtRelevantDigital{PbsBufferMs: default_bufffer_ms}
-	if err := json.Unmarshal(bidderExt.Bidder, &relevantExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &relevantExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
@@ -254,7 +255,7 @@ func getHeaders(request *openrtb2.BidRequest) http.Header {
 func getMediaTypeForBidFromExt(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 	if bid.Ext != nil {
 		var bidExt openrtb_ext.ExtBid
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil && bidExt.Prebid != nil {
 			return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
 		}
@@ -301,7 +302,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/relevantdigital/relevantdigital_test.go b/adapters/relevantdigital/relevantdigital_test.go
index 5c627ca7c65..31e6b370d86 100644
--- a/adapters/relevantdigital/relevantdigital_test.go
+++ b/adapters/relevantdigital/relevantdigital_test.go
@@ -3,9 +3,9 @@ package relevantdigital
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/response.go b/adapters/response.go
index 747b6ddf9c0..ec02513ca6a 100644
--- a/adapters/response.go
+++ b/adapters/response.go
@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"net/http"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 )
 
 func CheckResponseStatusCodeForErrors(response *ResponseData) error {
diff --git a/adapters/response_test.go b/adapters/response_test.go
index 11ef1abcc5a..28fbefdf525 100644
--- a/adapters/response_test.go
+++ b/adapters/response_test.go
@@ -3,7 +3,7 @@ package adapters
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/revcontent/revcontent.go b/adapters/revcontent/revcontent.go
index e2a74c9311c..881b1d4916d 100644
--- a/adapters/revcontent/revcontent.go
+++ b/adapters/revcontent/revcontent.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -78,7 +79,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/revcontent/revcontent_test.go b/adapters/revcontent/revcontent_test.go
index a39a78a81dd..35e6970c7f1 100644
--- a/adapters/revcontent/revcontent_test.go
+++ b/adapters/revcontent/revcontent_test.go
@@ -3,9 +3,9 @@ package revcontent
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/revcontent/revcontenttest/supplemental/bad_response.json b/adapters/revcontent/revcontenttest/supplemental/bad_response.json
index cf9450c533d..b9922f7d38b 100644
--- a/adapters/revcontent/revcontenttest/supplemental/bad_response.json
+++ b/adapters/revcontent/revcontenttest/supplemental/bad_response.json
@@ -44,7 +44,7 @@
   "expectedMakeBidsErrors": [
     {
       "comparison": "literal",
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse"
+      "value": "expect { or n, but found \""
     }
   ]
 }
diff --git a/adapters/richaudience/params_test.go b/adapters/richaudience/params_test.go
index 4f7ede9bd55..8f5b2e244b3 100644
--- a/adapters/richaudience/params_test.go
+++ b/adapters/richaudience/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/richaudience/richaudience.go b/adapters/richaudience/richaudience.go
index 7955e3577c8..969fd312c91 100644
--- a/adapters/richaudience/richaudience.go
+++ b/adapters/richaudience/richaudience.go
@@ -7,10 +7,11 @@ import (
 	"net/url"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -157,14 +158,14 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var bidReq openrtb2.BidRequest
-	if err := json.Unmarshal(requestData.Body, &bidReq); err != nil {
+	if err := jsonutil.Unmarshal(requestData.Body, &bidReq); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
 		}}
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
 		}}
@@ -230,7 +231,7 @@ func validateDevice(request *openrtb2.BidRequest) (err error) {
 
 func parseImpExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpRichaudience, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		err = &errortypes.BadInput{
 			Message: fmt.Sprintf("not found parameters ext in ImpID : %s", imp.ID),
 		}
@@ -238,7 +239,7 @@ func parseImpExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpRichaudience, error) {
 	}
 
 	var richaudienceExt openrtb_ext.ExtImpRichaudience
-	if err := json.Unmarshal(bidderExt.Bidder, &richaudienceExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &richaudienceExt); err != nil {
 		err = &errortypes.BadInput{
 			Message: fmt.Sprintf("invalid parameters ext in ImpID: %s", imp.ID),
 		}
diff --git a/adapters/richaudience/richaudience_test.go b/adapters/richaudience/richaudience_test.go
index 6150e45e1a0..fde825ef6a3 100644
--- a/adapters/richaudience/richaudience_test.go
+++ b/adapters/richaudience/richaudience_test.go
@@ -5,10 +5,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/rise/rise.go b/adapters/rise/rise.go
index 3742f768ee4..6ba15b8e1b5 100644
--- a/adapters/rise/rise.go
+++ b/adapters/rise/rise.go
@@ -9,9 +9,10 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // adapter is a Rise implementation of the adapters.Bidder interface.
@@ -62,7 +63,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -93,12 +94,12 @@ func extractOrg(openRTBRequest *openrtb2.BidRequest) (string, error) {
 	var err error
 	for _, imp := range openRTBRequest.Imp {
 		var bidderExt adapters.ExtImpBidder
-		if err = json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			return "", fmt.Errorf("unmarshal bidderExt: %w", err)
 		}
 
 		var impExt openrtb_ext.ImpExtRise
-		if err = json.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
 			return "", fmt.Errorf("unmarshal ImpExtRise: %w", err)
 		}
 
diff --git a/adapters/rise/rise_test.go b/adapters/rise/rise_test.go
index 79d34bde64f..d7235a7f3f5 100644
--- a/adapters/rise/rise_test.go
+++ b/adapters/rise/rise_test.go
@@ -3,9 +3,9 @@ package rise
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsDir = "risetest"
diff --git a/adapters/rise/risetest/supplemental/missing-bidder.json b/adapters/rise/risetest/supplemental/missing-bidder.json
index 0a7cc67ca08..5cde70f5719 100644
--- a/adapters/rise/risetest/supplemental/missing-bidder.json
+++ b/adapters/rise/risetest/supplemental/missing-bidder.json
@@ -28,8 +28,8 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "extractOrg: unmarshal ImpExtRise: unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "extractOrg: unmarshal ImpExtRise: expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/rise/risetest/supplemental/missing-extension.json b/adapters/rise/risetest/supplemental/missing-extension.json
index 74e94f45c79..6bb8594d152 100644
--- a/adapters/rise/risetest/supplemental/missing-extension.json
+++ b/adapters/rise/risetest/supplemental/missing-extension.json
@@ -27,8 +27,8 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "extractOrg: unmarshal bidderExt: unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "extractOrg: unmarshal bidderExt: expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/roulax/roulax.go b/adapters/roulax/roulax.go
index 959aa57eca9..99238369081 100644
--- a/adapters/roulax/roulax.go
+++ b/adapters/roulax/roulax.go
@@ -7,10 +7,11 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -33,11 +34,11 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 // getImpAdotExt parses and return first imp ext or nil
 func getImpRoulaxExt(imp *openrtb2.Imp) (openrtb_ext.ExtImpRoulax, error) {
 	var extBidder adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &extBidder); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &extBidder); err != nil {
 		return openrtb_ext.ExtImpRoulax{}, err
 	}
 	var extImpRoulax openrtb_ext.ExtImpRoulax
-	if err := json.Unmarshal(extBidder.Bidder, &extImpRoulax); err != nil {
+	if err := jsonutil.Unmarshal(extBidder.Bidder, &extImpRoulax); err != nil {
 		return openrtb_ext.ExtImpRoulax{}, err
 	}
 	return extImpRoulax, nil
@@ -80,7 +81,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 		return nil, []error{err}
 	}
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 	bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(request.Imp))
diff --git a/adapters/roulax/roulax_test.go b/adapters/roulax/roulax_test.go
index 0b13b9874c4..3bd03bbbf38 100644
--- a/adapters/roulax/roulax_test.go
+++ b/adapters/roulax/roulax_test.go
@@ -3,9 +3,9 @@ package roulax
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsDir = "roulaxtest"
diff --git a/adapters/rtbhouse/rtbhouse.go b/adapters/rtbhouse/rtbhouse.go
index bd0d892b996..f499022aa16 100644
--- a/adapters/rtbhouse/rtbhouse.go
+++ b/adapters/rtbhouse/rtbhouse.go
@@ -5,14 +5,16 @@ import (
 	"errors"
 	"fmt"
 	"net/http"
+	"strconv"
 	"strings"
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
@@ -106,14 +108,14 @@ func (adapter *RTBHouseAdapter) MakeRequests(
 
 func getImpressionExt(imp openrtb2.Imp) (*openrtb_ext.ExtImpRTBHouse, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Bidder extension not provided or can't be unmarshalled",
 		}
 	}
 
 	var rtbhouseExt openrtb_ext.ExtImpRTBHouse
-	if err := json.Unmarshal(bidderExt.Bidder, &rtbhouseExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &rtbhouseExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error while unmarshaling bidder extension",
 		}
@@ -152,7 +154,7 @@ func (adapter *RTBHouseAdapter) MakeBids(
 	}
 
 	var openRTBBidderResponse openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &openRTBBidderResponse); err != nil {
 		return nil, []error{err}
 	}
 
@@ -161,8 +163,9 @@ func (adapter *RTBHouseAdapter) MakeBids(
 	var typedBid *adapters.TypedBid
 	for _, seatBid := range openRTBBidderResponse.SeatBid {
 		for _, bid := range seatBid.Bid {
-			bid := bid // pin! -> https://github.com/kyoh86/scopelint#whats-this
+			bid := bid
 			bidType, err := getMediaTypeForBid(bid)
+			resolveMacros(&bid)
 			if err != nil {
 				errs = append(errs, err)
 				continue
@@ -205,7 +208,7 @@ func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 
 func getNativeAdm(adm string) (string, error) {
 	nativeAdm := make(map[string]interface{})
-	err := json.Unmarshal([]byte(adm), &nativeAdm)
+	err := jsonutil.Unmarshal([]byte(adm), &nativeAdm)
 	if err != nil {
 		return adm, errors.New("unable to unmarshal native adm")
 	}
@@ -222,3 +225,11 @@ func getNativeAdm(adm string) (string, error) {
 
 	return adm, nil
 }
+
+func resolveMacros(bid *openrtb2.Bid) {
+	if bid != nil {
+		price := strconv.FormatFloat(bid.Price, 'f', -1, 64)
+		bid.NURL = strings.Replace(bid.NURL, "${AUCTION_PRICE}", price, -1)
+		bid.AdM = strings.Replace(bid.AdM, "${AUCTION_PRICE}", price, -1)
+	}
+}
diff --git a/adapters/rtbhouse/rtbhouse_test.go b/adapters/rtbhouse/rtbhouse_test.go
index 7bccfa36266..c7189cffc9b 100644
--- a/adapters/rtbhouse/rtbhouse_test.go
+++ b/adapters/rtbhouse/rtbhouse_test.go
@@ -3,9 +3,9 @@ package rtbhouse
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsDir = "rtbhousetest"
diff --git a/adapters/rtbhouse/rtbhousetest/exemplary/banner-resolve-macros.json b/adapters/rtbhouse/rtbhousetest/exemplary/banner-resolve-macros.json
new file mode 100644
index 00000000000..eaa3965040e
--- /dev/null
+++ b/adapters/rtbhouse/rtbhousetest/exemplary/banner-resolve-macros.json
@@ -0,0 +1,87 @@
+{
+    "mockBidRequest": {
+        "id": "test-request-id",
+        "site": {
+            "page": "https://good.site/url"
+        },
+        "imp": [{
+            "id": "test-imp-id",
+            "banner": {
+                "format": [{
+                    "w": 300,
+                    "h": 250
+                }]
+            },
+            "ext": {
+                "bidder": {}
+            }
+        }]
+    },
+
+    "httpCalls": [{
+        "expectedRequest": {
+            "uri": "http://localhost/prebid_server",
+            "body": {
+                "id": "test-request-id",
+                "cur": ["USD"],
+                "site": {
+                    "page": "https://good.site/url"
+                },
+                "imp": [{
+                    "id": "test-imp-id",
+                    "banner": {
+                        "format": [{
+                            "w": 300,
+                            "h": 250
+                        }]
+                    },
+                    "ext": {
+                        "bidder": {}
+                    }
+                }]
+            },
+            "impIDs":["test-imp-id"]
+        },
+        "mockResponse": {
+            "status": 200,
+            "body": {
+                "id": "test-request-id",
+                "seatbid": [{
+                    "seat": "rtbhouse",
+                    "bid": [{
+                        "id": "randomid",
+                        "impid": "test-imp-id",
+                        "price": 0.500000,
+                        "adid": "12345678",
+                        "adm": "<iframe src=\"https://endpoint.url/banner1234567890.html\"></iframe><img src=\"https://endpoint.url/win-notify?a=xyz&price=${AUCTION_PRICE}\">",
+                        "cid": "987",
+                        "crid": "12345678",
+                        "h": 250,
+                        "w": 300,
+                        "mtype": 1
+                    }]
+                }],
+                "cur": "USD"
+            }
+        }
+    }],
+
+    "expectedBidResponses": [{
+        "currency": "USD",
+        "bids": [{
+            "bid": {
+                "id": "randomid",
+                "impid": "test-imp-id",
+                "price": 0.5,
+                "adm": "<iframe src=\"https://endpoint.url/banner1234567890.html\"></iframe><img src=\"https://endpoint.url/win-notify?a=xyz&price=0.5\">",
+                "adid": "12345678",
+                "cid": "987",
+                "crid": "12345678",
+                "w": 300,
+                "h": 250,
+                "mtype": 1
+            },
+            "type": "banner"
+        }]
+    }]
+}
diff --git a/adapters/rtbhouse/rtbhousetest/supplemental/bad_response.json b/adapters/rtbhouse/rtbhousetest/supplemental/bad_response.json
index 6eb776e48aa..a2d0c8da3d4 100644
--- a/adapters/rtbhouse/rtbhousetest/supplemental/bad_response.json
+++ b/adapters/rtbhouse/rtbhousetest/supplemental/bad_response.json
@@ -56,7 +56,7 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/rubicon/rubicon.go b/adapters/rubicon/rubicon.go
index 9cf8eb6ff20..baf4b3e191b 100644
--- a/adapters/rubicon/rubicon.go
+++ b/adapters/rubicon/rubicon.go
@@ -3,17 +3,19 @@ package rubicon
 import (
 	"encoding/json"
 	"fmt"
-	"github.com/prebid/prebid-server/v2/version"
 	"net/http"
 	"net/url"
 	"strconv"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/maputil"
+	"github.com/prebid/prebid-server/v3/version"
+
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/maputil"
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/adcom1"
@@ -479,7 +481,7 @@ func (a *RubiconAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *ada
 			if sourceCopy.SChain != nil {
 				var sourceCopyExt openrtb_ext.ExtSource
 				if sourceCopy.Ext != nil {
-					if err = json.Unmarshal(sourceCopy.Ext, &sourceCopyExt); err != nil {
+					if err = jsonutil.Unmarshal(sourceCopy.Ext, &sourceCopyExt); err != nil {
 						errs = append(errs, &errortypes.BadInput{Message: err.Error()})
 						continue
 					}
@@ -509,7 +511,7 @@ func (a *RubiconAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *ada
 
 			var regsCopyExt openrtb_ext.ExtRegs
 			if regsCopy.Ext != nil {
-				if err = json.Unmarshal(regsCopy.Ext, &regsCopyExt); err != nil {
+				if err = jsonutil.Unmarshal(regsCopy.Ext, &regsCopyExt); err != nil {
 					errs = append(errs, &errortypes.BadInput{Message: err.Error()})
 					continue
 				}
@@ -577,7 +579,7 @@ func createImpsToExtMap(imps []openrtb2.Imp) (map[*openrtb2.Imp]rubiconExtImpBid
 	for _, imp := range imps {
 		impCopy := imp
 		var bidderExt rubiconExtImpBidder
-		if err = json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -721,14 +723,14 @@ func (a *RubiconAdapter) updateImpRpTarget(extImp rubiconExtImpBidder, extImpRub
 
 	var data rubiconData
 	if len(extImp.Data) > 0 {
-		err := json.Unmarshal(extImp.Data, &data)
+		err := jsonutil.Unmarshal(extImp.Data, &data)
 		if err != nil {
 			return nil, err
 		}
 	}
 	var contextData rubiconData
 	if len(extImp.Context.Data) > 0 {
-		err := json.Unmarshal(extImp.Context.Data, &contextData)
+		err := jsonutil.Unmarshal(extImp.Context.Data, &contextData)
 		if err != nil {
 			return nil, err
 		}
@@ -888,7 +890,7 @@ func rawJSONToMap(message json.RawMessage) (map[string]interface{}, error) {
 
 func mapFromRawJSON(message json.RawMessage) (map[string]interface{}, error) {
 	targetAsMap := make(map[string]interface{})
-	err := json.Unmarshal(message, &targetAsMap)
+	err := jsonutil.Unmarshal(message, &targetAsMap)
 	if err != nil {
 		return nil, err
 	}
@@ -901,7 +903,7 @@ func getSegmentIdsToCopy(data []openrtb2.Data, segTaxValues []int) []string {
 	for _, dataRecord := range data {
 		if dataRecord.Ext != nil {
 			var dataExtObject rubiconDataExt
-			err := json.Unmarshal(dataRecord.Ext, &dataExtObject)
+			err := jsonutil.Unmarshal(dataRecord.Ext, &dataExtObject)
 			if err != nil {
 				continue
 			}
@@ -947,7 +949,7 @@ func resolveNativeObject(native *openrtb2.Native, target map[string]interface{})
 		return native, nil
 	}
 
-	err := json.Unmarshal([]byte(native.Request), &target)
+	err := jsonutil.Unmarshal([]byte(native.Request), &target)
 	if err != nil {
 		return nil, err
 	}
@@ -972,7 +974,7 @@ func resolveNativeObject(native *openrtb2.Native, target map[string]interface{})
 
 func setImpNative(jsonData []byte, requestNative map[string]interface{}) ([]byte, error) {
 	var jsonMap map[string]interface{}
-	if err := json.Unmarshal(jsonData, &jsonMap); err != nil {
+	if err := jsonutil.Unmarshal(jsonData, &jsonMap); err != nil {
 		return jsonData, err
 	}
 
@@ -1017,14 +1019,14 @@ func (a *RubiconAdapter) MakeBids(internalRequest *openrtb2.BidRequest, external
 	}
 
 	var bidResp rubiconBidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
 		}}
 	}
 
 	var bidReq openrtb2.BidRequest
-	if err := json.Unmarshal(externalRequest.Body, &bidReq); err != nil {
+	if err := jsonutil.Unmarshal(externalRequest.Body, &bidReq); err != nil {
 		return nil, []error{err}
 	}
 
@@ -1079,7 +1081,7 @@ func (a *RubiconAdapter) MakeBids(internalRequest *openrtb2.BidRequest, external
 
 				rubiconBidAsBytes, _ := json.Marshal(bid)
 				if len(rubiconBidAsBytes) > 0 {
-					err = json.Unmarshal(rubiconBidAsBytes, &ortbBid)
+					err = jsonutil.Unmarshal(rubiconBidAsBytes, &ortbBid)
 					if err != nil {
 						return nil, []error{err}
 					}
@@ -1103,12 +1105,12 @@ func mapImpIdToCpmOverride(imps []openrtb2.Imp) map[string]float64 {
 	impIdToCmpOverride := make(map[string]float64)
 	for _, imp := range imps {
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			continue
 		}
 
 		var rubiconExt openrtb_ext.ExtImpRubicon
-		if err := json.Unmarshal(bidderExt.Bidder, &rubiconExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &rubiconExt); err != nil {
 			continue
 		}
 
@@ -1134,7 +1136,7 @@ func resolveAdm(bid rubiconBid) string {
 
 func cmpOverrideFromBidRequest(bidRequest *openrtb2.BidRequest) float64 {
 	var bidRequestExt bidRequestExt
-	if err := json.Unmarshal(bidRequest.Ext, &bidRequestExt); err != nil {
+	if err := jsonutil.Unmarshal(bidRequest.Ext, &bidRequestExt); err != nil {
 		return 0
 	}
 
@@ -1147,7 +1149,7 @@ func updateBidExtWithMetaNetworkId(bid rubiconBid, buyer int) json.RawMessage {
 	}
 	var bidExt *extPrebid
 	if bid.Ext != nil {
-		if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+		if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 			return nil
 		}
 	}
diff --git a/adapters/rubicon/rubicon_test.go b/adapters/rubicon/rubicon_test.go
index ba72727c41c..168c1d15343 100644
--- a/adapters/rubicon/rubicon_test.go
+++ b/adapters/rubicon/rubicon_test.go
@@ -8,12 +8,12 @@ import (
 	"strconv"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/adcom1"
diff --git a/adapters/rubicon/rubicontest/supplemental/invalid-bidder-ext.json b/adapters/rubicon/rubicontest/supplemental/invalid-bidder-ext.json
index c9114d1d4d4..08141bf6065 100644
--- a/adapters/rubicon/rubicontest/supplemental/invalid-bidder-ext.json
+++ b/adapters/rubicon/rubicontest/supplemental/invalid-bidder-ext.json
@@ -25,7 +25,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal array into Go struct field rubiconExtImpBidder.bidder of type openrtb_ext.ExtImpRubicon",
+      "value": "cannot unmarshal rubicon.rubiconExtImpBidder.Bidder: expect { or n, but found [",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/sa_lunamedia/params_test.go b/adapters/sa_lunamedia/params_test.go
index 568ac83d9cf..640af6ceb3a 100644
--- a/adapters/sa_lunamedia/params_test.go
+++ b/adapters/sa_lunamedia/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/sa_lunamedia/salunamedia.go b/adapters/sa_lunamedia/salunamedia.go
index 89d5d9f691a..b75ccd9f8a4 100644
--- a/adapters/sa_lunamedia/salunamedia.go
+++ b/adapters/sa_lunamedia/salunamedia.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -86,7 +87,7 @@ func (a *adapter) MakeBids(
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -111,7 +112,7 @@ func (a *adapter) MakeBids(
 	var bidExt bidExt
 	var bidType openrtb_ext.BidType
 
-	if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+	if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Missing BidExt",
 		}}
diff --git a/adapters/sa_lunamedia/salunamedia_test.go b/adapters/sa_lunamedia/salunamedia_test.go
index 4bcfb96f28e..3247bb0a57c 100644
--- a/adapters/sa_lunamedia/salunamedia_test.go
+++ b/adapters/sa_lunamedia/salunamedia_test.go
@@ -3,9 +3,9 @@ package salunamedia
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/sa_lunamedia/salunamediatest/supplemental/bad-response.json b/adapters/sa_lunamedia/salunamediatest/supplemental/bad-response.json
index 72262b5d533..33020bc6d3c 100644
--- a/adapters/sa_lunamedia/salunamediatest/supplemental/bad-response.json
+++ b/adapters/sa_lunamedia/salunamediatest/supplemental/bad-response.json
@@ -90,7 +90,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/screencore/params_test.go b/adapters/screencore/params_test.go
index 7220f9945cf..508731fbdee 100644
--- a/adapters/screencore/params_test.go
+++ b/adapters/screencore/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/screencore/screencore.go b/adapters/screencore/screencore.go
index 6011b9bbd80..17dab9084bd 100644
--- a/adapters/screencore/screencore.go
+++ b/adapters/screencore/screencore.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -88,13 +89,13 @@ func (a *adapter) MakeRequests(openRTBRequest *openrtb2.BidRequest, reqInfo *ada
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtScreencore, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error parsing screencoreExt - " + err.Error(),
 		}
 	}
 	var screencoreExt openrtb_ext.ExtScreencore
-	if err := json.Unmarshal(bidderExt.Bidder, &screencoreExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &screencoreExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error parsing bidderExt - " + err.Error(),
 		}
@@ -130,7 +131,7 @@ func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/screencore/screencore_test.go b/adapters/screencore/screencore_test.go
index 4dc22b3cd6a..2451231fe5f 100644
--- a/adapters/screencore/screencore_test.go
+++ b/adapters/screencore/screencore_test.go
@@ -3,9 +3,9 @@ package screencore
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/screencore/screencoretest/supplemental/invalid-bidder-ext-object.json b/adapters/screencore/screencoretest/supplemental/invalid-bidder-ext-object.json
index 4dc5c5a62bc..016fbd43490 100644
--- a/adapters/screencore/screencoretest/supplemental/invalid-bidder-ext-object.json
+++ b/adapters/screencore/screencoretest/supplemental/invalid-bidder-ext-object.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "Error parsing bidderExt - json: cannot unmarshal string into Go value of type openrtb_ext.ExtScreencore",
+      "value": "Error parsing bidderExt - expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/screencore/screencoretest/supplemental/invalid-screencore-ext-object.json b/adapters/screencore/screencoretest/supplemental/invalid-screencore-ext-object.json
index b52e18fab50..4c3c9d95055 100644
--- a/adapters/screencore/screencoretest/supplemental/invalid-screencore-ext-object.json
+++ b/adapters/screencore/screencoretest/supplemental/invalid-screencore-ext-object.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "Error parsing screencoreExt - json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "Error parsing screencoreExt - expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/seedingAlliance/params_test.go b/adapters/seedingAlliance/params_test.go
index deb964a3743..56433b003ce 100644
--- a/adapters/seedingAlliance/params_test.go
+++ b/adapters/seedingAlliance/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/seedingAlliance/seedingAlliance.go b/adapters/seedingAlliance/seedingAlliance.go
index 1d6e9a8fb12..1e23d4e25ab 100644
--- a/adapters/seedingAlliance/seedingAlliance.go
+++ b/adapters/seedingAlliance/seedingAlliance.go
@@ -9,11 +9,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -86,7 +87,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -123,7 +124,7 @@ func resolvePriceMacro(bid *openrtb2.Bid) {
 func getMediaTypeForBid(ext json.RawMessage) (openrtb_ext.BidType, error) {
 	var bidExt openrtb_ext.ExtBid
 
-	if err := json.Unmarshal(ext, &bidExt); err != nil {
+	if err := jsonutil.Unmarshal(ext, &bidExt); err != nil {
 		return "", fmt.Errorf("could not unmarshal openrtb_ext.ExtBid: %w", err)
 	}
 
@@ -149,11 +150,11 @@ func getExtInfo(imp *openrtb2.Imp) (string, error) {
 
 	accountId := "pbs"
 
-	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
 		return "", fmt.Errorf("could not unmarshal adapters.ExtImpBidder: %w", err)
 	}
 
-	if err := json.Unmarshal(ext.Bidder, &extSA); err != nil {
+	if err := jsonutil.Unmarshal(ext.Bidder, &extSA); err != nil {
 		return "", fmt.Errorf("could not unmarshal openrtb_ext.ImpExtSeedingAlliance: %w", err)
 	}
 
diff --git a/adapters/seedingAlliance/seedingAlliance_test.go b/adapters/seedingAlliance/seedingAlliance_test.go
index ae9b888e4b1..b432d0577f4 100644
--- a/adapters/seedingAlliance/seedingAlliance_test.go
+++ b/adapters/seedingAlliance/seedingAlliance_test.go
@@ -5,10 +5,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/seedingAlliance/seedingAlliancetest/supplemental/invalid_tag_id.json b/adapters/seedingAlliance/seedingAlliancetest/supplemental/invalid_tag_id.json
index c79795e48e2..7d4c212d611 100644
--- a/adapters/seedingAlliance/seedingAlliancetest/supplemental/invalid_tag_id.json
+++ b/adapters/seedingAlliance/seedingAlliancetest/supplemental/invalid_tag_id.json
@@ -1,7 +1,7 @@
 {
     "expectedMakeRequestsErrors": [
         {
-            "value": "could not unmarshal openrtb_ext.ImpExtSeedingAlliance: json: cannot unmarshal number into Go struct field ImpExtSeedingAlliance.adUnitId of type string",
+            "value": "could not unmarshal openrtb_ext.ImpExtSeedingAlliance: cannot unmarshal openrtb_ext.ImpExtSeedingAlliance.AdUnitID: expects \" or n, but found 1",
             "comparison": "literal"
         }
     ],
diff --git a/adapters/sharethrough/params_test.go b/adapters/sharethrough/params_test.go
index 3c2d80dfa8b..a7011ab3767 100644
--- a/adapters/sharethrough/params_test.go
+++ b/adapters/sharethrough/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/sharethrough/sharethrough.go b/adapters/sharethrough/sharethrough.go
index fd303c6feff..cf5c65a7364 100644
--- a/adapters/sharethrough/sharethrough.go
+++ b/adapters/sharethrough/sharethrough.go
@@ -7,11 +7,12 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/version"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/version"
 )
 
 var adapterVersion = "10.0"
@@ -41,7 +42,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		modifiableSource = *request.Source
 	}
 	var sourceExt map[string]interface{}
-	if err := json.Unmarshal(modifiableSource.Ext, &sourceExt); err == nil {
+	if err := jsonutil.Unmarshal(modifiableSource.Ext, &sourceExt); err == nil {
 		sourceExt["str"] = adapterVersion
 		sourceExt["version"] = version.Ver
 	} else {
@@ -58,12 +59,12 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 	for _, imp := range request.Imp {
 		// Extract Sharethrough Params
 		var strImpExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &strImpExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &strImpExt); err != nil {
 			errors = append(errors, err)
 			continue
 		}
 		var strImpParams openrtb_ext.ExtImpSharethrough
-		if err := json.Unmarshal(strImpExt.Bidder, &strImpParams); err != nil {
+		if err := jsonutil.Unmarshal(strImpExt.Bidder, &strImpParams); err != nil {
 			errors = append(errors, err)
 			continue
 		}
@@ -128,12 +129,12 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var bidReq openrtb2.BidRequest
-	if err := json.Unmarshal(requestData.Body, &bidReq); err != nil {
+	if err := jsonutil.Unmarshal(requestData.Body, &bidReq); err != nil {
 		return nil, []error{err}
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -197,7 +198,7 @@ func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 
 	if bid.Ext != nil {
 		var bidExt openrtb_ext.ExtBid
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil && bidExt.Prebid != nil {
 			return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
 		}
diff --git a/adapters/sharethrough/sharethrough_test.go b/adapters/sharethrough/sharethrough_test.go
index 2983487ac40..6ca7d9c7ef4 100644
--- a/adapters/sharethrough/sharethrough_test.go
+++ b/adapters/sharethrough/sharethrough_test.go
@@ -3,9 +3,9 @@ package sharethrough
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/silvermob/params_test.go b/adapters/silvermob/params_test.go
index d69171ed78d..9dc9a34eb60 100644
--- a/adapters/silvermob/params_test.go
+++ b/adapters/silvermob/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // TestValidParams makes sure that the silvermob schema accepts all imp.ext fields which we intend to support.
diff --git a/adapters/silvermob/silvermob.go b/adapters/silvermob/silvermob.go
index 636f126147a..5c80240e722 100644
--- a/adapters/silvermob/silvermob.go
+++ b/adapters/silvermob/silvermob.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type SilverMobAdapter struct {
@@ -111,13 +112,13 @@ func (a *SilverMobAdapter) MakeRequests(
 
 func (a *SilverMobAdapter) getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtSilverMob, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("error unmarshaling imp.ext: %s", err.Error()),
 		}
 	}
 	var silvermobExt openrtb_ext.ExtSilverMob
-	if err := json.Unmarshal(bidderExt.Bidder, &silvermobExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &silvermobExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("error unmarshaling imp.ext.bidder: %s", err.Error()),
 		}
@@ -161,7 +162,7 @@ func (a *SilverMobAdapter) MakeBids(
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Error unmarshaling server Response: %s", err),
 		}}
diff --git a/adapters/silvermob/silvermob_test.go b/adapters/silvermob/silvermob_test.go
index ce08651ff59..991a758b4ef 100644
--- a/adapters/silvermob/silvermob_test.go
+++ b/adapters/silvermob/silvermob_test.go
@@ -3,9 +3,9 @@ package silvermob
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/silvermob/silvermobtest/supplemental/invalid-response.json b/adapters/silvermob/silvermobtest/supplemental/invalid-response.json
index f78979db334..353adb84f85 100644
--- a/adapters/silvermob/silvermobtest/supplemental/invalid-response.json
+++ b/adapters/silvermob/silvermobtest/supplemental/invalid-response.json
@@ -112,7 +112,7 @@
   }],
   "expectedMakeBidsErrors": [
     {
-      "value": "Error unmarshaling server Response: json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "Error unmarshaling server Response: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/silvermob/silvermobtest/supplemental/invalid-silvermob-ext-object.json b/adapters/silvermob/silvermobtest/supplemental/invalid-silvermob-ext-object.json
index 090d7aff5b6..1f452e8d289 100644
--- a/adapters/silvermob/silvermobtest/supplemental/invalid-silvermob-ext-object.json
+++ b/adapters/silvermob/silvermobtest/supplemental/invalid-silvermob-ext-object.json
@@ -21,7 +21,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value":  "error unmarshaling imp.ext: json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "error unmarshaling imp.ext: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/silverpush/params_test.go b/adapters/silverpush/params_test.go
index 2a20aa2ff71..d98f413a711 100644
--- a/adapters/silverpush/params_test.go
+++ b/adapters/silverpush/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file intends to test static/bidder-params/silverpush.json
diff --git a/adapters/silverpush/silverpush.go b/adapters/silverpush/silverpush.go
index 2ed554a2594..049b0d5a93f 100644
--- a/adapters/silverpush/silverpush.go
+++ b/adapters/silverpush/silverpush.go
@@ -6,11 +6,12 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 const (
@@ -118,11 +119,11 @@ func setUser(req *openrtb2.BidRequest) error {
 	var userExtRaw map[string]json.RawMessage
 
 	if req.User != nil && req.User.Ext != nil {
-		if err := json.Unmarshal(req.User.Ext, &userExtRaw); err != nil {
+		if err := jsonutil.Unmarshal(req.User.Ext, &userExtRaw); err != nil {
 			return &errortypes.BadInput{Message: "Invalid user.ext."}
 		}
 		if userExtDataRaw, ok := userExtRaw["data"]; ok {
-			if err := json.Unmarshal(userExtDataRaw, &extUser); err != nil {
+			if err := jsonutil.Unmarshal(userExtDataRaw, &extUser); err != nil {
 				return &errortypes.BadInput{Message: "Invalid user.ext.data."}
 			}
 			var userCopy = *req.User
@@ -217,13 +218,13 @@ func setBannerDimension(banner *openrtb2.Banner) (*openrtb2.Banner, error) {
 
 func setPublisherId(req *openrtb2.BidRequest, imp *openrtb2.Imp, impExt *openrtb_ext.ImpExtSilverpush) error {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 
-	if err := json.Unmarshal(bidderExt.Bidder, impExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, impExt); err != nil {
 		return &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -283,7 +284,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/silverpush/silverpush_test.go b/adapters/silverpush/silverpush_test.go
index 7d515bf242c..f953584f0b3 100644
--- a/adapters/silverpush/silverpush_test.go
+++ b/adapters/silverpush/silverpush_test.go
@@ -5,10 +5,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/silverpush/silverpushtest/supplemental/bad-imp-ext-bidder.json b/adapters/silverpush/silverpushtest/supplemental/bad-imp-ext-bidder.json
index 5bedcfe34c6..5621dfbe2d4 100644
--- a/adapters/silverpush/silverpushtest/supplemental/bad-imp-ext-bidder.json
+++ b/adapters/silverpush/silverpushtest/supplemental/bad-imp-ext-bidder.json
@@ -77,7 +77,7 @@
       },
       "expectedMakeRequestsErrors": [
         {
-          "value": "json: cannot unmarshal number into Go value of type openrtb_ext.ImpExtSilverpush",
+          "value": "expect { or n, but found 9",
           "comparison": "literal"
         }
       ]
diff --git a/adapters/silverpush/silverpushtest/supplemental/bad-imp-ext.json b/adapters/silverpush/silverpushtest/supplemental/bad-imp-ext.json
index 7c5b7af90e2..16d7aaf7159 100644
--- a/adapters/silverpush/silverpushtest/supplemental/bad-imp-ext.json
+++ b/adapters/silverpush/silverpushtest/supplemental/bad-imp-ext.json
@@ -75,7 +75,7 @@
       },
       "expectedMakeRequestsErrors": [
         {
-          "value": "json: cannot unmarshal number into Go value of type adapters.ExtImpBidder",
+          "value": "expect { or n, but found 9",
           "comparison": "literal"
         }
       ]
diff --git a/adapters/silverpush/silverpushtest/supplemental/bad-response-unmarshal.json b/adapters/silverpush/silverpushtest/supplemental/bad-response-unmarshal.json
index d6cad0fc5f7..dba093b2dc3 100644
--- a/adapters/silverpush/silverpushtest/supplemental/bad-response-unmarshal.json
+++ b/adapters/silverpush/silverpushtest/supplemental/bad-response-unmarshal.json
@@ -178,7 +178,7 @@
     ],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
       ]
diff --git a/adapters/smaato/native.go b/adapters/smaato/native.go
index b18a5fc4490..2cbcae471c2 100644
--- a/adapters/smaato/native.go
+++ b/adapters/smaato/native.go
@@ -4,7 +4,8 @@ import (
 	"encoding/json"
 	"fmt"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type nativeAd struct {
@@ -13,7 +14,7 @@ type nativeAd struct {
 
 func extractAdmNative(adMarkup string) (string, error) {
 	var nativeAd nativeAd
-	if err := json.Unmarshal([]byte(adMarkup), &nativeAd); err != nil {
+	if err := jsonutil.Unmarshal([]byte(adMarkup), &nativeAd); err != nil {
 		return "", &errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Invalid ad markup %s.", adMarkup),
 		}
diff --git a/adapters/smaato/params_test.go b/adapters/smaato/params_test.go
index d1c334acbfa..7acb42c6960 100644
--- a/adapters/smaato/params_test.go
+++ b/adapters/smaato/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file intends to test static/bidder-params/smaato.json
diff --git a/adapters/smaato/smaato.go b/adapters/smaato/smaato.go
index 2d1579c55bd..3a349204004 100644
--- a/adapters/smaato/smaato.go
+++ b/adapters/smaato/smaato.go
@@ -9,12 +9,13 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/timeutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/timeutil"
 )
 
 const clientVersion = "prebid_server_1.1"
@@ -108,7 +109,7 @@ func (adapter *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -361,7 +362,7 @@ func setUser(request *openrtb2.BidRequest) error {
 	if request.User != nil && request.User.Ext != nil {
 		var userExtRaw map[string]json.RawMessage
 
-		if err := json.Unmarshal(request.User.Ext, &userExtRaw); err != nil {
+		if err := jsonutil.Unmarshal(request.User.Ext, &userExtRaw); err != nil {
 			return &errortypes.BadInput{Message: "Invalid user.ext."}
 		}
 
@@ -369,7 +370,7 @@ func setUser(request *openrtb2.BidRequest) error {
 			var err error
 			var userExtData userExtData
 
-			if err = json.Unmarshal(userExtDataRaw, &userExtData); err != nil {
+			if err = jsonutil.Unmarshal(userExtDataRaw, &userExtData); err != nil {
 				return &errortypes.BadInput{Message: "Invalid user.ext.data."}
 			}
 
@@ -415,7 +416,7 @@ func setSite(request *openrtb2.BidRequest) error {
 		if request.Site.Ext != nil {
 			var siteExt siteExt
 
-			if err := json.Unmarshal(request.Site.Ext, &siteExt); err != nil {
+			if err := jsonutil.Unmarshal(request.Site.Ext, &siteExt); err != nil {
 				return &errortypes.BadInput{Message: "Invalid site.ext."}
 			}
 
@@ -520,14 +521,14 @@ func setImpForAdBreak(imps []openrtb2.Imp) error {
 func makeImpExt(impExtRaw *json.RawMessage) (json.RawMessage, error) {
 	var impExt openrtb_ext.ExtImpExtraDataSmaato
 
-	if err := json.Unmarshal(*impExtRaw, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(*impExtRaw, &impExt); err != nil {
 		return nil, &errortypes.BadInput{Message: "Invalid imp.ext."}
 	}
 
 	if impExtSkadnRaw := impExt.Skadn; impExtSkadnRaw != nil {
 		var impExtSkadn map[string]json.RawMessage
 
-		if err := json.Unmarshal(impExtSkadnRaw, &impExtSkadn); err != nil {
+		if err := jsonutil.Unmarshal(impExtSkadnRaw, &impExtSkadn); err != nil {
 			return nil, &errortypes.BadInput{Message: "Invalid imp.ext.skadn."}
 		}
 	}
@@ -585,7 +586,7 @@ func extractBidExt(bid *openrtb2.Bid) (bidExt, error) {
 	if bid.Ext == nil {
 		return bidExt, nil
 	}
-	if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+	if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 		return bidExt, &errortypes.BadServerResponse{Message: "Invalid bid.ext."}
 	}
 	return bidExt, nil
diff --git a/adapters/smaato/smaato_test.go b/adapters/smaato/smaato_test.go
index d2bb56d14cc..311724ecd82 100644
--- a/adapters/smaato/smaato_test.go
+++ b/adapters/smaato/smaato_test.go
@@ -10,11 +10,11 @@ import (
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/smartadserver/params_test.go b/adapters/smartadserver/params_test.go
index fcd07278be6..fb71edb414d 100644
--- a/adapters/smartadserver/params_test.go
+++ b/adapters/smartadserver/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/smartadserver.json
diff --git a/adapters/smartadserver/smartadserver.go b/adapters/smartadserver/smartadserver.go
index f28c0f618f7..edcb146adaf 100644
--- a/adapters/smartadserver/smartadserver.go
+++ b/adapters/smartadserver/smartadserver.go
@@ -9,10 +9,11 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type SmartAdserverAdapter struct {
@@ -61,7 +62,7 @@ func (a *SmartAdserverAdapter) MakeRequests(request *openrtb2.BidRequest, reqInf
 	// We send one serialized "smartRequest" per impression of the original request.
 	for _, imp := range request.Imp {
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: "Error parsing bidderExt object",
 			})
@@ -69,7 +70,7 @@ func (a *SmartAdserverAdapter) MakeRequests(request *openrtb2.BidRequest, reqInf
 		}
 
 		var smartadserverExt openrtb_ext.ExtImpSmartadserver
-		if err := json.Unmarshal(bidderExt.Bidder, &smartadserverExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &smartadserverExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: "Error parsing smartadserverExt parameters",
 			})
@@ -137,7 +138,7 @@ func (a *SmartAdserverAdapter) MakeBids(internalRequest *openrtb2.BidRequest, ex
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/smartadserver/smartadserver_test.go b/adapters/smartadserver/smartadserver_test.go
index be5c13d54e2..51b1fb09147 100644
--- a/adapters/smartadserver/smartadserver_test.go
+++ b/adapters/smartadserver/smartadserver_test.go
@@ -3,9 +3,9 @@ package smartadserver
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/smartadserver/smartadservertest/supplemental/response-200-without-body.json b/adapters/smartadserver/smartadservertest/supplemental/response-200-without-body.json
index 87196e8c1ad..2b925662e52 100644
--- a/adapters/smartadserver/smartadservertest/supplemental/response-200-without-body.json
+++ b/adapters/smartadserver/smartadservertest/supplemental/response-200-without-body.json
@@ -56,8 +56,8 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/smarthub/params_test.go b/adapters/smarthub/params_test.go
index 3d9a6c351bc..96799700710 100644
--- a/adapters/smarthub/params_test.go
+++ b/adapters/smarthub/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/smarthub/smarthub.go b/adapters/smarthub/smarthub.go
index c170ba5dbd1..080fe01fd1a 100644
--- a/adapters/smarthub/smarthub.go
+++ b/adapters/smarthub/smarthub.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
@@ -41,14 +42,14 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 
 func (a *adapter) getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtSmartHub, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Bidder extension not provided or can't be unmarshalled",
 		}
 	}
 
 	var smarthubExt openrtb_ext.ExtSmartHub
-	if err := json.Unmarshal(bidderExt.Bidder, &smarthubExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &smarthubExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Error while unmarshaling bidder extension",
 		}
@@ -135,7 +136,7 @@ func (a *adapter) MakeBids(
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -160,7 +161,7 @@ func (a *adapter) MakeBids(
 	var bidExt bidExt
 	var bidType openrtb_ext.BidType
 
-	if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+	if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Field BidExt is required",
 		}}
diff --git a/adapters/smarthub/smarthub_test.go b/adapters/smarthub/smarthub_test.go
index 7194421a20e..a932364bd00 100644
--- a/adapters/smarthub/smarthub_test.go
+++ b/adapters/smarthub/smarthub_test.go
@@ -3,9 +3,9 @@ package smarthub
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/smarthub/smarthubtest/supplemental/bad-response.json b/adapters/smarthub/smarthubtest/supplemental/bad-response.json
index 09e5d9ab442..5911c140a05 100644
--- a/adapters/smarthub/smarthubtest/supplemental/bad-response.json
+++ b/adapters/smarthub/smarthubtest/supplemental/bad-response.json
@@ -101,7 +101,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/smartrtb/smartrtb.go b/adapters/smartrtb/smartrtb.go
index 1c5d1abb1de..68fd9bfccb0 100644
--- a/adapters/smartrtb/smartrtb.go
+++ b/adapters/smartrtb/smartrtb.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // Base adapter structure.
@@ -62,14 +63,14 @@ func (adapter *SmartRTBAdapter) buildEndpointURL(pubID string) (string, error) {
 
 func parseExtImp(dst *bidRequestExt, imp *openrtb2.Imp) error {
 	var ext adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
 		return &errortypes.BadInput{
 			Message: err.Error(),
 		}
 	}
 
 	var src openrtb_ext.ExtImpSmartRTB
-	if err := json.Unmarshal(ext.Bidder, &src); err != nil {
+	if err := jsonutil.Unmarshal(ext.Bidder, &src); err != nil {
 		return &errortypes.BadInput{
 			Message: err.Error(),
 		}
@@ -160,7 +161,7 @@ func (s *SmartRTBAdapter) MakeBids(
 	}
 
 	var brs openrtb2.BidResponse
-	if err := json.Unmarshal(rs.Body, &brs); err != nil {
+	if err := jsonutil.Unmarshal(rs.Body, &brs); err != nil {
 		return nil, []error{err}
 	}
 
@@ -168,7 +169,7 @@ func (s *SmartRTBAdapter) MakeBids(
 	for _, seat := range brs.SeatBid {
 		for i := range seat.Bid {
 			var ext bidExt
-			if err := json.Unmarshal(seat.Bid[i].Ext, &ext); err != nil {
+			if err := jsonutil.Unmarshal(seat.Bid[i].Ext, &ext); err != nil {
 				return nil, []error{&errortypes.BadServerResponse{
 					Message: "Invalid bid extension from endpoint.",
 				}}
diff --git a/adapters/smartrtb/smartrtb_test.go b/adapters/smartrtb/smartrtb_test.go
index c0e83d3b826..060323a7ac9 100644
--- a/adapters/smartrtb/smartrtb_test.go
+++ b/adapters/smartrtb/smartrtb_test.go
@@ -3,9 +3,9 @@ package smartrtb
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/smartrtb/smartrtbtest/supplemental/bad-bidder-ext.json b/adapters/smartrtb/smartrtbtest/supplemental/bad-bidder-ext.json
index b261415de4d..774cd2141d6 100644
--- a/adapters/smartrtb/smartrtbtest/supplemental/bad-bidder-ext.json
+++ b/adapters/smartrtb/smartrtbtest/supplemental/bad-bidder-ext.json
@@ -24,8 +24,8 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/smartrtb/smartrtbtest/supplemental/bad-imp-ext.json b/adapters/smartrtb/smartrtbtest/supplemental/bad-imp-ext.json
index 1c0f57d2f34..b5b77d9e57a 100644
--- a/adapters/smartrtb/smartrtbtest/supplemental/bad-imp-ext.json
+++ b/adapters/smartrtb/smartrtbtest/supplemental/bad-imp-ext.json
@@ -25,8 +25,8 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/smartrtb/smartrtbtest/supplemental/bad-pub-value.json b/adapters/smartrtb/smartrtbtest/supplemental/bad-pub-value.json
index 93b45c747fd..cff39cc06b1 100644
--- a/adapters/smartrtb/smartrtbtest/supplemental/bad-pub-value.json
+++ b/adapters/smartrtb/smartrtbtest/supplemental/bad-pub-value.json
@@ -30,7 +30,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal number into Go struct field ExtImpSmartRTB.pub_id of type string",
+      "value": "cannot unmarshal PubID: expects \" or n, but found 0",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/smartrtb/smartrtbtest/supplemental/invalid-bid-json.json b/adapters/smartrtb/smartrtbtest/supplemental/invalid-bid-json.json
index a8065446443..51b2ec8b794 100644
--- a/adapters/smartrtb/smartrtbtest/supplemental/invalid-bid-json.json
+++ b/adapters/smartrtb/smartrtbtest/supplemental/invalid-bid-json.json
@@ -70,7 +70,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/smartrtb/smartrtbtest/supplemental/invalid-imp-ext.json b/adapters/smartrtb/smartrtbtest/supplemental/invalid-imp-ext.json
index 13485f797ba..743f492bba1 100644
--- a/adapters/smartrtb/smartrtbtest/supplemental/invalid-imp-ext.json
+++ b/adapters/smartrtb/smartrtbtest/supplemental/invalid-imp-ext.json
@@ -25,7 +25,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/smartx/params_test.go b/adapters/smartx/params_test.go
index 81ee269a5ef..837c63568a4 100644
--- a/adapters/smartx/params_test.go
+++ b/adapters/smartx/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/smartx/smartx.go b/adapters/smartx/smartx.go
index 9254ec0d95c..154f511f03c 100644
--- a/adapters/smartx/smartx.go
+++ b/adapters/smartx/smartx.go
@@ -7,9 +7,10 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -63,7 +64,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/smartx/smartx_test.go b/adapters/smartx/smartx_test.go
index 503a547d2fc..6d257528656 100644
--- a/adapters/smartx/smartx_test.go
+++ b/adapters/smartx/smartx_test.go
@@ -3,9 +3,9 @@ package smartx
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testsDir = "smartxtest"
diff --git a/adapters/smartyads/params_test.go b/adapters/smartyads/params_test.go
index 0e1b7186397..ed49894629d 100644
--- a/adapters/smartyads/params_test.go
+++ b/adapters/smartyads/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/smartyads/smartyads.go b/adapters/smartyads/smartyads.go
index d00a808d025..3a07edaf628 100644
--- a/adapters/smartyads/smartyads.go
+++ b/adapters/smartyads/smartyads.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type SmartyAdsAdapter struct {
@@ -109,13 +110,13 @@ func (a *SmartyAdsAdapter) MakeRequests(
 
 func (a *SmartyAdsAdapter) getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtSmartyAds, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
 	}
 	var smartyadsExt openrtb_ext.ExtSmartyAds
-	if err := json.Unmarshal(bidderExt.Bidder, &smartyadsExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &smartyadsExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
@@ -169,7 +170,7 @@ func (a *SmartyAdsAdapter) MakeBids(
 
 	responseBody := bidderRawResponse.Body
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/smartyads/smartyads_test.go b/adapters/smartyads/smartyads_test.go
index 6a697c1d5f4..330f3900a00 100644
--- a/adapters/smartyads/smartyads_test.go
+++ b/adapters/smartyads/smartyads_test.go
@@ -3,9 +3,9 @@ package smartyads
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/smilewanted/params_test.go b/adapters/smilewanted/params_test.go
index ac055542417..78a29dc046d 100644
--- a/adapters/smilewanted/params_test.go
+++ b/adapters/smilewanted/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/smilewanted.json
diff --git a/adapters/smilewanted/smilewanted.go b/adapters/smilewanted/smilewanted.go
index b17b3825540..5484c8419d9 100644
--- a/adapters/smilewanted/smilewanted.go
+++ b/adapters/smilewanted/smilewanted.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -61,14 +62,14 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Bad server response: %s.", err),
 		}}
 	}
 
 	var bidReq openrtb2.BidRequest
-	if err := json.Unmarshal(externalRequest.Body, &bidReq); err != nil {
+	if err := jsonutil.Unmarshal(externalRequest.Body, &bidReq); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/smilewanted/smilewanted_test.go b/adapters/smilewanted/smilewanted_test.go
index 3df23f42911..b63c2172e93 100644
--- a/adapters/smilewanted/smilewanted_test.go
+++ b/adapters/smilewanted/smilewanted_test.go
@@ -3,9 +3,9 @@ package smilewanted
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/smilewanted/smilewantedtest/supplemental/bad-server-response.json b/adapters/smilewanted/smilewantedtest/supplemental/bad-server-response.json
index 63826e325fa..e6f59ab83a1 100644
--- a/adapters/smilewanted/smilewantedtest/supplemental/bad-server-response.json
+++ b/adapters/smilewanted/smilewantedtest/supplemental/bad-server-response.json
@@ -57,7 +57,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "Bad server response: json: cannot unmarshal string into Go value of type openrtb2.BidResponse.",
+      "value": "Bad server response: expect { or n, but found \".",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/smrtconnect/smrtconnect.go b/adapters/smrtconnect/smrtconnect.go
index bd68e267eaf..4ecde49cea5 100644
--- a/adapters/smrtconnect/smrtconnect.go
+++ b/adapters/smrtconnect/smrtconnect.go
@@ -6,11 +6,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -64,13 +65,13 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 
 func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtSmrtconnect, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
 	}
 	var smrtconnectExt openrtb_ext.ExtSmrtconnect
-	if err := json.Unmarshal(bidderExt.Bidder, &smrtconnectExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &smrtconnectExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
@@ -94,7 +95,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/smrtconnect/smrtconnect_test.go b/adapters/smrtconnect/smrtconnect_test.go
index 38d071d94d1..2b020c1e3ae 100644
--- a/adapters/smrtconnect/smrtconnect_test.go
+++ b/adapters/smrtconnect/smrtconnect_test.go
@@ -3,9 +3,9 @@ package smrtconnect
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/sonobi/params_test.go b/adapters/sonobi/params_test.go
index c84a99edfdf..7ffff8ffdd0 100644
--- a/adapters/sonobi/params_test.go
+++ b/adapters/sonobi/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/sonobi.json
diff --git a/adapters/sonobi/sonobi.go b/adapters/sonobi/sonobi.go
index 65ea0d33e7c..cf00595c6bf 100644
--- a/adapters/sonobi/sonobi.go
+++ b/adapters/sonobi/sonobi.go
@@ -4,12 +4,14 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // SonobiAdapter - Sonobi SonobiAdapter definition
@@ -41,18 +43,37 @@ func (a *SonobiAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adap
 		reqCopy.Imp = append(make([]openrtb2.Imp, 0, 1), imp)
 
 		var bidderExt adapters.ExtImpBidder
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
 
-		if err = json.Unmarshal(bidderExt.Bidder, &sonobiExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &sonobiExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
 
 		reqCopy.Imp[0].TagID = sonobiExt.TagID
 
+		// If the bid floor currency is not USD, do the conversion to USD
+		if reqCopy.Imp[0].BidFloor > 0 && reqCopy.Imp[0].BidFloorCur != "" && strings.ToUpper(reqCopy.Imp[0].BidFloorCur) != "USD" {
+
+			// Convert to US dollars
+			convertedValue, err := reqInfo.ConvertCurrency(reqCopy.Imp[0].BidFloor, reqCopy.Imp[0].BidFloorCur, "USD")
+			if err != nil {
+				errs = append(errs, err)
+				continue
+			}
+
+			// Update after conversion. All imp elements inside request.Imp are shallow copies
+			// therefore, their non-pointer values are not shared memory and are safe to modify.
+			reqCopy.Imp[0].BidFloorCur = "USD"
+			reqCopy.Imp[0].BidFloor = convertedValue
+		}
+
+		// Sonobi only bids in USD
+		reqCopy.Cur = append(make([]string, 0, 1), "USD")
+
 		adapterReq, errors := a.makeRequest(&reqCopy)
 		if adapterReq != nil {
 			adapterRequests = append(adapterRequests, adapterReq)
@@ -110,24 +131,24 @@ func (a *SonobiAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
 	bidResponse := adapters.NewBidderResponseWithBidsCapacity(5)
+	bidResponse.Currency = "USD" // Sonobi only bids in USD
 
 	for _, sb := range bidResp.SeatBid {
 		for i := range sb.Bid {
-			bidType, err := getMediaTypeForImp(sb.Bid[i].ImpID, internalRequest.Imp)
+			bid := sb.Bid[i]
+			bidType, err := getMediaTypeForImp(bid.ImpID, internalRequest.Imp)
 			if err != nil {
-				errs = append(errs, err)
-			} else {
-				b := &adapters.TypedBid{
-					Bid:     &sb.Bid[i],
-					BidType: bidType,
-				}
-				bidResponse.Bids = append(bidResponse.Bids, b)
+				return nil, []error{err}
 			}
+			bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
+				Bid:     &bid,
+				BidType: bidType,
+			})
 		}
 	}
 	return bidResponse, errs
@@ -140,6 +161,9 @@ func getMediaTypeForImp(impID string, imps []openrtb2.Imp) (openrtb_ext.BidType,
 			if imp.Banner == nil && imp.Video != nil {
 				mediaType = openrtb_ext.BidTypeVideo
 			}
+			if imp.Banner == nil && imp.Video == nil && imp.Native != nil {
+				mediaType = openrtb_ext.BidTypeNative
+			}
 			return mediaType, nil
 		}
 	}
diff --git a/adapters/sonobi/sonobi_test.go b/adapters/sonobi/sonobi_test.go
index 3123781323d..aa9f44ed7a2 100644
--- a/adapters/sonobi/sonobi_test.go
+++ b/adapters/sonobi/sonobi_test.go
@@ -3,9 +3,9 @@ package sonobi
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/sonobi/sonobitest/exemplary/banner.json b/adapters/sonobi/sonobitest/exemplary/banner.json
index d60ddb44a8b..f3a39f74a27 100644
--- a/adapters/sonobi/sonobitest/exemplary/banner.json
+++ b/adapters/sonobi/sonobitest/exemplary/banner.json
@@ -1,5 +1,6 @@
 {
     "mockBidRequest": {
+        "cur": ["GBP"],
         "id": "some-request-id",
         "site": {
             "page": "http://tester.go.sonobi.com",
@@ -48,6 +49,7 @@
                 },
                 "uri": "https://apex.go.sonobi.com/prebid?partnerid=71d9d3d8af",
                 "body": {
+                    "cur": ["USD"],
                     "id": "some-request-id",
                     "imp": [
                         {
diff --git a/adapters/sonobi/sonobitest/exemplary/native.json b/adapters/sonobi/sonobitest/exemplary/native.json
new file mode 100644
index 00000000000..ff9eb4c4693
--- /dev/null
+++ b/adapters/sonobi/sonobitest/exemplary/native.json
@@ -0,0 +1,143 @@
+{
+  "mockBidRequest": {
+    "cur": ["USD"],
+    "id": "some-request-id",
+    "site": {
+      "page": "http://tester.go.sonobi.com",
+      "domain": "sonobi.com"
+    },
+    "device": {
+      "ip": "123.123.123.123"
+    },
+    "imp": [
+      {
+        "id": "some-impression-id",
+        "native": {
+          "request": "{\"ver\":\"1.2\",\"context\":1,\"contextsubtype\":11,\"plcmttype\":2,\"plcmtcnt\":3,\"assets\":[{\"id\":1,\"required\":1,\"title\":{\"len\":1000}},{\"id\":2,\"required\":1,\"img\":{\"type\":3,\"wmin\":600,\"hmin\":600}},{\"id\":3,\"required\":0,\"data\":{\"type\":1,\"len\":200}},{\"id\":4,\"required\":0,\"data\":{\"type\":2,\"len\":3000}},{\"id\":5,\"required\":0,\"data\":{\"type\":6,\"len\":60}},{\"id\":6,\"required\":0,\"data\":{\"type\":500}},{\"id\":10,\"required\":0,\"data\":{\"type\":12,\"len\":15}}],\"eventtrackers\":[{\"event\":1,\"methods\":[1,2]},{\"event\":2,\"methods\":[1]}],\"privacy\":1}",
+          "ver": "1.2",
+          "battr": [
+            1,
+            2,
+            6,
+            7,
+            8,
+            9,
+            10,
+            14
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "TagID": "/7780971/apex_3pdm_integration"
+          }
+        }
+      }
+    ],
+    "test": 1,
+    "tmax": 500
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "headers": {
+          "Accept": [
+            "application/json"
+          ],
+          "Content-Type": [
+            "application/json;charset=utf-8"
+          ]
+        },
+        "uri": "https://apex.go.sonobi.com/prebid?partnerid=71d9d3d8af",
+        "body": {
+          "cur": ["USD"],
+          "id": "some-request-id",
+          "imp": [
+            {
+              "id": "some-impression-id",
+              "native": {
+                "request": "{\"ver\":\"1.2\",\"context\":1,\"contextsubtype\":11,\"plcmttype\":2,\"plcmtcnt\":3,\"assets\":[{\"id\":1,\"required\":1,\"title\":{\"len\":1000}},{\"id\":2,\"required\":1,\"img\":{\"type\":3,\"wmin\":600,\"hmin\":600}},{\"id\":3,\"required\":0,\"data\":{\"type\":1,\"len\":200}},{\"id\":4,\"required\":0,\"data\":{\"type\":2,\"len\":3000}},{\"id\":5,\"required\":0,\"data\":{\"type\":6,\"len\":60}},{\"id\":6,\"required\":0,\"data\":{\"type\":500}},{\"id\":10,\"required\":0,\"data\":{\"type\":12,\"len\":15}}],\"eventtrackers\":[{\"event\":1,\"methods\":[1,2]},{\"event\":2,\"methods\":[1]}],\"privacy\":1}",
+                "ver": "1.2",
+                "battr": [
+                  1,
+                  2,
+                  6,
+                  7,
+                  8,
+                  9,
+                  10,
+                  14
+                ]
+              },
+              "tagid": "/7780971/apex_3pdm_integration",
+              "ext": {
+                "bidder": {
+                  "TagID": "/7780971/apex_3pdm_integration"
+                }
+              }
+            }
+          ],
+          "site": {
+            "domain": "sonobi.com",
+            "page": "http://tester.go.sonobi.com"
+          },
+          "device": {
+            "ip": "123.123.123.123"
+          },
+          "test": 1,
+          "tmax": 500
+        },
+        "impIDs": [
+          "some-impression-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "some-request-id",
+          "seatbid": [
+            {
+              "bid": [
+                {
+                  "id": "1",
+                  "impid": "some-impression-id",
+                  "price": 2.8649999999999998,
+                  "adm": "test-markup",
+                  "adomain": [
+                    "sonobi.com"
+                  ],
+                  "cid": "house",
+                  "crid": "sandbox"
+
+                }
+              ],
+              "seat": "sonobi"
+            }
+          ],
+          "bidid": "sandbox_642305097",
+          "cur": "USD"
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "1",
+            "impid": "some-impression-id",
+            "price": 2.8649999999999998,
+            "adm": "test-markup",
+            "adomain": [
+              "sonobi.com"
+            ],
+            "cid": "house",
+            "crid": "sandbox"
+          },
+          "type": "native"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/sonobi/sonobitest/exemplary/no-bid.json b/adapters/sonobi/sonobitest/exemplary/no-bid.json
index ef31c9f2ba4..a43d1f670a0 100644
--- a/adapters/sonobi/sonobitest/exemplary/no-bid.json
+++ b/adapters/sonobi/sonobitest/exemplary/no-bid.json
@@ -1,5 +1,6 @@
 {
   "mockBidRequest": {
+    "cur": ["USD"],
     "id": "some-request-id",
     "site": {
       "page": "http://tester.go.sonobi.com",
@@ -48,6 +49,7 @@
         },
         "uri": "https://apex.go.sonobi.com/prebid?partnerid=71d9d3d8af",
         "body": {
+          "cur": ["USD"],
           "id": "some-request-id",
           "imp": [
             {
diff --git a/adapters/sonobi/sonobitest/supplemental/currency-conversion.json b/adapters/sonobi/sonobitest/supplemental/currency-conversion.json
new file mode 100644
index 00000000000..522e1bd7326
--- /dev/null
+++ b/adapters/sonobi/sonobitest/supplemental/currency-conversion.json
@@ -0,0 +1,172 @@
+{
+  "mockBidRequest": {
+    "cur": ["GBP"],
+    "id": "some-request-id",
+    "site": {
+      "page": "http://tester.go.sonobi.com",
+      "domain": "sonobi.com"
+    },
+    "device": {
+      "ip": "123.123.123.123"
+    },
+    "imp": [
+      {
+        "id": "some-impression-id",
+        "banner": {
+          "w": 300,
+          "h": 250,
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            },
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "bidfloor": 1.00,
+        "bidfloorcur": "GBP",
+        "ext": {
+          "bidder": {
+            "TagID": "/7780971/apex_3pdm_integration"
+          }
+        }
+      }
+    ],
+    "ext": {
+      "prebid": {
+        "currency": {
+          "rates": {
+            "GBP": {
+              "USD": 0.05
+            }
+          },
+          "usepbsrates": false
+        }
+      }
+    },
+    "test": 1,
+    "tmax": 500
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "headers": {
+          "Accept": [
+            "application/json"
+          ],
+          "Content-Type": [
+            "application/json;charset=utf-8"
+          ]
+        },
+        "uri": "https://apex.go.sonobi.com/prebid?partnerid=71d9d3d8af",
+        "body": {
+          "cur": ["USD"],
+          "id": "some-request-id",
+          "imp": [
+            {
+              "id": "some-impression-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 300,
+                    "h": 250
+                  },
+                  {
+                    "w": 300,
+                    "h": 600
+                  }
+                ],
+                "w": 300,
+                "h": 250
+              },
+              "bidfloor": 0.05,
+              "bidfloorcur": "USD",
+              "tagid": "/7780971/apex_3pdm_integration",
+              "ext": {
+                "bidder": {
+                  "TagID": "/7780971/apex_3pdm_integration"
+                }
+              }
+            }
+          ],
+          "ext": {
+            "prebid": {
+              "currency": {
+                "rates": {
+                  "GBP": {
+                    "USD": 0.05
+                  }
+                },
+                "usepbsrates": false
+              }
+            }
+          },
+          "site": {
+            "domain": "sonobi.com",
+            "page": "http://tester.go.sonobi.com"
+          },
+          "device": {
+            "ip": "123.123.123.123"
+          },
+          "test": 1,
+          "tmax": 500
+        },
+        "impIDs":["some-impression-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "some-request-id",
+          "seatbid": [
+            {
+              "bid": [
+                {
+                  "id": "1",
+                  "impid": "some-impression-id",
+                  "price": 2.8649999999999998,
+                  "adm": "<script type=\"text/javascript\" src=\"http://iad-2.go.sonobi.com/sbid.js?demand&aid=sandbox_642305097&aic=${AUCTION_PRICE}&pid=71d9d3d8af&h=6.137\"></script>",
+                  "adomain": [
+                    "sonobi.com"
+                  ],
+                  "cid": "house",
+                  "crid": "sandbox",
+                  "h": 1,
+                  "w": 1
+                }
+              ],
+              "seat": "sonobi"
+            }
+          ],
+          "bidid": "sandbox_642305097",
+          "cur": "USD"
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "1",
+            "impid": "some-impression-id",
+            "price": 2.8649999999999998,
+            "adm": "<script type=\"text/javascript\" src=\"http://iad-2.go.sonobi.com/sbid.js?demand&aid=sandbox_642305097&aic=${AUCTION_PRICE}&pid=71d9d3d8af&h=6.137\"></script>",
+            "adomain": [
+              "sonobi.com"
+            ],
+            "cid": "house",
+            "crid": "sandbox",
+            "h": 1,
+            "w": 1
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/sovrn/sovrn.go b/adapters/sovrn/sovrn.go
index 83ab136c963..ea28891883d 100644
--- a/adapters/sovrn/sovrn.go
+++ b/adapters/sovrn/sovrn.go
@@ -8,10 +8,11 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 )
@@ -50,7 +51,7 @@ func (s *SovrnAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapt
 
 	for _, imp := range request.Imp {
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -58,7 +59,7 @@ func (s *SovrnAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapt
 		}
 
 		var sovrnExt openrtb_ext.ExtImpSovrn
-		if err := json.Unmarshal(bidderExt.Bidder, &sovrnExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &sovrnExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -154,7 +155,7 @@ func (s *SovrnAdapter) MakeBids(request *openrtb2.BidRequest, bidderRequest *ada
 	}
 
 	var bidResponse openrtb2.BidResponse
-	if err := json.Unmarshal(bidderResponse.Body, &bidResponse); err != nil {
+	if err := jsonutil.Unmarshal(bidderResponse.Body, &bidResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
 		}}
diff --git a/adapters/sovrn/sovrn_test.go b/adapters/sovrn/sovrn_test.go
index 1e041933e6c..f2d61d166e2 100644
--- a/adapters/sovrn/sovrn_test.go
+++ b/adapters/sovrn/sovrn_test.go
@@ -3,9 +3,9 @@ package sovrn
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/sovrnXsp/params_test.go b/adapters/sovrnXsp/params_test.go
index cca8b22cf51..91d31ec54dc 100644
--- a/adapters/sovrnXsp/params_test.go
+++ b/adapters/sovrnXsp/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/sovrnXsp/sovrnXsp.go b/adapters/sovrnXsp/sovrnXsp.go
index ed97697e824..7dc90adfd7f 100644
--- a/adapters/sovrnXsp/sovrnXsp.go
+++ b/adapters/sovrnXsp/sovrnXsp.go
@@ -5,10 +5,11 @@ import (
 	"fmt"
 	"net/http"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 )
@@ -49,7 +50,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 		}
 
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			err = &errortypes.BadInput{
 				Message: fmt.Sprintf("imp #%d: ext.bidder not provided", idx),
 			}
@@ -58,7 +59,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 		}
 
 		var xspExt openrtb_ext.ExtImpSovrnXsp
-		if err := json.Unmarshal(bidderExt.Bidder, &xspExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &xspExt); err != nil {
 			err = &errortypes.BadInput{
 				Message: fmt.Sprintf("imp #%d: %s", idx, err.Error()),
 			}
@@ -111,7 +112,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -122,7 +123,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 		for _, bid := range seatBid.Bid {
 			bid := bid
 			var ext bidExt
-			if err := json.Unmarshal(bid.Ext, &ext); err != nil {
+			if err := jsonutil.Unmarshal(bid.Ext, &ext); err != nil {
 				errors = append(errors, err)
 				continue
 			}
diff --git a/adapters/sovrnXsp/sovrnXsp_test.go b/adapters/sovrnXsp/sovrnXsp_test.go
index 4c93fc39fa8..3a82e29a54c 100644
--- a/adapters/sovrnXsp/sovrnXsp_test.go
+++ b/adapters/sovrnXsp/sovrnXsp_test.go
@@ -3,9 +3,9 @@ package sovrnXsp
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/sspBC/sspbc.go b/adapters/sspBC/sspbc.go
index 59dffbdfbea..ae7d5f40e14 100644
--- a/adapters/sspBC/sspbc.go
+++ b/adapters/sspBC/sspbc.go
@@ -11,10 +11,11 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
@@ -147,7 +148,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(externalResponse.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(externalResponse.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -192,7 +193,7 @@ func (a *adapter) impToBid(internalRequest *openrtb2.BidRequest, seatBid openrtb
 
 	// read additional data from proxy
 	var bidDataExt responseExt
-	if err := json.Unmarshal(bid.Ext, &bidDataExt); err != nil {
+	if err := jsonutil.Unmarshal(bid.Ext, &bidDataExt); err != nil {
 		return err
 	}
 	/*
@@ -289,8 +290,8 @@ func getBidParameters(imp openrtb2.Imp) openrtb_ext.ExtImpSspbc {
 	var extBidder adapters.ExtImpBidder
 	var extSSP openrtb_ext.ExtImpSspbc
 
-	if err := json.Unmarshal(imp.Ext, &extBidder); err == nil {
-		_ = json.Unmarshal(extBidder.Bidder, &extSSP)
+	if err := jsonutil.Unmarshal(imp.Ext, &extBidder); err == nil {
+		_ = jsonutil.Unmarshal(extBidder.Bidder, &extSSP)
 	}
 
 	return extSSP
diff --git a/adapters/sspBC/sspbc_test.go b/adapters/sspBC/sspbc_test.go
index 3c1f931bfb3..2d709f4c463 100644
--- a/adapters/sspBC/sspbc_test.go
+++ b/adapters/sspBC/sspbc_test.go
@@ -3,9 +3,9 @@ package sspBC
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/sspBC/sspbctest/supplemental/bad_response.json b/adapters/sspBC/sspbctest/supplemental/bad_response.json
index 7859596d2f6..14f7d4ddb11 100644
--- a/adapters/sspBC/sspbctest/supplemental/bad_response.json
+++ b/adapters/sspBC/sspbctest/supplemental/bad_response.json
@@ -93,7 +93,7 @@
     ],
     "expectedMakeBidsErrors": [
         {
-            "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+            "value": "expect { or n, but found \"",
             "comparison": "literal"
         }
     ]
diff --git a/adapters/stroeerCore/params_test.go b/adapters/stroeerCore/params_test.go
index ac8075c2251..4050a219599 100644
--- a/adapters/stroeerCore/params_test.go
+++ b/adapters/stroeerCore/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/stroeerCore/stroeercore.go b/adapters/stroeerCore/stroeercore.go
index 4975c32e3b3..1d503726eb3 100644
--- a/adapters/stroeerCore/stroeercore.go
+++ b/adapters/stroeerCore/stroeercore.go
@@ -7,10 +7,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -59,7 +60,7 @@ func (a *adapter) MakeBids(bidRequest *openrtb2.BidRequest, requestData *adapter
 	var errors []error
 	stroeerResponse := response{}
 
-	if err := json.Unmarshal(responseData.Body, &stroeerResponse); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &stroeerResponse); err != nil {
 		errors = append(errors, err)
 		return nil, errors
 	}
@@ -111,13 +112,13 @@ func (a *adapter) MakeRequests(bidRequest *openrtb2.BidRequest, extraRequestInfo
 	for idx := range bidRequest.Imp {
 		imp := &bidRequest.Imp[idx]
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errors = append(errors, err)
 			continue
 		}
 
 		var stroeerExt openrtb_ext.ExtImpStroeerCore
-		if err := json.Unmarshal(bidderExt.Bidder, &stroeerExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &stroeerExt); err != nil {
 			errors = append(errors, err)
 			continue
 		}
diff --git a/adapters/stroeerCore/stroeercore_test.go b/adapters/stroeerCore/stroeercore_test.go
index 153f3137c07..b0f6204880c 100644
--- a/adapters/stroeerCore/stroeercore_test.go
+++ b/adapters/stroeerCore/stroeercore_test.go
@@ -3,9 +3,9 @@ package stroeerCore
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/taboola/params_test.go b/adapters/taboola/params_test.go
index adcaa0334f7..8018c4b9d97 100644
--- a/adapters/taboola/params_test.go
+++ b/adapters/taboola/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/taboola/taboola.go b/adapters/taboola/taboola.go
index 6621c78f6eb..a11fbf6ce73 100644
--- a/adapters/taboola/taboola.go
+++ b/adapters/taboola/taboola.go
@@ -11,11 +11,12 @@ import (
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -86,7 +87,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -174,11 +175,11 @@ func createTaboolaRequests(request *openrtb2.BidRequest) (taboolaRequests []*ope
 		imp := modifiedRequest.Imp[i]
 
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
-		if err := json.Unmarshal(bidderExt.Bidder, &taboolaExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &taboolaExt); err != nil {
 			errs = append(errs, err)
 			continue
 		}
diff --git a/adapters/taboola/taboola_test.go b/adapters/taboola/taboola_test.go
index bd674440150..082e480943e 100644
--- a/adapters/taboola/taboola_test.go
+++ b/adapters/taboola/taboola_test.go
@@ -3,9 +3,9 @@ package taboola
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/taboola/taboolatest/supplemental/noValidImpression.json b/adapters/taboola/taboolatest/supplemental/noValidImpression.json
index 2ecf5594817..eb3ff2ec384 100644
--- a/adapters/taboola/taboolatest/supplemental/noValidImpression.json
+++ b/adapters/taboola/taboolatest/supplemental/noValidImpression.json
@@ -40,7 +40,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal number into Go struct field ImpExtTaboola.publisherId of type string",
+      "value": "cannot unmarshal openrtb_ext.ImpExtTaboola.PublisherId: expects \" or n, but found 1",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/tappx/params_test.go b/adapters/tappx/params_test.go
index ddfcbeb021f..07b56bf80c8 100644
--- a/adapters/tappx/params_test.go
+++ b/adapters/tappx/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/tappx/tappx.go b/adapters/tappx/tappx.go
index e50a5089c1d..a0c6d9c7dd2 100644
--- a/adapters/tappx/tappx.go
+++ b/adapters/tappx/tappx.go
@@ -11,11 +11,12 @@ import (
 	"time"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const TAPPX_BIDDER_VERSION = "1.5"
@@ -57,13 +58,13 @@ func (a *TappxAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapt
 	}
 
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(request.Imp[0].Ext, &bidderExt); err != nil {
 		return nil, []error{&errortypes.BadInput{
 			Message: "Error parsing bidderExt object",
 		}}
 	}
 	var tappxExt openrtb_ext.ExtImpTappx
-	if err := json.Unmarshal(bidderExt.Bidder, &tappxExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &tappxExt); err != nil {
 		return nil, []error{&errortypes.BadInput{
 			Message: "Error parsing tappxExt parameters",
 		}}
@@ -198,7 +199,7 @@ func (a *TappxAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRe
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/tappx/tappx_test.go b/adapters/tappx/tappx_test.go
index 803dfa5bde2..bf4e4f9f17e 100644
--- a/adapters/tappx/tappx_test.go
+++ b/adapters/tappx/tappx_test.go
@@ -4,9 +4,9 @@ import (
 	"regexp"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
diff --git a/adapters/teads/teads.go b/adapters/teads/teads.go
index fbea4fcd96f..402392d1ccc 100644
--- a/adapters/teads/teads.go
+++ b/adapters/teads/teads.go
@@ -9,11 +9,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // Builder builds a new instance of the Teads adapter for the given bidder with the given config.
@@ -77,7 +78,7 @@ func updateImpObject(imps []openrtb2.Imp) error {
 		}
 
 		var defaultImpExt defaultBidderImpExtension
-		if err := json.Unmarshal(imp.Ext, &defaultImpExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &defaultImpExt); err != nil {
 			return &errortypes.BadInput{
 				Message: "Error parsing Imp.Ext object",
 			}
@@ -136,7 +137,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, _ *adapters.Req
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -172,7 +173,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, _ *adapters.Req
 
 func getTeadsRendererFromBidExt(ext json.RawMessage) (*teadsBidExt, []error) {
 	var bidExtTeads teadsBidExt
-	if err := json.Unmarshal(ext, &bidExtTeads); err != nil {
+	if err := jsonutil.Unmarshal(ext, &bidExtTeads); err != nil {
 		return nil, []error{err}
 	}
 	if bidExtTeads.Prebid.Meta.RendererName == "" {
diff --git a/adapters/teads/teads_test.go b/adapters/teads/teads_test.go
index c9f807ace21..8499e6f1399 100644
--- a/adapters/teads/teads_test.go
+++ b/adapters/teads/teads_test.go
@@ -3,9 +3,9 @@ package teads
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/telaria/params_test.go b/adapters/telaria/params_test.go
index 9e451ca091e..7b1dfe08546 100644
--- a/adapters/telaria/params_test.go
+++ b/adapters/telaria/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/telaria/telaria.go b/adapters/telaria/telaria.go
index 3658bfdf0b7..1805bfaea0a 100644
--- a/adapters/telaria/telaria.go
+++ b/adapters/telaria/telaria.go
@@ -7,10 +7,11 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const Endpoint = "https://ads.tremorhub.com/ad/rtb/prebid"
@@ -99,7 +100,7 @@ func GetHeaders(request *openrtb2.BidRequest) *http.Header {
 // Checks the imp[i].ext object and returns a imp.ext object as per ExtImpTelaria format
 func (a *TelariaAdapter) FetchTelariaExtImpParams(imp *openrtb2.Imp) (*openrtb_ext.ExtImpTelaria, error) {
 	var bidderExt adapters.ExtImpBidder
-	err := json.Unmarshal(imp.Ext, &bidderExt)
+	err := jsonutil.Unmarshal(imp.Ext, &bidderExt)
 
 	if err != nil {
 		err = &errortypes.BadInput{
@@ -110,7 +111,7 @@ func (a *TelariaAdapter) FetchTelariaExtImpParams(imp *openrtb2.Imp) (*openrtb_e
 	}
 
 	var telariaExt openrtb_ext.ExtImpTelaria
-	err = json.Unmarshal(bidderExt.Bidder, &telariaExt)
+	err = jsonutil.Unmarshal(bidderExt.Bidder, &telariaExt)
 
 	if err != nil {
 		return nil, err
@@ -271,7 +272,7 @@ func (a *TelariaAdapter) MakeBids(internalRequest *openrtb2.BidRequest, external
 	responseBody := response.Body
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(responseBody, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(responseBody, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Telaria: Bad Server Response",
 		}}
diff --git a/adapters/telaria/telaria_test.go b/adapters/telaria/telaria_test.go
index 3c7d1bea46e..8c55e7b900c 100644
--- a/adapters/telaria/telaria_test.go
+++ b/adapters/telaria/telaria_test.go
@@ -3,9 +3,9 @@ package telaria
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/theadx/params_test.go b/adapters/theadx/params_test.go
index c9e10e2f0be..09440b335c6 100644
--- a/adapters/theadx/params_test.go
+++ b/adapters/theadx/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/theadx.json
diff --git a/adapters/theadx/theadx.go b/adapters/theadx/theadx.go
index 48af365f105..34b1e1a3b48 100644
--- a/adapters/theadx/theadx.go
+++ b/adapters/theadx/theadx.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -52,7 +53,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 
 	for _, imp := range request.Imp {
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errors = append(errors, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -60,7 +61,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 		}
 
 		var theadxImpExt openrtb_ext.ExtImpTheadx
-		if err := json.Unmarshal(bidderExt.Bidder, &theadxImpExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &theadxImpExt); err != nil {
 			errors = append(errors, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -110,7 +111,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -137,7 +138,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 	if bid.Ext != nil {
 		var bidExt openrtb_ext.ExtBid
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil && bidExt.Prebid != nil {
 			return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
 		}
diff --git a/adapters/theadx/theadx_test.go b/adapters/theadx/theadx_test.go
index e64126c6a10..a945bd15fee 100644
--- a/adapters/theadx/theadx_test.go
+++ b/adapters/theadx/theadx_test.go
@@ -3,9 +3,9 @@ package theadx
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/theadx/theadxtest/supplemental/unparsable-response.json b/adapters/theadx/theadxtest/supplemental/unparsable-response.json
index db9c246e15a..fa74cfdc989 100644
--- a/adapters/theadx/theadxtest/supplemental/unparsable-response.json
+++ b/adapters/theadx/theadxtest/supplemental/unparsable-response.json
@@ -43,7 +43,7 @@
   "expectedBidResponses": [],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal" 
     }
   ]
diff --git a/adapters/thetradedesk/params_test.go b/adapters/thetradedesk/params_test.go
index f18daed3d56..05febe45fab 100644
--- a/adapters/thetradedesk/params_test.go
+++ b/adapters/thetradedesk/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/thetradedesk/thetradedesk.go b/adapters/thetradedesk/thetradedesk.go
index 1ef48a70d4f..0288b4bb097 100644
--- a/adapters/thetradedesk/thetradedesk.go
+++ b/adapters/thetradedesk/thetradedesk.go
@@ -8,10 +8,11 @@ import (
 	"regexp"
 	"text/template"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 )
@@ -103,12 +104,12 @@ func getPublisherId(impressions []openrtb2.Imp) (string, error) {
 	for _, imp := range impressions {
 
 		var bidderExt ExtImpBidderTheTradeDesk
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			return "", err
 		}
 
 		var ttdExt openrtb_ext.ExtImpTheTradeDesk
-		if err := json.Unmarshal(bidderExt.Bidder, &ttdExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &ttdExt); err != nil {
 			return "", err
 		}
 
@@ -129,7 +130,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResponse openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResponse); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResponse); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/thetradedesk/thetradedesk_test.go b/adapters/thetradedesk/thetradedesk_test.go
index d53b2f860e4..658d812bcac 100644
--- a/adapters/thetradedesk/thetradedesk_test.go
+++ b/adapters/thetradedesk/thetradedesk_test.go
@@ -6,10 +6,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/thetradedesk/thetradedesktest/supplemental/200-response-from-target.json b/adapters/thetradedesk/thetradedesktest/supplemental/200-response-from-target.json
index 9769f0499c3..fdbe15ac48e 100644
--- a/adapters/thetradedesk/thetradedesktest/supplemental/200-response-from-target.json
+++ b/adapters/thetradedesk/thetradedesktest/supplemental/200-response-from-target.json
@@ -98,8 +98,8 @@
     ],
     "expectedMakeBidsErrors": [
       {
-        "value": "unexpected end of JSON input",
-        "comparison": "literal"
+        "value": "expect { or n, but found",
+        "comparison": "startswith"
       }
     ]
   }
diff --git a/adapters/thetradedesk/thetradedesktest/supplemental/invalid-publisher.json b/adapters/thetradedesk/thetradedesktest/supplemental/invalid-publisher.json
index 9e936f38f20..9e2426d79b2 100644
--- a/adapters/thetradedesk/thetradedesktest/supplemental/invalid-publisher.json
+++ b/adapters/thetradedesk/thetradedesktest/supplemental/invalid-publisher.json
@@ -37,7 +37,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal number into Go struct field ExtImpTheTradeDesk.publisherId of type string",
+      "value": "cannot unmarshal openrtb_ext.ExtImpTheTradeDesk.PublisherId: expects \" or n, but found 1",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/tpmn/params_test.go b/adapters/tpmn/params_test.go
index 4715d910855..674da5fb65a 100644
--- a/adapters/tpmn/params_test.go
+++ b/adapters/tpmn/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/tpmn/tpmn.go b/adapters/tpmn/tpmn.go
index 77357866a6a..262fc28ac6e 100644
--- a/adapters/tpmn/tpmn.go
+++ b/adapters/tpmn/tpmn.go
@@ -7,9 +7,10 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // TpmnAdapter struct
@@ -83,7 +84,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{fmt.Errorf("bid response unmarshal: %v", err)}
 	}
 
diff --git a/adapters/tpmn/tpmn_test.go b/adapters/tpmn/tpmn_test.go
index 7170dbb3d5f..865771e89ca 100644
--- a/adapters/tpmn/tpmn_test.go
+++ b/adapters/tpmn/tpmn_test.go
@@ -3,9 +3,9 @@ package tpmn
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/tpmn/tpmntest/supplemental/bad_response.json b/adapters/tpmn/tpmntest/supplemental/bad_response.json
index 21ebfb968c7..c8096e9df2a 100644
--- a/adapters/tpmn/tpmntest/supplemental/bad_response.json
+++ b/adapters/tpmn/tpmntest/supplemental/bad_response.json
@@ -81,7 +81,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "bid response unmarshal: json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "bid response unmarshal: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/tpmn/tpmntest/supplemental/no-imp-ext.json b/adapters/tpmn/tpmntest/supplemental/no-imp-ext.json
index a22f0a16d12..9bb91e4c167 100644
--- a/adapters/tpmn/tpmntest/supplemental/no-imp-ext.json
+++ b/adapters/tpmn/tpmntest/supplemental/no-imp-ext.json
@@ -74,7 +74,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "bid response unmarshal: json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "bid response unmarshal: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/trafficgate/params_test.go b/adapters/trafficgate/params_test.go
index adc11c08335..0667a8bc5a1 100644
--- a/adapters/trafficgate/params_test.go
+++ b/adapters/trafficgate/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // TestValidParams makes sure that the trafficgate schema accepts all imp.ext fields which we intend to support.
diff --git a/adapters/trafficgate/trafficgate.go b/adapters/trafficgate/trafficgate.go
index 24e8be20c6c..d4d181399dd 100644
--- a/adapters/trafficgate/trafficgate.go
+++ b/adapters/trafficgate/trafficgate.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -91,7 +92,7 @@ func (a *adapter) MakeBids(
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: err.Error(),
 		}}
@@ -103,7 +104,7 @@ func (a *adapter) MakeBids(
 	for _, seatBid := range bidResp.SeatBid {
 		for i := range seatBid.Bid {
 			var bidExt BidResponseExt
-			if err := json.Unmarshal(seatBid.Bid[i].Ext, &bidExt); err != nil {
+			if err := jsonutil.Unmarshal(seatBid.Bid[i].Ext, &bidExt); err != nil {
 				return nil, []error{&errortypes.BadServerResponse{
 					Message: "Missing response ext",
 				}}
@@ -141,13 +142,13 @@ func splitImpressions(imps []openrtb2.Imp) (map[openrtb_ext.ExtImpTrafficGate][]
 
 func getBidderParams(imp *openrtb2.Imp) (*openrtb_ext.ExtImpTrafficGate, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Missing bidder ext",
 		}
 	}
 	var TrafficGateExt openrtb_ext.ExtImpTrafficGate
-	if err := json.Unmarshal(bidderExt.Bidder, &TrafficGateExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &TrafficGateExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "Bidder parameters required",
 		}
diff --git a/adapters/trafficgate/trafficgate_test.go b/adapters/trafficgate/trafficgate_test.go
index 473c9d5d5c3..df932538d96 100644
--- a/adapters/trafficgate/trafficgate_test.go
+++ b/adapters/trafficgate/trafficgate_test.go
@@ -3,9 +3,9 @@ package trafficgate
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/trafficgate/trafficgatetest/supplemental/bad_response.json b/adapters/trafficgate/trafficgatetest/supplemental/bad_response.json
index e4177fd79ea..64cccbf6905 100644
--- a/adapters/trafficgate/trafficgatetest/supplemental/bad_response.json
+++ b/adapters/trafficgate/trafficgatetest/supplemental/bad_response.json
@@ -81,7 +81,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/triplelift/triplelift.go b/adapters/triplelift/triplelift.go
index 773048fc32e..c5d89cd2507 100644
--- a/adapters/triplelift/triplelift.go
+++ b/adapters/triplelift/triplelift.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type TripleliftAdapter struct {
@@ -36,10 +37,10 @@ func processImp(imp *openrtb2.Imp) error {
 	// get the triplelift extension
 	var ext adapters.ExtImpBidder
 	var tlext openrtb_ext.ExtImpTriplelift
-	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
 		return err
 	}
-	if err := json.Unmarshal(ext.Bidder, &tlext); err != nil {
+	if err := jsonutil.Unmarshal(ext.Bidder, &tlext); err != nil {
 		return err
 	}
 	if imp.Banner == nil && imp.Video == nil {
@@ -118,7 +119,7 @@ func (a *TripleliftAdapter) MakeBids(internalRequest *openrtb2.BidRequest, exter
 		return nil, []error{fmt.Errorf("Unexpected status code: %d. Run with request.debug = 1 for more info", response.StatusCode)}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 	var errs []error
@@ -129,7 +130,7 @@ func (a *TripleliftAdapter) MakeBids(internalRequest *openrtb2.BidRequest, exter
 		for i := 0; i < len(sb.Bid); i++ {
 			bid := sb.Bid[i]
 			var bidExt TripleliftRespExt
-			if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+			if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 				errs = append(errs, err)
 			} else {
 				bidType := getBidType(bidExt)
diff --git a/adapters/triplelift/triplelift_test.go b/adapters/triplelift/triplelift_test.go
index c4468a93faa..1fd5fc8d559 100644
--- a/adapters/triplelift/triplelift_test.go
+++ b/adapters/triplelift/triplelift_test.go
@@ -3,9 +3,9 @@ package triplelift
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/triplelift/triplelifttest/supplemental/badext.json b/adapters/triplelift/triplelifttest/supplemental/badext.json
index a36454c86d8..7c4b8190faf 100644
--- a/adapters/triplelift/triplelifttest/supplemental/badext.json
+++ b/adapters/triplelift/triplelifttest/supplemental/badext.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     },
     {
diff --git a/adapters/triplelift/triplelifttest/supplemental/badextbidder.json b/adapters/triplelift/triplelifttest/supplemental/badextbidder.json
index 744de84d45d..c5b0c1fcbed 100644
--- a/adapters/triplelift/triplelifttest/supplemental/badextbidder.json
+++ b/adapters/triplelift/triplelifttest/supplemental/badextbidder.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb_ext.ExtImpTriplelift",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     },
     {
diff --git a/adapters/triplelift/triplelifttest/supplemental/badresponseext.json b/adapters/triplelift/triplelifttest/supplemental/badresponseext.json
index 881ead4da6f..3c217f64f4e 100644
--- a/adapters/triplelift/triplelifttest/supplemental/badresponseext.json
+++ b/adapters/triplelift/triplelifttest/supplemental/badresponseext.json
@@ -97,7 +97,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type triplelift.TripleliftRespExt",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/triplelift_native/params_test.go b/adapters/triplelift_native/params_test.go
index 163ca856e00..743c3d87ed2 100644
--- a/adapters/triplelift_native/params_test.go
+++ b/adapters/triplelift_native/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/triplelift_native/triplelift_native.go b/adapters/triplelift_native/triplelift_native.go
index 57d5f2d7c2f..1d4c6bf638d 100644
--- a/adapters/triplelift_native/triplelift_native.go
+++ b/adapters/triplelift_native/triplelift_native.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type TripleliftNativeAdapter struct {
@@ -51,10 +52,10 @@ func processImp(imp *openrtb2.Imp, request *openrtb2.BidRequest) error {
 	var ext ExtImp
 	var tlext openrtb_ext.ExtImpTriplelift
 
-	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
 		return err
 	}
-	if err := json.Unmarshal(ext.Bidder, &tlext); err != nil {
+	if err := jsonutil.Unmarshal(ext.Bidder, &tlext); err != nil {
 		return err
 	}
 	if imp.Native == nil {
@@ -91,7 +92,7 @@ func effectivePubID(pub *openrtb2.Publisher) string {
 	if pub != nil {
 		if pub.Ext != nil {
 			var pubExt openrtb_ext.ExtPublisher
-			err := json.Unmarshal(pub.Ext, &pubExt)
+			err := jsonutil.Unmarshal(pub.Ext, &pubExt)
 			if err == nil && pubExt.Prebid != nil && pubExt.Prebid.ParentAccount != nil && *pubExt.Prebid.ParentAccount != "" {
 				return *pubExt.Prebid.ParentAccount
 			}
@@ -178,7 +179,7 @@ func (a *TripleliftNativeAdapter) MakeBids(internalRequest *openrtb2.BidRequest,
 		return nil, []error{&errortypes.BadServerResponse{Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info", response.StatusCode)}}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 	var errs []error
@@ -225,7 +226,7 @@ func getExtraInfo(v string) (TripleliftNativeExtInfo, error) {
 	}
 
 	var extraInfo TripleliftNativeExtInfo
-	if err := json.Unmarshal([]byte(v), &extraInfo); err != nil {
+	if err := jsonutil.Unmarshal([]byte(v), &extraInfo); err != nil {
 		return extraInfo, fmt.Errorf("invalid extra info: %v", err)
 	}
 
diff --git a/adapters/triplelift_native/triplelift_native_test.go b/adapters/triplelift_native/triplelift_native_test.go
index c1c82501b32..651890b01e0 100644
--- a/adapters/triplelift_native/triplelift_native_test.go
+++ b/adapters/triplelift_native/triplelift_native_test.go
@@ -3,9 +3,9 @@ package triplelift_native
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/triplelift_native/triplelift_nativetest/supplemental/badext.json b/adapters/triplelift_native/triplelift_nativetest/supplemental/badext.json
index f43deb8b7c5..eb2d6a1e19d 100644
--- a/adapters/triplelift_native/triplelift_nativetest/supplemental/badext.json
+++ b/adapters/triplelift_native/triplelift_nativetest/supplemental/badext.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type triplelift_native.ExtImp",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     },
     {
diff --git a/adapters/triplelift_native/triplelift_nativetest/supplemental/badextbidder.json b/adapters/triplelift_native/triplelift_nativetest/supplemental/badextbidder.json
index 59ebe048b19..deb9dfce308 100644
--- a/adapters/triplelift_native/triplelift_nativetest/supplemental/badextbidder.json
+++ b/adapters/triplelift_native/triplelift_nativetest/supplemental/badextbidder.json
@@ -1,7 +1,7 @@
 {
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb_ext.ExtImpTriplelift",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     },
     {
diff --git a/adapters/trustedstack/params_test.go b/adapters/trustedstack/params_test.go
index 55812126cae..a38e0bb7227 100644
--- a/adapters/trustedstack/params_test.go
+++ b/adapters/trustedstack/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/trustedstack.json
diff --git a/adapters/trustedstack/trustedstack.go b/adapters/trustedstack/trustedstack.go
index f79f43ffe35..7c2fd4df50a 100644
--- a/adapters/trustedstack/trustedstack.go
+++ b/adapters/trustedstack/trustedstack.go
@@ -7,9 +7,10 @@ import (
 	"net/url"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -48,7 +49,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/trustedstack/trustedstack_test.go b/adapters/trustedstack/trustedstack_test.go
index c2e1742c55c..d12202802e0 100644
--- a/adapters/trustedstack/trustedstack_test.go
+++ b/adapters/trustedstack/trustedstack_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/trustedstack/trustedstacktest/supplemental/valid-req-200-incorrect-response-format.json b/adapters/trustedstack/trustedstacktest/supplemental/valid-req-200-incorrect-response-format.json
index c2cf9a06110..2852d8a2443 100644
--- a/adapters/trustedstack/trustedstacktest/supplemental/valid-req-200-incorrect-response-format.json
+++ b/adapters/trustedstack/trustedstacktest/supplemental/valid-req-200-incorrect-response-format.json
@@ -114,7 +114,7 @@
   "expectedBidResponses": [],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go struct field Bid.seatbid.bid.price of type float64",
+      "value": "cannot unmarshal openrtb2.Bid.Price: invalid number",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/ucfunnel/params_test.go b/adapters/ucfunnel/params_test.go
index 9bba397a084..47954e8aadb 100644
--- a/adapters/ucfunnel/params_test.go
+++ b/adapters/ucfunnel/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/ucfunnel.json
diff --git a/adapters/ucfunnel/ucfunnel.go b/adapters/ucfunnel/ucfunnel.go
index f74e79bddcf..efee7736d42 100644
--- a/adapters/ucfunnel/ucfunnel.go
+++ b/adapters/ucfunnel/ucfunnel.go
@@ -7,10 +7,11 @@ import (
 	"net/url"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type UcfunnelAdapter struct {
@@ -44,12 +45,12 @@ func (a *UcfunnelAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externa
 
 	var errs []error
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
 	var bidReq openrtb2.BidRequest
-	if err := json.Unmarshal(externalRequest.Body, &bidReq); err != nil {
+	if err := jsonutil.Unmarshal(externalRequest.Body, &bidReq); err != nil {
 		return nil, []error{err}
 	}
 
@@ -105,7 +106,7 @@ func (a *UcfunnelAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *ad
 func getPartnerId(request *openrtb2.BidRequest) (string, []error) {
 	var ext ExtBidderUcfunnel
 	var errs = []error{}
-	err := json.Unmarshal(request.Imp[0].Ext, &ext)
+	err := jsonutil.Unmarshal(request.Imp[0].Ext, &ext)
 	if err != nil {
 		errs = append(errs, err)
 		return "", errs
diff --git a/adapters/ucfunnel/ucfunnel_test.go b/adapters/ucfunnel/ucfunnel_test.go
index 6e93c5e10ef..ec1b777c79b 100644
--- a/adapters/ucfunnel/ucfunnel_test.go
+++ b/adapters/ucfunnel/ucfunnel_test.go
@@ -6,9 +6,9 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/undertone/params_test.go b/adapters/undertone/params_test.go
index 3144f757078..dad74a08e8c 100644
--- a/adapters/undertone/params_test.go
+++ b/adapters/undertone/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/undertone/undertone.go b/adapters/undertone/undertone.go
index f3b48e33eab..91b2527c6d3 100644
--- a/adapters/undertone/undertone.go
+++ b/adapters/undertone/undertone.go
@@ -8,10 +8,11 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const adapterId = 4
@@ -88,7 +89,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -165,7 +166,7 @@ func getImpsAndPublisherId(bidRequest *openrtb2.BidRequest) ([]openrtb2.Imp, int
 
 	for _, imp := range bidRequest.Imp {
 		var ext impExt
-		if err := json.Unmarshal(imp.Ext, &ext); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
 			errs = append(errs, getInvalidImpErr(imp.ID, err))
 			continue
 		}
diff --git a/adapters/undertone/undertone_test.go b/adapters/undertone/undertone_test.go
index c08460e8627..45281a1d150 100644
--- a/adapters/undertone/undertone_test.go
+++ b/adapters/undertone/undertone_test.go
@@ -3,9 +3,9 @@ package undertone
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/unicorn/params_test.go b/adapters/unicorn/params_test.go
index fd76995d1c0..89768ea8245 100644
--- a/adapters/unicorn/params_test.go
+++ b/adapters/unicorn/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/unicorn/unicorn.go b/adapters/unicorn/unicorn.go
index 21864d3d492..a957cff9a1c 100644
--- a/adapters/unicorn/unicorn.go
+++ b/adapters/unicorn/unicorn.go
@@ -8,10 +8,11 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -51,7 +52,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 				Message: "COPPA is not supported",
 			}}
 		}
-		if err := json.Unmarshal(request.Regs.Ext, &extRegs); err == nil {
+		if err := jsonutil.Unmarshal(request.Regs.Ext, &extRegs); err == nil {
 			if extRegs.GDPR != nil && (*extRegs.GDPR == 1) {
 				return nil, []error{&errortypes.BadInput{
 					Message: "GDPR is not supported",
@@ -132,7 +133,7 @@ func modifyImps(request *openrtb2.BidRequest) error {
 		imp := &request.Imp[i]
 
 		var ext unicornImpExt
-		err := json.Unmarshal(imp.Ext, &ext)
+		err := jsonutil.Unmarshal(imp.Ext, &ext)
 
 		if err != nil {
 			return &errortypes.BadInput{
@@ -214,7 +215,7 @@ func setExt(request *openrtb2.BidRequest) (json.RawMessage, error) {
 	}
 
 	var decodedExt *unicornExt
-	err = json.Unmarshal(request.Ext, &decodedExt)
+	err = jsonutil.Unmarshal(request.Ext, &decodedExt)
 	if err != nil {
 		decodedExt = &unicornExt{
 			Prebid: nil,
@@ -253,7 +254,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/unicorn/unicorn_test.go b/adapters/unicorn/unicorn_test.go
index 6c1e5aa73f2..a83951277fa 100644
--- a/adapters/unicorn/unicorn_test.go
+++ b/adapters/unicorn/unicorn_test.go
@@ -3,9 +3,9 @@ package unicorn
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/unicorn/unicorntest/supplemental/cannot-parse-accountid.json b/adapters/unicorn/unicorntest/supplemental/cannot-parse-accountid.json
index 9ece314b485..93f038e2a0e 100644
--- a/adapters/unicorn/unicorntest/supplemental/cannot-parse-accountid.json
+++ b/adapters/unicorn/unicorntest/supplemental/cannot-parse-accountid.json
@@ -68,8 +68,8 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "Error while decoding imp[0].ext: json: cannot unmarshal string into Go struct field ExtImpUnicorn.bidder.accountId of type int",
-      "comparison": "literal"
+      "value": "Error while decoding imp[0].ext: cannot unmarshal openrtb_ext.ExtImpUnicorn.AccountID: unexpected character",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/unicorn/unicorntest/supplemental/no-imp-ext.json b/adapters/unicorn/unicorntest/supplemental/no-imp-ext.json
index bab6e8d9603..4acfc734f97 100644
--- a/adapters/unicorn/unicorntest/supplemental/no-imp-ext.json
+++ b/adapters/unicorn/unicorntest/supplemental/no-imp-ext.json
@@ -55,8 +55,8 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "Error while decoding imp[0].ext: unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "Error while decoding imp[0].ext: expect { or n, but found",
+      "comparison": "startswith"
     }
   ]
 }
diff --git a/adapters/unruly/params_test.go b/adapters/unruly/params_test.go
index f8feea872c8..132afee8e1f 100644
--- a/adapters/unruly/params_test.go
+++ b/adapters/unruly/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/unruly/unruly.go b/adapters/unruly/unruly.go
index 97fc2b64a94..c8e73de99bf 100644
--- a/adapters/unruly/unruly.go
+++ b/adapters/unruly/unruly.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -55,7 +56,7 @@ func (a *adapter) preProcess(req *openrtb2.BidRequest, errors []error) (*openrtb
 	for i := 0; i < numRequests; i++ {
 		imp := req.Imp[i]
 		var bidderExt adapters.ExtImpBidder
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			err = &errortypes.BadInput{
 				Message: fmt.Sprintf("ext data not provided in imp id=%s. Abort all Request", imp.ID),
 			}
@@ -63,7 +64,7 @@ func (a *adapter) preProcess(req *openrtb2.BidRequest, errors []error) (*openrtb
 			return nil, errors
 		}
 		var unrulyExt openrtb_ext.ExtImpUnruly
-		if err := json.Unmarshal(bidderExt.Bidder, &unrulyExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &unrulyExt); err != nil {
 			err = &errortypes.BadInput{
 				Message: fmt.Sprintf("siteid not provided in imp id=%s. Abort all Request", imp.ID),
 			}
@@ -107,7 +108,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 		}}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("bad server response: %d. ", err),
 		}}
diff --git a/adapters/unruly/unruly_test.go b/adapters/unruly/unruly_test.go
index 8407ba15212..e3df3d88818 100644
--- a/adapters/unruly/unruly_test.go
+++ b/adapters/unruly/unruly_test.go
@@ -3,9 +3,9 @@ package unruly
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/vidazoo/params_test.go b/adapters/vidazoo/params_test.go
index 5c80469c73d..cfd3e9b5d40 100644
--- a/adapters/vidazoo/params_test.go
+++ b/adapters/vidazoo/params_test.go
@@ -2,8 +2,9 @@ package vidazoo
 
 import (
 	"encoding/json"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
 	"testing"
+
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/vidazoo/vidazoo.go b/adapters/vidazoo/vidazoo.go
index e2fc9959486..be0cf66d9d4 100644
--- a/adapters/vidazoo/vidazoo.go
+++ b/adapters/vidazoo/vidazoo.go
@@ -8,10 +8,11 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -90,7 +91,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("bad server response: %d. ", err),
 		}}
@@ -121,12 +122,12 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 
 func extractCid(imp *openrtb2.Imp) (string, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return "", fmt.Errorf("unmarshal bidderExt: %w", err)
 	}
 
 	var impExt openrtb_ext.ImpExtVidazoo
-	if err := json.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &impExt); err != nil {
 		return "", fmt.Errorf("unmarshal ImpExtVidazoo: %w", err)
 	}
 	return strings.TrimSpace(impExt.ConnectionId), nil
diff --git a/adapters/vidazoo/vidazoo_test.go b/adapters/vidazoo/vidazoo_test.go
index 892aae77ed6..5d6090de95c 100644
--- a/adapters/vidazoo/vidazoo_test.go
+++ b/adapters/vidazoo/vidazoo_test.go
@@ -3,9 +3,9 @@ package vidazoo
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/videobyte/params_test.go b/adapters/videobyte/params_test.go
index dbc815fd76d..ffb37f88d97 100644
--- a/adapters/videobyte/params_test.go
+++ b/adapters/videobyte/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/videobyte.json
diff --git a/adapters/videobyte/videobyte.go b/adapters/videobyte/videobyte.go
index d9e2d4e4be2..ed79c6525bd 100644
--- a/adapters/videobyte/videobyte.go
+++ b/adapters/videobyte/videobyte.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 	"net/url"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 )
@@ -75,7 +76,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var ortbResponse openrtb2.BidResponse
-	err := json.Unmarshal(response.Body, &ortbResponse)
+	err := jsonutil.Unmarshal(response.Body, &ortbResponse)
 	if err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
@@ -141,14 +142,14 @@ func getHeaders(request *openrtb2.BidRequest) http.Header {
 func parseExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpVideoByte, error) {
 	var bidderExt adapters.ExtImpBidder
 
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Ignoring imp id=%s, error while decoding extImpBidder, err: %s", imp.ID, err),
 		}
 	}
 
 	impExt := openrtb_ext.ExtImpVideoByte{}
-	err := json.Unmarshal(bidderExt.Bidder, &impExt)
+	err := jsonutil.Unmarshal(bidderExt.Bidder, &impExt)
 	if err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Ignoring imp id=%s, error while decoding impExt, err: %s", imp.ID, err),
diff --git a/adapters/videobyte/videobyte_test.go b/adapters/videobyte/videobyte_test.go
index 9e566a20ef2..2d1d2a07fda 100644
--- a/adapters/videobyte/videobyte_test.go
+++ b/adapters/videobyte/videobyte_test.go
@@ -3,9 +3,9 @@ package videobyte
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/videobyte/videobytetest/supplemental/invalid-imp-ext-bidder.json b/adapters/videobyte/videobytetest/supplemental/invalid-imp-ext-bidder.json
index 1b806ed57ab..d7d8460bb1b 100644
--- a/adapters/videobyte/videobytetest/supplemental/invalid-imp-ext-bidder.json
+++ b/adapters/videobyte/videobytetest/supplemental/invalid-imp-ext-bidder.json
@@ -38,7 +38,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "Ignoring imp id=test-imp-id, error while decoding impExt, err: json: cannot unmarshal string into Go value of type openrtb_ext.ExtImpVideoByte",
+      "value": "Ignoring imp id=test-imp-id, error while decoding impExt, err: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/videobyte/videobytetest/supplemental/invalid-imp-ext.json b/adapters/videobyte/videobytetest/supplemental/invalid-imp-ext.json
index 199f4c5570c..a24ea9b924f 100644
--- a/adapters/videobyte/videobytetest/supplemental/invalid-imp-ext.json
+++ b/adapters/videobyte/videobytetest/supplemental/invalid-imp-ext.json
@@ -36,7 +36,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "Ignoring imp id=test-imp-id, error while decoding extImpBidder, err: json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "Ignoring imp id=test-imp-id, error while decoding extImpBidder, err: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/videoheroes/params_test.go b/adapters/videoheroes/params_test.go
index 66e1e6a2788..e8af1f1fcf5 100644
--- a/adapters/videoheroes/params_test.go
+++ b/adapters/videoheroes/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/videoheroes/videoheroes.go b/adapters/videoheroes/videoheroes.go
index 89bbb9c8162..8d1d7450cb3 100755
--- a/adapters/videoheroes/videoheroes.go
+++ b/adapters/videoheroes/videoheroes.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -67,13 +68,13 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 
 func (a *adapter) getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtImpVideoHeroes, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
 	}
 	var videoHeroesExt openrtb_ext.ExtImpVideoHeroes
-	if err := json.Unmarshal(bidderExt.Bidder, &videoHeroesExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &videoHeroesExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: "ext.bidder not provided",
 		}
@@ -118,7 +119,7 @@ func (a *adapter) MakeBids(
 	}
 
 	var bidResponse openrtb2.BidResponse
-	if err := json.Unmarshal(bidderResponse.Body, &bidResponse); err != nil {
+	if err := jsonutil.Unmarshal(bidderResponse.Body, &bidResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: "Bad Server Response",
 		}}
diff --git a/adapters/videoheroes/videoheroes_test.go b/adapters/videoheroes/videoheroes_test.go
index 7c0b2268f51..3545b601dc6 100644
--- a/adapters/videoheroes/videoheroes_test.go
+++ b/adapters/videoheroes/videoheroes_test.go
@@ -3,9 +3,9 @@ package videoheroes
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/vidoomy/params_test.go b/adapters/vidoomy/params_test.go
index 40c17029f9e..b3801c637c8 100644
--- a/adapters/vidoomy/params_test.go
+++ b/adapters/vidoomy/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/vidoomy.json
diff --git a/adapters/vidoomy/vidoomy.go b/adapters/vidoomy/vidoomy.go
index d5538019a3e..b39448a4143 100644
--- a/adapters/vidoomy/vidoomy.go
+++ b/adapters/vidoomy/vidoomy.go
@@ -7,11 +7,12 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 type adapter struct {
@@ -117,7 +118,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Bad server response: %d.", err),
 		}}
diff --git a/adapters/vidoomy/vidoomy_test.go b/adapters/vidoomy/vidoomy_test.go
index 7acc477ae1c..ef561b596b6 100644
--- a/adapters/vidoomy/vidoomy_test.go
+++ b/adapters/vidoomy/vidoomy_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestVidoomyBidderEndpointConfig(t *testing.T) {
diff --git a/adapters/visiblemeasures/params_test.go b/adapters/visiblemeasures/params_test.go
index ed74ef1ad35..b4e5bb66c1d 100644
--- a/adapters/visiblemeasures/params_test.go
+++ b/adapters/visiblemeasures/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/visiblemeasures/visiblemeasures.go b/adapters/visiblemeasures/visiblemeasures.go
index 4a461d2d8f7..100ba03e59b 100644
--- a/adapters/visiblemeasures/visiblemeasures.go
+++ b/adapters/visiblemeasures/visiblemeasures.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -44,10 +45,10 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		var bidderExt adapters.ExtImpBidder
 		var visiblemeasuresExt openrtb_ext.ImpExtVisibleMeasures
 
-		if err = json.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
+		if err = jsonutil.Unmarshal(reqCopy.Imp[0].Ext, &bidderExt); err != nil {
 			return nil, []error{err}
 		}
-		if err = json.Unmarshal(bidderExt.Bidder, &visiblemeasuresExt); err != nil {
+		if err = jsonutil.Unmarshal(bidderExt.Bidder, &visiblemeasuresExt); err != nil {
 			return nil, []error{err}
 		}
 
@@ -111,7 +112,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/visiblemeasures/visiblemeasures_test.go b/adapters/visiblemeasures/visiblemeasures_test.go
index 8970ccb1e43..82038938358 100644
--- a/adapters/visiblemeasures/visiblemeasures_test.go
+++ b/adapters/visiblemeasures/visiblemeasures_test.go
@@ -3,9 +3,9 @@ package visiblemeasures
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/visiblemeasures/visiblemeasurestest/supplemental/bad_response.json b/adapters/visiblemeasures/visiblemeasurestest/supplemental/bad_response.json
index c732ba92c67..5cc4a338ac3 100644
--- a/adapters/visiblemeasures/visiblemeasurestest/supplemental/bad_response.json
+++ b/adapters/visiblemeasures/visiblemeasurestest/supplemental/bad_response.json
@@ -78,7 +78,7 @@
     }],
     "expectedMakeBidsErrors": [
         {
-          "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+          "value": "expect { or n, but found \"",
           "comparison": "literal"
         }
     ]
diff --git a/adapters/visx/params_test.go b/adapters/visx/params_test.go
index 0646d221e27..1355d6f8d93 100644
--- a/adapters/visx/params_test.go
+++ b/adapters/visx/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/visx/visx.go b/adapters/visx/visx.go
index 2cd3dfc5370..85f3c300a2d 100644
--- a/adapters/visx/visx.go
+++ b/adapters/visx/visx.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type VisxAdapter struct {
@@ -107,7 +108,7 @@ func (a *VisxAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalReq
 	}
 
 	var bidResp visxResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -146,7 +147,7 @@ func getMediaTypeForImp(impID string, imps []openrtb2.Imp, bid visxBid) (openrtb
 	for _, imp := range imps {
 		if imp.ID == impID {
 			var ext visxBidExt
-			if err := json.Unmarshal(bid.Ext, &ext); err == nil {
+			if err := jsonutil.Unmarshal(bid.Ext, &ext); err == nil {
 				if ext.Prebid.Meta.MediaType == openrtb_ext.BidTypeBanner {
 					return openrtb_ext.BidTypeBanner, nil
 				}
diff --git a/adapters/visx/visx_test.go b/adapters/visx/visx_test.go
index 8cdccc2e653..d2adffddcea 100644
--- a/adapters/visx/visx_test.go
+++ b/adapters/visx/visx_test.go
@@ -3,9 +3,9 @@ package visx
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/visx/visxtest/supplemental/bad_response.json b/adapters/visx/visxtest/supplemental/bad_response.json
index e905068b7ea..21da96d8783 100644
--- a/adapters/visx/visxtest/supplemental/bad_response.json
+++ b/adapters/visx/visxtest/supplemental/bad_response.json
@@ -56,7 +56,7 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type visx.visxResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/vox/params_test.go b/adapters/vox/params_test.go
index e23a57d9b30..536503555e8 100644
--- a/adapters/vox/params_test.go
+++ b/adapters/vox/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/vox/vox.go b/adapters/vox/vox.go
index 1a04d1fbf72..3e5f03aa6ee 100644
--- a/adapters/vox/vox.go
+++ b/adapters/vox/vox.go
@@ -5,9 +5,10 @@ import (
 	"fmt"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -47,7 +48,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/vox/vox_test.go b/adapters/vox/vox_test.go
index dfb345b2e02..dce89de3afb 100644
--- a/adapters/vox/vox_test.go
+++ b/adapters/vox/vox_test.go
@@ -3,9 +3,9 @@ package vox
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/vrtcal/params_test.go b/adapters/vrtcal/params_test.go
index 0e30dd6fcc9..8ba180db2b8 100644
--- a/adapters/vrtcal/params_test.go
+++ b/adapters/vrtcal/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 //Vrtcal doesn't currently require any custom fields. This file is included for conformity only
diff --git a/adapters/vrtcal/vrtcal.go b/adapters/vrtcal/vrtcal.go
index 0f6f27eb23b..e0df0bca954 100644
--- a/adapters/vrtcal/vrtcal.go
+++ b/adapters/vrtcal/vrtcal.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type VrtcalAdapter struct {
@@ -63,7 +64,7 @@ func (a *VrtcalAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalR
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/vrtcal/vrtcal_test.go b/adapters/vrtcal/vrtcal_test.go
index a4ba917922f..59d29aaee31 100644
--- a/adapters/vrtcal/vrtcal_test.go
+++ b/adapters/vrtcal/vrtcal_test.go
@@ -3,9 +3,9 @@ package vrtcal
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/vungle/param_test.go b/adapters/vungle/param_test.go
index ff73b5ef960..7053669edf4 100644
--- a/adapters/vungle/param_test.go
+++ b/adapters/vungle/param_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/vungle/vungle.go b/adapters/vungle/vungle.go
index 9d479b81e31..6e6967fc227 100644
--- a/adapters/vungle/vungle.go
+++ b/adapters/vungle/vungle.go
@@ -8,9 +8,10 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const SupportedCurrency = "USD"
@@ -52,14 +53,14 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapte
 		}
 
 		var impExt vungleImpressionExt
-		if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 			errs = append(errs, fmt.Errorf("failed unmarshalling imp ext (err)%s", err.Error()))
 			continue
 		}
 
 		// get placement_reference_id & pub_app_store_id
 		var bidderImpExt openrtb_ext.ImpExtVungle
-		if err := json.Unmarshal(impExt.Bidder, &bidderImpExt); err != nil {
+		if err := jsonutil.Unmarshal(impExt.Bidder, &bidderImpExt); err != nil {
 			errs = append(errs, fmt.Errorf("failed unmarshalling bidder imp ext (err)%s", err.Error()))
 			continue
 		}
@@ -127,7 +128,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
diff --git a/adapters/vungle/vungle_test.go b/adapters/vungle/vungle_test.go
index 6200924eea3..740208dbe0c 100644
--- a/adapters/vungle/vungle_test.go
+++ b/adapters/vungle/vungle_test.go
@@ -3,9 +3,9 @@ package vungle
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/xeworks/params_test.go b/adapters/xeworks/params_test.go
index 1c14b3a0989..0ce8d99f48f 100644
--- a/adapters/xeworks/params_test.go
+++ b/adapters/xeworks/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validParams = []string{
diff --git a/adapters/xeworks/xeworks.go b/adapters/xeworks/xeworks.go
index 458087ece23..bd9d1795283 100644
--- a/adapters/xeworks/xeworks.go
+++ b/adapters/xeworks/xeworks.go
@@ -7,11 +7,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type bidType struct {
@@ -41,14 +42,14 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 
 func (a *adapter) buildEndpointFromRequest(imp *openrtb2.Imp) (string, error) {
 	var impExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &impExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize bidder impression extension: %v", err),
 		}
 	}
 
 	var xeworksExt openrtb_ext.ExtXeworks
-	if err := json.Unmarshal(impExt.Bidder, &xeworksExt); err != nil {
+	if err := jsonutil.Unmarshal(impExt.Bidder, &xeworksExt); err != nil {
 		return "", &errortypes.BadInput{
 			Message: fmt.Sprintf("Failed to deserialize Xeworks extension: %v", err),
 		}
@@ -116,7 +117,7 @@ func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -136,7 +137,7 @@ func prepareBidResponse(seats []openrtb2.SeatBid) (*adapters.BidderResponse, []e
 	for _, seatBid := range seats {
 		for bidId, bid := range seatBid.Bid {
 			var bidExt bidExt
-			if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+			if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 				errs = append(errs, &errortypes.BadServerResponse{
 					Message: fmt.Sprintf("Failed to parse Bid[%d].Ext: %s", bidId, err.Error()),
 				})
diff --git a/adapters/xeworks/xeworks_test.go b/adapters/xeworks/xeworks_test.go
index db7e26c9bae..842045af1d9 100644
--- a/adapters/xeworks/xeworks_test.go
+++ b/adapters/xeworks/xeworks_test.go
@@ -3,9 +3,9 @@ package xeworks
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/xeworks/xeworkstest/supplemental/bad-response.json b/adapters/xeworks/xeworkstest/supplemental/bad-response.json
index e91040e9799..ecfa343be36 100644
--- a/adapters/xeworks/xeworkstest/supplemental/bad-response.json
+++ b/adapters/xeworks/xeworkstest/supplemental/bad-response.json
@@ -99,7 +99,7 @@
   ],
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ],
diff --git a/adapters/xeworks/xeworkstest/supplemental/invalid-ext-bidder-object.json b/adapters/xeworks/xeworkstest/supplemental/invalid-ext-bidder-object.json
index fe7fd9c8b19..77347bfd3d7 100644
--- a/adapters/xeworks/xeworkstest/supplemental/invalid-ext-bidder-object.json
+++ b/adapters/xeworks/xeworkstest/supplemental/invalid-ext-bidder-object.json
@@ -42,7 +42,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize Xeworks extension: json: cannot unmarshal array into Go value of type openrtb_ext.ExtXeworks",
+      "value": "Failed to deserialize Xeworks extension: expect { or n, but found [",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/xeworks/xeworkstest/supplemental/invalid-ext-object.json b/adapters/xeworks/xeworkstest/supplemental/invalid-ext-object.json
index aa215eb3e34..16cf58bbe54 100644
--- a/adapters/xeworks/xeworkstest/supplemental/invalid-ext-object.json
+++ b/adapters/xeworks/xeworkstest/supplemental/invalid-ext-object.json
@@ -40,7 +40,7 @@
   "httpCalls": [],
   "expectedMakeRequestsErrors": [
     {
-      "value": "Failed to deserialize bidder impression extension: json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "Failed to deserialize bidder impression extension: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/yahooAds/params_test.go b/adapters/yahooAds/params_test.go
index dbbc2c84adb..42a5c16ae75 100644
--- a/adapters/yahooAds/params_test.go
+++ b/adapters/yahooAds/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/yahooAds.json
diff --git a/adapters/yahooAds/yahooAds.go b/adapters/yahooAds/yahooAds.go
index dddeddcce21..4a03bc3e7fc 100644
--- a/adapters/yahooAds/yahooAds.go
+++ b/adapters/yahooAds/yahooAds.go
@@ -6,11 +6,12 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 type adapter struct {
@@ -33,7 +34,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 
 	for idx, imp := range request.Imp {
 		var bidderExt adapters.ExtImpBidder
-		err := json.Unmarshal(imp.Ext, &bidderExt)
+		err := jsonutil.Unmarshal(imp.Ext, &bidderExt)
 		if err != nil {
 			err = &errortypes.BadInput{
 				Message: fmt.Sprintf("imp #%d: ext.bidder not provided", idx),
@@ -43,7 +44,7 @@ func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.E
 		}
 
 		var yahooAdsExt openrtb_ext.ExtImpYahooAds
-		err = json.Unmarshal(bidderExt.Bidder, &yahooAdsExt)
+		err = jsonutil.Unmarshal(bidderExt.Bidder, &yahooAdsExt)
 		if err != nil {
 			err = &errortypes.BadInput{
 				Message: fmt.Sprintf("imp #%d: %s", idx, err.Error()),
@@ -101,7 +102,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Bad server response: %d.", err),
 		}}
@@ -177,7 +178,7 @@ func changeRequestForBidService(request *openrtb2.BidRequest, extension *openrtb
 			requestRegs.Ext = json.RawMessage("{}")
 		}
 		var regsExt map[string]json.RawMessage
-		err := json.Unmarshal(requestRegs.Ext, &regsExt)
+		err := jsonutil.Unmarshal(requestRegs.Ext, &regsExt)
 		if err != nil {
 			return err
 		}
diff --git a/adapters/yahooAds/yahooAds_test.go b/adapters/yahooAds/yahooAds_test.go
index ae9103d141e..0eaf711faf3 100644
--- a/adapters/yahooAds/yahooAds_test.go
+++ b/adapters/yahooAds/yahooAds_test.go
@@ -5,9 +5,9 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestYahooAdsBidderEndpointConfig(t *testing.T) {
diff --git a/adapters/yandex/params_test.go b/adapters/yandex/params_test.go
index e65c82ff159..0805be19889 100644
--- a/adapters/yandex/params_test.go
+++ b/adapters/yandex/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/yandex/yandex.go b/adapters/yandex/yandex.go
index 7d40dc85a7a..5a017c2bd65 100644
--- a/adapters/yandex/yandex.go
+++ b/adapters/yandex/yandex.go
@@ -10,11 +10,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
@@ -131,14 +132,14 @@ func splitRequestDataByImp(request *openrtb2.BidRequest, imp openrtb2.Imp) openr
 
 func getYandexPlacementId(imp openrtb2.Imp) (*yandexPlacementID, error) {
 	var ext adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("imp %s: unable to unmarshal ext", imp.ID),
 		}
 	}
 
 	var yandexExt openrtb_ext.ExtImpYandex
-	if err := json.Unmarshal(ext.Bidder, &yandexExt); err != nil {
+	if err := jsonutil.Unmarshal(ext.Bidder, &yandexExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("imp %s: unable to unmarshal ext.bidder: %v", imp.ID, err),
 		}
@@ -280,7 +281,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, _ *adapters.RequestData
 	}
 
 	var bidResponse openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &bidResponse); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &bidResponse); err != nil {
 		return nil, []error{&errortypes.BadServerResponse{
 			Message: fmt.Sprintf("Bad server response: %d", err),
 		}}
diff --git a/adapters/yandex/yandex_test.go b/adapters/yandex/yandex_test.go
index 6978cd8bb54..7635b1a1b93 100644
--- a/adapters/yandex/yandex_test.go
+++ b/adapters/yandex/yandex_test.go
@@ -3,9 +3,9 @@ package yandex
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/yeahmobi/params_test.go b/adapters/yeahmobi/params_test.go
index 805be75da30..2b47316df2d 100644
--- a/adapters/yeahmobi/params_test.go
+++ b/adapters/yeahmobi/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/yeahmobi/yeahmobi.go b/adapters/yeahmobi/yeahmobi.go
index b533e76b19a..934cee5c27b 100644
--- a/adapters/yeahmobi/yeahmobi.go
+++ b/adapters/yeahmobi/yeahmobi.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -85,7 +86,7 @@ func transform(request *openrtb2.BidRequest) {
 		if imp.Native != nil {
 			var nativeRequest map[string]interface{}
 			nativeCopyRequest := make(map[string]interface{})
-			err := json.Unmarshal([]byte(request.Imp[i].Native.Request), &nativeRequest)
+			err := jsonutil.Unmarshal([]byte(request.Imp[i].Native.Request), &nativeRequest)
 			//just ignore the bad native request
 			if err == nil {
 				_, exists := nativeRequest["native"]
@@ -114,12 +115,12 @@ func getYeahmobiExt(request *openrtb2.BidRequest) (*openrtb_ext.ExtImpYeahmobi,
 
 	for _, imp := range request.Imp {
 		var extBidder adapters.ExtImpBidder
-		err := json.Unmarshal(imp.Ext, &extBidder)
+		err := jsonutil.Unmarshal(imp.Ext, &extBidder)
 		if err != nil {
 			errs = append(errs, err)
 			continue
 		}
-		err = json.Unmarshal(extBidder.Bidder, &extImpYeahmobi)
+		err = jsonutil.Unmarshal(extBidder.Bidder, &extImpYeahmobi)
 		if err != nil {
 			errs = append(errs, err)
 			continue
@@ -151,7 +152,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 		}}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 	bidResponse := adapters.NewBidderResponseWithBidsCapacity(1)
@@ -166,7 +167,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 			}
 			if bid.Ext != nil {
 				var bidExt *yeahmobiBidExt
-				err := json.Unmarshal(bid.Ext, &bidExt)
+				err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 				if err != nil {
 					return nil, []error{fmt.Errorf("bid.ext json unmarshal error")}
 				} else if bidExt != nil {
diff --git a/adapters/yeahmobi/yeahmobi_test.go b/adapters/yeahmobi/yeahmobi_test.go
index c1c7be35105..d822b32d675 100644
--- a/adapters/yeahmobi/yeahmobi_test.go
+++ b/adapters/yeahmobi/yeahmobi_test.go
@@ -3,9 +3,9 @@ package yeahmobi
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/yeahmobi/yeahmobitest/supplemental/bad_imp_ext.json b/adapters/yeahmobi/yeahmobitest/supplemental/bad_imp_ext.json
index 444e1e7a8d8..782f7a0c3b4 100644
--- a/adapters/yeahmobi/yeahmobitest/supplemental/bad_imp_ext.json
+++ b/adapters/yeahmobi/yeahmobitest/supplemental/bad_imp_ext.json
@@ -14,7 +14,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/yeahmobi/yeahmobitest/supplemental/bad_imp_ext_bidder.json b/adapters/yeahmobi/yeahmobitest/supplemental/bad_imp_ext_bidder.json
index 89697d37141..da9dce00905 100644
--- a/adapters/yeahmobi/yeahmobitest/supplemental/bad_imp_ext_bidder.json
+++ b/adapters/yeahmobi/yeahmobitest/supplemental/bad_imp_ext_bidder.json
@@ -16,7 +16,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb_ext.ExtImpYeahmobi",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/yeahmobi/yeahmobitest/supplemental/bad_response.json b/adapters/yeahmobi/yeahmobitest/supplemental/bad_response.json
index 2fc375532de..43e16117887 100644
--- a/adapters/yeahmobi/yeahmobitest/supplemental/bad_response.json
+++ b/adapters/yeahmobi/yeahmobitest/supplemental/bad_response.json
@@ -50,7 +50,7 @@
   "expectedMakeBidsErrors": [
     {
       "comparison": "literal",
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse"
+      "value": "expect { or n, but found \""
     }
   ]
 }
diff --git a/adapters/yieldlab/params_test.go b/adapters/yieldlab/params_test.go
index 74a91ac3bf7..ac65adc0fe7 100644
--- a/adapters/yieldlab/params_test.go
+++ b/adapters/yieldlab/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/yieldlab.json
diff --git a/adapters/yieldlab/types.go b/adapters/yieldlab/types.go
index 9d3bc6a2fa6..57ee15c923b 100644
--- a/adapters/yieldlab/types.go
+++ b/adapters/yieldlab/types.go
@@ -1,9 +1,10 @@
 package yieldlab
 
 import (
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
 	"strconv"
 	"time"
+
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 type bidResponse struct {
diff --git a/adapters/yieldlab/yieldlab.go b/adapters/yieldlab/yieldlab.go
index c92abe7597d..7ffafc25d50 100644
--- a/adapters/yieldlab/yieldlab.go
+++ b/adapters/yieldlab/yieldlab.go
@@ -12,11 +12,12 @@ import (
 	"golang.org/x/text/currency"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 // YieldlabAdapter connects the Yieldlab API to prebid server
@@ -130,7 +131,7 @@ func getDSA(req *openrtb2.BidRequest) (*dsaRequest, error) {
 	}
 
 	var extRegs openRTBExtRegsWithDSA
-	err := json.Unmarshal(req.Regs.Ext, &extRegs)
+	err := jsonutil.Unmarshal(req.Regs.Ext, &extRegs)
 	if err != nil {
 		return nil, fmt.Errorf("failed to parse Regs.Ext object from Yieldlab response: %v", err)
 	}
@@ -207,7 +208,7 @@ func (a *YieldlabAdapter) getGDPR(request *openrtb2.BidRequest) (string, string,
 	consent := ""
 	if request.User != nil && request.User.Ext != nil {
 		var extUser openrtb_ext.ExtUser
-		if err := json.Unmarshal(request.User.Ext, &extUser); err != nil {
+		if err := jsonutil.Unmarshal(request.User.Ext, &extUser); err != nil {
 			return "", "", fmt.Errorf("failed to parse ExtUser in Yieldlab GDPR check: %v", err)
 		}
 		consent = extUser.Consent
@@ -216,7 +217,7 @@ func (a *YieldlabAdapter) getGDPR(request *openrtb2.BidRequest) (string, string,
 	gdpr := ""
 	var extRegs openrtb_ext.ExtRegs
 	if request.Regs != nil {
-		if err := json.Unmarshal(request.Regs.Ext, &extRegs); err == nil {
+		if err := jsonutil.Unmarshal(request.Regs.Ext, &extRegs); err == nil {
 			if extRegs.GDPR != nil && (*extRegs.GDPR == 0 || *extRegs.GDPR == 1) {
 				gdpr = strconv.Itoa(int(*extRegs.GDPR))
 			}
@@ -271,12 +272,12 @@ func (a *YieldlabAdapter) parseRequest(request *openrtb2.BidRequest) []*openrtb_
 
 	for i := 0; i < len(request.Imp); i++ {
 		bidderExt := new(adapters.ExtImpBidder)
-		if err := json.Unmarshal(request.Imp[i].Ext, bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(request.Imp[i].Ext, bidderExt); err != nil {
 			continue
 		}
 
 		yieldlabExt := new(openrtb_ext.ExtImpYieldlab)
-		if err := json.Unmarshal(bidderExt.Bidder, yieldlabExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, yieldlabExt); err != nil {
 			continue
 		}
 
@@ -314,7 +315,7 @@ func (a *YieldlabAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externa
 	}
 
 	bids := make([]*bidResponse, 0)
-	if err := json.Unmarshal(response.Body, &bids); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bids); err != nil {
 		return nil, []error{
 			&errortypes.BadServerResponse{
 				Message: fmt.Sprintf("failed to parse bids response from yieldlab: %v", err),
@@ -420,9 +421,9 @@ func (a *YieldlabAdapter) findBidReq(adslotID uint64, params []*openrtb_ext.ExtI
 
 func (a *YieldlabAdapter) extractAdslotID(internalRequestImp openrtb2.Imp) string {
 	bidderExt := new(adapters.ExtImpBidder)
-	json.Unmarshal(internalRequestImp.Ext, bidderExt)
+	jsonutil.Unmarshal(internalRequestImp.Ext, bidderExt)
 	yieldlabExt := new(openrtb_ext.ExtImpYieldlab)
-	json.Unmarshal(bidderExt.Bidder, yieldlabExt)
+	jsonutil.Unmarshal(bidderExt.Bidder, yieldlabExt)
 	return yieldlabExt.AdslotID
 }
 
@@ -460,7 +461,7 @@ func (a *YieldlabAdapter) makeCreativeID(req *openrtb_ext.ExtImpYieldlab, bid *b
 // unmarshalSupplyChain makes the value for the schain URL parameter from the openRTB schain object.
 func unmarshalSupplyChain(req *openrtb2.BidRequest) *openrtb2.SupplyChain {
 	var extSChain openrtb_ext.ExtRequestPrebidSChain
-	err := json.Unmarshal(req.Source.Ext, &extSChain)
+	err := jsonutil.Unmarshal(req.Source.Ext, &extSChain)
 	if err != nil {
 		// req.Source.Ext could be anything so don't handle any errors
 		return nil
diff --git a/adapters/yieldlab/yieldlab_test.go b/adapters/yieldlab/yieldlab_test.go
index 49dcc31e598..1bea9b12ea9 100644
--- a/adapters/yieldlab/yieldlab_test.go
+++ b/adapters/yieldlab/yieldlab_test.go
@@ -8,9 +8,9 @@ import (
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const testURL = "https://ad.yieldlab.net/testing/"
diff --git a/adapters/yieldlab/yieldlabtest/supplemental/invalid_reg_ext.json b/adapters/yieldlab/yieldlabtest/supplemental/invalid_reg_ext.json
index 1723b8fbe80..51e8e87d540 100644
--- a/adapters/yieldlab/yieldlabtest/supplemental/invalid_reg_ext.json
+++ b/adapters/yieldlab/yieldlabtest/supplemental/invalid_reg_ext.json
@@ -60,7 +60,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "failed to parse Regs.Ext object from Yieldlab response: json: cannot unmarshal string into Go struct field openRTBExtRegsWithDSA.dsa of type yieldlab.dsaRequest",
+      "value": "failed to parse Regs.Ext object from Yieldlab response: cannot unmarshal yieldlab.openRTBExtRegsWithDSA.DSA: expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/yieldmo/params_test.go b/adapters/yieldmo/params_test.go
index 647c21abb90..baa566cf713 100644
--- a/adapters/yieldmo/params_test.go
+++ b/adapters/yieldmo/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // This file actually intends to test static/bidder-params/yieldmo.json
diff --git a/adapters/yieldmo/yieldmo.go b/adapters/yieldmo/yieldmo.go
index 107622e9304..0725f7920c3 100644
--- a/adapters/yieldmo/yieldmo.go
+++ b/adapters/yieldmo/yieldmo.go
@@ -7,10 +7,11 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type YieldmoAdapter struct {
@@ -81,7 +82,7 @@ func preprocess(request *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo
 			}
 		}
 
-		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -89,7 +90,7 @@ func preprocess(request *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo
 
 		var yieldmoExt openrtb_ext.ExtImpYieldmo
 
-		if err := json.Unmarshal(bidderExt.Bidder, &yieldmoExt); err != nil {
+		if err := jsonutil.Unmarshal(bidderExt.Bidder, &yieldmoExt); err != nil {
 			errs = append(errs, &errortypes.BadInput{
 				Message: err.Error(),
 			})
@@ -137,7 +138,7 @@ func (a *YieldmoAdapter) MakeBids(internalRequest *openrtb2.BidRequest, external
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -170,7 +171,7 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 // Retrieve the media type corresponding to the bid from the bid.ext object
 func getMediaTypeForImp(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 	var bidExt ExtBid
-	if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
+	if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err != nil {
 		return "", &errortypes.BadInput{Message: err.Error()}
 	}
 
diff --git a/adapters/yieldmo/yieldmo_test.go b/adapters/yieldmo/yieldmo_test.go
index f89d4849a2c..668e0a375ea 100644
--- a/adapters/yieldmo/yieldmo_test.go
+++ b/adapters/yieldmo/yieldmo_test.go
@@ -3,9 +3,9 @@ package yieldmo
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/yieldone/params_test.go b/adapters/yieldone/params_test.go
index 623928839ef..5632546ac31 100644
--- a/adapters/yieldone/params_test.go
+++ b/adapters/yieldone/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/yieldone/yieldone.go b/adapters/yieldone/yieldone.go
index 8cd7dbd6021..b1aa6465386 100644
--- a/adapters/yieldone/yieldone.go
+++ b/adapters/yieldone/yieldone.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type YieldoneAdapter struct {
@@ -68,7 +69,7 @@ func (a *YieldoneAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externa
 	}
 
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -105,11 +106,11 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 func preprocess(imp *openrtb2.Imp) error {
 
 	var ext adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &ext); err != nil {
 		return err
 	}
 	var impressionExt openrtb_ext.ExtImpYieldone
-	if err := json.Unmarshal(ext.Bidder, &impressionExt); err != nil {
+	if err := jsonutil.Unmarshal(ext.Bidder, &impressionExt); err != nil {
 		return err
 	}
 
diff --git a/adapters/yieldone/yieldone_test.go b/adapters/yieldone/yieldone_test.go
index 1847ef9bf06..a9831561d43 100644
--- a/adapters/yieldone/yieldone_test.go
+++ b/adapters/yieldone/yieldone_test.go
@@ -3,9 +3,9 @@ package yieldone
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/yieldone/yieldonetest/supplemental/bad_response.json b/adapters/yieldone/yieldonetest/supplemental/bad_response.json
index ac4bfd7da23..c3ce0ed0c65 100644
--- a/adapters/yieldone/yieldonetest/supplemental/bad_response.json
+++ b/adapters/yieldone/yieldonetest/supplemental/bad_response.json
@@ -59,7 +59,7 @@
 
   "expectedMakeBidsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/zeroclickfraud/zeroclickfraud.go b/adapters/zeroclickfraud/zeroclickfraud.go
index 0b5c74771ba..eecd1dd8589 100644
--- a/adapters/zeroclickfraud/zeroclickfraud.go
+++ b/adapters/zeroclickfraud/zeroclickfraud.go
@@ -8,11 +8,12 @@ import (
 	"text/template"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type ZeroClickFraudAdapter struct {
@@ -92,7 +93,7 @@ func (a *ZeroClickFraudAdapter) MakeBids(
 
 	var bidResp openrtb2.BidResponse
 
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 
@@ -130,13 +131,13 @@ func splitImpressions(imps []openrtb2.Imp) (map[openrtb_ext.ExtImpZeroClickFraud
 
 func getBidderParams(imp *openrtb2.Imp) (*openrtb_ext.ExtImpZeroClickFraud, error) {
 	var bidderExt adapters.ExtImpBidder
-	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Missing bidder ext: %s", err.Error()),
 		}
 	}
 	var zeroclickfraudExt openrtb_ext.ExtImpZeroClickFraud
-	if err := json.Unmarshal(bidderExt.Bidder, &zeroclickfraudExt); err != nil {
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &zeroclickfraudExt); err != nil {
 		return nil, &errortypes.BadInput{
 			Message: fmt.Sprintf("Cannot Resolve host or sourceId: %s", err.Error()),
 		}
diff --git a/adapters/zeroclickfraud/zeroclickfraud_test.go b/adapters/zeroclickfraud/zeroclickfraud_test.go
index 6e2a7e23b4c..363f37c0e17 100644
--- a/adapters/zeroclickfraud/zeroclickfraud_test.go
+++ b/adapters/zeroclickfraud/zeroclickfraud_test.go
@@ -3,9 +3,9 @@ package zeroclickfraud
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/bad-response-body.json b/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/bad-response-body.json
index 8dc9ffd6469..9e1483c79ec 100644
--- a/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/bad-response-body.json
+++ b/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/bad-response-body.json
@@ -82,7 +82,7 @@
     }],
     "expectedMakeBidsErrors": [
       {
-        "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse",
+        "value": "expect { or n, but found \"",
         "comparison": "literal"  
       }
     ]
diff --git a/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/missing-ext.json b/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/missing-ext.json
index 68d29e880b9..9e72e3cb6e5 100644
--- a/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/missing-ext.json
+++ b/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/missing-ext.json
@@ -18,8 +18,8 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "Missing bidder ext: unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "Missing bidder ext: expect { or n, but found",
+      "comparison": "startswith"
     } 
   ]
 
diff --git a/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/missing-extparam.json b/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/missing-extparam.json
index d272cd5347c..7755ef80ec2 100644
--- a/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/missing-extparam.json
+++ b/adapters/zeroclickfraud/zeroclickfraudtest/supplemental/missing-extparam.json
@@ -21,8 +21,8 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "Cannot Resolve host or sourceId: unexpected end of JSON input",
-      "comparison": "literal"
+      "value": "Cannot Resolve host or sourceId: expect { or n, but found",
+      "comparison": "startswith"
     } 
   ]
 
diff --git a/adapters/zeta_global_ssp/zeta_global_ssp.go b/adapters/zeta_global_ssp/zeta_global_ssp.go
index cf78b91ac8a..e06c6f05eff 100644
--- a/adapters/zeta_global_ssp/zeta_global_ssp.go
+++ b/adapters/zeta_global_ssp/zeta_global_ssp.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -54,7 +55,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 	}
 
 	var response openrtb2.BidResponse
-	if err := json.Unmarshal(responseData.Body, &response); err != nil {
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
 		return nil, []error{err}
 	}
 
@@ -81,7 +82,7 @@ func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.R
 func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 	if bid.Ext != nil {
 		var bidExt openrtb_ext.ExtBid
-		err := json.Unmarshal(bid.Ext, &bidExt)
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
 		if err == nil && bidExt.Prebid != nil {
 			return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
 		}
diff --git a/adapters/zeta_global_ssp/zeta_global_ssp_test.go b/adapters/zeta_global_ssp/zeta_global_ssp_test.go
index fabfa5efed8..f2b51409165 100644
--- a/adapters/zeta_global_ssp/zeta_global_ssp_test.go
+++ b/adapters/zeta_global_ssp/zeta_global_ssp_test.go
@@ -3,9 +3,9 @@ package zeta_global_ssp
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/zmaticoo/params_test.go b/adapters/zmaticoo/params_test.go
index 23c599e81b5..c6c462155aa 100644
--- a/adapters/zmaticoo/params_test.go
+++ b/adapters/zmaticoo/params_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestValidParams(t *testing.T) {
diff --git a/adapters/zmaticoo/zmaticoo.go b/adapters/zmaticoo/zmaticoo.go
index 61860df5b22..9e0da9e449a 100644
--- a/adapters/zmaticoo/zmaticoo.go
+++ b/adapters/zmaticoo/zmaticoo.go
@@ -6,10 +6,11 @@ import (
 	"net/http"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type adapter struct {
@@ -61,7 +62,7 @@ func transform(request *openrtb2.BidRequest) error {
 		if imp.Native != nil {
 			var nativeRequest map[string]interface{}
 			nativeCopyRequest := make(map[string]interface{})
-			if err := json.Unmarshal([]byte(request.Imp[i].Native.Request), &nativeRequest); err != nil {
+			if err := jsonutil.Unmarshal([]byte(request.Imp[i].Native.Request), &nativeRequest); err != nil {
 				return err
 			}
 			_, exists := nativeRequest["native"]
@@ -86,12 +87,12 @@ func validateZmaticooExt(request *openrtb2.BidRequest) []error {
 	var errs []error
 	for _, imp := range request.Imp {
 		var extBidder adapters.ExtImpBidder
-		err := json.Unmarshal(imp.Ext, &extBidder)
+		err := jsonutil.Unmarshal(imp.Ext, &extBidder)
 		if err != nil {
 			errs = append(errs, err)
 			continue
 		}
-		err = json.Unmarshal(extBidder.Bidder, &extImpZmaticoo)
+		err = jsonutil.Unmarshal(extBidder.Bidder, &extImpZmaticoo)
 		if err != nil {
 			errs = append(errs, err)
 			continue
@@ -116,7 +117,7 @@ func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest
 		}}
 	}
 	var bidResp openrtb2.BidResponse
-	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+	if err := jsonutil.Unmarshal(response.Body, &bidResp); err != nil {
 		return nil, []error{err}
 	}
 	var errs []error
diff --git a/adapters/zmaticoo/zmaticoo_test.go b/adapters/zmaticoo/zmaticoo_test.go
index 1effdd2afa7..df12c1e1b6f 100644
--- a/adapters/zmaticoo/zmaticoo_test.go
+++ b/adapters/zmaticoo/zmaticoo_test.go
@@ -3,9 +3,9 @@ package zmaticoo
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func TestJsonSamples(t *testing.T) {
diff --git a/adapters/zmaticoo/zmaticootest/supplemental/bad_imp_ext.json b/adapters/zmaticoo/zmaticootest/supplemental/bad_imp_ext.json
index 444e1e7a8d8..782f7a0c3b4 100644
--- a/adapters/zmaticoo/zmaticootest/supplemental/bad_imp_ext.json
+++ b/adapters/zmaticoo/zmaticootest/supplemental/bad_imp_ext.json
@@ -14,7 +14,7 @@
 
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/zmaticoo/zmaticootest/supplemental/bad_imp_ext_bidder.json b/adapters/zmaticoo/zmaticootest/supplemental/bad_imp_ext_bidder.json
index 433bac5e564..b9a32be2ce6 100644
--- a/adapters/zmaticoo/zmaticootest/supplemental/bad_imp_ext_bidder.json
+++ b/adapters/zmaticoo/zmaticootest/supplemental/bad_imp_ext_bidder.json
@@ -20,7 +20,7 @@
   },
   "expectedMakeRequestsErrors": [
     {
-      "value": "json: cannot unmarshal string into Go value of type openrtb_ext.ExtImpZmaticoo",
+      "value": "expect { or n, but found \"",
       "comparison": "literal"
     }
   ]
diff --git a/adapters/zmaticoo/zmaticootest/supplemental/bad_response.json b/adapters/zmaticoo/zmaticootest/supplemental/bad_response.json
index e129e3ce4a7..3d053597a20 100644
--- a/adapters/zmaticoo/zmaticootest/supplemental/bad_response.json
+++ b/adapters/zmaticoo/zmaticootest/supplemental/bad_response.json
@@ -58,7 +58,7 @@
   "expectedMakeBidsErrors": [
     {
       "comparison": "literal",
-      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse"
+      "value": "expect { or n, but found \""
     }
   ]
 }
diff --git a/adservertargeting/adservertargeting.go b/adservertargeting/adservertargeting.go
index d53af49f36c..3ab7cefe6c4 100644
--- a/adservertargeting/adservertargeting.go
+++ b/adservertargeting/adservertargeting.go
@@ -7,7 +7,7 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 type DataSource string
diff --git a/adservertargeting/adservertargeting_test.go b/adservertargeting/adservertargeting_test.go
index 14daa0beb26..8ba3c256b3d 100644
--- a/adservertargeting/adservertargeting_test.go
+++ b/adservertargeting/adservertargeting_test.go
@@ -7,8 +7,8 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/prebid/openrtb/v20/openrtb3"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adservertargeting/reqcache.go b/adservertargeting/reqcache.go
index dfe429d5056..03c87f024cb 100644
--- a/adservertargeting/reqcache.go
+++ b/adservertargeting/reqcache.go
@@ -5,7 +5,7 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type requestCache struct {
diff --git a/adservertargeting/requestlookup.go b/adservertargeting/requestlookup.go
index d3284525b50..31c1a9d939e 100644
--- a/adservertargeting/requestlookup.go
+++ b/adservertargeting/requestlookup.go
@@ -8,7 +8,7 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/pkg/errors"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func getAdServerTargeting(reqWrapper *openrtb_ext.RequestWrapper) ([]openrtb_ext.AdServerTarget, error) {
diff --git a/adservertargeting/requestlookup_test.go b/adservertargeting/requestlookup_test.go
index 3de9bd72322..22f914ac793 100644
--- a/adservertargeting/requestlookup_test.go
+++ b/adservertargeting/requestlookup_test.go
@@ -6,7 +6,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adservertargeting/respdataprocessor.go b/adservertargeting/respdataprocessor.go
index 51bad207337..4b18d64b44b 100644
--- a/adservertargeting/respdataprocessor.go
+++ b/adservertargeting/respdataprocessor.go
@@ -7,8 +7,8 @@ import (
 
 	"github.com/pkg/errors"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 )
 
diff --git a/adservertargeting/respdataprocessor_test.go b/adservertargeting/respdataprocessor_test.go
index 6970cfaceac..973f9b801e5 100644
--- a/adservertargeting/respdataprocessor_test.go
+++ b/adservertargeting/respdataprocessor_test.go
@@ -8,7 +8,7 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/prebid/openrtb/v20/openrtb3"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/adservertargeting/utils.go b/adservertargeting/utils.go
index 136f7900e24..dd70bf1b667 100644
--- a/adservertargeting/utils.go
+++ b/adservertargeting/utils.go
@@ -5,8 +5,8 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/pkg/errors"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func splitAndGet(path string, data []byte, delimiter string) (string, error) {
diff --git a/amp/parse.go b/amp/parse.go
index 12663ee93bd..2a86bc7b6b7 100644
--- a/amp/parse.go
+++ b/amp/parse.go
@@ -10,10 +10,10 @@ import (
 	tcf2 "github.com/prebid/go-gdpr/vendorconsent/tcf2"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/privacy/ccpa"
-	"github.com/prebid/prebid-server/v2/privacy/gdpr"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/privacy/ccpa"
+	"github.com/prebid/prebid-server/v3/privacy/gdpr"
 )
 
 // Params defines the parameters of an AMP request.
@@ -117,7 +117,7 @@ func buildGdprTCF2ConsentWriter(ampParams Params) gdpr.ConsentWriter {
 		// set regs.ext.gdpr if non-nil gdpr_applies was set to true
 		gdprValue = parseGdprApplies(ampParams.GdprApplies)
 	}
-	writer.RegExtGDPR = &gdprValue
+	writer.GDPR = &gdprValue
 
 	return writer
 }
diff --git a/amp/parse_test.go b/amp/parse_test.go
index f2f097284c5..65b69012b45 100644
--- a/amp/parse_test.go
+++ b/amp/parse_test.go
@@ -5,10 +5,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/privacy/ccpa"
-	"github.com/prebid/prebid-server/v2/privacy/gdpr"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/privacy/ccpa"
+	"github.com/prebid/prebid-server/v3/privacy/gdpr"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -311,8 +311,8 @@ func TestPrivacyReader(t *testing.T) {
 					},
 					expected: expectedResults{
 						policyWriter: gdpr.ConsentWriter{
-							Consent:    "CPdiPIJPdiPIJACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA",
-							RegExtGDPR: &int8One,
+							Consent: "CPdiPIJPdiPIJACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA",
+							GDPR:    &int8One,
 						},
 						warning: nil,
 					},
@@ -378,8 +378,8 @@ func TestPrivacyReader(t *testing.T) {
 					},
 					expected: expectedResults{
 						policyWriter: gdpr.ConsentWriter{
-							Consent:    "CPdiPIJPdiPIJACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA",
-							RegExtGDPR: &int8One,
+							Consent: "CPdiPIJPdiPIJACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA",
+							GDPR:    &int8One,
 						},
 						warning: nil,
 					},
@@ -400,8 +400,8 @@ func TestPrivacyReader(t *testing.T) {
 					},
 					expected: expectedResults{
 						policyWriter: gdpr.ConsentWriter{
-							Consent:    "INVALID_GDPR",
-							RegExtGDPR: &int8One,
+							Consent: "INVALID_GDPR",
+							GDPR:    &int8One,
 						},
 						warning: &errortypes.Warning{
 							Message:     "Consent string 'INVALID_GDPR' is not a valid TCF2 consent string.",
@@ -420,8 +420,8 @@ func TestPrivacyReader(t *testing.T) {
 					},
 					expected: expectedResults{
 						policyWriter: gdpr.ConsentWriter{
-							Consent:    "INVALID_GDPR",
-							RegExtGDPR: &int8Zero,
+							Consent: "INVALID_GDPR",
+							GDPR:    &int8Zero,
 						},
 						warning: &errortypes.Warning{
 							Message:     "Consent string 'INVALID_GDPR' is not a valid TCF2 consent string.",
@@ -440,8 +440,8 @@ func TestPrivacyReader(t *testing.T) {
 					},
 					expected: expectedResults{
 						policyWriter: gdpr.ConsentWriter{
-							Consent:    "CPdiPIJPdiPIJACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA",
-							RegExtGDPR: &int8Zero,
+							Consent: "CPdiPIJPdiPIJACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA",
+							GDPR:    &int8Zero,
 						},
 						warning: nil,
 					},
@@ -457,8 +457,8 @@ func TestPrivacyReader(t *testing.T) {
 					},
 					expected: expectedResults{
 						policyWriter: gdpr.ConsentWriter{
-							Consent:    "CPdiPIJPdiPIJACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA",
-							RegExtGDPR: &int8One,
+							Consent: "CPdiPIJPdiPIJACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA",
+							GDPR:    &int8One,
 						},
 						warning: nil,
 					},
@@ -473,8 +473,8 @@ func TestPrivacyReader(t *testing.T) {
 					},
 					expected: expectedResults{
 						policyWriter: gdpr.ConsentWriter{
-							Consent:    "CPdiPIJPdiPIJACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA",
-							RegExtGDPR: &int8One,
+							Consent: "CPdiPIJPdiPIJACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA",
+							GDPR:    &int8One,
 						},
 						warning: nil,
 					},
@@ -559,8 +559,8 @@ func TestBuildGdprTCF2ConsentWriter(t *testing.T) {
 			desc:     "gdpr_applies not set",
 			inParams: Params{Consent: consentString},
 			expectedWriter: gdpr.ConsentWriter{
-				Consent:    consentString,
-				RegExtGDPR: &int8One,
+				Consent: consentString,
+				GDPR:    &int8One,
 			},
 		},
 		{
@@ -570,8 +570,8 @@ func TestBuildGdprTCF2ConsentWriter(t *testing.T) {
 				GdprApplies: &boolFalse,
 			},
 			expectedWriter: gdpr.ConsentWriter{
-				Consent:    consentString,
-				RegExtGDPR: &int8Zero,
+				Consent: consentString,
+				GDPR:    &int8Zero,
 			},
 		},
 		{
@@ -581,8 +581,8 @@ func TestBuildGdprTCF2ConsentWriter(t *testing.T) {
 				GdprApplies: &boolTrue,
 			},
 			expectedWriter: gdpr.ConsentWriter{
-				Consent:    consentString,
-				RegExtGDPR: &int8One,
+				Consent: consentString,
+				GDPR:    &int8One,
 			},
 		},
 	}
diff --git a/analytics/agma/agma_module.go b/analytics/agma/agma_module.go
index b1a94537466..6ee16e93b84 100644
--- a/analytics/agma/agma_module.go
+++ b/analytics/agma/agma_module.go
@@ -14,9 +14,9 @@ import (
 	"github.com/docker/go-units"
 	"github.com/golang/glog"
 	"github.com/prebid/go-gdpr/vendorconsent"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 type httpSender = func(payload []byte) error
@@ -178,15 +178,11 @@ func (l *AgmaLogger) extractPublisherAndSite(requestWrapper *openrtb_ext.Request
 }
 
 func (l *AgmaLogger) shouldTrackEvent(requestWrapper *openrtb_ext.RequestWrapper) (bool, string) {
-	userExt, err := requestWrapper.GetUserExt()
-	if err != nil || userExt == nil {
+	if requestWrapper.User == nil {
 		return false, ""
 	}
-	consent := userExt.GetConsent()
-	if consent == nil {
-		return false, ""
-	}
-	consentStr := *consent
+	consentStr := requestWrapper.User.Consent
+
 	parsedConsent, err := vendorconsent.ParseString(consentStr)
 	if err != nil {
 		return false, ""
diff --git a/analytics/agma/agma_module_test.go b/analytics/agma/agma_module_test.go
index 8dfbb054d19..25f62d6e9e0 100644
--- a/analytics/agma/agma_module_test.go
+++ b/analytics/agma/agma_module_test.go
@@ -1,7 +1,6 @@
 package agma
 
 import (
-	"encoding/json"
 	"io"
 	"net/http"
 	"net/http/httptest"
@@ -12,9 +11,9 @@ import (
 
 	"github.com/benbjohnson/clock"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 )
@@ -37,7 +36,7 @@ var mockValidAuctionObject = analytics.AuctionObject{
 				UA: "ua",
 			},
 			User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent": "` + agmaConsent + `"}`),
+				Consent: agmaConsent,
 			},
 		},
 	},
@@ -59,7 +58,7 @@ var mockValidVideoObject = analytics.VideoObject{
 				UA: "ua",
 			},
 			User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent": "` + agmaConsent + `"}`),
+				Consent: agmaConsent,
 			},
 		},
 	},
@@ -81,7 +80,7 @@ var mockValidAmpObject = analytics.AmpObject{
 				UA: "ua",
 			},
 			User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent": "` + agmaConsent + `"}`),
+				Consent: agmaConsent,
 			},
 		},
 	},
@@ -212,7 +211,7 @@ func TestShouldTrackEvent(t *testing.T) {
 				},
 			},
 			User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent": "` + agmaConsent + `"}`),
+				Consent: agmaConsent,
 			},
 		},
 	})
@@ -245,7 +244,7 @@ func TestShouldTrackEvent(t *testing.T) {
 				},
 			},
 			User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent": "CP4LywcP4LywcLRAAAENCZCAAAIAAAIAAAAAIxQAQIwgAAAA.II7Nd_X__bX9n-_7_6ft0eY1f9_r37uQzDhfNs-8F3L_W_LwX32E7NF36tq4KmR4ku1bBIQNtHMnUDUmxaolVrzHsak2cpyNKJ_JkknsZe2dYGF9Pn9lD-YKZ7_5_9_f52T_9_9_-39z3_9f___dv_-__-vjf_599n_v9fV_78_Kf9______-____________8A"}`),
+				Consent: "CP4LywcP4LywcLRAAAENCZCAAAIAAAIAAAAAIxQAQIwgAAAA.II7Nd_X__bX9n-_7_6ft0eY1f9_r37uQzDhfNs-8F3L_W_LwX32E7NF36tq4KmR4ku1bBIQNtHMnUDUmxaolVrzHsak2cpyNKJ_JkknsZe2dYGF9Pn9lD-YKZ7_5_9_f52T_9_9_-39z3_9f___dv_-__-vjf_599n_v9fV_78_Kf9______-____________8A",
 			},
 		},
 	})
@@ -263,7 +262,7 @@ func TestShouldTrackEvent(t *testing.T) {
 				},
 			},
 			User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent": "CP4LywcP4LywcLRAAAENCZCAAIAAAAAAAAAAIxQAQIxAAAAA.II7Nd_X__bX9n-_7_6ft0eY1f9_r37uQzDhfNs-8F3L_W_LwX32E7NF36tq4KmR4ku1bBIQNtHMnUDUmxaolVrzHsak2cpyNKJ_JkknsZe2dYGF9Pn9lD-YKZ7_5_9_f52T_9_9_-39z3_9f___dv_-__-vjf_599n_v9fV_78_Kf9______-____________8A"}`),
+				Consent: "CP4LywcP4LywcLRAAAENCZCAAIAAAAAAAAAAIxQAQIxAAAAA.II7Nd_X__bX9n-_7_6ft0eY1f9_r37uQzDhfNs-8F3L_W_LwX32E7NF36tq4KmR4ku1bBIQNtHMnUDUmxaolVrzHsak2cpyNKJ_JkknsZe2dYGF9Pn9lD-YKZ7_5_9_f52T_9_9_-39z3_9f___dv_-__-vjf_599n_v9fV_78_Kf9______-____________8A",
 			},
 		},
 	})
@@ -281,7 +280,7 @@ func TestShouldTrackEvent(t *testing.T) {
 				},
 			},
 			User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent": "` + agmaConsent + `"}`),
+				Consent: agmaConsent,
 			},
 		},
 	})
@@ -296,7 +295,7 @@ func TestShouldTrackEvent(t *testing.T) {
 				ID: "track-me",
 			},
 			User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent": "` + agmaConsent + `"}`),
+				Consent: agmaConsent,
 			},
 		},
 	})
@@ -311,7 +310,7 @@ func TestShouldTrackEvent(t *testing.T) {
 				Bundle: "track-me",
 			},
 			User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent": "` + agmaConsent + `"}`),
+				Consent: agmaConsent,
 			},
 		},
 	})
@@ -359,7 +358,7 @@ func TestShouldTrackMultipleAccounts(t *testing.T) {
 				},
 			},
 			User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent": "` + agmaConsent + `"}`),
+				Consent: agmaConsent,
 			},
 		},
 	})
@@ -377,7 +376,7 @@ func TestShouldTrackMultipleAccounts(t *testing.T) {
 				},
 			},
 			User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent": "` + agmaConsent + `"}`),
+				Consent: agmaConsent,
 			},
 		},
 	})
@@ -691,7 +690,7 @@ func TestRaceEnd2End(t *testing.T) {
 
 	time.Sleep(250 * time.Millisecond)
 
-	expected := "[{\"type\":\"amp\",\"id\":\"some-id\",\"code\":\"abcd\",\"site\":{\"id\":\"track-me-site\",\"publisher\":{\"id\":\"track-me\"}},\"device\":{\"ua\":\"ua\"},\"user\":{\"ext\":{\"consent\": \"" + agmaConsent + "\"}},\"created_at\":\"2023-02-01T00:00:00Z\"},{\"type\":\"amp\",\"id\":\"some-id\",\"code\":\"abcd\",\"site\":{\"id\":\"track-me-site\",\"publisher\":{\"id\":\"track-me\"}},\"device\":{\"ua\":\"ua\"},\"user\":{\"ext\":{\"consent\": \"" + agmaConsent + "\"}},\"created_at\":\"2023-02-01T00:00:00Z\"}]"
+	expected := "[{\"type\":\"amp\",\"id\":\"some-id\",\"code\":\"abcd\",\"site\":{\"id\":\"track-me-site\",\"publisher\":{\"id\":\"track-me\"}},\"device\":{\"ua\":\"ua\"},\"user\":{\"consent\":\"" + agmaConsent + "\"},\"created_at\":\"2023-02-01T00:00:00Z\"},{\"type\":\"amp\",\"id\":\"some-id\",\"code\":\"abcd\",\"site\":{\"id\":\"track-me-site\",\"publisher\":{\"id\":\"track-me\"}},\"device\":{\"ua\":\"ua\"},\"user\":{\"consent\":\"" + agmaConsent + "\"},\"created_at\":\"2023-02-01T00:00:00Z\"}]"
 
 	mu.Lock()
 	actual := requestBodyAsString
diff --git a/analytics/agma/model.go b/analytics/agma/model.go
index a0f5f55f08f..112ce961a0c 100644
--- a/analytics/agma/model.go
+++ b/analytics/agma/model.go
@@ -5,8 +5,8 @@ import (
 	"time"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type EventType string
diff --git a/analytics/agma/model_test.go b/analytics/agma/model_test.go
index ea1134c2320..925856b87b8 100644
--- a/analytics/agma/model_test.go
+++ b/analytics/agma/model_test.go
@@ -5,7 +5,7 @@ import (
 	"time"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/analytics/agma/sender.go b/analytics/agma/sender.go
index 6cdc5ea1526..b47b059536e 100644
--- a/analytics/agma/sender.go
+++ b/analytics/agma/sender.go
@@ -10,8 +10,8 @@ import (
 	"time"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/version"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/version"
 )
 
 func compressToGZIP(requestBody []byte) ([]byte, error) {
diff --git a/analytics/agma/sender_test.go b/analytics/agma/sender_test.go
index 05714674fea..1d23e6b6a90 100644
--- a/analytics/agma/sender_test.go
+++ b/analytics/agma/sender_test.go
@@ -7,7 +7,7 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/analytics/build/build.go b/analytics/build/build.go
index 3c9d7ccbaea..26edaa4f53b 100644
--- a/analytics/build/build.go
+++ b/analytics/build/build.go
@@ -5,15 +5,15 @@ import (
 
 	"github.com/benbjohnson/clock"
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/analytics/agma"
-	"github.com/prebid/prebid-server/v2/analytics/clients"
-	"github.com/prebid/prebid-server/v2/analytics/filesystem"
-	"github.com/prebid/prebid-server/v2/analytics/pubstack"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/privacy"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/analytics/agma"
+	"github.com/prebid/prebid-server/v3/analytics/clients"
+	"github.com/prebid/prebid-server/v3/analytics/filesystem"
+	"github.com/prebid/prebid-server/v3/analytics/pubstack"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/privacy"
 )
 
 // Modules that need to be logged to need to be initialized here
diff --git a/analytics/build/build_test.go b/analytics/build/build_test.go
index c455c364e83..ae16e0f749b 100644
--- a/analytics/build/build_test.go
+++ b/analytics/build/build_test.go
@@ -1,18 +1,18 @@
 package build
 
 import (
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/iputil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/iputil"
 
 	"net/http"
 	"os"
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/analytics/core.go b/analytics/core.go
index bfbbe229fe9..25ff46c8247 100644
--- a/analytics/core.go
+++ b/analytics/core.go
@@ -4,9 +4,9 @@ import (
 	"time"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // Module must be implemented by analytics modules to extract the required information and logging
diff --git a/analytics/filesystem/file_module.go b/analytics/filesystem/file_module.go
index 1c1b1310c40..5555752e461 100644
--- a/analytics/filesystem/file_module.go
+++ b/analytics/filesystem/file_module.go
@@ -7,8 +7,8 @@ import (
 	cglog "github.com/chasex/glog"
 	"github.com/golang/glog"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type RequestType string
diff --git a/analytics/filesystem/file_module_test.go b/analytics/filesystem/file_module_test.go
index 5bc2439ac94..0e502cfb9e0 100644
--- a/analytics/filesystem/file_module_test.go
+++ b/analytics/filesystem/file_module_test.go
@@ -6,8 +6,8 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
 	"github.com/stretchr/testify/mock"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
diff --git a/analytics/filesystem/model.go b/analytics/filesystem/model.go
index 013a92593a4..aed111dd10a 100644
--- a/analytics/filesystem/model.go
+++ b/analytics/filesystem/model.go
@@ -4,10 +4,10 @@ import (
 	"time"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 type logAuction struct {
diff --git a/analytics/pubstack/configupdate.go b/analytics/pubstack/configupdate.go
index 0ecaaef05c3..166e69554d6 100644
--- a/analytics/pubstack/configupdate.go
+++ b/analytics/pubstack/configupdate.go
@@ -6,7 +6,7 @@ import (
 	"net/url"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/util/task"
+	"github.com/prebid/prebid-server/v3/util/task"
 )
 
 // ConfigUpdateTask publishes configurations until the stop channel is signaled.
diff --git a/analytics/pubstack/helpers/json.go b/analytics/pubstack/helpers/json.go
index c46393cbed8..fbdc173219e 100644
--- a/analytics/pubstack/helpers/json.go
+++ b/analytics/pubstack/helpers/json.go
@@ -4,8 +4,8 @@ import (
 	"fmt"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 func JsonifyAuctionObject(ao *analytics.AuctionObject, scope string) ([]byte, error) {
diff --git a/analytics/pubstack/helpers/json_test.go b/analytics/pubstack/helpers/json_test.go
index 79055d16eb5..1e6282078c0 100644
--- a/analytics/pubstack/helpers/json_test.go
+++ b/analytics/pubstack/helpers/json_test.go
@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/analytics"
+	"github.com/prebid/prebid-server/v3/analytics"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/analytics/pubstack/helpers/model.go b/analytics/pubstack/helpers/model.go
index 2af6a19e439..7dad2f7dade 100644
--- a/analytics/pubstack/helpers/model.go
+++ b/analytics/pubstack/helpers/model.go
@@ -4,10 +4,10 @@ import (
 	"time"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 type logAuction struct {
diff --git a/analytics/pubstack/pubstack_module.go b/analytics/pubstack/pubstack_module.go
index 8b012f172dc..c5bb02e2eb7 100644
--- a/analytics/pubstack/pubstack_module.go
+++ b/analytics/pubstack/pubstack_module.go
@@ -12,9 +12,9 @@ import (
 	"github.com/benbjohnson/clock"
 	"github.com/golang/glog"
 
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/analytics/pubstack/eventchannel"
-	"github.com/prebid/prebid-server/v2/analytics/pubstack/helpers"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/analytics/pubstack/eventchannel"
+	"github.com/prebid/prebid-server/v3/analytics/pubstack/helpers"
 )
 
 type Configuration struct {
diff --git a/analytics/pubstack/pubstack_module_test.go b/analytics/pubstack/pubstack_module_test.go
index 6b16d0b7e92..e2b4e118c6c 100644
--- a/analytics/pubstack/pubstack_module_test.go
+++ b/analytics/pubstack/pubstack_module_test.go
@@ -8,8 +8,8 @@ import (
 	"time"
 
 	"github.com/benbjohnson/clock"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/analytics/runner.go b/analytics/runner.go
index 2ca2841214f..d10370e4857 100644
--- a/analytics/runner.go
+++ b/analytics/runner.go
@@ -1,7 +1,7 @@
 package analytics
 
 import (
-	"github.com/prebid/prebid-server/v2/privacy"
+	"github.com/prebid/prebid-server/v3/privacy"
 )
 
 type Runner interface {
diff --git a/bidadjustment/apply.go b/bidadjustment/apply.go
index 86bc813dbee..864d6bf6fb5 100644
--- a/bidadjustment/apply.go
+++ b/bidadjustment/apply.go
@@ -3,8 +3,8 @@ package bidadjustment
 import (
 	"math"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const (
diff --git a/bidadjustment/apply_test.go b/bidadjustment/apply_test.go
index 3fa46b6bcb2..1a9bf75a20c 100644
--- a/bidadjustment/apply_test.go
+++ b/bidadjustment/apply_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 )
diff --git a/bidadjustment/build_rules.go b/bidadjustment/build_rules.go
index 019ad87e9cf..2d0ac7c4cd8 100644
--- a/bidadjustment/build_rules.go
+++ b/bidadjustment/build_rules.go
@@ -1,8 +1,8 @@
 package bidadjustment
 
 import (
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const (
diff --git a/bidadjustment/build_rules_test.go b/bidadjustment/build_rules_test.go
index 2c19932fec7..29864bcdbc2 100644
--- a/bidadjustment/build_rules_test.go
+++ b/bidadjustment/build_rules_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/bidadjustment/validate.go b/bidadjustment/validate.go
index f34ef48ba49..b5383b4d1b5 100644
--- a/bidadjustment/validate.go
+++ b/bidadjustment/validate.go
@@ -3,7 +3,7 @@ package bidadjustment
 import (
 	"math"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // Validate checks whether all provided bid adjustments are valid or not against the requirements defined in the issue
diff --git a/bidadjustment/validate_test.go b/bidadjustment/validate_test.go
index caf4188bb5e..dedcddc9af8 100644
--- a/bidadjustment/validate_test.go
+++ b/bidadjustment/validate_test.go
@@ -3,7 +3,7 @@ package bidadjustment
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/config/account.go b/config/account.go
index 80ce6d41dea..a54da82d212 100644
--- a/config/account.go
+++ b/config/account.go
@@ -7,8 +7,8 @@ import (
 	"strings"
 
 	"github.com/prebid/go-gdpr/consentconstants"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/iputil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/iputil"
 )
 
 // ChannelType enumerates the values of integrations Prebid Server can configure for an account
diff --git a/config/account_test.go b/config/account_test.go
index c529af09f15..97bb5bd0d3f 100644
--- a/config/account_test.go
+++ b/config/account_test.go
@@ -6,7 +6,7 @@ import (
 	"testing"
 
 	"github.com/prebid/go-gdpr/consentconstants"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/config/bidderinfo.go b/config/bidderinfo.go
index 6352728de5c..d553df1f4e5 100644
--- a/config/bidderinfo.go
+++ b/config/bidderinfo.go
@@ -9,8 +9,8 @@ import (
 	"strings"
 	"text/template"
 
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
 	validator "github.com/asaskevich/govalidator"
 	"gopkg.in/yaml.v3"
diff --git a/config/bidderinfo_test.go b/config/bidderinfo_test.go
index 3837cfed815..9ad64ee213f 100644
--- a/config/bidderinfo_test.go
+++ b/config/bidderinfo_test.go
@@ -7,8 +7,8 @@ import (
 
 	"gopkg.in/yaml.v3"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
diff --git a/config/compression.go b/config/compression.go
index 2fe8e7b22ac..c838e3390a2 100644
--- a/config/compression.go
+++ b/config/compression.go
@@ -1,6 +1,6 @@
 package config
 
-import "github.com/prebid/prebid-server/v2/util/httputil"
+import "github.com/prebid/prebid-server/v3/util/httputil"
 
 type Compression struct {
 	Request  CompressionInfo `mapstructure:"request"`
diff --git a/config/compression_test.go b/config/compression_test.go
index 230d1912345..78e7b6468e0 100644
--- a/config/compression_test.go
+++ b/config/compression_test.go
@@ -3,7 +3,7 @@ package config
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/util/httputil"
+	"github.com/prebid/prebid-server/v3/util/httputil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/config/config.go b/config/config.go
index bc1e17fbc29..30f8d69adc1 100644
--- a/config/config.go
+++ b/config/config.go
@@ -12,9 +12,9 @@ import (
 	"github.com/golang/glog"
 	"github.com/prebid/go-gdpr/consentconstants"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/spf13/viper"
 )
 
@@ -68,9 +68,9 @@ type Configuration struct {
 
 	VideoStoredRequestRequired bool `mapstructure:"video_stored_request_required"`
 
-	// Array of blacklisted apps that is used to create the hash table BlacklistedAppMap so App.ID's can be instantly accessed.
-	BlacklistedApps   []string `mapstructure:"blacklisted_apps,flow"`
-	BlacklistedAppMap map[string]bool
+	// Array of blocked apps that is used to create the hash table BlockedAppsLookup so App.ID's can be instantly accessed.
+	BlockedApps       []string `mapstructure:"blocked_apps,flow"`
+	BlockedAppsLookup map[string]bool
 	// Is publisher/account ID required to be submitted in the OpenRTB2 request
 	AccountRequired bool `mapstructure:"account_required"`
 	// AccountDefaults defines default settings for valid accounts that are partially defined
@@ -796,10 +796,10 @@ func New(v *viper.Viper, bidderInfos BidderInfos, normalizeBidderName openrtb_ex
 	}
 
 	// To look for a request's app_id in O(1) time, we fill this hash table located in the
-	// the BlacklistedApps field of the Configuration struct defined in this file
-	c.BlacklistedAppMap = make(map[string]bool)
-	for i := 0; i < len(c.BlacklistedApps); i++ {
-		c.BlacklistedAppMap[c.BlacklistedApps[i]] = true
+	// the BlockedApps field of the Configuration struct defined in this file
+	c.BlockedAppsLookup = make(map[string]bool)
+	for i := 0; i < len(c.BlockedApps); i++ {
+		c.BlockedAppsLookup[c.BlockedApps[i]] = true
 	}
 
 	// Migrate combo stored request config to separate stored_reqs and amp stored_reqs configs.
@@ -1148,8 +1148,7 @@ func SetupViper(v *viper.Viper, filename string, bidderInfos BidderInfos) {
 	v.SetDefault("default_request.type", "")
 	v.SetDefault("default_request.file.name", "")
 	v.SetDefault("default_request.alias_info", false)
-	v.SetDefault("blacklisted_apps", []string{""})
-	v.SetDefault("blacklisted_accts", []string{""})
+	v.SetDefault("blocked_apps", []string{""})
 	v.SetDefault("account_required", false)
 	v.SetDefault("account_defaults.disabled", false)
 	v.SetDefault("account_defaults.debug_allow", true)
diff --git a/config/config_test.go b/config/config_test.go
index 414f2635fd5..a68f478a642 100644
--- a/config/config_test.go
+++ b/config/config_test.go
@@ -10,8 +10,8 @@ import (
 	"time"
 
 	"github.com/prebid/go-gdpr/consentconstants"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/spf13/viper"
 	"github.com/stretchr/testify/assert"
 )
@@ -451,7 +451,7 @@ metrics:
     adapter_buyeruid_scrubbed: false
     adapter_gdpr_request_blocked: true
     account_modules_metrics: true
-blacklisted_apps: ["spamAppID","sketchy-app-id"]
+blocked_apps: ["spamAppID","sketchy-app-id"]
 account_required: true
 auto_gen_source_tid: false
 certificates_file: /etc/ssl/cert.pem
@@ -714,12 +714,12 @@ func TestFullConfig(t *testing.T) {
 	cmpBools(t, "lmt.enforce", true, cfg.LMT.Enforce)
 
 	//Assert the NonStandardPublishers was correctly unmarshalled
-	cmpStrings(t, "blacklisted_apps", "spamAppID", cfg.BlacklistedApps[0])
-	cmpStrings(t, "blacklisted_apps", "sketchy-app-id", cfg.BlacklistedApps[1])
+	cmpStrings(t, "blocked_apps", "spamAppID", cfg.BlockedApps[0])
+	cmpStrings(t, "blocked_apps", "sketchy-app-id", cfg.BlockedApps[1])
 
-	//Assert the BlacklistedAppMap hash table was built correctly
-	for i := 0; i < len(cfg.BlacklistedApps); i++ {
-		cmpBools(t, "cfg.BlacklistedAppMap", true, cfg.BlacklistedAppMap[cfg.BlacklistedApps[i]])
+	//Assert the BlockedAppsLookup hash table was built correctly
+	for i := 0; i < len(cfg.BlockedApps); i++ {
+		cmpBools(t, "cfg.BlockedAppsLookup", true, cfg.BlockedAppsLookup[cfg.BlockedApps[i]])
 	}
 
 	//Assert purpose VendorExceptionMap hash tables were built correctly
diff --git a/currency/currency.go b/currency/currency.go
index 060649f9c11..b4d886274e3 100644
--- a/currency/currency.go
+++ b/currency/currency.go
@@ -1,7 +1,7 @@
 package currency
 
 import (
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func GetAuctionCurrencyRates(currencyConverter *RateConverter, requestRates *openrtb_ext.ExtRequestCurrency) Conversions {
diff --git a/currency/currency_test.go b/currency/currency_test.go
index d462cc8bdab..e86ee4537fe 100644
--- a/currency/currency_test.go
+++ b/currency/currency_test.go
@@ -4,9 +4,9 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/currency/rate_converter.go b/currency/rate_converter.go
index 1dd18fabcb1..2e39b57f403 100644
--- a/currency/rate_converter.go
+++ b/currency/rate_converter.go
@@ -8,9 +8,9 @@ import (
 	"time"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/timeutil"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/timeutil"
 )
 
 // RateConverter holds the currencies conversion rates dictionary
diff --git a/currency/rate_converter_test.go b/currency/rate_converter_test.go
index 96003c7d986..95049916194 100644
--- a/currency/rate_converter_test.go
+++ b/currency/rate_converter_test.go
@@ -9,7 +9,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/util/task"
+	"github.com/prebid/prebid-server/v3/util/task"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/currency/rates_test.go b/currency/rates_test.go
index 254bc282dec..6fb444f32c4 100644
--- a/currency/rates_test.go
+++ b/currency/rates_test.go
@@ -6,7 +6,7 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 func TestUnMarshallRates(t *testing.T) {
diff --git a/currency/validation.go b/currency/validation.go
index d6429c357b6..5e23362e5b1 100644
--- a/currency/validation.go
+++ b/currency/validation.go
@@ -5,8 +5,8 @@ import (
 
 	"golang.org/x/text/currency"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // ValidateCustomRates throws a bad input error if any of the 3-digit currency codes found in
diff --git a/currency/validation_test.go b/currency/validation_test.go
index 65f93a5f9e9..0edd5c89a34 100644
--- a/currency/validation_test.go
+++ b/currency/validation_test.go
@@ -3,8 +3,8 @@ package currency
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/dsa/validate.go b/dsa/validate.go
index 034dae8b3cf..3dce2fba1c1 100644
--- a/dsa/validate.go
+++ b/dsa/validate.go
@@ -3,9 +3,9 @@ package dsa
 import (
 	"errors"
 
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // Required values representing whether a DSA object is required
diff --git a/dsa/validate_test.go b/dsa/validate_test.go
index 9dfa32c6efe..e0af9bc80af 100644
--- a/dsa/validate_test.go
+++ b/dsa/validate_test.go
@@ -6,9 +6,9 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/dsa/writer.go b/dsa/writer.go
index 9cf276de216..33d0bda6d39 100644
--- a/dsa/writer.go
+++ b/dsa/writer.go
@@ -1,8 +1,8 @@
 package dsa
 
 import (
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // Writer is used to write the default DSA to the request (req.regs.ext.dsa)
diff --git a/dsa/writer_test.go b/dsa/writer_test.go
index 7f5305121d6..bbe82e0b693 100644
--- a/dsa/writer_test.go
+++ b/dsa/writer_test.go
@@ -5,9 +5,9 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/endpoints/cookie_sync.go b/endpoints/cookie_sync.go
index d6e0b31a096..51fe8d57514 100644
--- a/endpoints/cookie_sync.go
+++ b/endpoints/cookie_sync.go
@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"math"
 	"net/http"
 	"strconv"
 	"strings"
@@ -15,22 +16,22 @@ import (
 	"github.com/julienschmidt/httprouter"
 	gpplib "github.com/prebid/go-gpp"
 	gppConstants "github.com/prebid/go-gpp/constants"
-	accountService "github.com/prebid/prebid-server/v2/account"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/privacy/ccpa"
-	gppPrivacy "github.com/prebid/prebid-server/v2/privacy/gpp"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/usersync"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	stringutil "github.com/prebid/prebid-server/v2/util/stringutil"
-	"github.com/prebid/prebid-server/v2/util/timeutil"
+	accountService "github.com/prebid/prebid-server/v3/account"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/privacy/ccpa"
+	gppPrivacy "github.com/prebid/prebid-server/v3/privacy/gpp"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/usersync"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	stringutil "github.com/prebid/prebid-server/v3/util/stringutil"
+	"github.com/prebid/prebid-server/v3/util/timeutil"
 )
 
 const receiveCookieDeprecation = "receive-cookie-deprecation"
@@ -174,6 +175,11 @@ func (c *cookieSyncEndpoint) parseRequest(r *http.Request) (usersync.Request, ma
 	tcf2Cfg := c.privacyConfig.tcf2ConfigBuilder(c.privacyConfig.gdprConfig.TCF2, account.GDPR)
 	gdprPerms := c.privacyConfig.gdprPermissionsBuilder(tcf2Cfg, gdprRequestInfo)
 
+	limit := math.MaxInt
+	if request.Limit != nil {
+		limit = *request.Limit
+	}
+
 	rx := usersync.Request{
 		Bidders: request.Bidders,
 		Cooperative: usersync.Cooperative{
@@ -181,7 +187,7 @@ func (c *cookieSyncEndpoint) parseRequest(r *http.Request) (usersync.Request, ma
 			PriorityGroups: c.config.UserSync.PriorityGroups,
 		},
 		Debug: request.Debug,
-		Limit: request.Limit,
+		Limit: limit,
 		Privacy: usersyncPrivacy{
 			gdprPermissions:  gdprPerms,
 			ccpaParsedPolicy: ccpaParsedPolicy,
@@ -285,17 +291,38 @@ func (c *cookieSyncEndpoint) writeParseRequestErrorMetrics(err error) {
 }
 
 func (c *cookieSyncEndpoint) setLimit(request cookieSyncRequest, cookieSyncConfig config.CookieSync) cookieSyncRequest {
-	if request.Limit <= 0 && cookieSyncConfig.DefaultLimit != nil {
-		request.Limit = *cookieSyncConfig.DefaultLimit
+	limit := getEffectiveLimit(request.Limit, cookieSyncConfig.DefaultLimit)
+	maxLimit := getEffectiveMaxLimit(cookieSyncConfig.MaxLimit)
+	if maxLimit < limit {
+		request.Limit = &maxLimit
+	} else {
+		request.Limit = &limit
 	}
-	if cookieSyncConfig.MaxLimit != nil && (request.Limit <= 0 || request.Limit > *cookieSyncConfig.MaxLimit) {
-		request.Limit = *cookieSyncConfig.MaxLimit
+	return request
+}
+
+func getEffectiveLimit(reqLimit *int, defaultLimit *int) int {
+	limit := reqLimit
+
+	if limit == nil {
+		limit = defaultLimit
 	}
-	if request.Limit < 0 {
-		request.Limit = 0
+
+	if limit != nil && *limit > 0 {
+		return *limit
 	}
 
-	return request
+	return math.MaxInt
+}
+
+func getEffectiveMaxLimit(maxLimit *int) int {
+	limit := maxLimit
+
+	if limit != nil && *limit > 0 {
+		return *limit
+	}
+
+	return math.MaxInt
 }
 
 func (c *cookieSyncEndpoint) setCooperativeSync(request cookieSyncRequest, cookieSyncConfig config.CookieSync) cookieSyncRequest {
@@ -402,8 +429,8 @@ func (c *cookieSyncEndpoint) writeSyncerMetrics(biddersEvaluated []usersync.Bidd
 			c.metrics.RecordSyncerRequest(bidder.SyncerKey, metrics.SyncerCookieSyncPrivacyBlocked)
 		case usersync.StatusAlreadySynced:
 			c.metrics.RecordSyncerRequest(bidder.SyncerKey, metrics.SyncerCookieSyncAlreadySynced)
-		case usersync.StatusTypeNotSupported:
-			c.metrics.RecordSyncerRequest(bidder.SyncerKey, metrics.SyncerCookieSyncTypeNotSupported)
+		case usersync.StatusRejectedByFilter:
+			c.metrics.RecordSyncerRequest(bidder.SyncerKey, metrics.SyncerCookieSyncRejectedByFilter)
 		}
 	}
 }
@@ -524,8 +551,8 @@ func getDebugMessage(status usersync.Status) string {
 		return "Unsupported bidder"
 	case usersync.StatusUnconfiguredBidder:
 		return "No sync config"
-	case usersync.StatusTypeNotSupported:
-		return "Type not supported"
+	case usersync.StatusRejectedByFilter:
+		return "Rejected by request filter"
 	case usersync.StatusBlockedByDisabledUsersync:
 		return "Sync disabled by config"
 	}
@@ -537,7 +564,7 @@ type cookieSyncRequest struct {
 	GDPR            *int                             `json:"gdpr"`
 	GDPRConsent     string                           `json:"gdpr_consent"`
 	USPrivacy       string                           `json:"us_privacy"`
-	Limit           int                              `json:"limit"`
+	Limit           *int                             `json:"limit"`
 	GPP             string                           `json:"gpp"`
 	GPPSID          string                           `json:"gpp_sid"`
 	CooperativeSync *bool                            `json:"coopSync"`
diff --git a/endpoints/cookie_sync_test.go b/endpoints/cookie_sync_test.go
index d00c8211993..e1a7a1d8e14 100644
--- a/endpoints/cookie_sync_test.go
+++ b/endpoints/cookie_sync_test.go
@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"math"
 	"net/http"
 	"net/http/httptest"
 	"strconv"
@@ -14,17 +15,17 @@ import (
 	"testing/iotest"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/privacy/ccpa"
-	"github.com/prebid/prebid-server/v2/usersync"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/privacy/ccpa"
+	"github.com/prebid/prebid-server/v3/usersync"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 )
@@ -692,6 +693,7 @@ func TestCookieSyncParseRequest(t *testing.T) {
 			givenCCPAEnabled: true,
 			expectedPrivacy:  macros.UserSyncPrivacy{},
 			expectedRequest: usersync.Request{
+				Limit: math.MaxInt,
 				Privacy: usersyncPrivacy{
 					gdprPermissions: &fakePermissions{},
 					activityRequest: emptyActivityPoliciesRequest,
@@ -720,6 +722,7 @@ func TestCookieSyncParseRequest(t *testing.T) {
 					Enabled:        true,
 					PriorityGroups: [][]string{{"a", "b", "c"}},
 				},
+				Limit: math.MaxInt,
 				Privacy: usersyncPrivacy{
 					gdprPermissions: &fakePermissions{},
 					activityRequest: emptyActivityPoliciesRequest,
@@ -748,6 +751,7 @@ func TestCookieSyncParseRequest(t *testing.T) {
 					Enabled:        false,
 					PriorityGroups: [][]string{{"a", "b", "c"}},
 				},
+				Limit: math.MaxInt,
 				Privacy: usersyncPrivacy{
 					gdprPermissions: &fakePermissions{},
 					activityRequest: emptyActivityPoliciesRequest,
@@ -776,6 +780,7 @@ func TestCookieSyncParseRequest(t *testing.T) {
 					Enabled:        false,
 					PriorityGroups: [][]string{{"a", "b", "c"}},
 				},
+				Limit: math.MaxInt,
 				Privacy: usersyncPrivacy{
 					gdprPermissions: &fakePermissions{},
 					activityRequest: emptyActivityPoliciesRequest,
@@ -804,6 +809,7 @@ func TestCookieSyncParseRequest(t *testing.T) {
 					Enabled:        false,
 					PriorityGroups: [][]string{{"a", "b", "c"}},
 				},
+				Limit: math.MaxInt,
 				Privacy: usersyncPrivacy{
 					gdprPermissions: &fakePermissions{},
 					activityRequest: emptyActivityPoliciesRequest,
@@ -832,6 +838,7 @@ func TestCookieSyncParseRequest(t *testing.T) {
 					Enabled:        true,
 					PriorityGroups: [][]string{{"a", "b", "c"}},
 				},
+				Limit: math.MaxInt,
 				Privacy: usersyncPrivacy{
 					gdprPermissions: &fakePermissions{},
 					activityRequest: emptyActivityPoliciesRequest,
@@ -860,6 +867,7 @@ func TestCookieSyncParseRequest(t *testing.T) {
 					Enabled:        true,
 					PriorityGroups: [][]string{{"a", "b", "c"}},
 				},
+				Limit: math.MaxInt,
 				Privacy: usersyncPrivacy{
 					gdprPermissions: &fakePermissions{},
 					activityRequest: emptyActivityPoliciesRequest,
@@ -878,6 +886,7 @@ func TestCookieSyncParseRequest(t *testing.T) {
 			givenCCPAEnabled: true,
 			expectedPrivacy:  macros.UserSyncPrivacy{},
 			expectedRequest: usersync.Request{
+				Limit: math.MaxInt,
 				Privacy: usersyncPrivacy{
 					gdprPermissions: &fakePermissions{},
 					activityRequest: emptyActivityPoliciesRequest,
@@ -898,6 +907,7 @@ func TestCookieSyncParseRequest(t *testing.T) {
 				USPrivacy: "1NYN",
 			},
 			expectedRequest: usersync.Request{
+				Limit: math.MaxInt,
 				Privacy: usersyncPrivacy{
 					gdprPermissions: &fakePermissions{},
 					activityRequest: emptyActivityPoliciesRequest,
@@ -939,6 +949,7 @@ func TestCookieSyncParseRequest(t *testing.T) {
 				GDPR: "0",
 			},
 			expectedRequest: usersync.Request{
+				Limit: math.MaxInt,
 				Privacy: usersyncPrivacy{
 					gdprPermissions: &fakePermissions{},
 					activityRequest: emptyActivityPoliciesRequest,
@@ -966,6 +977,7 @@ func TestCookieSyncParseRequest(t *testing.T) {
 				GDPR: "",
 			},
 			expectedRequest: usersync.Request{
+				Limit: math.MaxInt,
 				Privacy: usersyncPrivacy{
 					gdprPermissions: &fakePermissions{},
 					activityRequest: emptyActivityPoliciesRequest,
@@ -1135,152 +1147,242 @@ func TestCookieSyncParseRequest(t *testing.T) {
 	}
 }
 
-func TestSetLimit(t *testing.T) {
-	intNegative1 := -1
-	int20 := 20
-	int30 := 30
-	int40 := 40
+func TestGetEffectiveLimit(t *testing.T) {
+	intNegative := ptrutil.ToPtr(-1)
+	int0 := ptrutil.ToPtr(0)
+	int30 := ptrutil.ToPtr(30)
+	int40 := ptrutil.ToPtr(40)
+	intMax := ptrutil.ToPtr(math.MaxInt)
 
-	testCases := []struct {
-		description     string
-		givenRequest    cookieSyncRequest
-		givenAccount    *config.Account
-		expectedRequest cookieSyncRequest
+	tests := []struct {
+		name          string
+		reqLimit      *int
+		defaultLimit  *int
+		expectedLimit int
 	}{
 		{
-			description: "Default Limit is Applied (request limit = 0)",
-			givenRequest: cookieSyncRequest{
-				Limit: 0,
-			},
-			givenAccount: &config.Account{
-				CookieSync: config.CookieSync{
-					DefaultLimit: &int20,
-				},
-			},
-			expectedRequest: cookieSyncRequest{
-				Limit: 20,
-			},
+			name:          "nil",
+			reqLimit:      nil,
+			defaultLimit:  nil,
+			expectedLimit: math.MaxInt,
 		},
 		{
-			description: "Default Limit is Not Applied (default limit not set)",
-			givenRequest: cookieSyncRequest{
-				Limit: 0,
-			},
-			givenAccount: &config.Account{
-				CookieSync: config.CookieSync{
-					DefaultLimit: nil,
-				},
-			},
-			expectedRequest: cookieSyncRequest{
-				Limit: 0,
-			},
+			name:          "req_limit_negative",
+			reqLimit:      intNegative,
+			defaultLimit:  nil,
+			expectedLimit: math.MaxInt,
 		},
 		{
-			description: "Default Limit is Not Applied (request limit > 0)",
-			givenRequest: cookieSyncRequest{
-				Limit: 10,
-			},
-			givenAccount: &config.Account{
-				CookieSync: config.CookieSync{
-					DefaultLimit: &int20,
-				},
-			},
-			expectedRequest: cookieSyncRequest{
-				Limit: 10,
-			},
+			name:          "req_limit_zero",
+			reqLimit:      int0,
+			defaultLimit:  nil,
+			expectedLimit: math.MaxInt,
+		},
+		{
+			name:          "req_limit_in_range",
+			reqLimit:      int30,
+			defaultLimit:  nil,
+			expectedLimit: 30,
+		},
+		{
+			name:          "req_limit_at_max",
+			reqLimit:      intMax,
+			defaultLimit:  nil,
+			expectedLimit: math.MaxInt,
+		},
+		{
+			name:          "default_limit_negative",
+			reqLimit:      nil,
+			defaultLimit:  intNegative,
+			expectedLimit: math.MaxInt,
+		},
+		{
+			name:          "default_limit_zero",
+			reqLimit:      nil,
+			defaultLimit:  intNegative,
+			expectedLimit: math.MaxInt,
+		},
+		{
+			name:          "default_limit_in_range",
+			reqLimit:      nil,
+			defaultLimit:  int30,
+			expectedLimit: 30,
+		},
+		{
+			name:          "default_limit_at_max",
+			reqLimit:      nil,
+			defaultLimit:  intMax,
+			expectedLimit: math.MaxInt,
+		},
+		{
+			name:          "both_in_range",
+			reqLimit:      int30,
+			defaultLimit:  int40,
+			expectedLimit: 30,
 		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			result := getEffectiveLimit(test.reqLimit, test.defaultLimit)
+			assert.Equal(t, test.expectedLimit, result)
+		})
+	}
+}
+
+func TestGetEffectiveMaxLimit(t *testing.T) {
+	intNegative := ptrutil.ToPtr(-1)
+	int0 := ptrutil.ToPtr(0)
+	int30 := ptrutil.ToPtr(30)
+	intMax := ptrutil.ToPtr(math.MaxInt)
+
+	tests := []struct {
+		name          string
+		maxLimit      *int
+		expectedLimit int
+	}{
+		{
+			name:          "nil",
+			maxLimit:      nil,
+			expectedLimit: math.MaxInt,
+		},
+		{
+			name:          "req_limit_negative",
+			maxLimit:      intNegative,
+			expectedLimit: math.MaxInt,
+		},
+		{
+			name:          "req_limit_zero",
+			maxLimit:      int0,
+			expectedLimit: math.MaxInt,
+		},
+		{
+			name:          "req_limit_in_range",
+			maxLimit:      int30,
+			expectedLimit: 30,
+		},
+		{
+			name:          "req_limit_too_large",
+			maxLimit:      intMax,
+			expectedLimit: math.MaxInt,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			result := getEffectiveMaxLimit(test.maxLimit)
+			assert.Equal(t, test.expectedLimit, result)
+		})
+	}
+}
+
+func TestSetLimit(t *testing.T) {
+	intNegative := ptrutil.ToPtr(-1)
+	int0 := ptrutil.ToPtr(0)
+	int10 := ptrutil.ToPtr(10)
+	int20 := ptrutil.ToPtr(20)
+	int30 := ptrutil.ToPtr(30)
+	intMax := ptrutil.ToPtr(math.MaxInt)
+
+	tests := []struct {
+		name            string
+		givenRequest    cookieSyncRequest
+		givenAccount    *config.Account
+		expectedRequest cookieSyncRequest
+	}{
 		{
-			description: "Max Limit is Applied (request limit <= 0)",
+			name: "nil_limits",
 			givenRequest: cookieSyncRequest{
-				Limit: 0,
+				Limit: nil,
 			},
 			givenAccount: &config.Account{
 				CookieSync: config.CookieSync{
-					MaxLimit: &int30,
+					DefaultLimit: nil,
+					MaxLimit:     nil,
 				},
 			},
 			expectedRequest: cookieSyncRequest{
-				Limit: 30,
+				Limit: intMax,
 			},
 		},
 		{
-			description: "Max Limit is Applied (0 < max < limit)",
+			name: "limit_negative",
 			givenRequest: cookieSyncRequest{
-				Limit: 40,
+				Limit: intNegative,
 			},
 			givenAccount: &config.Account{
 				CookieSync: config.CookieSync{
-					MaxLimit: &int30,
+					DefaultLimit: int20,
 				},
 			},
 			expectedRequest: cookieSyncRequest{
-				Limit: 30,
+				Limit: intMax,
 			},
 		},
 		{
-			description: "Max Limit is Not Applied (max not set)",
+			name: "limit_zero",
 			givenRequest: cookieSyncRequest{
-				Limit: 10,
+				Limit: int0,
 			},
 			givenAccount: &config.Account{
 				CookieSync: config.CookieSync{
-					MaxLimit: nil,
+					DefaultLimit: int20,
 				},
 			},
 			expectedRequest: cookieSyncRequest{
-				Limit: 10,
+				Limit: intMax,
 			},
 		},
 		{
-			description: "Max Limit is Not Applied (0 < limit < max)",
+			name: "limit_less_than_max",
 			givenRequest: cookieSyncRequest{
-				Limit: 10,
+				Limit: int10,
 			},
 			givenAccount: &config.Account{
 				CookieSync: config.CookieSync{
-					MaxLimit: &int30,
+					DefaultLimit: int20,
+					MaxLimit:     int30,
 				},
 			},
 			expectedRequest: cookieSyncRequest{
-				Limit: 10,
+				Limit: int10,
 			},
 		},
 		{
-			description: "Max Limit is Applied After applying the default",
+			name: "limit_greater_than_max",
 			givenRequest: cookieSyncRequest{
-				Limit: 0,
+				Limit: int30,
 			},
 			givenAccount: &config.Account{
 				CookieSync: config.CookieSync{
-					DefaultLimit: &int40,
-					MaxLimit:     &int30,
+					DefaultLimit: int20,
+					MaxLimit:     int10,
 				},
 			},
 			expectedRequest: cookieSyncRequest{
-				Limit: 30,
+				Limit: int10,
 			},
 		},
 		{
-			description: "Negative Value Check",
+			name: "limit_at_max",
 			givenRequest: cookieSyncRequest{
-				Limit: 0,
+				Limit: intMax,
 			},
 			givenAccount: &config.Account{
-				CookieSync: config.CookieSync{
-					DefaultLimit: &intNegative1,
-					MaxLimit:     &intNegative1,
-				},
+				CookieSync: config.CookieSync{},
 			},
 			expectedRequest: cookieSyncRequest{
-				Limit: 0,
+				Limit: intMax,
 			},
 		},
 	}
 
-	for _, test := range testCases {
-		endpoint := cookieSyncEndpoint{}
-		request := endpoint.setLimit(test.givenRequest, test.givenAccount.CookieSync)
-		assert.Equal(t, test.expectedRequest, request, test.description)
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			endpoint := cookieSyncEndpoint{}
+			request := endpoint.setLimit(test.givenRequest, test.givenAccount.CookieSync)
+			assert.Equal(t, test.expectedRequest, request)
+		})
 	}
 }
 
@@ -1642,10 +1744,10 @@ func TestCookieSyncWriteBidderMetrics(t *testing.T) {
 			},
 		},
 		{
-			description: "One - Type Not Supported",
-			given:       []usersync.BidderEvaluation{{Bidder: "a", SyncerKey: "aSyncer", Status: usersync.StatusTypeNotSupported}},
+			description: "One - Rejected By Filter",
+			given:       []usersync.BidderEvaluation{{Bidder: "a", SyncerKey: "aSyncer", Status: usersync.StatusRejectedByFilter}},
 			setExpectations: func(m *metrics.MetricsEngineMock) {
-				m.On("RecordSyncerRequest", "aSyncer", metrics.SyncerCookieSyncTypeNotSupported).Once()
+				m.On("RecordSyncerRequest", "aSyncer", metrics.SyncerCookieSyncRejectedByFilter).Once()
 			},
 		},
 		{
@@ -1699,7 +1801,7 @@ func TestCookieSyncHandleResponse(t *testing.T) {
 		{Bidder: "Bidder2", Status: usersync.StatusUnknownBidder},
 		{Bidder: "Bidder3", Status: usersync.StatusUnconfiguredBidder},
 		{Bidder: "Bidder4", Status: usersync.StatusBlockedByPrivacy},
-		{Bidder: "Bidder5", Status: usersync.StatusTypeNotSupported},
+		{Bidder: "Bidder5", Status: usersync.StatusRejectedByFilter},
 		{Bidder: "Bidder6", Status: usersync.StatusBlockedByUserOptOut},
 		{Bidder: "Bidder7", Status: usersync.StatusBlockedByDisabledUsersync},
 		{Bidder: "BidderA", Status: usersync.StatusDuplicate, SyncerKey: "syncerB"},
@@ -1792,7 +1894,7 @@ func TestCookieSyncHandleResponse(t *testing.T) {
 			givenCookieHasSyncs: true,
 			givenDebug:          true,
 			givenSyncersChosen:  []usersync.SyncerChoice{},
-			expectedJSON:        `{"status":"ok","bidder_status":[],"debug":[{"bidder":"Bidder1","error":"Already in sync"},{"bidder":"Bidder2","error":"Unsupported bidder"},{"bidder":"Bidder3","error":"No sync config"},{"bidder":"Bidder4","error":"Rejected by privacy"},{"bidder":"Bidder5","error":"Type not supported"},{"bidder":"Bidder6","error":"Status blocked by user opt out"},{"bidder":"Bidder7","error":"Sync disabled by config"},{"bidder":"BidderA","error":"Duplicate bidder synced as syncerB"}]}` + "\n",
+			expectedJSON:        `{"status":"ok","bidder_status":[],"debug":[{"bidder":"Bidder1","error":"Already in sync"},{"bidder":"Bidder2","error":"Unsupported bidder"},{"bidder":"Bidder3","error":"No sync config"},{"bidder":"Bidder4","error":"Rejected by privacy"},{"bidder":"Bidder5","error":"Rejected by request filter"},{"bidder":"Bidder6","error":"Status blocked by user opt out"},{"bidder":"Bidder7","error":"Sync disabled by config"},{"bidder":"BidderA","error":"Duplicate bidder synced as syncerB"}]}` + "\n",
 			expectedAnalytics:   analytics.CookieSyncObject{Status: 200, BidderStatus: []*analytics.CookieSyncBidder{}},
 		},
 	}
diff --git a/endpoints/currency_rates.go b/endpoints/currency_rates.go
index f08154471fe..9d27fb2497d 100644
--- a/endpoints/currency_rates.go
+++ b/endpoints/currency_rates.go
@@ -5,8 +5,8 @@ import (
 	"time"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // currencyRatesInfo holds currency rates information.
diff --git a/endpoints/currency_rates_test.go b/endpoints/currency_rates_test.go
index 0b953c640e2..00da093a2d5 100644
--- a/endpoints/currency_rates_test.go
+++ b/endpoints/currency_rates_test.go
@@ -7,7 +7,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/currency"
+	"github.com/prebid/prebid-server/v3/currency"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/endpoints/events/account_test.go b/endpoints/events/account_test.go
index d19a3912f59..b379621b061 100644
--- a/endpoints/events/account_test.go
+++ b/endpoints/events/account_test.go
@@ -9,10 +9,10 @@ import (
 	"testing"
 
 	"github.com/julienschmidt/httprouter"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/stored_requests"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/stored_requests"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
diff --git a/endpoints/events/event.go b/endpoints/events/event.go
index e202932aff8..fa2fca2f96c 100644
--- a/endpoints/events/event.go
+++ b/endpoints/events/event.go
@@ -10,17 +10,17 @@ import (
 	"time"
 	"unicode"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
 	"github.com/julienschmidt/httprouter"
-	accountService "github.com/prebid/prebid-server/v2/account"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/util/httputil"
+	accountService "github.com/prebid/prebid-server/v3/account"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/util/httputil"
 )
 
 const (
@@ -216,7 +216,7 @@ func HandleAccountServiceErrors(errs []error) (status int, messages []string) {
 
 		errCode := errortypes.ReadCode(er)
 
-		if errCode == errortypes.BlacklistedAppErrorCode || errCode == errortypes.AccountDisabledErrorCode {
+		if errCode == errortypes.BlockedAppErrorCode || errCode == errortypes.AccountDisabledErrorCode {
 			status = http.StatusServiceUnavailable
 		}
 		if errCode == errortypes.MalformedAcctErrorCode {
diff --git a/endpoints/events/event_test.go b/endpoints/events/event_test.go
index 1e07bafbc83..eb52d8c1287 100644
--- a/endpoints/events/event_test.go
+++ b/endpoints/events/event_test.go
@@ -12,12 +12,12 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/stored_requests"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/stored_requests"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/endpoints/events/vtrack.go b/endpoints/events/vtrack.go
index bb479f2a919..590243bb5c2 100644
--- a/endpoints/events/vtrack.go
+++ b/endpoints/events/vtrack.go
@@ -11,15 +11,15 @@ import (
 
 	"github.com/golang/glog"
 	"github.com/julienschmidt/httprouter"
-	accountService "github.com/prebid/prebid-server/v2/account"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/prebid_cache_client"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	accountService "github.com/prebid/prebid-server/v3/account"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/prebid_cache_client"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
diff --git a/endpoints/events/vtrack_test.go b/endpoints/events/vtrack_test.go
index 695ba87aa5f..1345d563db5 100644
--- a/endpoints/events/vtrack_test.go
+++ b/endpoints/events/vtrack_test.go
@@ -12,11 +12,11 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/prebid_cache_client"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/prebid_cache_client"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/endpoints/getuids.go b/endpoints/getuids.go
index ea87ce70568..dac114da227 100644
--- a/endpoints/getuids.go
+++ b/endpoints/getuids.go
@@ -4,8 +4,8 @@ import (
 	"net/http"
 
 	"github.com/julienschmidt/httprouter"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/usersync"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/usersync"
 
 	"encoding/json"
 )
diff --git a/endpoints/getuids_test.go b/endpoints/getuids_test.go
index c496d3e270b..1092c51f79f 100644
--- a/endpoints/getuids_test.go
+++ b/endpoints/getuids_test.go
@@ -5,7 +5,7 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/endpoints/info/bidders.go b/endpoints/info/bidders.go
index 7cbad5e26f6..163f6cee5bd 100644
--- a/endpoints/info/bidders.go
+++ b/endpoints/info/bidders.go
@@ -7,16 +7,16 @@ import (
 
 	"github.com/golang/glog"
 	"github.com/julienschmidt/httprouter"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 var invalidEnabledOnlyMsg = []byte(`Invalid value for 'enabledonly' query param, must be of boolean type`)
 var invalidBaseAdaptersOnlyMsg = []byte(`Invalid value for 'baseadaptersonly' query param, must be of boolean type`)
 
 // NewBiddersEndpoint builds a handler for the /info/bidders endpoint.
-func NewBiddersEndpoint(bidders config.BidderInfos, aliases map[string]string) httprouter.Handle {
-	responseAll, err := prepareBiddersResponseAll(bidders, aliases)
+func NewBiddersEndpoint(bidders config.BidderInfos) httprouter.Handle {
+	responseAll, err := prepareBiddersResponseAll(bidders)
 	if err != nil {
 		glog.Fatalf("error creating /info/bidders endpoint all bidders response: %v", err)
 	}
@@ -26,7 +26,7 @@ func NewBiddersEndpoint(bidders config.BidderInfos, aliases map[string]string) h
 		glog.Fatalf("error creating /info/bidders endpoint all bidders (base adapters only) response: %v", err)
 	}
 
-	responseEnabledOnly, err := prepareBiddersResponseEnabledOnly(bidders, aliases)
+	responseEnabledOnly, err := prepareBiddersResponseEnabledOnly(bidders)
 	if err != nil {
 		glog.Fatalf("error creating /info/bidders endpoint enabled only response: %v", err)
 	}
@@ -76,7 +76,6 @@ func readQueryFlag(r *http.Request, queryParam string) (flag, ok bool) {
 	q := r.URL.Query()
 
 	v, exists := q[queryParam]
-
 	if !exists || len(v) == 0 {
 		return false, true
 	}
@@ -91,26 +90,13 @@ func readQueryFlag(r *http.Request, queryParam string) (flag, ok bool) {
 	}
 }
 
-func prepareBiddersResponseAll(bidders config.BidderInfos, aliases map[string]string) ([]byte, error) {
-	bidderNames := make([]string, 0, len(bidders)+len(aliases))
-
-	for name := range bidders {
-		bidderNames = append(bidderNames, name)
-	}
-
-	for name := range aliases {
-		bidderNames = append(bidderNames, name)
-	}
-
-	sort.Strings(bidderNames)
-	return jsonutil.Marshal(bidderNames)
-}
+type bidderPredicate func(config.BidderInfo) bool
 
-func prepareBiddersResponseAllBaseOnly(bidders config.BidderInfos) ([]byte, error) {
+func prepareResponse(bidders config.BidderInfos, p bidderPredicate) ([]byte, error) {
 	bidderNames := make([]string, 0, len(bidders))
 
 	for name, info := range bidders {
-		if len(info.AliasOf) == 0 {
+		if p(info) {
 			bidderNames = append(bidderNames, name)
 		}
 	}
@@ -119,36 +105,24 @@ func prepareBiddersResponseAllBaseOnly(bidders config.BidderInfos) ([]byte, erro
 	return jsonutil.Marshal(bidderNames)
 }
 
-func prepareBiddersResponseEnabledOnly(bidders config.BidderInfos, aliases map[string]string) ([]byte, error) {
-	bidderNames := make([]string, 0, len(bidders)+len(aliases))
-
-	for name, info := range bidders {
-		if info.IsEnabled() {
-			bidderNames = append(bidderNames, name)
-		}
-	}
+func prepareBiddersResponseAll(bidders config.BidderInfos) ([]byte, error) {
+	filterNone := func(_ config.BidderInfo) bool { return true }
+	return prepareResponse(bidders, filterNone)
+}
 
-	for name, bidder := range aliases {
-		if info, ok := bidders[bidder]; ok && info.IsEnabled() {
-			bidderNames = append(bidderNames, name)
-		}
-	}
+func prepareBiddersResponseAllBaseOnly(bidders config.BidderInfos) ([]byte, error) {
+	filterBaseOnly := func(info config.BidderInfo) bool { return len(info.AliasOf) == 0 }
+	return prepareResponse(bidders, filterBaseOnly)
+}
 
-	sort.Strings(bidderNames)
-	return jsonutil.Marshal(bidderNames)
+func prepareBiddersResponseEnabledOnly(bidders config.BidderInfos) ([]byte, error) {
+	filterEnabledOnly := func(info config.BidderInfo) bool { return info.IsEnabled() }
+	return prepareResponse(bidders, filterEnabledOnly)
 }
 
 func prepareBiddersResponseEnabledOnlyBaseOnly(bidders config.BidderInfos) ([]byte, error) {
-	bidderNames := make([]string, 0, len(bidders))
-
-	for name, info := range bidders {
-		if info.IsEnabled() && len(info.AliasOf) == 0 {
-			bidderNames = append(bidderNames, name)
-		}
-	}
-
-	sort.Strings(bidderNames)
-	return jsonutil.Marshal(bidderNames)
+	filterEnabledOnlyBaseOnly := func(info config.BidderInfo) bool { return info.IsEnabled() && len(info.AliasOf) == 0 }
+	return prepareResponse(bidders, filterEnabledOnlyBaseOnly)
 }
 
 func writeBadRequest(w http.ResponseWriter, data []byte) {
diff --git a/endpoints/info/bidders_detail.go b/endpoints/info/bidders_detail.go
index fbc9ab43486..fb9ce252167 100644
--- a/endpoints/info/bidders_detail.go
+++ b/endpoints/info/bidders_detail.go
@@ -8,9 +8,9 @@ import (
 
 	"github.com/golang/glog"
 	"github.com/julienschmidt/httprouter"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
@@ -19,20 +19,21 @@ const (
 )
 
 // NewBiddersDetailEndpoint builds a handler for the /info/bidders/<bidder> endpoint.
-func NewBiddersDetailEndpoint(bidders config.BidderInfos, aliases map[string]string) httprouter.Handle {
-	responses, err := prepareBiddersDetailResponse(bidders, aliases)
+func NewBiddersDetailEndpoint(bidders config.BidderInfos) httprouter.Handle {
+	responses, err := prepareBiddersDetailResponse(bidders)
 	if err != nil {
 		glog.Fatalf("error creating /info/bidders/<bidder> endpoint response: %v", err)
 	}
 
 	return func(w http.ResponseWriter, _ *http.Request, ps httprouter.Params) {
 		bidder := ps.ByName("bidderName")
+		bidderName, found := getNormalizedBidderName(bidder)
 
-		coreBidderName, found := getNormalisedBidderName(bidder, aliases)
 		if !found {
 			w.WriteHeader(http.StatusNotFound)
 		}
-		if response, ok := responses[coreBidderName]; ok {
+
+		if response, ok := responses[bidderName]; ok {
 			w.Header().Set("Content-Type", "application/json")
 			if _, err := w.Write(response); err != nil {
 				glog.Errorf("error writing response to /info/bidders/%s: %v", bidder, err)
@@ -43,25 +44,21 @@ func NewBiddersDetailEndpoint(bidders config.BidderInfos, aliases map[string]str
 	}
 }
 
-func getNormalisedBidderName(bidderName string, aliases map[string]string) (string, bool) {
+func getNormalizedBidderName(bidderName string) (string, bool) {
 	if strings.ToLower(bidderName) == "all" {
 		return "all", true
 	}
-	coreBidderName, ok := openrtb_ext.NormalizeBidderName(bidderName)
-	if !ok { //check default aliases if not found in coreBidders
-		if _, isDefaultAlias := aliases[bidderName]; isDefaultAlias {
-			return bidderName, true
-		}
+
+	bidderNameNormalized, ok := openrtb_ext.NormalizeBidderName(bidderName)
+	if !ok {
 		return "", false
 	}
-	return coreBidderName.String(), true
+
+	return bidderNameNormalized.String(), true
 }
 
-func prepareBiddersDetailResponse(bidders config.BidderInfos, aliases map[string]string) (map[string][]byte, error) {
-	details, err := mapDetails(bidders, aliases)
-	if err != nil {
-		return nil, err
-	}
+func prepareBiddersDetailResponse(bidders config.BidderInfos) (map[string][]byte, error) {
+	details := mapDetails(bidders)
 
 	responses, err := marshalDetailsResponse(details)
 	if err != nil {
@@ -77,25 +74,14 @@ func prepareBiddersDetailResponse(bidders config.BidderInfos, aliases map[string
 	return responses, nil
 }
 
-func mapDetails(bidders config.BidderInfos, aliases map[string]string) (map[string]bidderDetail, error) {
+func mapDetails(bidders config.BidderInfos) map[string]bidderDetail {
 	details := map[string]bidderDetail{}
 
 	for bidderName, bidderInfo := range bidders {
 		details[bidderName] = mapDetailFromConfig(bidderInfo)
 	}
 
-	for aliasName, bidderName := range aliases {
-		aliasBaseInfo, aliasBaseInfoFound := details[bidderName]
-		if !aliasBaseInfoFound {
-			return nil, fmt.Errorf("base adapter %s for alias %s not found", bidderName, aliasName)
-		}
-
-		aliasInfo := aliasBaseInfo
-		aliasInfo.AliasOf = bidderName
-		details[aliasName] = aliasInfo
-	}
-
-	return details, nil
+	return details
 }
 
 func marshalDetailsResponse(details map[string]bidderDetail) (map[string][]byte, error) {
@@ -151,6 +137,8 @@ type platform struct {
 func mapDetailFromConfig(c config.BidderInfo) bidderDetail {
 	var bidderDetail bidderDetail
 
+	bidderDetail.AliasOf = c.AliasOf
+
 	if c.Maintainer != nil {
 		bidderDetail.Maintainer = &maintainer{
 			Email: c.Maintainer.Email,
diff --git a/endpoints/info/bidders_detail_test.go b/endpoints/info/bidders_detail_test.go
index 4965decef40..f86a52692d9 100644
--- a/endpoints/info/bidders_detail_test.go
+++ b/endpoints/info/bidders_detail_test.go
@@ -9,8 +9,9 @@ import (
 	"testing"
 
 	"github.com/julienschmidt/httprouter"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -34,124 +35,72 @@ func TestPrepareBiddersDetailResponse(t *testing.T) {
 	allResponseBidderAB.WriteString(`}`)
 
 	var testCases = []struct {
-		description       string
+		name              string
 		givenBidders      config.BidderInfos
-		givenAliases      map[string]string
 		expectedResponses map[string][]byte
-		expectedError     string
 	}{
 		{
-			description:       "None",
+			name:              "none",
 			givenBidders:      config.BidderInfos{},
-			givenAliases:      map[string]string{},
 			expectedResponses: map[string][]byte{"all": []byte(`{}`)},
 		},
 		{
-			description:       "One",
+			name:              "one",
 			givenBidders:      config.BidderInfos{"a": bidderAInfo},
-			givenAliases:      map[string]string{},
 			expectedResponses: map[string][]byte{"a": bidderAResponse, "all": allResponseBidderA.Bytes()},
 		},
 		{
-			description:       "Many",
+			name:              "many",
 			givenBidders:      config.BidderInfos{"a": bidderAInfo, "b": bidderBInfo},
-			givenAliases:      map[string]string{},
 			expectedResponses: map[string][]byte{"a": bidderAResponse, "b": bidderBResponse, "all": allResponseBidderAB.Bytes()},
 		},
-		{
-			description:   "Error - Map Details", // Returns error due to invalid alias.
-			givenBidders:  config.BidderInfos{"a": bidderAInfo},
-			givenAliases:  map[string]string{"zAlias": "z"},
-			expectedError: "base adapter z for alias zAlias not found",
-		},
 	}
 
 	for _, test := range testCases {
-		responses, err := prepareBiddersDetailResponse(test.givenBidders, test.givenAliases)
-
-		if test.expectedError == "" {
-			assert.Equal(t, test.expectedResponses, responses, test.description+":responses")
-			assert.NoError(t, err, test.expectedError, test.description+":err")
-		} else {
-			assert.Empty(t, responses, test.description+":responses")
-			assert.EqualError(t, err, test.expectedError, test.description+":err")
-		}
+		t.Run(test.name, func(t *testing.T) {
+			responses, err := prepareBiddersDetailResponse(test.givenBidders)
+			assert.NoError(t, err)
+			assert.Equal(t, test.expectedResponses, responses)
+		})
 	}
 }
 
 func TestMapDetails(t *testing.T) {
-	trueValue := true
-	falseValue := false
+	var (
+		bidderAInfo   = config.BidderInfo{Endpoint: "https://secureEndpoint.com", Disabled: false, Maintainer: &config.MaintainerInfo{Email: "bidderA"}}
+		bidderADetail = bidderDetail{Status: "ACTIVE", UsesHTTPS: ptrutil.ToPtr(true), Maintainer: &maintainer{Email: "bidderA"}}
 
-	bidderAInfo := config.BidderInfo{Endpoint: "https://secureEndpoint.com", Disabled: false, Maintainer: &config.MaintainerInfo{Email: "bidderA"}}
-	bidderADetail := bidderDetail{Status: "ACTIVE", UsesHTTPS: &trueValue, Maintainer: &maintainer{Email: "bidderA"}}
-	aliasADetail := bidderDetail{Status: "ACTIVE", UsesHTTPS: &trueValue, Maintainer: &maintainer{Email: "bidderA"}, AliasOf: "a"}
-
-	bidderBInfo := config.BidderInfo{Endpoint: "http://unsecureEndpoint.com", Disabled: false, Maintainer: &config.MaintainerInfo{Email: "bidderB"}}
-	bidderBDetail := bidderDetail{Status: "ACTIVE", UsesHTTPS: &falseValue, Maintainer: &maintainer{Email: "bidderB"}}
-	aliasBDetail := bidderDetail{Status: "ACTIVE", UsesHTTPS: &falseValue, Maintainer: &maintainer{Email: "bidderB"}, AliasOf: "b"}
+		bidderBInfo   = config.BidderInfo{Endpoint: "http://unsecureEndpoint.com", Disabled: false, Maintainer: &config.MaintainerInfo{Email: "bidderB"}}
+		bidderBDetail = bidderDetail{Status: "ACTIVE", UsesHTTPS: ptrutil.ToPtr(false), Maintainer: &maintainer{Email: "bidderB"}}
+	)
 
 	var testCases = []struct {
-		description     string
+		name            string
 		givenBidders    config.BidderInfos
-		givenAliases    map[string]string
 		expectedDetails map[string]bidderDetail
-		expectedError   string
 	}{
 		{
-			description:     "None",
+			name:            "none",
 			givenBidders:    config.BidderInfos{},
-			givenAliases:    map[string]string{},
 			expectedDetails: map[string]bidderDetail{},
 		},
 		{
-			description:     "One Core Bidder",
+			name:            "one",
 			givenBidders:    config.BidderInfos{"a": bidderAInfo},
-			givenAliases:    map[string]string{},
 			expectedDetails: map[string]bidderDetail{"a": bidderADetail},
 		},
 		{
-			description:     "Many Core Bidders",
+			name:            "many",
 			givenBidders:    config.BidderInfos{"a": bidderAInfo, "b": bidderBInfo},
-			givenAliases:    map[string]string{},
 			expectedDetails: map[string]bidderDetail{"a": bidderADetail, "b": bidderBDetail},
 		},
-		{
-			description:     "One Alias",
-			givenBidders:    config.BidderInfos{"a": bidderAInfo},
-			givenAliases:    map[string]string{"aAlias": "a"},
-			expectedDetails: map[string]bidderDetail{"a": bidderADetail, "aAlias": aliasADetail},
-		},
-		{
-			description:     "Many Aliases - Same Core Bidder",
-			givenBidders:    config.BidderInfos{"a": bidderAInfo},
-			givenAliases:    map[string]string{"aAlias1": "a", "aAlias2": "a"},
-			expectedDetails: map[string]bidderDetail{"a": bidderADetail, "aAlias1": aliasADetail, "aAlias2": aliasADetail},
-		},
-		{
-			description:     "Many Aliases - Different Core Bidders",
-			givenBidders:    config.BidderInfos{"a": bidderAInfo, "b": bidderBInfo},
-			givenAliases:    map[string]string{"aAlias": "a", "bAlias": "b"},
-			expectedDetails: map[string]bidderDetail{"a": bidderADetail, "b": bidderBDetail, "aAlias": aliasADetail, "bAlias": aliasBDetail},
-		},
-		{
-			description:   "Error - Alias Without Core Bidder",
-			givenBidders:  config.BidderInfos{"a": bidderAInfo},
-			givenAliases:  map[string]string{"zAlias": "z"},
-			expectedError: "base adapter z for alias zAlias not found",
-		},
 	}
 
 	for _, test := range testCases {
-		details, err := mapDetails(test.givenBidders, test.givenAliases)
-
-		if test.expectedError == "" {
-			assert.Equal(t, test.expectedDetails, details, test.description+":details")
-			assert.NoError(t, err, test.expectedError, test.description+":err")
-		} else {
-			assert.Empty(t, details, test.description+":details")
-			assert.EqualError(t, err, test.expectedError, test.description+":err")
-		}
+		t.Run(test.name, func(t *testing.T) {
+			details := mapDetails(test.givenBidders)
+			assert.Equal(t, test.expectedDetails, details)
+		})
 	}
 }
 
@@ -165,32 +114,33 @@ func TestMarshalDetailsResponse(t *testing.T) {
 	bidderDetailBResponse := []byte(`{"status":"ACTIVE","maintainer":{"email":"bidderB"},"capabilities":{"app":{"mediaTypes":["banner"]}}}`)
 
 	var testCases = []struct {
-		description      string
+		name             string
 		givenDetails     map[string]bidderDetail
 		expectedResponse map[string][]byte
 	}{
 		{
-			description:      "None",
+			name:             "none",
 			givenDetails:     map[string]bidderDetail{},
 			expectedResponse: map[string][]byte{},
 		},
 		{
-			description:      "One",
+			name:             "one",
 			givenDetails:     map[string]bidderDetail{"a": bidderDetailA},
 			expectedResponse: map[string][]byte{"a": bidderDetailAResponse},
 		},
 		{
-			description:      "Many",
+			name:             "many",
 			givenDetails:     map[string]bidderDetail{"a": bidderDetailA, "b": bidderDetailB},
 			expectedResponse: map[string][]byte{"a": bidderDetailAResponse, "b": bidderDetailBResponse},
 		},
 	}
 
 	for _, test := range testCases {
-		response, err := marshalDetailsResponse(test.givenDetails)
-
-		assert.NoError(t, err, test.description+":err")
-		assert.Equal(t, test.expectedResponse, response, test.description+":response")
+		t.Run(test.name, func(t *testing.T) {
+			response, err := marshalDetailsResponse(test.givenDetails)
+			assert.NoError(t, err)
+			assert.Equal(t, test.expectedResponse, response)
+		})
 	}
 }
 
@@ -211,12 +161,12 @@ func TestMapDetailFromConfig(t *testing.T) {
 	falseValue := false
 
 	var testCases = []struct {
-		description     string
+		name            string
 		givenBidderInfo config.BidderInfo
 		expected        bidderDetail
 	}{
 		{
-			description: "Enabled - All Values Present",
+			name: "enabled-all-values",
 			givenBidderInfo: config.BidderInfo{
 				Endpoint: "http://anyEndpoint",
 				Disabled: false,
@@ -244,7 +194,7 @@ func TestMapDetailFromConfig(t *testing.T) {
 			},
 		},
 		{
-			description: "Disabled - All Values Present",
+			name: "disabled-all-values",
 			givenBidderInfo: config.BidderInfo{
 				Endpoint: "http://anyEndpoint",
 				Disabled: true,
@@ -267,7 +217,7 @@ func TestMapDetailFromConfig(t *testing.T) {
 			},
 		},
 		{
-			description: "Enabled - No Values Present",
+			name: "enabled-no-values",
 			givenBidderInfo: config.BidderInfo{
 				Endpoint: "http://amyEndpoint",
 				Disabled: false,
@@ -278,7 +228,7 @@ func TestMapDetailFromConfig(t *testing.T) {
 			},
 		},
 		{
-			description: "Enabled - Protocol - HTTP",
+			name: "enabled-protocol-http",
 			givenBidderInfo: config.BidderInfo{
 				Endpoint: "http://amyEndpoint",
 				Disabled: false,
@@ -289,7 +239,7 @@ func TestMapDetailFromConfig(t *testing.T) {
 			},
 		},
 		{
-			description: "Enabled - Protocol - HTTPS",
+			name: "enabled-protocol-https",
 			givenBidderInfo: config.BidderInfo{
 				Endpoint: "https://amyEndpoint",
 				Disabled: false,
@@ -300,7 +250,7 @@ func TestMapDetailFromConfig(t *testing.T) {
 			},
 		},
 		{
-			description: "Enabled - Protocol - HTTPS - Case Insensitive",
+			name: "enabled-protocol-https-case-insensitive",
 			givenBidderInfo: config.BidderInfo{
 				Disabled: false,
 				Endpoint: "https://amyEndpoint",
@@ -311,7 +261,7 @@ func TestMapDetailFromConfig(t *testing.T) {
 			},
 		},
 		{
-			description: "Enabled - Protocol - Unknown",
+			name: "enabled-protocol-unknown",
 			givenBidderInfo: config.BidderInfo{
 				Endpoint: "endpointWithoutProtocol",
 				Disabled: false,
@@ -324,125 +274,132 @@ func TestMapDetailFromConfig(t *testing.T) {
 	}
 
 	for _, test := range testCases {
-		result := mapDetailFromConfig(test.givenBidderInfo)
-		assert.Equal(t, test.expected, result, test.description)
+		t.Run(test.name, func(t *testing.T) {
+			result := mapDetailFromConfig(test.givenBidderInfo)
+			assert.Equal(t, test.expected, result)
+		})
 	}
 }
 
 func TestMapMediaTypes(t *testing.T) {
 	var testCases = []struct {
-		description string
-		mediaTypes  []openrtb_ext.BidType
-		expected    []string
+		name       string
+		mediaTypes []openrtb_ext.BidType
+		expected   []string
 	}{
 		{
-			description: "Nil",
-			mediaTypes:  nil,
-			expected:    nil,
+			name:       "nil",
+			mediaTypes: nil,
+			expected:   nil,
 		},
 		{
-			description: "None",
-			mediaTypes:  []openrtb_ext.BidType{},
-			expected:    []string{},
+			name:       "none",
+			mediaTypes: []openrtb_ext.BidType{},
+			expected:   []string{},
 		},
 		{
-			description: "One",
-			mediaTypes:  []openrtb_ext.BidType{openrtb_ext.BidTypeBanner},
-			expected:    []string{"banner"},
+			name:       "one",
+			mediaTypes: []openrtb_ext.BidType{openrtb_ext.BidTypeBanner},
+			expected:   []string{"banner"},
 		},
 		{
-			description: "Many",
-			mediaTypes:  []openrtb_ext.BidType{openrtb_ext.BidTypeBanner, openrtb_ext.BidTypeVideo},
-			expected:    []string{"banner", "video"},
+			name:       "many",
+			mediaTypes: []openrtb_ext.BidType{openrtb_ext.BidTypeBanner, openrtb_ext.BidTypeVideo},
+			expected:   []string{"banner", "video"},
 		},
 	}
 
 	for _, test := range testCases {
-		result := mapMediaTypes(test.mediaTypes)
-		assert.ElementsMatch(t, test.expected, result, test.description)
+		t.Run(test.name, func(t *testing.T) {
+			result := mapMediaTypes(test.mediaTypes)
+			assert.ElementsMatch(t, test.expected, result)
+		})
 	}
 }
 
 func TestBiddersDetailHandler(t *testing.T) {
 	bidderAInfo := config.BidderInfo{Endpoint: "https://secureEndpoint.com", Disabled: false, Maintainer: &config.MaintainerInfo{Email: "bidderA"}}
 	bidderAResponse := []byte(`{"status":"ACTIVE","usesHttps":true,"maintainer":{"email":"bidderA"}}`)
-	aliasAResponse := []byte(`{"status":"ACTIVE","usesHttps":true,"maintainer":{"email":"bidderA"},"aliasOf":"appnexus"}`)
 
 	bidderBInfo := config.BidderInfo{Endpoint: "http://unsecureEndpoint.com", Disabled: false, Maintainer: &config.MaintainerInfo{Email: "bidderB"}}
 	bidderBResponse := []byte(`{"status":"ACTIVE","usesHttps":false,"maintainer":{"email":"bidderB"}}`)
 
+	aliasInfo := config.BidderInfo{AliasOf: "appnexus", Endpoint: "https://secureEndpoint.com", Disabled: false, Maintainer: &config.MaintainerInfo{Email: "alias"}}
+	aliasResponse := []byte(`{"status":"ACTIVE","usesHttps":true,"maintainer":{"email":"alias"},"aliasOf":"appnexus"}`)
+
 	allResponse := bytes.Buffer{}
 	allResponse.WriteString(`{"aAlias":`)
-	allResponse.Write(aliasAResponse)
+	allResponse.Write(aliasResponse)
 	allResponse.WriteString(`,"appnexus":`)
 	allResponse.Write(bidderAResponse)
 	allResponse.WriteString(`,"rubicon":`)
 	allResponse.Write(bidderBResponse)
 	allResponse.WriteString(`}`)
 
-	bidders := config.BidderInfos{"appnexus": bidderAInfo, "rubicon": bidderBInfo}
-	aliases := map[string]string{"aAlias": "appnexus"}
+	bidders := config.BidderInfos{"aAlias": aliasInfo, "appnexus": bidderAInfo, "rubicon": bidderBInfo}
+
+	handler := NewBiddersDetailEndpoint(bidders)
 
-	handler := NewBiddersDetailEndpoint(bidders, aliases)
+	openrtb_ext.SetAliasBidderName("aAlias", "appnexus")
 
 	var testCases = []struct {
-		description      string
+		name             string
 		givenBidder      string
 		expectedStatus   int
 		expectedHeaders  http.Header
 		expectedResponse []byte
 	}{
 		{
-			description:      "Bidder A",
+			name:             "bidder-a",
 			givenBidder:      "appnexus",
 			expectedStatus:   http.StatusOK,
 			expectedHeaders:  http.Header{"Content-Type": []string{"application/json"}},
 			expectedResponse: bidderAResponse,
 		},
 		{
-			description:      "Bidder B",
+			name:             "bidder-b",
 			givenBidder:      "rubicon",
 			expectedStatus:   http.StatusOK,
 			expectedHeaders:  http.Header{"Content-Type": []string{"application/json"}},
 			expectedResponse: bidderBResponse,
 		},
 		{
-			description:      "Bidder B - case insensitive",
+			name:             "bidder-b-case-insensitive",
 			givenBidder:      "RUBICON",
 			expectedStatus:   http.StatusOK,
 			expectedHeaders:  http.Header{"Content-Type": []string{"application/json"}},
 			expectedResponse: bidderBResponse,
 		},
 		{
-			description:      "Bidder A Alias",
+			name:             "bidder-a-alias",
 			givenBidder:      "aAlias",
 			expectedStatus:   http.StatusOK,
 			expectedHeaders:  http.Header{"Content-Type": []string{"application/json"}},
-			expectedResponse: aliasAResponse,
+			expectedResponse: aliasResponse,
 		},
 		{
-			description:      "Bidder A Alias - case insensitive",
+			name:             "bidder-a-alias-case-insensitive",
 			givenBidder:      "aAlias",
 			expectedStatus:   http.StatusOK,
 			expectedHeaders:  http.Header{"Content-Type": []string{"application/json"}},
-			expectedResponse: aliasAResponse,
+			expectedResponse: aliasResponse,
 		},
 		{
-			description:      "All Bidders",
+			name:             "all-bidders",
 			givenBidder:      "all",
 			expectedStatus:   http.StatusOK,
 			expectedHeaders:  http.Header{"Content-Type": []string{"application/json"}},
 			expectedResponse: allResponse.Bytes(),
 		},
 		{
-			description:      "All Bidders - Case insensitive",
+			name:             "all-bidders-case-insensitive",
 			givenBidder:      "All",
 			expectedStatus:   http.StatusOK,
 			expectedHeaders:  http.Header{"Content-Type": []string{"application/json"}},
 			expectedResponse: allResponse.Bytes(),
 		},
 		{
-			description:      "Invalid Bidder",
+			name:             "invalid",
 			givenBidder:      "doesntExist",
 			expectedStatus:   http.StatusNotFound,
 			expectedHeaders:  http.Header{},
@@ -451,7 +408,7 @@ func TestBiddersDetailHandler(t *testing.T) {
 	}
 
 	for _, test := range testCases {
-		t.Run(test.description, func(t *testing.T) {
+		t.Run(test.name, func(t *testing.T) {
 			responseRecorder := httptest.NewRecorder()
 			handler(responseRecorder, nil, httprouter.Params{{
 				Key:   "bidderName",
@@ -459,14 +416,14 @@ func TestBiddersDetailHandler(t *testing.T) {
 			}})
 
 			result := responseRecorder.Result()
-			assert.Equal(t, result.StatusCode, test.expectedStatus, test.description+":statuscode")
+			assert.Equal(t, test.expectedStatus, result.StatusCode, "statuscode")
 
 			resultBody, _ := io.ReadAll(result.Body)
 			fmt.Println(string(test.expectedResponse))
-			assert.Equal(t, test.expectedResponse, resultBody, test.description+":body")
+			assert.Equal(t, test.expectedResponse, resultBody, "body")
 
 			resultHeaders := result.Header
-			assert.Equal(t, test.expectedHeaders, resultHeaders, test.description+":headers")
+			assert.Equal(t, test.expectedHeaders, resultHeaders, "headers")
 		})
 	}
 }
diff --git a/endpoints/info/bidders_test.go b/endpoints/info/bidders_test.go
index 189eb865551..b75b32aae10 100644
--- a/endpoints/info/bidders_test.go
+++ b/endpoints/info/bidders_test.go
@@ -6,7 +6,7 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -19,88 +19,65 @@ func TestPrepareBiddersResponseAll(t *testing.T) {
 	)
 
 	testCases := []struct {
-		name                string
-		givenBidders        config.BidderInfos
-		givenRequestAliases map[string]string
-		expected            string
+		name         string
+		givenBidders config.BidderInfos
+		expected     string
 	}{
 		{
-			name:                "none",
-			givenBidders:        config.BidderInfos{},
-			givenRequestAliases: nil,
-			expected:            `[]`,
-		},
-		{
-			name:                "core-one-enabled",
-			givenBidders:        config.BidderInfos{"a": enabledCore},
-			givenRequestAliases: nil,
-			expected:            `["a"]`,
-		},
-		{
-			name:                "core-one-disabled",
-			givenBidders:        config.BidderInfos{"a": disabledCore},
-			givenRequestAliases: nil,
-			expected:            `["a"]`,
+			name:         "none",
+			givenBidders: config.BidderInfos{},
+			expected:     `[]`,
 		},
 		{
-			name:                "core-one-mixed",
-			givenBidders:        config.BidderInfos{"a": disabledCore, "b": enabledCore},
-			givenRequestAliases: nil,
-			expected:            `["a","b"]`,
+			name:         "core-one-enabled",
+			givenBidders: config.BidderInfos{"a": enabledCore},
+			expected:     `["a"]`,
 		},
 		{
-			name:                "core-one-mixed-sorted",
-			givenBidders:        config.BidderInfos{"z": enabledCore, "a": enabledCore},
-			givenRequestAliases: nil,
-			expected:            `["a","z"]`,
+			name:         "core-one-disabled",
+			givenBidders: config.BidderInfos{"a": disabledCore},
+			expected:     `["a"]`,
 		},
 		{
-			name:                "alias-one",
-			givenBidders:        config.BidderInfos{"a": enabledAlias},
-			givenRequestAliases: nil,
-			expected:            `["a"]`,
+			name:         "core-many-mixed",
+			givenBidders: config.BidderInfos{"a": disabledCore, "b": enabledCore},
+			expected:     `["a","b"]`,
 		},
 		{
-			name:                "alias-mixed",
-			givenBidders:        config.BidderInfos{"a": disabledCore, "b": disabledAlias, "c": enabledCore, "d": enabledAlias},
-			givenRequestAliases: nil,
-			expected:            `["a","b","c","d"]`,
+			name:         "core-many-sorted",
+			givenBidders: config.BidderInfos{"z": enabledCore, "a": enabledCore},
+			expected:     `["a","z"]`,
 		},
 		{
-			name:                "alias-mixed-sorted",
-			givenBidders:        config.BidderInfos{"z": enabledAlias, "a": enabledCore},
-			givenRequestAliases: nil,
-			expected:            `["a","z"]`,
+			name:         "alias-one-enabled",
+			givenBidders: config.BidderInfos{"a": enabledAlias},
+			expected:     `["a"]`,
 		},
 		{
-			name:                "defaultrequest-one",
-			givenBidders:        config.BidderInfos{"a": enabledCore},
-			givenRequestAliases: map[string]string{"b": "a"},
-			expected:            `["a","b"]`,
+			name:         "alias-one-disabled",
+			givenBidders: config.BidderInfos{"a": disabledAlias},
+			expected:     `["a"]`,
 		},
 		{
-			name:                "defaultrequest-mixed",
-			givenBidders:        config.BidderInfos{"a": enabledCore, "b": disabledCore},
-			givenRequestAliases: map[string]string{"x": "a", "y": "b"},
-			expected:            `["a","b","x","y"]`,
+			name:         "alias-many-mixed",
+			givenBidders: config.BidderInfos{"a": enabledAlias, "b": disabledAlias},
+			expected:     `["a","b"]`,
 		},
 		{
-			name:                "defaultrequest-mixed-sorted",
-			givenBidders:        config.BidderInfos{"z": enabledCore},
-			givenRequestAliases: map[string]string{"a": "z"},
-			expected:            `["a","z"]`,
+			name:         "alias-many-sorted",
+			givenBidders: config.BidderInfos{"z": enabledAlias, "a": enabledCore},
+			expected:     `["a","z"]`,
 		},
 		{
-			name:                "mixed",
-			givenBidders:        config.BidderInfos{"a": disabledCore, "b": disabledAlias, "c": enabledCore, "d": enabledAlias},
-			givenRequestAliases: map[string]string{"z": "a"},
-			expected:            `["a","b","c","d","z"]`,
+			name:         "mixed",
+			givenBidders: config.BidderInfos{"a": disabledCore, "b": disabledAlias, "c": enabledCore, "d": enabledAlias},
+			expected:     `["a","b","c","d"]`,
 		},
 	}
 
 	for _, test := range testCases {
 		t.Run(test.name, func(t *testing.T) {
-			result, err := prepareBiddersResponseAll(test.givenBidders, test.givenRequestAliases)
+			result, err := prepareBiddersResponseAll(test.givenBidders)
 			assert.NoError(t, err)
 			assert.Equal(t, []byte(test.expected), result)
 		})
@@ -136,22 +113,32 @@ func TestPrepareBiddersResponseAllBaseOnly(t *testing.T) {
 			expected:     `["a"]`,
 		},
 		{
-			name:         "core-one-mixed",
+			name:         "core-many-mixed",
 			givenBidders: config.BidderInfos{"a": disabledCore, "b": enabledCore},
 			expected:     `["a","b"]`,
 		},
 		{
-			name:         "core-one-mixed-sorted",
+			name:         "core-many-sorted",
 			givenBidders: config.BidderInfos{"z": enabledCore, "a": enabledCore},
 			expected:     `["a","z"]`,
 		},
 		{
-			name:         "alias-one",
+			name:         "alias-one-enabled",
 			givenBidders: config.BidderInfos{"a": enabledAlias},
 			expected:     `[]`,
 		},
 		{
-			name:         "alias-mixed",
+			name:         "alias-one-disabled",
+			givenBidders: config.BidderInfos{"a": disabledAlias},
+			expected:     `[]`,
+		},
+		{
+			name:         "alias-many",
+			givenBidders: config.BidderInfos{"a": enabledAlias, "b": enabledAlias},
+			expected:     `[]`,
+		},
+		{
+			name:         "mixed",
 			givenBidders: config.BidderInfos{"a": disabledCore, "b": disabledAlias, "c": enabledCore, "d": enabledAlias},
 			expected:     `["a","c"]`,
 		},
@@ -175,88 +162,65 @@ func TestPrepareBiddersResponseEnabledOnly(t *testing.T) {
 	)
 
 	testCases := []struct {
-		name                string
-		givenBidders        config.BidderInfos
-		givenRequestAliases map[string]string
-		expected            string
+		name         string
+		givenBidders config.BidderInfos
+		expected     string
 	}{
 		{
-			name:                "none",
-			givenBidders:        config.BidderInfos{},
-			givenRequestAliases: nil,
-			expected:            `[]`,
-		},
-		{
-			name:                "core-one-enabled",
-			givenBidders:        config.BidderInfos{"a": enabledCore},
-			givenRequestAliases: nil,
-			expected:            `["a"]`,
-		},
-		{
-			name:                "core-one-disabled",
-			givenBidders:        config.BidderInfos{"a": disabledCore},
-			givenRequestAliases: nil,
-			expected:            `[]`,
+			name:         "none",
+			givenBidders: config.BidderInfos{},
+			expected:     `[]`,
 		},
 		{
-			name:                "core-one-mixed",
-			givenBidders:        config.BidderInfos{"a": disabledCore, "b": enabledCore},
-			givenRequestAliases: nil,
-			expected:            `["b"]`,
+			name:         "core-one-enabled",
+			givenBidders: config.BidderInfos{"a": enabledCore},
+			expected:     `["a"]`,
 		},
 		{
-			name:                "core-one-mixed-sorted",
-			givenBidders:        config.BidderInfos{"z": enabledCore, "a": enabledCore},
-			givenRequestAliases: nil,
-			expected:            `["a","z"]`,
+			name:         "core-one-disabled",
+			givenBidders: config.BidderInfos{"a": disabledCore},
+			expected:     `[]`,
 		},
 		{
-			name:                "alias-one",
-			givenBidders:        config.BidderInfos{"a": enabledAlias},
-			givenRequestAliases: nil,
-			expected:            `["a"]`,
+			name:         "core-many-mixed",
+			givenBidders: config.BidderInfos{"a": disabledCore, "b": enabledCore},
+			expected:     `["b"]`,
 		},
 		{
-			name:                "alias-mixed",
-			givenBidders:        config.BidderInfos{"a": disabledCore, "b": disabledAlias, "c": enabledCore, "d": enabledAlias},
-			givenRequestAliases: nil,
-			expected:            `["c","d"]`,
+			name:         "core-many-sorted",
+			givenBidders: config.BidderInfos{"z": enabledCore, "a": enabledCore},
+			expected:     `["a","z"]`,
 		},
 		{
-			name:                "alias-mixed-sorted",
-			givenBidders:        config.BidderInfos{"z": enabledAlias, "a": enabledCore},
-			givenRequestAliases: nil,
-			expected:            `["a","z"]`,
+			name:         "alias-one-enabled",
+			givenBidders: config.BidderInfos{"a": enabledAlias},
+			expected:     `["a"]`,
 		},
 		{
-			name:                "defaultrequest-one",
-			givenBidders:        config.BidderInfos{"a": enabledCore},
-			givenRequestAliases: map[string]string{"b": "a"},
-			expected:            `["a","b"]`,
+			name:         "alias-one-disabled",
+			givenBidders: config.BidderInfos{"a": disabledAlias},
+			expected:     `[]`,
 		},
 		{
-			name:                "defaultrequest-mixed",
-			givenBidders:        config.BidderInfos{"a": enabledCore, "b": disabledCore},
-			givenRequestAliases: map[string]string{"x": "a", "y": "b"},
-			expected:            `["a","x"]`,
+			name:         "alias-many-mixed",
+			givenBidders: config.BidderInfos{"a": enabledAlias, "b": disabledAlias},
+			expected:     `["a"]`,
 		},
 		{
-			name:                "defaultrequest-mixed-sorted",
-			givenBidders:        config.BidderInfos{"z": enabledCore},
-			givenRequestAliases: map[string]string{"a": "z"},
-			expected:            `["a","z"]`,
+			name:         "alias-many-sorted",
+			givenBidders: config.BidderInfos{"z": enabledAlias, "a": enabledCore},
+			expected:     `["a","z"]`,
 		},
 		{
-			name:                "mixed",
-			givenBidders:        config.BidderInfos{"a": disabledCore, "b": disabledAlias, "c": enabledCore, "d": enabledAlias},
-			givenRequestAliases: map[string]string{"z": "a"},
-			expected:            `["c","d"]`,
+			name:         "mixed",
+			givenBidders: config.BidderInfos{"a": disabledCore, "b": disabledAlias, "c": enabledCore, "d": enabledAlias},
+			expected:     `["c","d"]`,
 		},
 	}
 
 	for _, test := range testCases {
 		t.Run(test.name, func(t *testing.T) {
-			result, err := prepareBiddersResponseEnabledOnly(test.givenBidders, test.givenRequestAliases)
+			result, err := prepareBiddersResponseEnabledOnly(test.givenBidders)
 			assert.NoError(t, err)
 			assert.Equal(t, []byte(test.expected), result)
 		})
@@ -292,17 +256,27 @@ func TestPrepareBiddersResponseEnabledOnlyBaseOnly(t *testing.T) {
 			expected:     `[]`,
 		},
 		{
-			name:         "core-one-mixed",
+			name:         "core-many",
+			givenBidders: config.BidderInfos{"a": enabledCore, "b": enabledCore},
+			expected:     `["a","b"]`,
+		},
+		{
+			name:         "core-many-mixed",
 			givenBidders: config.BidderInfos{"a": disabledCore, "b": enabledCore},
 			expected:     `["b"]`,
 		},
 		{
-			name:         "core-one-mixed-sorted",
+			name:         "core-many-sorted",
 			givenBidders: config.BidderInfos{"z": enabledCore, "a": enabledCore},
 			expected:     `["a","z"]`,
 		},
 		{
-			name:         "alias-one",
+			name:         "alias-one-enabled",
+			givenBidders: config.BidderInfos{"a": enabledAlias},
+			expected:     `[]`,
+		},
+		{
+			name:         "alias-one-disabled",
 			givenBidders: config.BidderInfos{"a": enabledAlias},
 			expected:     `[]`,
 		},
@@ -336,7 +310,6 @@ func TestBiddersHandler(t *testing.T) {
 	)
 
 	bidders := config.BidderInfos{"a": enabledCore, "b": enabledAlias, "c": disabledCore, "d": disabledAlias}
-	aliases := map[string]string{"x": "a", "y": "c"}
 
 	testCases := []struct {
 		name            string
@@ -349,35 +322,35 @@ func TestBiddersHandler(t *testing.T) {
 			name:            "simple",
 			givenURL:        "/info/bidders",
 			expectedStatus:  http.StatusOK,
-			expectedBody:    `["a","b","c","d","x","y"]`,
+			expectedBody:    `["a","b","c","d"]`,
 			expectedHeaders: http.Header{"Content-Type": []string{"application/json"}},
 		},
 		{
 			name:            "enabledonly-false",
 			givenURL:        "/info/bidders?enabledonly=false",
 			expectedStatus:  http.StatusOK,
-			expectedBody:    `["a","b","c","d","x","y"]`,
+			expectedBody:    `["a","b","c","d"]`,
 			expectedHeaders: http.Header{"Content-Type": []string{"application/json"}},
 		},
 		{
 			name:            "enabledonly-false-caseinsensitive",
 			givenURL:        "/info/bidders?enabledonly=fAlSe",
 			expectedStatus:  http.StatusOK,
-			expectedBody:    `["a","b","c","d","x","y"]`,
+			expectedBody:    `["a","b","c","d"]`,
 			expectedHeaders: http.Header{"Content-Type": []string{"application/json"}},
 		},
 		{
 			name:            "enabledonly-true",
 			givenURL:        "/info/bidders?enabledonly=true",
 			expectedStatus:  http.StatusOK,
-			expectedBody:    `["a","b","x"]`,
+			expectedBody:    `["a","b"]`,
 			expectedHeaders: http.Header{"Content-Type": []string{"application/json"}},
 		},
 		{
 			name:            "enabledonly-true-caseinsensitive",
 			givenURL:        "/info/bidders?enabledonly=TrUe",
 			expectedStatus:  http.StatusOK,
-			expectedBody:    `["a","b","x"]`,
+			expectedBody:    `["a","b"]`,
 			expectedHeaders: http.Header{"Content-Type": []string{"application/json"}},
 		},
 		{
@@ -398,14 +371,14 @@ func TestBiddersHandler(t *testing.T) {
 			name:            "baseonly-false",
 			givenURL:        "/info/bidders?baseadaptersonly=false",
 			expectedStatus:  http.StatusOK,
-			expectedBody:    `["a","b","c","d","x","y"]`,
+			expectedBody:    `["a","b","c","d"]`,
 			expectedHeaders: http.Header{"Content-Type": []string{"application/json"}},
 		},
 		{
 			name:            "baseonly-false-caseinsensitive",
 			givenURL:        "/info/bidders?baseadaptersonly=fAlSe",
 			expectedStatus:  http.StatusOK,
-			expectedBody:    `["a","b","c","d","x","y"]`,
+			expectedBody:    `["a","b","c","d"]`,
 			expectedHeaders: http.Header{"Content-Type": []string{"application/json"}},
 		},
 		{
@@ -440,7 +413,7 @@ func TestBiddersHandler(t *testing.T) {
 			name:            "enabledonly-true-baseonly-false",
 			givenURL:        "/info/bidders?enabledonly=true&baseadaptersonly=false",
 			expectedStatus:  http.StatusOK,
-			expectedBody:    `["a","b","x"]`,
+			expectedBody:    `["a","b"]`,
 			expectedHeaders: http.Header{"Content-Type": []string{"application/json"}},
 		},
 		{
@@ -461,7 +434,7 @@ func TestBiddersHandler(t *testing.T) {
 
 	for _, test := range testCases {
 		t.Run(test.name, func(t *testing.T) {
-			handler := NewBiddersEndpoint(bidders, aliases)
+			handler := NewBiddersEndpoint(bidders)
 
 			request := httptest.NewRequest("GET", test.givenURL, nil)
 
diff --git a/endpoints/openrtb2/amp_auction.go b/endpoints/openrtb2/amp_auction.go
index 4a409a679c7..b596ec793c6 100644
--- a/endpoints/openrtb2/amp_auction.go
+++ b/endpoints/openrtb2/amp_auction.go
@@ -16,29 +16,29 @@ import (
 	"github.com/julienschmidt/httprouter"
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/prebid/openrtb/v20/openrtb3"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/util/uuidutil"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/util/uuidutil"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 
-	accountService "github.com/prebid/prebid-server/v2/account"
-	"github.com/prebid/prebid-server/v2/amp"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/exchange"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/empty_fetcher"
-	"github.com/prebid/prebid-server/v2/stored_responses"
-	"github.com/prebid/prebid-server/v2/usersync"
-	"github.com/prebid/prebid-server/v2/util/iputil"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/version"
+	accountService "github.com/prebid/prebid-server/v3/account"
+	"github.com/prebid/prebid-server/v3/amp"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/exchange"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/empty_fetcher"
+	"github.com/prebid/prebid-server/v3/stored_responses"
+	"github.com/prebid/prebid-server/v3/usersync"
+	"github.com/prebid/prebid-server/v3/util/iputil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/version"
 )
 
 const defaultAmpRequestTimeoutMillis = 900
@@ -211,9 +211,9 @@ func (deps *endpointDeps) AmpAuction(w http.ResponseWriter, r *http.Request, _ h
 		metricsStatus := metrics.RequestStatusBadInput
 		for _, er := range errL {
 			errCode := errortypes.ReadCode(er)
-			if errCode == errortypes.BlacklistedAppErrorCode || errCode == errortypes.AccountDisabledErrorCode {
+			if errCode == errortypes.BlockedAppErrorCode || errCode == errortypes.AccountDisabledErrorCode {
 				httpStatus = http.StatusServiceUnavailable
-				metricsStatus = metrics.RequestStatusBlacklisted
+				metricsStatus = metrics.RequestStatusBlockedApp
 				break
 			}
 			if errCode == errortypes.MalformedAcctErrorCode {
@@ -510,6 +510,14 @@ func (deps *endpointDeps) parseAmpRequest(httpRequest *http.Request) (req *openr
 	// move to using the request wrapper
 	req = &openrtb_ext.RequestWrapper{BidRequest: reqNormal}
 
+	// normalize to openrtb 2.6
+	if err := openrtb_ext.ConvertUpTo26(req); err != nil {
+		errs = append(errs, err)
+	}
+	if errortypes.ContainsFatalError(errs) {
+		return
+	}
+
 	// Need to ensure cache and targeting are turned on
 	e = initAmpTargetingAndCache(req)
 	if errs = append(errs, e...); errortypes.ContainsFatalError(errs) {
diff --git a/endpoints/openrtb2/amp_auction_test.go b/endpoints/openrtb2/amp_auction_test.go
index d73e6fb5aa3..3fe8a629f02 100644
--- a/endpoints/openrtb2/amp_auction_test.go
+++ b/endpoints/openrtb2/amp_auction_test.go
@@ -19,22 +19,22 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
-	"github.com/prebid/prebid-server/v2/amp"
-	"github.com/prebid/prebid-server/v2/analytics"
-	analyticsBuild "github.com/prebid/prebid-server/v2/analytics/build"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/exchange"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/metrics"
-	metricsConfig "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/empty_fetcher"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/amp"
+	"github.com/prebid/prebid-server/v3/analytics"
+	analyticsBuild "github.com/prebid/prebid-server/v3/analytics/build"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/exchange"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/metrics"
+	metricsConfig "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/empty_fetcher"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // TestGoodRequests makes sure that the auction runs properly-formatted stored bids correctly.
@@ -56,6 +56,7 @@ func TestGoodAmpRequests(t *testing.T) {
 				"buyeruids-case-insensitive.json",
 				"buyeruids-camel-case.json",
 				"aliased-buyeruids-case-insensitive.json",
+				"ortb-2.5-to-2.6-upconvert.json",
 			},
 		},
 		{
@@ -103,8 +104,8 @@ func TestGoodAmpRequests(t *testing.T) {
 				GDPR:           config.GDPR{Enabled: true},
 			}
 			if test.Config != nil {
-				cfg.BlacklistedApps = test.Config.BlacklistedApps
-				cfg.BlacklistedAppMap = test.Config.getBlacklistedAppMap()
+				cfg.BlockedApps = test.Config.BlockedApps
+				cfg.BlockedAppsLookup = test.Config.getBlockedAppLookup()
 				cfg.AccountRequired = test.Config.AccountRequired
 			}
 
@@ -138,6 +139,17 @@ func TestGoodAmpRequests(t *testing.T) {
 					assert.JSONEq(t, string(test.ExpectedValidatedBidReq), string(actualJson), "Not the expected validated request. Test file: %s", filename)
 				}
 			}
+			if test.ExpectedMockBidderRequests != nil {
+				for bidder, req := range test.ExpectedMockBidderRequests {
+					a, ok := ex.adapters[openrtb_ext.BidderName(bidder)]
+					if !ok {
+						t.Fatalf("Unexpected bidder %s has an expected mock bidder request. Test file: %s", bidder, filename)
+					}
+					aa := a.(*exchange.BidderAdapter)
+					ma := aa.Bidder.(*mockAdapter)
+					assert.JSONEq(t, string(req), string(ma.requestData[0]), "Not the expected mock bidder request for bidder %s. Test file: %s", bidder, filename)
+				}
+			}
 		}
 	}
 }
@@ -235,55 +247,47 @@ func TestGDPRConsent(t *testing.T) {
 	existingConsent := "BONV8oqONXwgmADACHENAO7pqzAAppY"
 
 	testCases := []struct {
-		description     string
-		consent         string
-		userExt         *openrtb_ext.ExtUser
-		nilUser         bool
-		expectedUserExt openrtb_ext.ExtUser
+		description  string
+		consent      string
+		user         *openrtb2.User
+		nilUser      bool
+		expectedUser *openrtb2.User
 	}{
 		{
 			description: "Nil User",
 			consent:     consent,
 			nilUser:     true,
-			expectedUserExt: openrtb_ext.ExtUser{
-				Consent: consent,
-			},
-		},
-		{
-			description: "Nil User Ext",
-			consent:     consent,
-			userExt:     nil,
-			expectedUserExt: openrtb_ext.ExtUser{
+			expectedUser: &openrtb2.User{
 				Consent: consent,
 			},
 		},
 		{
 			description: "Overrides Existing Consent",
 			consent:     consent,
-			userExt: &openrtb_ext.ExtUser{
+			user: &openrtb2.User{
 				Consent: existingConsent,
 			},
-			expectedUserExt: openrtb_ext.ExtUser{
+			expectedUser: &openrtb2.User{
 				Consent: consent,
 			},
 		},
 		{
 			description: "Overrides Existing Consent - With Sibling Data",
 			consent:     consent,
-			userExt: &openrtb_ext.ExtUser{
+			user: &openrtb2.User{
 				Consent: existingConsent,
 			},
-			expectedUserExt: openrtb_ext.ExtUser{
+			expectedUser: &openrtb2.User{
 				Consent: consent,
 			},
 		},
 		{
 			description: "Does Not Override Existing Consent If Empty",
 			consent:     "",
-			userExt: &openrtb_ext.ExtUser{
+			user: &openrtb2.User{
 				Consent: existingConsent,
 			},
-			expectedUserExt: openrtb_ext.ExtUser{
+			expectedUser: &openrtb2.User{
 				Consent: existingConsent,
 			},
 		},
@@ -291,7 +295,7 @@ func TestGDPRConsent(t *testing.T) {
 
 	for _, test := range testCases {
 		// Build Request
-		bid, err := getTestBidRequest(test.nilUser, test.userExt, true, nil)
+		bid, err := getTestBidRequest(test.nilUser, test.user, true, nil)
 		if err != nil {
 			t.Fatalf("Failed to marshal the complete openrtb2.BidRequest object %v", err)
 		}
@@ -341,15 +345,8 @@ func TestGDPRConsent(t *testing.T) {
 		if !assert.NotNil(t, result.User, test.description+":lastRequest.User") {
 			return
 		}
-		if !assert.NotNil(t, result.User.Ext, test.description+":lastRequest.User.Ext") {
-			return
-		}
-		var ue openrtb_ext.ExtUser
-		err = jsonutil.UnmarshalValid(result.User.Ext, &ue)
-		if !assert.NoError(t, err, test.description+":deserialize") {
-			return
-		}
-		assert.Equal(t, test.expectedUserExt, ue, test.description)
+
+		assert.Equal(t, test.expectedUser, result.User, test.description)
 		assert.Equal(t, expectedErrorsFromHoldAuction, response.ORTB2.Ext.Errors, test.description+":errors")
 		assert.Empty(t, response.ORTB2.Ext.Warnings, test.description+":warnings")
 
@@ -372,15 +369,8 @@ func TestGDPRConsent(t *testing.T) {
 		if !assert.NotNil(t, resultLegacy.User, test.description+":legacy:lastRequest.User") {
 			return
 		}
-		if !assert.NotNil(t, resultLegacy.User.Ext, test.description+":legacy:lastRequest.User.Ext") {
-			return
-		}
-		var ueLegacy openrtb_ext.ExtUser
-		err = jsonutil.UnmarshalValid(resultLegacy.User.Ext, &ueLegacy)
-		if !assert.NoError(t, err, test.description+":legacy:deserialize") {
-			return
-		}
-		assert.Equal(t, test.expectedUserExt, ueLegacy, test.description+":legacy")
+
+		assert.Equal(t, test.expectedUser, resultLegacy.User, test.description+":legacy")
 		assert.Equal(t, expectedErrorsFromHoldAuction, responseLegacy.ORTB2.Ext.Errors, test.description+":legacy:errors")
 		assert.Empty(t, responseLegacy.ORTB2.Ext.Warnings, test.description+":legacy:warnings")
 	}
@@ -553,28 +543,6 @@ func TestOverrideWithParams(t *testing.T) {
 				errorMsgs: []string{"unable to merge imp.ext with targeting data, check targeting data is correct: Invalid JSON Patch"},
 			},
 		},
-		{
-			desc: "bid request with malformed user.ext.prebid - amp.Params with GDPR consent values - expect policy writer to return error",
-			given: testInput{
-				ampParams: amp.Params{
-					ConsentType: amp.ConsentTCF2,
-					Consent:     "CPdECS0PdECS0ACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA",
-				},
-				bidRequest: &openrtb2.BidRequest{
-					Imp:  []openrtb2.Imp{{Banner: &openrtb2.Banner{Format: []openrtb2.Format{}}}},
-					User: &openrtb2.User{Ext: json.RawMessage(`{"prebid":{malformed}}`)},
-				},
-			},
-			expected: testOutput{
-				bidRequest: &openrtb2.BidRequest{
-					Imp:  []openrtb2.Imp{{Banner: &openrtb2.Banner{Format: []openrtb2.Format{}}}},
-					User: &openrtb2.User{Ext: json.RawMessage(`{"prebid":{malformed}}`)},
-					Site: &openrtb2.Site{Ext: json.RawMessage(`{"amp":1}`)},
-				},
-				errorMsgs:         []string{"expect \" after {, but found m"},
-				expectFatalErrors: true,
-			},
-		},
 	}
 
 	for _, test := range testCases {
@@ -661,46 +629,46 @@ func TestCCPAConsent(t *testing.T) {
 	var gdpr int8 = 1
 
 	testCases := []struct {
-		description    string
-		consent        string
-		regsExt        *openrtb_ext.ExtRegs
-		nilRegs        bool
-		expectedRegExt openrtb_ext.ExtRegs
+		description string
+		consent     string
+		regs        openrtb2.Regs
+		nilRegs     bool
+		expectedReg *openrtb2.Regs
 	}{
 		{
 			description: "Nil Regs",
 			consent:     consent,
 			nilRegs:     true,
-			expectedRegExt: openrtb_ext.ExtRegs{
+			expectedReg: &openrtb2.Regs{
 				USPrivacy: consent,
 			},
 		},
 		{
 			description: "Nil Regs Ext",
 			consent:     consent,
-			regsExt:     nil,
-			expectedRegExt: openrtb_ext.ExtRegs{
+			nilRegs:     true,
+			expectedReg: &openrtb2.Regs{
 				USPrivacy: consent,
 			},
 		},
 		{
 			description: "Overrides Existing Consent",
 			consent:     consent,
-			regsExt: &openrtb_ext.ExtRegs{
+			regs: openrtb2.Regs{
 				USPrivacy: existingConsent,
 			},
-			expectedRegExt: openrtb_ext.ExtRegs{
+			expectedReg: &openrtb2.Regs{
 				USPrivacy: consent,
 			},
 		},
 		{
 			description: "Overrides Existing Consent - With Sibling Data",
 			consent:     consent,
-			regsExt: &openrtb_ext.ExtRegs{
+			regs: openrtb2.Regs{
 				USPrivacy: existingConsent,
 				GDPR:      &gdpr,
 			},
-			expectedRegExt: openrtb_ext.ExtRegs{
+			expectedReg: &openrtb2.Regs{
 				USPrivacy: consent,
 				GDPR:      &gdpr,
 			},
@@ -708,10 +676,10 @@ func TestCCPAConsent(t *testing.T) {
 		{
 			description: "Does Not Override Existing Consent If Empty",
 			consent:     "",
-			regsExt: &openrtb_ext.ExtRegs{
+			regs: openrtb2.Regs{
 				USPrivacy: existingConsent,
 			},
-			expectedRegExt: openrtb_ext.ExtRegs{
+			expectedReg: &openrtb2.Regs{
 				USPrivacy: existingConsent,
 			},
 		},
@@ -719,7 +687,7 @@ func TestCCPAConsent(t *testing.T) {
 
 	for _, test := range testCases {
 		// Build Request
-		bid, err := getTestBidRequest(true, nil, test.nilRegs, test.regsExt)
+		bid, err := getTestBidRequest(true, nil, test.nilRegs, &test.regs)
 		if err != nil {
 			t.Fatalf("Failed to marshal the complete openrtb2.BidRequest object %v", err)
 		}
@@ -765,15 +733,8 @@ func TestCCPAConsent(t *testing.T) {
 		if !assert.NotNil(t, result.Regs, test.description+":lastRequest.Regs") {
 			return
 		}
-		if !assert.NotNil(t, result.Regs.Ext, test.description+":lastRequest.Regs.Ext") {
-			return
-		}
-		var re openrtb_ext.ExtRegs
-		err = jsonutil.UnmarshalValid(result.Regs.Ext, &re)
-		if !assert.NoError(t, err, test.description+":deserialize") {
-			return
-		}
-		assert.Equal(t, test.expectedRegExt, re, test.description)
+
+		assert.Equal(t, test.expectedReg, result.Regs, test.description)
 		assert.Equal(t, expectedErrorsFromHoldAuction, response.ORTB2.Ext.Errors)
 		assert.Empty(t, response.ORTB2.Ext.Warnings)
 	}
@@ -781,7 +742,7 @@ func TestCCPAConsent(t *testing.T) {
 
 func TestConsentWarnings(t *testing.T) {
 	type inputTest struct {
-		regs              *openrtb_ext.ExtRegs
+		regs              *openrtb2.Regs
 		invalidConsentURL bool
 		expectedWarnings  map[openrtb_ext.BidderName][]openrtb_ext.ExtBidderMessage
 	}
@@ -812,7 +773,7 @@ func TestConsentWarnings(t *testing.T) {
 			expectedWarnings:  map[openrtb_ext.BidderName][]openrtb_ext.ExtBidderMessage{openrtb_ext.BidderReservedGeneral: {invalidCCPAWarning}},
 		},
 		{
-			regs:              &openrtb_ext.ExtRegs{USPrivacy: "invalid"},
+			regs:              &openrtb2.Regs{USPrivacy: "invalid"},
 			invalidConsentURL: true,
 			expectedWarnings: map[openrtb_ext.BidderName][]openrtb_ext.ExtBidderMessage{
 				openrtb_ext.BidderReservedGeneral:  {invalidCCPAWarning, invalidConsentWarning},
@@ -820,7 +781,7 @@ func TestConsentWarnings(t *testing.T) {
 			},
 		},
 		{
-			regs:              &openrtb_ext.ExtRegs{USPrivacy: "1NYN"},
+			regs:              &openrtb2.Regs{USPrivacy: "1NYN"},
 			invalidConsentURL: false,
 			expectedWarnings:  map[openrtb_ext.BidderName][]openrtb_ext.ExtBidderMessage{openrtb_ext.BidderName("appnexus"): {bidderWarning}},
 		},
@@ -903,17 +864,18 @@ func TestNewAndLegacyConsentBothProvided(t *testing.T) {
 	validConsentGDPR2 := "CPdiPIJPdiPIJACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA"
 
 	testCases := []struct {
-		description     string
-		consent         string
-		consentLegacy   string
-		userExt         *openrtb_ext.ExtUser
-		expectedUserExt openrtb_ext.ExtUser
+		description   string
+		consent       string
+		consentLegacy string
+		user          *openrtb2.User
+		expectedUser  *openrtb2.User
 	}{
 		{
 			description:   "New Consent Wins",
 			consent:       validConsentGDPR1,
 			consentLegacy: validConsentGDPR2,
-			expectedUserExt: openrtb_ext.ExtUser{
+			user:          &openrtb2.User{},
+			expectedUser: &openrtb2.User{
 				Consent: validConsentGDPR1,
 			},
 		},
@@ -921,7 +883,8 @@ func TestNewAndLegacyConsentBothProvided(t *testing.T) {
 			description:   "New Consent Wins - Reverse",
 			consent:       validConsentGDPR2,
 			consentLegacy: validConsentGDPR1,
-			expectedUserExt: openrtb_ext.ExtUser{
+			user:          &openrtb2.User{},
+			expectedUser: &openrtb2.User{
 				Consent: validConsentGDPR2,
 			},
 		},
@@ -929,7 +892,7 @@ func TestNewAndLegacyConsentBothProvided(t *testing.T) {
 
 	for _, test := range testCases {
 		// Build Request
-		bid, err := getTestBidRequest(false, nil, true, nil)
+		bid, err := getTestBidRequest(false, test.user, true, nil)
 		if err != nil {
 			t.Fatalf("Failed to marshal the complete openrtb2.BidRequest object %v", err)
 		}
@@ -978,15 +941,8 @@ func TestNewAndLegacyConsentBothProvided(t *testing.T) {
 		if !assert.NotNil(t, result.User, test.description+":lastRequest.User") {
 			return
 		}
-		if !assert.NotNil(t, result.User.Ext, test.description+":lastRequest.User.Ext") {
-			return
-		}
-		var ue openrtb_ext.ExtUser
-		err = jsonutil.UnmarshalValid(result.User.Ext, &ue)
-		if !assert.NoError(t, err, test.description+":deserialize") {
-			return
-		}
-		assert.Equal(t, test.expectedUserExt, ue, test.description)
+
+		assert.Equal(t, test.expectedUser, result.User, test.description)
 		assert.Equal(t, expectedErrorsFromHoldAuction, response.ORTB2.Ext.Errors)
 		assert.Empty(t, response.ORTB2.Ext.Warnings)
 	}
@@ -1030,6 +986,7 @@ func TestAMPSiteExt(t *testing.T) {
 }
 
 // TestBadRequests makes sure we return 400's on bad requests.
+// RTB26: Will need to be fixed once all validation functions are updated to rtb 2.6
 func TestAmpBadRequests(t *testing.T) {
 	dir := "sample-requests/invalid-whole/"
 	files, err := os.ReadDir(dir)
@@ -1037,6 +994,7 @@ func TestAmpBadRequests(t *testing.T) {
 
 	mockAmpStoredReq := make(map[string]json.RawMessage, len(files))
 	badRequests := make(map[string]testCase, len(files))
+	filemap := make(map[string]string, len(files))
 	for index, file := range files {
 		filename := file.Name()
 		fileData := readFile(t, dir+filename)
@@ -1055,6 +1013,7 @@ func TestAmpBadRequests(t *testing.T) {
 
 		badRequests[requestID] = test
 		mockAmpStoredReq[requestID] = test.BidRequest
+		filemap[requestID] = filename
 	}
 
 	addAmpBadRequests(badRequests, mockAmpStoredReq)
@@ -1076,15 +1035,17 @@ func TestAmpBadRequests(t *testing.T) {
 		nil,
 	)
 
-	for _, test := range badRequests {
-		request := httptest.NewRequest("GET", fmt.Sprintf("/openrtb2/auction/amp?%s", test.Query), nil)
-		recorder := httptest.NewRecorder()
+	for id, test := range badRequests {
+		t.Run(filemap[id], func(t *testing.T) {
+			request := httptest.NewRequest("GET", fmt.Sprintf("/openrtb2/auction/amp?%s", test.Query), nil)
+			recorder := httptest.NewRecorder()
 
-		endpoint(recorder, request, nil)
+			endpoint(recorder, request, nil)
 
-		response := recorder.Body.String()
-		assert.Equal(t, test.ExpectedReturnCode, recorder.Code, test.Description)
-		assert.Contains(t, response, test.ExpectedErrorMessage, "Actual: %s \nExpected: %s. Description: %s \n", response, test.ExpectedErrorMessage, test.Description)
+			response := recorder.Body.String()
+			assert.Equal(t, test.ExpectedReturnCode, recorder.Code, test.Description)
+			assert.Contains(t, response, test.ExpectedErrorMessage, "Actual: %s \nExpected: %s. Description: %s \n", response, test.ExpectedErrorMessage, test.Description)
+		})
 	}
 }
 
@@ -1555,7 +1516,7 @@ func (m *mockAmpExchangeWarnings) HoldAuction(ctx context.Context, r *exchange.A
 	return &exchange.AuctionResponse{BidResponse: response}, nil
 }
 
-func getTestBidRequest(nilUser bool, userExt *openrtb_ext.ExtUser, nilRegs bool, regsExt *openrtb_ext.ExtRegs) ([]byte, error) {
+func getTestBidRequest(nilUser bool, user *openrtb2.User, nilRegs bool, regs *openrtb2.Regs) ([]byte, error) {
 	var width int64 = 300
 	var height int64 = 300
 	bidRequest := &openrtb2.BidRequest{
@@ -1586,37 +1547,12 @@ func getTestBidRequest(nilUser bool, userExt *openrtb_ext.ExtUser, nilRegs bool,
 		},
 	}
 
-	var userExtData []byte
-	if userExt != nil {
-		var err error
-		userExtData, err = jsonutil.Marshal(userExt)
-		if err != nil {
-			return nil, err
-		}
-	}
-
 	if !nilUser {
-		bidRequest.User = &openrtb2.User{
-			ID:       "aUserId",
-			BuyerUID: "aBuyerID",
-			Ext:      userExtData,
-		}
-	}
-
-	var regsExtData []byte
-	if regsExt != nil {
-		var err error
-		regsExtData, err = jsonutil.Marshal(regsExt)
-		if err != nil {
-			return nil, err
-		}
+		bidRequest.User = user
 	}
 
 	if !nilRegs {
-		bidRequest.Regs = &openrtb2.Regs{
-			COPPA: 1,
-			Ext:   regsExtData,
-		}
+		bidRequest.Regs = regs
 	}
 	return jsonutil.Marshal(bidRequest)
 }
diff --git a/endpoints/openrtb2/auction.go b/endpoints/openrtb2/auction.go
index 1b5a9a4b5b1..fa61c484f0d 100644
--- a/endpoints/openrtb2/auction.go
+++ b/endpoints/openrtb2/auction.go
@@ -22,37 +22,37 @@ import (
 	"github.com/prebid/go-gpp/constants"
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/prebid/openrtb/v20/openrtb3"
-	"github.com/prebid/prebid-server/v2/bidadjustment"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/privacysandbox"
+	"github.com/prebid/prebid-server/v3/bidadjustment"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/privacysandbox"
+	"github.com/prebid/prebid-server/v3/schain"
 	"golang.org/x/net/publicsuffix"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 
-	accountService "github.com/prebid/prebid-server/v2/account"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/exchange"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/prebid_cache_client"
-	"github.com/prebid/prebid-server/v2/privacy/ccpa"
-	"github.com/prebid/prebid-server/v2/privacy/lmt"
-	"github.com/prebid/prebid-server/v2/schain"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/empty_fetcher"
-	"github.com/prebid/prebid-server/v2/stored_responses"
-	"github.com/prebid/prebid-server/v2/usersync"
-	"github.com/prebid/prebid-server/v2/util/httputil"
-	"github.com/prebid/prebid-server/v2/util/iputil"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/uuidutil"
-	"github.com/prebid/prebid-server/v2/version"
+	accountService "github.com/prebid/prebid-server/v3/account"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/exchange"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/prebid_cache_client"
+	"github.com/prebid/prebid-server/v3/privacy/ccpa"
+	"github.com/prebid/prebid-server/v3/privacy/lmt"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/empty_fetcher"
+	"github.com/prebid/prebid-server/v3/stored_responses"
+	"github.com/prebid/prebid-server/v3/usersync"
+	"github.com/prebid/prebid-server/v3/util/httputil"
+	"github.com/prebid/prebid-server/v3/util/iputil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/uuidutil"
+	"github.com/prebid/prebid-server/v3/version"
 )
 
 const ampChannel = "amp"
@@ -534,6 +534,12 @@ func (deps *endpointDeps) parseRequest(httpRequest *http.Request, labels *metric
 		return
 	}
 
+	// normalize to openrtb 2.6
+	if err := openrtb_ext.ConvertUpTo26(req); err != nil {
+		errs = []error{err}
+		return
+	}
+
 	if err := mergeBidderParams(req); err != nil {
 		errs = []error{err}
 		return
@@ -824,10 +830,6 @@ func (deps *endpointDeps) validateRequest(account *config.Account, httpReq *http
 		}
 	}
 
-	if err := mapSChains(req); err != nil {
-		return []error{err}
-	}
-
 	if err := validateOrFillChannel(req, isAmp); err != nil {
 		return []error{err}
 	}
@@ -931,32 +933,6 @@ func (deps *endpointDeps) validateRequest(account *config.Account, httpReq *http
 	return errL
 }
 
-// mapSChains maps an schain defined in an ORTB 2.4 location (req.ext.schain) to the ORTB 2.5 location
-// (req.source.ext.schain) if no ORTB 2.5 schain (req.source.ext.schain, req.ext.prebid.schains) exists.
-// An ORTB 2.4 schain is always deleted from the 2.4 location regardless of whether an ORTB 2.5 schain exists.
-func mapSChains(req *openrtb_ext.RequestWrapper) error {
-	reqExt, err := req.GetRequestExt()
-	if err != nil {
-		return fmt.Errorf("req.ext is invalid: %v", err)
-	}
-	sourceExt, err := req.GetSourceExt()
-	if err != nil {
-		return fmt.Errorf("source.ext is invalid: %v", err)
-	}
-
-	reqExtSChain := reqExt.GetSChain()
-	reqExt.SetSChain(nil)
-
-	if reqPrebid := reqExt.GetPrebid(); reqPrebid != nil && reqPrebid.SChains != nil {
-		return nil
-	} else if sourceExt.GetSChain() != nil {
-		return nil
-	} else if reqExtSChain != nil {
-		sourceExt.SetSChain(reqExtSChain)
-	}
-	return nil
-}
-
 func validateAndFillSourceTID(req *openrtb_ext.RequestWrapper, generateRequestID bool, hasStoredBidRequest bool, isAmp bool) error {
 	if req.Source == nil {
 		req.Source = &openrtb2.Source{}
@@ -1230,8 +1206,8 @@ func (deps *endpointDeps) validateApp(req *openrtb_ext.RequestWrapper) error {
 	}
 
 	if req.App.ID != "" {
-		if _, found := deps.cfg.BlacklistedAppMap[req.App.ID]; found {
-			return &errortypes.BlacklistedApp{Message: fmt.Sprintf("Prebid-server does not process requests from App ID: %s", req.App.ID)}
+		if _, found := deps.cfg.BlockedAppsLookup[req.App.ID]; found {
+			return &errortypes.BlockedApp{Message: fmt.Sprintf("Prebid-server does not process requests from App ID: %s", req.App.ID)}
 		}
 	}
 
@@ -1295,22 +1271,18 @@ func (deps *endpointDeps) validateUser(req *openrtb_ext.RequestWrapper, aliases
 	}
 
 	// Check Universal User ID
-	eids := userExt.GetEid()
-	if eids != nil {
-		eidsValue := *eids
-		for eidIndex, eid := range eidsValue {
-			if eid.Source == "" {
-				return append(errL, fmt.Errorf("request.user.ext.eids[%d] missing required field: \"source\"", eidIndex))
-			}
+	for eidIndex, eid := range req.User.EIDs {
+		if eid.Source == "" {
+			return append(errL, fmt.Errorf("request.user.eids[%d] missing required field: \"source\"", eidIndex))
+		}
 
-			if len(eid.UIDs) == 0 {
-				return append(errL, fmt.Errorf("request.user.ext.eids[%d].uids must contain at least one element or be undefined", eidIndex))
-			}
+		if len(eid.UIDs) == 0 {
+			return append(errL, fmt.Errorf("request.user.eids[%d].uids must contain at least one element or be undefined", eidIndex))
+		}
 
-			for uidIndex, uid := range eid.UIDs {
-				if uid.ID == "" {
-					return append(errL, fmt.Errorf("request.user.ext.eids[%d].uids[%d] missing required field: \"id\"", eidIndex, uidIndex))
-				}
+		for uidIndex, uid := range eid.UIDs {
+			if uid.ID == "" {
+				return append(errL, fmt.Errorf("request.user.eids[%d].uids[%d] missing required field: \"id\"", eidIndex, uidIndex))
 			}
 		}
 	}
@@ -1339,16 +1311,11 @@ func validateRegs(req *openrtb_ext.RequestWrapper, gpp gpplib.GppContainer) []er
 				WarningCode: errortypes.InvalidPrivacyConsentWarningCode})
 		}
 	}
-	regsExt, err := req.GetRegExt()
-	if err != nil {
-		return append(errL, fmt.Errorf("request.regs.ext is invalid: %v", err))
-	}
 
-	gdpr := regsExt.GetGDPR()
-	if gdpr != nil && *gdpr != 0 && *gdpr != 1 {
-		return append(errL, errors.New("request.regs.ext.gdpr must be either 0 or 1"))
+	reqGDPR := req.BidRequest.Regs.GDPR
+	if reqGDPR != nil && *reqGDPR != 0 && *reqGDPR != 1 {
+		return append(errL, errors.New("request.regs.gdpr must be either 0 or 1"))
 	}
-
 	return errL
 }
 
@@ -1371,7 +1338,6 @@ func validateDevice(device *openrtb2.Device) error {
 	if device.Geo != nil && device.Geo.Accuracy < 0 {
 		return errors.New("request.device.geo.accuracy must be a positive number")
 	}
-
 	return nil
 }
 
@@ -1704,9 +1670,9 @@ func (deps *endpointDeps) processStoredRequests(requestJson []byte, impInfo []Im
 		}
 	}
 
-	// Apply default aliases, if they are provided
+	// apply default stored request
 	if deps.defaultRequest {
-		aliasedRequest, err := jsonpatch.MergePatch(deps.defReqJSON, resolvedRequest)
+		merged, err := jsonpatch.MergePatch(deps.defReqJSON, resolvedRequest)
 		if err != nil {
 			hasErr, Err := getJsonSyntaxError(resolvedRequest)
 			if hasErr {
@@ -1719,7 +1685,7 @@ func (deps *endpointDeps) processStoredRequests(requestJson []byte, impInfo []Im
 			}
 			return nil, nil, []error{err}
 		}
-		resolvedRequest = aliasedRequest
+		resolvedRequest = merged
 	}
 
 	// Apply any Stored Imps, if they exist. Since the JSON Merge Patch overrides arrays,
@@ -1898,9 +1864,9 @@ func writeError(errs []error, w http.ResponseWriter, labels *metrics.Labels) boo
 		metricsStatus := metrics.RequestStatusBadInput
 		for _, err := range errs {
 			erVal := errortypes.ReadCode(err)
-			if erVal == errortypes.BlacklistedAppErrorCode || erVal == errortypes.AccountDisabledErrorCode {
+			if erVal == errortypes.BlockedAppErrorCode || erVal == errortypes.AccountDisabledErrorCode {
 				httpStatus = http.StatusServiceUnavailable
-				metricsStatus = metrics.RequestStatusBlacklisted
+				metricsStatus = metrics.RequestStatusBlockedApp
 				break
 			} else if erVal == errortypes.MalformedAcctErrorCode {
 				httpStatus = http.StatusInternalServerError
diff --git a/endpoints/openrtb2/auction_benchmark_test.go b/endpoints/openrtb2/auction_benchmark_test.go
index d3dbc518bd3..9697687407e 100644
--- a/endpoints/openrtb2/auction_benchmark_test.go
+++ b/endpoints/openrtb2/auction_benchmark_test.go
@@ -10,18 +10,18 @@ import (
 	"testing"
 	"time"
 
-	analyticsBuild "github.com/prebid/prebid-server/v2/analytics/build"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/exchange"
-	"github.com/prebid/prebid-server/v2/experiment/adscert"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/macros"
-	metricsConfig "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/empty_fetcher"
-	"github.com/prebid/prebid-server/v2/usersync"
+	analyticsBuild "github.com/prebid/prebid-server/v3/analytics/build"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/exchange"
+	"github.com/prebid/prebid-server/v3/experiment/adscert"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/macros"
+	metricsConfig "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/empty_fetcher"
+	"github.com/prebid/prebid-server/v3/usersync"
 )
 
 // benchmarkTestServer returns the header bidding test ad. This response was scraped from a real appnexus server response.
@@ -152,8 +152,8 @@ func BenchmarkValidWholeExemplary(b *testing.B) {
 
 			cfg := &config.Configuration{
 				MaxRequestSize:    maxSize,
-				BlacklistedApps:   test.Config.BlacklistedApps,
-				BlacklistedAppMap: test.Config.getBlacklistedAppMap(),
+				BlockedApps:       test.Config.BlockedApps,
+				BlockedAppsLookup: test.Config.getBlockedAppLookup(),
 				AccountRequired:   test.Config.AccountRequired,
 			}
 
diff --git a/endpoints/openrtb2/auction_test.go b/endpoints/openrtb2/auction_test.go
index 3f8cdc668f9..2df4813d157 100644
--- a/endpoints/openrtb2/auction_test.go
+++ b/endpoints/openrtb2/auction_test.go
@@ -22,23 +22,23 @@ import (
 	jsoniter "github.com/json-iterator/go"
 	"github.com/julienschmidt/httprouter"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/analytics"
-	analyticsBuild "github.com/prebid/prebid-server/v2/analytics/build"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/exchange"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/metrics"
-	metricsConfig "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/empty_fetcher"
-	"github.com/prebid/prebid-server/v2/stored_responses"
-	"github.com/prebid/prebid-server/v2/util/iputil"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/analytics"
+	analyticsBuild "github.com/prebid/prebid-server/v3/analytics/build"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/exchange"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/metrics"
+	metricsConfig "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/empty_fetcher"
+	"github.com/prebid/prebid-server/v3/stored_responses"
+	"github.com/prebid/prebid-server/v3/util/iputil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -83,8 +83,8 @@ func TestJsonSampleRequests(t *testing.T) {
 			"account-malformed",
 		},
 		{
-			"Asserts we return 503s on requests with blacklisted accounts and apps.",
-			"blacklisted",
+			"Asserts we return 503s on requests with blocked apps.",
+			"blocked",
 		},
 		{
 			"Assert that requests that come with no user id nor app id return error if the `AccountRequired` field in the `config.Configuration` structure is set to true",
@@ -169,18 +169,37 @@ func runJsonBasedTest(t *testing.T, filename, desc string) {
 	// Build endpoint for testing. If no error, run test case
 	cfg := &config.Configuration{MaxRequestSize: maxSize}
 	if test.Config != nil {
-		cfg.BlacklistedApps = test.Config.BlacklistedApps
-		cfg.BlacklistedAppMap = test.Config.getBlacklistedAppMap()
+		cfg.BlockedApps = test.Config.BlockedApps
+		cfg.BlockedAppsLookup = test.Config.getBlockedAppLookup()
 		cfg.AccountRequired = test.Config.AccountRequired
 	}
 	cfg.MarshalAccountDefaults()
 	test.endpointType = OPENRTB_ENDPOINT
 
-	auctionEndpointHandler, _, mockBidServers, mockCurrencyRatesServer, err := buildTestEndpoint(test, cfg)
+	auctionEndpointHandler, ex, mockBidServers, mockCurrencyRatesServer, err := buildTestEndpoint(test, cfg)
 	if assert.NoError(t, err) {
 		assert.NotPanics(t, func() { runEndToEndTest(t, auctionEndpointHandler, test, fileData, filename) }, filename)
 	}
 
+	if test.ExpectedValidatedBidReq != nil {
+		// compare as json to ignore whitespace and ext field ordering
+		actualJson, err := jsonutil.Marshal(ex.actualValidatedBidReq)
+		if assert.NoError(t, err, "Error converting actual bid request to json. Test file: %s", filename) {
+			assert.JSONEq(t, string(test.ExpectedValidatedBidReq), string(actualJson), "Not the expected validated request. Test file: %s", filename)
+		}
+	}
+	if test.ExpectedMockBidderRequests != nil {
+		for bidder, req := range test.ExpectedMockBidderRequests {
+			a, ok := ex.adapters[openrtb_ext.BidderName(bidder)]
+			if !ok {
+				t.Fatalf("Unexpected bidder %s has an expected mock bidder request. Test file: %s", bidder, filename)
+			}
+			aa := a.(*exchange.BidderAdapter)
+			ma := aa.Bidder.(*mockAdapter)
+			assert.JSONEq(t, string(req), string(ma.requestData[0]), "Not the expected mock bidder request for bidder %s. Test file: %s", bidder, filename)
+		}
+	}
+
 	// Close servers regardless if the test case was run or not
 	for _, mockBidServer := range mockBidServers {
 		mockBidServer.Close()
@@ -2775,7 +2794,7 @@ func TestCCPAInvalid(t *testing.T) {
 			ID: "anySiteID",
 		},
 		Regs: &openrtb2.Regs{
-			Ext: json.RawMessage(`{"us_privacy": "invalid by length"}`),
+			USPrivacy: "invalid by length",
 		},
 	}
 
@@ -2938,134 +2957,6 @@ func TestSChainInvalid(t *testing.T) {
 	assert.ElementsMatch(t, errL, []error{expectedError})
 }
 
-func TestMapSChains(t *testing.T) {
-	const seller1SChain string = `"schain":{"complete":1,"nodes":[{"asi":"directseller1.com","sid":"00001","rid":"BidRequest1","hp":1}],"ver":"1.0"}`
-	const seller2SChain string = `"schain":{"complete":2,"nodes":[{"asi":"directseller2.com","sid":"00002","rid":"BidRequest2","hp":2}],"ver":"2.0"}`
-
-	seller1SChainUnpacked := openrtb2.SupplyChain{
-		Complete: 1,
-		Nodes: []openrtb2.SupplyChainNode{{
-			ASI: "directseller1.com",
-			SID: "00001",
-			RID: "BidRequest1",
-			HP:  openrtb2.Int8Ptr(1),
-		}},
-		Ver: "1.0",
-	}
-
-	tests := []struct {
-		description         string
-		bidRequest          openrtb2.BidRequest
-		wantReqExtSChain    *openrtb2.SupplyChain
-		wantSourceExtSChain *openrtb2.SupplyChain
-		wantError           bool
-	}{
-		{
-			description: "invalid req.ext",
-			bidRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":invalid}}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{}`),
-				},
-			},
-			wantError: true,
-		},
-		{
-			description: "invalid source.ext",
-			bidRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{"schain":invalid}}`),
-				},
-			},
-			wantError: true,
-		},
-		{
-			description: "req.ext.prebid.schains, req.source.ext.schain and req.ext.schain are nil",
-			bidRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{}`),
-				},
-			},
-			wantReqExtSChain:    nil,
-			wantSourceExtSChain: nil,
-		},
-		{
-			description: "req.ext.prebid.schains is not nil",
-			bidRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{}`),
-				},
-			},
-			wantReqExtSChain:    nil,
-			wantSourceExtSChain: nil,
-		},
-		{
-			description: "req.source.ext is not nil",
-			bidRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{` + seller1SChain + `}`),
-				},
-			},
-			wantReqExtSChain:    nil,
-			wantSourceExtSChain: &seller1SChainUnpacked,
-		},
-		{
-			description: "req.ext.schain is not nil",
-			bidRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{` + seller1SChain + `}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{}`),
-				},
-			},
-			wantReqExtSChain:    nil,
-			wantSourceExtSChain: &seller1SChainUnpacked,
-		},
-		{
-			description: "req.source.ext.schain and req.ext.schain are not nil",
-			bidRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{` + seller2SChain + `}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{` + seller1SChain + `}`),
-				},
-			},
-			wantReqExtSChain:    nil,
-			wantSourceExtSChain: &seller1SChainUnpacked,
-		},
-	}
-
-	for _, test := range tests {
-		reqWrapper := openrtb_ext.RequestWrapper{
-			BidRequest: &test.bidRequest,
-		}
-
-		err := mapSChains(&reqWrapper)
-
-		if test.wantError {
-			assert.NotNil(t, err, test.description)
-		} else {
-			assert.Nil(t, err, test.description)
-
-			reqExt, err := reqWrapper.GetRequestExt()
-			if err != nil {
-				assert.Fail(t, "Error getting request ext from wrapper", test.description)
-			}
-			reqExtSChain := reqExt.GetSChain()
-			assert.Equal(t, test.wantReqExtSChain, reqExtSChain, test.description)
-
-			sourceExt, err := reqWrapper.GetSourceExt()
-			if err != nil {
-				assert.Fail(t, "Error getting source ext from wrapper", test.description)
-			}
-			sourceExtSChain := sourceExt.GetSChain()
-			assert.Equal(t, test.wantSourceExtSChain, sourceExtSChain, test.description)
-		}
-	}
-}
-
 func TestSearchAccountID(t *testing.T) {
 	// Correctness for lookup within Publisher object left to TestGetAccountID
 	// This however tests the expected lookup paths in outer site, app and dooh
diff --git a/endpoints/openrtb2/interstitial.go b/endpoints/openrtb2/interstitial.go
index a1af3e4721f..4cb9482c0d5 100644
--- a/endpoints/openrtb2/interstitial.go
+++ b/endpoints/openrtb2/interstitial.go
@@ -4,9 +4,9 @@ import (
 	"fmt"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func processInterstitials(req *openrtb_ext.RequestWrapper) error {
diff --git a/endpoints/openrtb2/interstitial_test.go b/endpoints/openrtb2/interstitial_test.go
index 6373d18407b..d5276d18dba 100644
--- a/endpoints/openrtb2/interstitial_test.go
+++ b/endpoints/openrtb2/interstitial_test.go
@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-ccpa-through-query.json b/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-ccpa-through-query.json
index 8dc19f6f24d..30d8b9ca240 100644
--- a/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-ccpa-through-query.json
+++ b/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-ccpa-through-query.json
@@ -74,9 +74,7 @@
       }
     ],
     "regs": {
-      "ext": {
-        "us_privacy": "1YYY"
-      }
+      "us_privacy": "1YYY"
     },
     "ext": {
       "prebid": {
diff --git a/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-legacy-tcf2-consent-through-query.json b/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-legacy-tcf2-consent-through-query.json
index 4003abf99cb..8c232192a63 100644
--- a/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-legacy-tcf2-consent-through-query.json
+++ b/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-legacy-tcf2-consent-through-query.json
@@ -74,14 +74,10 @@
       }
     ],
     "regs": {
-      "ext": {
-        "gdpr": 1
-      }
+      "gdpr": 1
     },
     "user": {
-      "ext": {
-        "consent": "CPdECS0PdECS0ACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA"
-      }
+      "consent": "CPdECS0PdECS0ACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA"
     },
     "ext": {
       "prebid": {
diff --git a/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-tcf1-consent-through-query.json b/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-tcf1-consent-through-query.json
index c6389dadc29..0249bbc3f96 100644
--- a/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-tcf1-consent-through-query.json
+++ b/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-tcf1-consent-through-query.json
@@ -79,9 +79,7 @@
       }
     ],
     "regs": {
-      "ext": {
-        "gdpr": 1
-      }
+      "gdpr": 1
     },
     "ext": {
       "prebid": {
diff --git a/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-tcf2-consent-through-query.json b/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-tcf2-consent-through-query.json
index b62a745b1bf..6f0f5780b43 100644
--- a/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-tcf2-consent-through-query.json
+++ b/endpoints/openrtb2/sample-requests/amp/consent-through-query/gdpr-tcf2-consent-through-query.json
@@ -74,14 +74,10 @@
       }
     ],
     "regs": {
-      "ext": {
-        "gdpr": 1
-      }
+      "gdpr": 1
     },
     "user": {
-      "ext": {
-        "consent": "CPdECS0PdECS0ACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA"
-      }
+      "consent": "CPdECS0PdECS0ACABBENAzCv_____3___wAAAQNd_X9cAAAAAAAA"
     },
     "ext": {
       "prebid": {
diff --git a/endpoints/openrtb2/sample-requests/amp/valid-supplementary/ortb-2.5-to-2.6-upconvert.json b/endpoints/openrtb2/sample-requests/amp/valid-supplementary/ortb-2.5-to-2.6-upconvert.json
new file mode 100644
index 00000000000..766b7fc6ba9
--- /dev/null
+++ b/endpoints/openrtb2/sample-requests/amp/valid-supplementary/ortb-2.5-to-2.6-upconvert.json
@@ -0,0 +1,306 @@
+{
+  "description": "Amp request with all 2.5 ext fields that were moved into 2.6 ortb fields",
+  "query": "tag_id=101",
+  "config": {
+    "mockBidders": [
+      {
+        "bidderName": "appnexus",
+        "currency": "USD",
+        "price": 15
+      }
+    ]
+  },
+  "mockBidRequest": {
+    "id": "b9c97a4b-cbc4-483d-b2c4-58a19ed5cfc5",
+    "site": {
+      "page": "prebid.org"
+    },
+    "imp": [
+      {
+        "id": "/19968336/header-bid-tag-0",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "prebid": {
+            "bidder": {
+              "appnexus": {
+                "placementId": 12883451
+              }
+            },
+            "is_rewarded_inventory": 1
+          }
+        }
+      }
+    ],
+    "regs": {
+      "ext": {
+        "gdpr": 1,
+        "us_privacy": "1YYY"
+      }
+    },
+    "user": {
+      "ext": {
+        "consent": "some-consent-string",
+        "eids": [
+          {
+              "source": "source",
+              "uids": [
+                  {
+                      "id": "1",
+                      "atype": 1,
+                      "ext": {}
+                  },
+                  {
+                      "id": "1",
+                      "atype": 1,
+                      "ext": {}
+                  }
+              ],
+              "ext": {}
+          }
+        ]
+      }
+    },
+    "source": {
+      "ext": {
+        "schain": {
+          "complete": 1,
+          "nodes": [
+              {
+                  "asi": "whatever.com",
+                  "sid": "1234",
+                  "rid": "123-456-7890",
+                  "hp": 1
+              }
+          ],
+          "ver": "2.0"
+      }
+      }
+    }
+  },
+  "expectedValidatedBidRequest": {
+    "id": "b9c97a4b-cbc4-483d-b2c4-58a19ed5cfc5",
+    "site": {
+      "page": "prebid.org",
+      "ext": {
+        "amp": 1
+      }
+    },
+    "device": {
+      "ip": "192.0.2.1"
+    },
+    "at": 1,
+    "imp": [
+      {
+        "id": "/19968336/header-bid-tag-0",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "prebid": {
+            "bidder": {
+              "appnexus": {
+                "placementId": 12883451
+              }
+            }
+          }
+        },
+        "secure": 1,
+        "rwdd": 1
+      }
+    ],
+    "regs": {
+      "gdpr": 1,
+      "us_privacy": "1YYY"
+    },
+    "user": {
+      "consent": "some-consent-string",
+      "eids": [
+        {
+            "source": "source",
+            "uids": [
+                {
+                    "id": "1",
+                    "atype": 1,
+                    "ext": {}
+                },
+                {
+                    "id": "1",
+                    "atype": 1,
+                    "ext": {}
+                }
+            ],
+            "ext": {}
+        }
+      ]
+    },
+    "source": {
+      "schain": {
+        "complete": 1,
+        "nodes": [
+            {
+                "asi": "whatever.com",
+                "sid": "1234",
+                "rid": "123-456-7890",
+                "hp": 1
+            }
+        ],
+        "ver": "2.0"
+      }
+    },
+    "ext": {
+      "prebid": {
+        "cache": {
+          "bids": {}
+        },
+        "channel": {
+          "name": "amp",
+          "version": ""
+        },
+        "targeting": {
+          "pricegranularity": {
+            "precision": 2,
+            "ranges": [
+              {
+                "min": 0,
+                "max": 20,
+                "increment": 0.1
+              }
+            ]
+          },
+          "includewinners": true,
+          "includebidderkeys": true,
+          "mediatypepricegranularity": {}
+        }
+      }
+    }
+  },
+  "expectedMockBidderRequests": {
+    "appnexus": {
+      "id": "b9c97a4b-cbc4-483d-b2c4-58a19ed5cfc5",
+      "site": {
+        "page": "prebid.org",
+        "ext": {
+          "amp": 1
+        }
+      },
+      "device": {
+        "ip": "192.0.2.1"
+      },
+      "at": 1,
+      "imp": [
+        {
+          "id": "/19968336/header-bid-tag-0",
+          "banner": {
+            "format": [
+              {
+                "w": 300,
+                "h": 600
+              }
+            ]
+          },
+          "ext": {
+            "bidder": {
+              "placementId": 12883451
+            },
+            "prebid": {
+              "is_rewarded_inventory": 1
+            }
+          },
+          "secure": 1
+        }
+      ],
+      "regs": {
+        "ext": {
+          "gdpr": 1,
+          "us_privacy": "1YYY"
+        }
+      },
+      "user": {
+        "ext": {
+          "consent": "some-consent-string",
+          "eids": [
+            {
+                "source": "source",
+                "uids": [
+                    {
+                        "id": "1",
+                        "atype": 1,
+                        "ext": {}
+                    },
+                    {
+                        "id": "1",
+                        "atype": 1,
+                        "ext": {}
+                    }
+                ],
+                "ext": {}
+            }
+          ]
+        }
+      },
+      "source": {
+        "ext": {
+          "schain": {
+            "complete": 1,
+            "nodes": [
+                {
+                    "asi": "whatever.com",
+                    "sid": "1234",
+                    "rid": "123-456-7890",
+                    "hp": 1
+                }
+            ],
+            "ver": "2.0"
+          }
+        }
+      },
+      "ext": {
+        "prebid": {
+          "channel": {
+            "name": "amp",
+            "version": ""
+          }
+        }
+      }
+    }
+  },
+  "expectedAmpResponse": {
+    "targeting": {
+      "hb_bidder": "appnexus",
+      "hb_bidder_appnexus": "appnexus",
+      "hb_cache_host": "www.pbcserver.com",
+      "hb_cache_host_appnex": "www.pbcserver.com",
+      "hb_cache_id": "0",
+      "hb_cache_id_appnexus": "0",
+      "hb_cache_path": "/pbcache/endpoint",
+      "hb_cache_path_appnex": "/pbcache/endpoint",
+      "hb_pb": "15.00",
+      "hb_pb_appnexus": "15.00"
+    },
+    "ortb2": {
+      "ext": {
+        "warnings": {
+          "general": [
+            {
+              "code": 10002,
+              "message": "debug turned off for account"
+            }
+          ]
+        }
+      }
+    }
+  },
+  "expectedReturnCode": 200
+}
\ No newline at end of file
diff --git a/endpoints/openrtb2/sample-requests/blacklisted/blacklisted-app.json b/endpoints/openrtb2/sample-requests/blocked/blocked-app.json
similarity index 96%
rename from endpoints/openrtb2/sample-requests/blacklisted/blacklisted-app.json
rename to endpoints/openrtb2/sample-requests/blocked/blocked-app.json
index 120fcec08f4..88e0ed43496 100644
--- a/endpoints/openrtb2/sample-requests/blacklisted/blacklisted-app.json
+++ b/endpoints/openrtb2/sample-requests/blocked/blocked-app.json
@@ -1,7 +1,7 @@
 {
-  "description": "This is a perfectly valid request except that it comes from a blacklisted App",
+  "description": "This is a perfectly valid request except that it comes from a blocked app",
   "config": {
-    "blacklistedApps": ["spam_app"]
+    "blockedApps": ["spam_app"]
   },
   "mockBidRequest": {
     "id": "some-request-id",
diff --git a/endpoints/openrtb2/sample-requests/invalid-whole/regs-ext-gdpr-string.json b/endpoints/openrtb2/sample-requests/invalid-whole/regs-ext-gdpr-string.json
deleted file mode 100644
index dc15410a290..00000000000
--- a/endpoints/openrtb2/sample-requests/invalid-whole/regs-ext-gdpr-string.json
+++ /dev/null
@@ -1,48 +0,0 @@
-{
-  "description": "Invalid GDPR value in regs field",
-  "mockBidRequest": {
-    "id": "b9c97a4b-cbc4-483d-b2c4-58a19ed5cfc5",
-    "site": {
-      "page": "prebid.org",
-      "publisher": {
-        "id": "a3de7af2-a86a-4043-a77b-c7e86744155e"
-      }
-    },
-    "source": {
-      "tid": "b9c97a4b-cbc4-483d-b2c4-58a19ed5cfc5"
-    },
-    "tmax": 1000,
-    "imp": [
-      {
-        "id": "/19968336/header-bid-tag-0",
-        "ext": {
-          "appnexus": {
-            "placementId": 12883451
-          }
-        },
-        "banner": {
-          "format": [
-            {
-              "w": 300,
-              "h": 250
-            },
-            {
-              "w": 300,
-              "h": 300
-            }
-          ]
-        }
-      }
-    ],
-    "regs": {
-      "ext": {
-        "gdpr": "foo"
-      }
-    },
-    "user": {
-      "ext": {}
-    }
-  },
-  "expectedReturnCode": 400,
-  "expectedErrorMessage": "Invalid request: request.regs.ext is invalid: gdpr must be an integer\n"
-}
diff --git a/endpoints/openrtb2/sample-requests/invalid-whole/regs-ext-malformed.json b/endpoints/openrtb2/sample-requests/invalid-whole/regs-ext-malformed.json
index 7ab2631b701..4a513f703b1 100644
--- a/endpoints/openrtb2/sample-requests/invalid-whole/regs-ext-malformed.json
+++ b/endpoints/openrtb2/sample-requests/invalid-whole/regs-ext-malformed.json
@@ -42,5 +42,5 @@
     }
   },
   "expectedReturnCode": 400,
-  "expectedErrorMessage": "Invalid request: request.regs.ext is invalid: expect { or n, but found "
+  "expectedErrorMessage": "Invalid request: req.regs.ext is invalid: expect { or n, but found "
 }
diff --git a/endpoints/openrtb2/sample-requests/invalid-whole/regs-ext-gdpr-invalid.json b/endpoints/openrtb2/sample-requests/invalid-whole/regs-gdpr-invalid.json
similarity index 86%
rename from endpoints/openrtb2/sample-requests/invalid-whole/regs-ext-gdpr-invalid.json
rename to endpoints/openrtb2/sample-requests/invalid-whole/regs-gdpr-invalid.json
index 03e789eef86..40b7281d572 100644
--- a/endpoints/openrtb2/sample-requests/invalid-whole/regs-ext-gdpr-invalid.json
+++ b/endpoints/openrtb2/sample-requests/invalid-whole/regs-gdpr-invalid.json
@@ -35,14 +35,12 @@
       }
     ],
     "regs": {
-      "ext": {
-        "gdpr": 2
-      }
+      "gdpr": 2
     },
     "user": {
       "ext": {}
     }
   },
   "expectedReturnCode": 400,
-  "expectedErrorMessage": "Invalid request: request.regs.ext.gdpr must be either 0 or 1\n"
+  "expectedErrorMessage": "Invalid request: request.regs.gdpr must be either 0 or 1\n"
 }
diff --git a/endpoints/openrtb2/sample-requests/invalid-whole/user-ext-eids-uids-id-empty.json b/endpoints/openrtb2/sample-requests/invalid-whole/user-eids-source-empty.json
similarity index 63%
rename from endpoints/openrtb2/sample-requests/invalid-whole/user-ext-eids-uids-id-empty.json
rename to endpoints/openrtb2/sample-requests/invalid-whole/user-eids-source-empty.json
index 910e9650d75..902a2d9c1b6 100644
--- a/endpoints/openrtb2/sample-requests/invalid-whole/user-ext-eids-uids-id-empty.json
+++ b/endpoints/openrtb2/sample-requests/invalid-whole/user-eids-source-empty.json
@@ -1,5 +1,5 @@
 {
-  "description": "Bid request where a request.user.ext.eids.uids array element is missing its id field",
+  "description": "Bid request with user.eids array element that does not contain source field",
   "mockBidRequest": {
     "id": "anyRequestID",
     "site": {
@@ -29,14 +29,13 @@
     }],
     "tmax": 1000,
     "user": {
-      "ext": {
-        "eids": [{
-          "source": "source1",
-          "uids": [{}]
+      "eids": [{
+        "uids": [{
+          "id": "A"
         }]
-      }
+      }]
     }
   },
   "expectedReturnCode": 400,
-  "expectedErrorMessage": "Invalid request: request.user.ext.eids[0].uids[0] missing required field: \"id\"\n"
+  "expectedErrorMessage": "Invalid request: request.user.eids[0] missing required field: \"source\"\n"
 }
\ No newline at end of file
diff --git a/endpoints/openrtb2/sample-requests/invalid-whole/user-ext-eids-source-empty.json b/endpoints/openrtb2/sample-requests/invalid-whole/user-eids-uids-id-empty.json
similarity index 62%
rename from endpoints/openrtb2/sample-requests/invalid-whole/user-ext-eids-source-empty.json
rename to endpoints/openrtb2/sample-requests/invalid-whole/user-eids-uids-id-empty.json
index 3a451ecbd76..c8eb07aa335 100644
--- a/endpoints/openrtb2/sample-requests/invalid-whole/user-ext-eids-source-empty.json
+++ b/endpoints/openrtb2/sample-requests/invalid-whole/user-eids-uids-id-empty.json
@@ -1,5 +1,5 @@
 {
-  "description": "Bid request with user.ext.eids array element array element that does not contain source field",
+  "description": "Bid request where a request.user.eids.uids array element is missing its id field",
   "mockBidRequest": {
     "id": "anyRequestID",
     "site": {
@@ -29,15 +29,12 @@
     }],
     "tmax": 1000,
     "user": {
-      "ext": {
-        "eids": [{
-          "uids": [{
-            "id": "A"
-          }]
-        }]
-      }
+      "eids": [{
+        "source": "source1",
+        "uids": [{}]
+      }]
     }
   },
   "expectedReturnCode": 400,
-  "expectedErrorMessage": "Invalid request: request.user.ext.eids[0] missing required field: \"source\"\n"
+  "expectedErrorMessage": "Invalid request: request.user.eids[0].uids[0] missing required field: \"id\"\n"
 }
\ No newline at end of file
diff --git a/endpoints/openrtb2/sample-requests/invalid-whole/user-ext-eids-uids-missing.json b/endpoints/openrtb2/sample-requests/invalid-whole/user-eids-uids-missing.json
similarity index 70%
rename from endpoints/openrtb2/sample-requests/invalid-whole/user-ext-eids-uids-missing.json
rename to endpoints/openrtb2/sample-requests/invalid-whole/user-eids-uids-missing.json
index eed386b4c7d..3e55c33b849 100644
--- a/endpoints/openrtb2/sample-requests/invalid-whole/user-ext-eids-uids-missing.json
+++ b/endpoints/openrtb2/sample-requests/invalid-whole/user-eids-uids-missing.json
@@ -1,5 +1,5 @@
 {
-  "description": "Bid request with user.ext.eids array element array element that does not contain uids",
+  "description": "Bid request with user.eids array element array element that does not contain uids",
   "mockBidRequest": {
     "id": "b9c97a4b-cbc4-483d-b2c4-58a19ed5cfc5",
     "site": {
@@ -37,13 +37,11 @@
       }
     },
     "user": {
-      "ext": {
-        "eids": [{
-          "source": "source1"
-        }]
-      }
+      "eids": [{
+        "source": "source1"
+      }]
     }
   },
   "expectedReturnCode": 400,
-  "expectedErrorMessage": "Invalid request: request.user.ext.eids[0].uids must contain at least one element or be undefined\n"
+  "expectedErrorMessage": "Invalid request: request.user.eids[0].uids must contain at least one element or be undefined\n"
 }
\ No newline at end of file
diff --git a/endpoints/openrtb2/sample-requests/invalid-whole/user-ext-consent-int.json b/endpoints/openrtb2/sample-requests/invalid-whole/user-ext-consent-int.json
index af04627c3a9..222ffb993b7 100644
--- a/endpoints/openrtb2/sample-requests/invalid-whole/user-ext-consent-int.json
+++ b/endpoints/openrtb2/sample-requests/invalid-whole/user-ext-consent-int.json
@@ -46,5 +46,5 @@
     }
   },
   "expectedReturnCode": 400,
-  "expectedErrorMessage": "Invalid request: request.user.ext object is not valid: expects \" or n, but found 1"
+  "expectedErrorMessage": "Invalid request: req.user.ext is invalid: expects \" or n, but found 1"
 }
diff --git a/endpoints/openrtb2/sample-requests/invalid-whole/user-gdpr-consent-invalid.json b/endpoints/openrtb2/sample-requests/invalid-whole/user-gdpr-consent-invalid.json
index b710d589ea5..ae9d72c8682 100644
--- a/endpoints/openrtb2/sample-requests/invalid-whole/user-gdpr-consent-invalid.json
+++ b/endpoints/openrtb2/sample-requests/invalid-whole/user-gdpr-consent-invalid.json
@@ -41,5 +41,5 @@
     }
   },
   "expectedReturnCode": 400,
-  "expectedErrorMessage": "Invalid request: request.user.ext object is not valid: expects \" or n, but found 2"
+  "expectedErrorMessage": "Invalid request: req.user.ext is invalid: expects \" or n, but found 2"
 }
diff --git a/endpoints/openrtb2/sample-requests/valid-whole/exemplary/device-sua.json b/endpoints/openrtb2/sample-requests/valid-whole/exemplary/device-sua.json
new file mode 100644
index 00000000000..0f85f904166
--- /dev/null
+++ b/endpoints/openrtb2/sample-requests/valid-whole/exemplary/device-sua.json
@@ -0,0 +1,100 @@
+{
+  "description": "Bid request defines an valid request.device.sua value",
+  "config": {
+    "mockBidders": [
+      {
+        "bidderName": "appnexus",
+        "currency": "USD",
+        "price": 0.00
+      }
+    ]
+  },
+  "mockBidRequest": {
+    "id": "some-request-id",
+    "site": {
+      "page": "prebid.org",
+      "publisher": {
+        "id": "a3de7af2-a86a-4043-a77b-c7e86744155e"
+      }
+    },
+    "tmax": 1000,
+    "imp": [
+      {
+        "id": "some-impression-id",
+        "ext": {
+          "appnexus": {
+            "placementId": 12883451
+          }
+        },
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            },
+            {
+              "w": 300,
+              "h": 300
+            }
+          ]
+        }
+      }
+    ],
+    "device": {
+      "ua": "Mozilla",
+      "geo": {
+        "lat": 123.456,
+        "lon": 678.90,
+        "zip": "90210"
+      },
+      "sua": {
+        "browsers": [
+          {
+            "brand": "MS",
+            "ext": {}
+          },
+          {
+            "brand": "MS",
+            "ext": {}
+          }
+        ],
+        "platform": {
+          "brand": "MS",
+          "ext": {}
+        },
+        "model": "mac"
+      },
+      "dnt": 1,
+      "lmt": 1
+    }
+  },
+  "expectedBidResponse": {
+    "id": "some-request-id",
+    "seatbid": [
+      {
+        "bid": [
+          {
+            "id": "appnexus-bid",
+            "impid": "some-impression-id",
+            "price": 0,
+            "ext": {
+              "origbidcpm": 0,
+              "origbidcur": "USD",
+              "prebid": {
+                "meta": {
+                  "adaptercode": "appnexus"
+                },
+                "type": "banner"
+              }
+            }
+          }
+        ],
+        "seat": "appnexus"
+      }
+    ],
+    "bidid": "test bid id",
+    "cur": "USD",
+    "nbr": 0
+  },
+  "expectedReturnCode": 200
+}
diff --git a/endpoints/openrtb2/sample-requests/valid-whole/exemplary/ortb-2.5-to-2.6-upconvert.json b/endpoints/openrtb2/sample-requests/valid-whole/exemplary/ortb-2.5-to-2.6-upconvert.json
new file mode 100644
index 00000000000..3ff235c4b30
--- /dev/null
+++ b/endpoints/openrtb2/sample-requests/valid-whole/exemplary/ortb-2.5-to-2.6-upconvert.json
@@ -0,0 +1,393 @@
+{
+  "description": "Request with all 2.5 ext fields that were moved into 2.6 ortb fields",
+  "config": {
+    "mockBidders": [
+      {
+        "bidderName": "appnexus",
+        "currency": "USD",
+        "price": 15
+      },
+      {
+        "bidderName": "rubicon",
+        "currency": "USD",
+        "price": 1.00
+      }
+    ],
+    "bidderInfoOverrides": {
+      "appnexus": {
+        "openrtb": {
+          "version": "2.5"
+        }
+      },
+      "rubicon": {
+        "openrtb": {
+          "version": "2.6"
+        }
+      }
+    }
+  },
+  "mockBidRequest": {
+    "id": "some-request-id",
+    "site": {
+      "page": "prebid.org"
+    },
+    "imp": [
+      {
+        "id": "some-impression-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "prebid": {
+            "bidder": {
+              "appnexus": {
+                "placementId": 12883451
+              },
+              "rubicon": {
+                "accountId": 1,
+                "siteId": 2,
+                "zoneId": 3
+              }
+            },
+            "is_rewarded_inventory": 1
+          }
+        }
+      }
+    ],
+    "regs": {
+      "ext": {
+        "gdpr": 1,
+        "us_privacy": "1YYY"
+      }
+    },
+    "user": {
+      "ext": {
+        "consent": "some-consent-string",
+        "eids": [
+          {
+              "source": "source",
+              "uids": [
+                  {
+                      "id": "1",
+                      "atype": 1,
+                      "ext": {}
+                  },
+                  {
+                      "id": "1",
+                      "atype": 1,
+                      "ext": {}
+                  }
+              ],
+              "ext": {}
+          }
+        ]
+      }
+    },
+    "source": {
+      "ext": {
+        "schain": {
+          "complete": 1,
+          "nodes": [
+              {
+                  "asi": "whatever.com",
+                  "sid": "1234",
+                  "rid": "123-456-7890",
+                  "hp": 1
+              }
+          ],
+          "ver": "2.0"
+        }
+      }
+    },
+    "ext": {}
+  },
+  "expectedValidatedBidRequest": {
+    "id": "some-request-id",
+    "site": {
+      "page": "prebid.org",
+      "ext": {
+        "amp": 0
+      }
+    },
+    "at": 1,
+    "device": {
+      "ip": "192.0.2.1"
+    },
+    "imp": [
+      {
+        "id": "some-impression-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "prebid": {
+            "bidder": {
+              "appnexus": {
+                "placementId": 12883451
+              },
+              "rubicon": {
+                "accountId": 1,
+                "siteId": 2,
+                "zoneId": 3
+              }
+            }
+          }
+        },
+        "secure": 1,
+        "rwdd": 1
+      }
+    ],
+    "regs": {
+      "gdpr": 1,
+      "us_privacy": "1YYY"
+    },
+    "user": {
+      "consent": "some-consent-string",
+      "eids": [
+        {
+            "source": "source",
+            "uids": [
+                {
+                    "id": "1",
+                    "atype": 1,
+                    "ext": {}
+                },
+                {
+                    "id": "1",
+                    "atype": 1,
+                    "ext": {}
+                }
+            ],
+            "ext": {}
+        }
+      ]
+    },
+    "source": {
+      "schain": {
+        "complete": 1,
+        "nodes": [
+            {
+                "asi": "whatever.com",
+                "sid": "1234",
+                "rid": "123-456-7890",
+                "hp": 1
+            }
+        ],
+        "ver": "2.0"
+      }
+    }
+  },
+  "expectedMockBidderRequests": {
+    "appnexus": {
+      "id": "some-request-id",
+      "site": {
+        "page": "prebid.org",
+        "ext": {
+          "amp": 0
+        }
+      },
+      "at": 1,
+      "device": {
+        "ip": "192.0.2.1"
+      },
+      "imp": [
+      {
+        "id": "some-impression-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "placementId": 12883451
+          },
+          "prebid": {
+            "is_rewarded_inventory": 1
+          }
+        },
+        "secure": 1
+      }],
+      "regs": {
+        "ext": {
+          "gdpr": 1,
+          "us_privacy": "1YYY"
+        }
+      },
+      "source": {
+        "ext": {
+          "schain": {
+            "complete": 1,
+            "nodes": [
+                {
+                    "asi": "whatever.com",
+                    "sid": "1234",
+                    "rid": "123-456-7890",
+                    "hp": 1
+                }
+            ],
+            "ver": "2.0"
+          }
+        }
+      },
+      "user": {
+        "ext": {
+          "consent": "some-consent-string",
+          "eids": [
+            {
+                "source": "source",
+                "uids": [
+                    {
+                        "id": "1",
+                        "atype": 1,
+                        "ext": {}
+                    },
+                    {
+                        "id": "1",
+                        "atype": 1,
+                        "ext": {}
+                    }
+                ],
+                "ext": {}
+            }
+          ]
+        }
+      }
+    },
+    "rubicon": {
+      "id": "some-request-id",
+      "site": {
+        "page": "prebid.org",
+        "ext": {
+          "amp": 0
+        }
+      },
+      "at": 1,
+      "device": {
+        "ip": "192.0.2.1"
+      },
+      "imp": [
+      {
+        "id": "some-impression-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "accountId": 1,
+            "siteId": 2,
+            "zoneId": 3
+          }
+        },
+        "secure": 1,
+        "rwdd": 1
+      }],
+      "regs": {
+        "gdpr": 1,
+        "us_privacy": "1YYY"
+      },
+      "source": {
+        "schain": {
+          "complete": 1,
+          "nodes": [
+              {
+                  "asi": "whatever.com",
+                  "sid": "1234",
+                  "rid": "123-456-7890",
+                  "hp": 1
+              }
+          ],
+          "ver": "2.0"
+        }
+      },
+      "user": {
+        "consent": "some-consent-string",
+        "eids": [
+          {
+              "source": "source",
+              "uids": [
+                  {
+                      "id": "1",
+                      "atype": 1,
+                      "ext": {}
+                  },
+                  {
+                      "id": "1",
+                      "atype": 1,
+                      "ext": {}
+                  }
+              ],
+              "ext": {}
+          }
+        ]
+      }
+    }
+  },
+  "expectedBidResponse": {
+    "id": "some-request-id",
+    "seatbid": [
+      {
+        "bid": [
+          {
+            "id": "appnexus-bid",
+            "impid": "some-impression-id",
+            "price": 15,
+            "ext": {
+              "origbidcpm": 15,
+              "origbidcur": "USD",
+              "prebid": {
+                "meta": {
+                  "adaptercode": "appnexus"
+                },
+                "type": "banner"
+              }
+            }
+          }
+        ],
+        "seat": "appnexus"
+      },
+      {
+        "bid": [
+          {
+            "id": "rubicon-bid",
+            "impid": "some-impression-id",
+            "price": 1.00,
+            "ext": {
+              "origbidcpm": 1.00,
+              "origbidcur": "USD",
+              "prebid": {
+                "meta": {
+                  "adaptercode": "rubicon"
+                },
+                "type": "banner"
+              }
+            }
+          }
+        ],
+        "seat": "rubicon"
+      }
+    ],
+    "bidid": "test-bid-id",
+    "cur": "USD",
+    "nbr": 0
+  },
+  "expectedReturnCode": 200
+}
\ No newline at end of file
diff --git a/endpoints/openrtb2/sample-requests/valid-whole/exemplary/ortb-2.6-to-2.5-downconvert.json b/endpoints/openrtb2/sample-requests/valid-whole/exemplary/ortb-2.6-to-2.5-downconvert.json
new file mode 100644
index 00000000000..28ba8a707e0
--- /dev/null
+++ b/endpoints/openrtb2/sample-requests/valid-whole/exemplary/ortb-2.6-to-2.5-downconvert.json
@@ -0,0 +1,417 @@
+{
+  "description": "Request with all 2.5 ext fields that were moved into 2.6 ortb fields",
+  "config": {
+    "mockBidders": [
+      {
+        "bidderName": "appnexus",
+        "currency": "USD",
+        "price": 15
+      },
+      {
+        "bidderName": "rubicon",
+        "currency": "USD",
+        "price": 1.00
+      }
+    ],
+    "bidderInfoOverrides": {
+      "appnexus": {
+        "openrtb": {
+          "version": "2.5"
+        }
+      },
+      "rubicon": {
+        "openrtb": {
+          "version": "2.6"
+        }
+      }
+    }
+  },
+  "mockBidRequest": {
+    "id": "some-request-id",
+    "site": {
+      "page": "prebid.org",
+      "inventorypartnerdomain": "any-domain"
+    },
+    "imp": [
+      {
+        "id": "some-impression-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "prebid": {
+            "bidder": {
+              "appnexus": {
+                "placementId": 12883451
+              },
+              "rubicon": {
+                "accountId": 1,
+                "siteId": 2,
+                "zoneId": 3
+              }
+            },
+            "is_rewarded_inventory": 1
+          }
+        },
+        "refresh": {
+          "count": 10
+        }
+      }
+    ],
+    "regs": {
+      "ext": {
+        "gdpr": 1,
+        "us_privacy": "1YYY"
+      }
+    },
+    "user": {
+      "ext": {
+        "consent": "some-consent-string",
+        "eids": [
+          {
+              "source": "source",
+              "uids": [
+                  {
+                      "id": "1",
+                      "atype": 1,
+                      "ext": {}
+                  },
+                  {
+                      "id": "1",
+                      "atype": 1,
+                      "ext": {}
+                  }
+              ],
+              "ext": {}
+          }
+        ]
+      }
+    },
+    "source": {
+      "ext": {
+        "schain": {
+          "complete": 1,
+          "nodes": [
+              {
+                  "asi": "whatever.com",
+                  "sid": "1234",
+                  "rid": "123-456-7890",
+                  "hp": 1
+              }
+          ],
+          "ver": "2.0"
+        }
+      }
+    },
+    "ext": {},
+    "cattax": 20,
+    "acat": ["any-acat"]
+  },
+  "expectedValidatedBidRequest": {
+    "id": "some-request-id",
+    "site": {
+      "page": "prebid.org",
+      "inventorypartnerdomain": "any-domain",
+      "ext": {
+        "amp": 0
+      }
+    },
+    "at": 1,
+    "device": {
+      "ip": "192.0.2.1"
+    },
+    "imp": [
+      {
+        "id": "some-impression-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "prebid": {
+            "bidder": {
+              "appnexus": {
+                "placementId": 12883451
+              },
+              "rubicon": {
+                "accountId": 1,
+                "siteId": 2,
+                "zoneId": 3
+              }
+            }
+          }
+        },
+        "secure": 1,
+        "rwdd": 1,
+        "refresh": {
+          "count": 10
+        }
+      }
+    ],
+    "regs": {
+      "gdpr": 1,
+      "us_privacy": "1YYY"
+    },
+    "user": {
+      "consent": "some-consent-string",
+      "eids": [
+        {
+            "source": "source",
+            "uids": [
+                {
+                    "id": "1",
+                    "atype": 1,
+                    "ext": {}
+                },
+                {
+                    "id": "1",
+                    "atype": 1,
+                    "ext": {}
+                }
+            ],
+            "ext": {}
+        }
+      ]
+    },
+    "source": {
+      "schain": {
+        "complete": 1,
+        "nodes": [
+            {
+                "asi": "whatever.com",
+                "sid": "1234",
+                "rid": "123-456-7890",
+                "hp": 1
+            }
+        ],
+        "ver": "2.0"
+      }
+    },
+    "cattax": 20,
+    "acat": ["any-acat"]
+  },
+  "expectedMockBidderRequests": {
+    "appnexus": {
+      "id": "some-request-id",
+      "site": {
+        "page": "prebid.org",
+        "inventorypartnerdomain": "any-domain",
+        "ext": {
+          "amp": 0
+        }
+      },
+      "at": 1,
+      "device": {
+        "ip": "192.0.2.1"
+      },
+      "imp": [
+      {
+        "id": "some-impression-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "placementId": 12883451
+          },
+          "prebid": {
+            "is_rewarded_inventory": 1
+          }
+        },
+        "refresh": {
+          "count": 10
+        },
+        "secure": 1
+      }],
+      "regs": {
+        "ext": {
+          "gdpr": 1,
+          "us_privacy": "1YYY"
+        }
+      },
+      "source": {
+        "ext": {
+          "schain": {
+            "complete": 1,
+            "nodes": [
+                {
+                    "asi": "whatever.com",
+                    "sid": "1234",
+                    "rid": "123-456-7890",
+                    "hp": 1
+                }
+            ],
+            "ver": "2.0"
+          }
+        }
+      },
+      "user": {
+        "ext": {
+          "consent": "some-consent-string",
+          "eids": [
+            {
+                "source": "source",
+                "uids": [
+                    {
+                        "id": "1",
+                        "atype": 1,
+                        "ext": {}
+                    },
+                    {
+                        "id": "1",
+                        "atype": 1,
+                        "ext": {}
+                    }
+                ],
+                "ext": {}
+            }
+          ]
+        }
+      },
+      "cattax": 20,
+      "acat": ["any-acat"]
+    },
+    "rubicon": {
+      "id": "some-request-id",
+      "site": {
+        "page": "prebid.org",
+        "inventorypartnerdomain": "any-domain",
+        "ext": {
+          "amp": 0
+        }
+      },
+      "at": 1,
+      "device": {
+        "ip": "192.0.2.1"
+      },
+      "imp": [
+      {
+        "id": "some-impression-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "accountId": 1,
+            "siteId": 2,
+            "zoneId": 3
+          }
+        },
+        "secure": 1,
+        "refresh": {
+          "count": 10
+        },
+        "rwdd": 1
+      }],
+      "regs": {
+        "gdpr": 1,
+        "us_privacy": "1YYY"
+      },
+      "source": {
+        "schain": {
+          "complete": 1,
+          "nodes": [
+              {
+                  "asi": "whatever.com",
+                  "sid": "1234",
+                  "rid": "123-456-7890",
+                  "hp": 1
+              }
+          ],
+          "ver": "2.0"
+        }
+      },
+      "user": {
+        "consent": "some-consent-string",
+        "eids": [
+          {
+              "source": "source",
+              "uids": [
+                  {
+                      "id": "1",
+                      "atype": 1,
+                      "ext": {}
+                  },
+                  {
+                      "id": "1",
+                      "atype": 1,
+                      "ext": {}
+                  }
+              ],
+              "ext": {}
+          }
+        ]
+      },
+      "cattax": 20,
+      "acat": ["any-acat"]
+    }
+  },
+  "expectedBidResponse": {
+    "id": "some-request-id",
+    "seatbid": [
+      {
+        "bid": [
+          {
+            "id": "appnexus-bid",
+            "impid": "some-impression-id",
+            "price": 15,
+            "ext": {
+              "origbidcpm": 15,
+              "origbidcur": "USD",
+              "prebid": {
+                "meta": {
+                  "adaptercode": "appnexus"
+                },
+                "type": "banner"
+              }
+            }
+          }
+        ],
+        "seat": "appnexus"
+      },
+      {
+        "bid": [
+          {
+            "id": "rubicon-bid",
+            "impid": "some-impression-id",
+            "price": 1.00,
+            "ext": {
+              "origbidcpm": 1.00,
+              "origbidcur": "USD",
+              "prebid": {
+                "meta": {
+                  "adaptercode": "rubicon"
+                },
+                "type": "banner"
+              }
+            }
+          }
+        ],
+        "seat": "rubicon"
+      }
+    ],
+    "bidid": "test-bid-id",
+    "cur": "USD",
+    "nbr": 0
+  },
+  "expectedReturnCode": 200
+}
\ No newline at end of file
diff --git a/endpoints/openrtb2/sample-requests/valid-whole/exemplary/source-schain.json b/endpoints/openrtb2/sample-requests/valid-whole/exemplary/source-schain.json
new file mode 100644
index 00000000000..c25f7ca1c47
--- /dev/null
+++ b/endpoints/openrtb2/sample-requests/valid-whole/exemplary/source-schain.json
@@ -0,0 +1,91 @@
+{
+  "description": "Bid request defines a valid request.source.schain.nodes value",
+  "config": {
+    "mockBidders": [
+      {
+        "bidderName": "appnexus",
+        "currency": "USD",
+        "price": 0.00
+      }
+    ]
+  },
+  "mockBidRequest": {
+    "id": "some-request-id",
+    "site": {
+      "page": "prebid.org",
+      "publisher": {
+        "id": "a3de7af2-a86a-4043-a77b-c7e86744155e"
+      }
+    },
+    "tmax": 1000,
+    "imp": [
+      {
+        "id": "some-impression-id",
+        "ext": {
+          "appnexus": {
+            "placementId": 12883451
+          }
+        },
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            },
+            {
+              "w": 300,
+              "h": 300
+            }
+          ]
+        }
+      }
+    ],
+    "source": {
+      "fd": 1,
+      "tid": "abc123",
+      "pchain": "tag_placement",
+      "schain": {
+        "complete": 1,
+        "nodes": [
+          {
+            "asi": "asi",
+            "sid": "sid",
+            "rid": "rid",
+            "ext": {}
+          }
+        ],
+        "ver": "ver",
+        "ext": {}
+      }
+    }
+  },
+  "expectedBidResponse": {
+    "id": "some-request-id",
+    "seatbid": [
+      {
+        "bid": [
+          {
+            "id": "appnexus-bid",
+            "impid": "some-impression-id",
+            "price": 0,
+            "ext": {
+              "origbidcpm": 0,
+              "origbidcur": "USD",
+              "prebid": {
+                "meta": {
+                  "adaptercode": "appnexus"
+                },
+                "type": "banner"
+              }
+            }
+          }
+        ],
+        "seat": "appnexus"
+      }
+    ],
+    "bidid": "test bid id",
+    "cur": "USD",
+    "nbr": 0
+  },
+  "expectedReturnCode": 200
+}
diff --git a/endpoints/openrtb2/sample-requests/valid-whole/supplementary/gdpr-conflict.json b/endpoints/openrtb2/sample-requests/valid-whole/supplementary/gdpr-conflict.json
index 3d6a0774b9d..9565e41af1f 100644
--- a/endpoints/openrtb2/sample-requests/valid-whole/supplementary/gdpr-conflict.json
+++ b/endpoints/openrtb2/sample-requests/valid-whole/supplementary/gdpr-conflict.json
@@ -37,10 +37,7 @@
     "regs": {
       "gpp": "DBACNYA~CPXxRfAPXxRfAAfKABENB-CgAAAAAAAAAAYgAAAAAAAA~1NYN",
       "gpp_sid": [6],
-      "gdpr": 1,
-      "ext": {
-        "us_privacy": "1YYY"
-      }
+      "gdpr": 1
     },
     "user": {
       "consent": "CPXxRfAPXxRfAAfKABENB-CgAAAAAAAAAAYgAAAAAAAA",
diff --git a/endpoints/openrtb2/sample-requests/valid-whole/supplementary/gdpr-conflict2.json b/endpoints/openrtb2/sample-requests/valid-whole/supplementary/gdpr-conflict2.json
index 2102a8cd44b..54477ed0986 100644
--- a/endpoints/openrtb2/sample-requests/valid-whole/supplementary/gdpr-conflict2.json
+++ b/endpoints/openrtb2/sample-requests/valid-whole/supplementary/gdpr-conflict2.json
@@ -37,10 +37,7 @@
     "regs": {
       "gpp": "DBACNYA~CPXxRfAPXxRfAAfKABENB-CgAAAAAAAAAAYgAAAAAAAA~1NYN",
       "gpp_sid": [2,6],
-      "gdpr": 1,
-      "ext": {
-        "us_privacy": "1YYY"
-      }
+      "gdpr": 1
     },
     "user": {
       "consent": "Invalid",
diff --git a/endpoints/openrtb2/sample-requests/valid-whole/supplementary/us-privacy-invalid.json b/endpoints/openrtb2/sample-requests/valid-whole/supplementary/us-privacy-invalid.json
index 2ccdfb7ccdc..df2c426d0c3 100644
--- a/endpoints/openrtb2/sample-requests/valid-whole/supplementary/us-privacy-invalid.json
+++ b/endpoints/openrtb2/sample-requests/valid-whole/supplementary/us-privacy-invalid.json
@@ -35,9 +35,7 @@
       }
     ],
     "regs": {
-      "ext": {
-        "us_privacy": "{invalid}"
-      }
+      "us_privacy": "{invalid}"
     },
     "user": {
       "ext": {}
diff --git a/endpoints/openrtb2/test_utils.go b/endpoints/openrtb2/test_utils.go
index 331c0d57dfb..e869ded80b8 100644
--- a/endpoints/openrtb2/test_utils.go
+++ b/endpoints/openrtb2/test_utils.go
@@ -18,29 +18,29 @@ import (
 	"github.com/julienschmidt/httprouter"
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/prebid/openrtb/v20/openrtb3"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/analytics"
-	analyticsBuild "github.com/prebid/prebid-server/v2/analytics/build"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/exchange"
-	"github.com/prebid/prebid-server/v2/experiment/adscert"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/metrics"
-	metricsConfig "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/ortb"
-	pbc "github.com/prebid/prebid-server/v2/prebid_cache_client"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/empty_fetcher"
-	"github.com/prebid/prebid-server/v2/util/iputil"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/uuidutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/analytics"
+	analyticsBuild "github.com/prebid/prebid-server/v3/analytics/build"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/exchange"
+	"github.com/prebid/prebid-server/v3/experiment/adscert"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/metrics"
+	metricsConfig "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/ortb"
+	pbc "github.com/prebid/prebid-server/v3/prebid_cache_client"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/empty_fetcher"
+	"github.com/prebid/prebid-server/v3/util/iputil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/uuidutil"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 )
 
@@ -64,15 +64,16 @@ const (
 
 type testCase struct {
 	// Common
-	endpointType            int
-	Description             string            `json:"description"`
-	Config                  *testConfigValues `json:"config"`
-	BidRequest              json.RawMessage   `json:"mockBidRequest"`
-	ExpectedValidatedBidReq json.RawMessage   `json:"expectedValidatedBidRequest"`
-	ExpectedReturnCode      int               `json:"expectedReturnCode,omitempty"`
-	ExpectedErrorMessage    string            `json:"expectedErrorMessage"`
-	Query                   string            `json:"query"`
-	planBuilder             hooks.ExecutionPlanBuilder
+	endpointType               int
+	Description                string                     `json:"description"`
+	Config                     *testConfigValues          `json:"config"`
+	BidRequest                 json.RawMessage            `json:"mockBidRequest"`
+	ExpectedValidatedBidReq    json.RawMessage            `json:"expectedValidatedBidRequest"`
+	ExpectedMockBidderRequests map[string]json.RawMessage `json:"expectedMockBidderRequests"`
+	ExpectedReturnCode         int                        `json:"expectedReturnCode,omitempty"`
+	ExpectedErrorMessage       string                     `json:"expectedErrorMessage"`
+	Query                      string                     `json:"query"`
+	planBuilder                hooks.ExecutionPlanBuilder
 
 	// "/openrtb2/auction" endpoint JSON test info
 	ExpectedBidResponse json.RawMessage `json:"expectedBidResponse"`
@@ -84,13 +85,20 @@ type testCase struct {
 }
 
 type testConfigValues struct {
-	AccountRequired     bool                          `json:"accountRequired"`
-	AliasJSON           string                        `json:"aliases"`
-	BlacklistedApps     []string                      `json:"blacklistedApps"`
-	DisabledAdapters    []string                      `json:"disabledAdapters"`
-	CurrencyRates       map[string]map[string]float64 `json:"currencyRates"`
-	MockBidders         []mockBidderHandler           `json:"mockBidders"`
-	RealParamsValidator bool                          `json:"realParamsValidator"`
+	AccountRequired     bool                           `json:"accountRequired"`
+	AliasJSON           string                         `json:"aliases"`
+	BlockedApps         []string                       `json:"blockedApps"`
+	DisabledAdapters    []string                       `json:"disabledAdapters"`
+	CurrencyRates       map[string]map[string]float64  `json:"currencyRates"`
+	MockBidders         []mockBidderHandler            `json:"mockBidders"`
+	RealParamsValidator bool                           `json:"realParamsValidator"`
+	BidderInfos         map[string]bidderInfoOverrides `json:"bidderInfoOverrides"`
+}
+type bidderInfoOverrides struct {
+	OpenRTB *OpenRTBInfo `json:"openrtb"`
+}
+type OpenRTBInfo struct {
+	Version string `json:"version"`
 }
 
 type brokenExchange struct{}
@@ -1002,6 +1010,7 @@ type mockAdapter struct {
 	mockServerURL string
 	Server        config.Server
 	seat          string
+	requestData   [][]byte
 }
 
 func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
@@ -1012,7 +1021,7 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 	return adapter, nil
 }
 
-func (a mockAdapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
+func (a *mockAdapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
 	var requests []*adapters.RequestData
 	var errors []error
 
@@ -1032,11 +1041,12 @@ func (a mockAdapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *ada
 			Body:   requestJSON,
 		}
 		requests = append(requests, requestData)
+		a.requestData = append(a.requestData, requestData.Body)
 	}
 	return requests, errors
 }
 
-func (a mockAdapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
+func (a *mockAdapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
 	if responseData.StatusCode != http.StatusOK {
 		switch responseData.StatusCode {
 		case http.StatusNoContent:
@@ -1159,27 +1169,40 @@ func parseTestData(fileData []byte, testFile string) (testCase, error) {
 		return parsedTestData, fmt.Errorf("Test case %s should come with either a valid expectedBidResponse or a valid expectedErrorMessage, not both.", testFile)
 	}
 
+	// Get optional expected validated bid request
+	parsedTestData.ExpectedValidatedBidReq, _, _, err = jsonparser.Get(fileData, "expectedValidatedBidRequest")
+
+	// Get optional expected mock bidder requests
+	jsonExpectedMockBidderRequests, _, _, err := jsonparser.Get(fileData, "expectedMockBidderRequests")
+	if err == nil && jsonExpectedMockBidderRequests != nil {
+		parsedTestData.ExpectedMockBidderRequests = make(map[string]json.RawMessage)
+		if err = jsonutil.UnmarshalValid(jsonExpectedMockBidderRequests, &parsedTestData.ExpectedMockBidderRequests); err != nil {
+			return parsedTestData, fmt.Errorf("Error unmarshaling root.expectedMockBidderRequests from file %s. Desc: %v.", testFile, err)
+		}
+	}
+
 	parsedTestData.ExpectedReturnCode = int(parsedReturnCode)
 
 	return parsedTestData, nil
 }
 
-func (tc *testConfigValues) getBlacklistedAppMap() map[string]bool {
-	var blacklistedAppMap map[string]bool
+func (tc *testConfigValues) getBlockedAppLookup() map[string]bool {
+	var blockedAppLookup map[string]bool
 
-	if len(tc.BlacklistedApps) > 0 {
-		blacklistedAppMap = make(map[string]bool, len(tc.BlacklistedApps))
-		for _, app := range tc.BlacklistedApps {
-			blacklistedAppMap[app] = true
+	if len(tc.BlockedApps) > 0 {
+		blockedAppLookup = make(map[string]bool, len(tc.BlockedApps))
+		for _, app := range tc.BlockedApps {
+			blockedAppLookup[app] = true
 		}
 	}
-	return blacklistedAppMap
+	return blockedAppLookup
 }
 
 // exchangeTestWrapper is a wrapper that asserts the openrtb2 bid request just before the HoldAuction call
 type exchangeTestWrapper struct {
 	ex                    exchange.Exchange
 	actualValidatedBidReq *openrtb2.BidRequest
+	adapters              map[openrtb_ext.BidderName]exchange.AdaptedBidder
 }
 
 func (te *exchangeTestWrapper) HoldAuction(ctx context.Context, r *exchange.AuctionRequest, debugLog *exchange.DebugLog) (*exchange.AuctionResponse, error) {
@@ -1206,7 +1229,7 @@ func buildTestExchange(testCfg *testConfigValues, adapterMap map[openrtb_ext.Bid
 		bidderAdapter := mockAdapter{mockServerURL: bidServer.URL, seat: mockBidder.Seat}
 		bidderName := openrtb_ext.BidderName(mockBidder.BidderName)
 
-		adapterMap[bidderName] = exchange.AdaptBidder(bidderAdapter, bidServer.Client(), &config.Configuration{}, &metricsConfig.NilMetricsEngine{}, bidderName, nil, "")
+		adapterMap[bidderName] = exchange.AdaptBidder(&bidderAdapter, bidServer.Client(), &config.Configuration{}, &metricsConfig.NilMetricsEngine{}, bidderName, nil, "")
 		mockBidServersArray = append(mockBidServersArray, bidServer)
 	}
 
@@ -1218,6 +1241,7 @@ func buildTestExchange(testCfg *testConfigValues, adapterMap map[openrtb_ext.Bid
 	}.Builder
 
 	testExchange := exchange.NewExchange(adapterMap,
+
 		&wellBehavedCache{},
 		cfg,
 		requestValidator,
@@ -1233,7 +1257,8 @@ func buildTestExchange(testCfg *testConfigValues, adapterMap map[openrtb_ext.Bid
 	)
 
 	testExchange = &exchangeTestWrapper{
-		ex: testExchange,
+		ex:       testExchange,
+		adapters: adapterMap,
 	}
 
 	return testExchange, mockBidServersArray
@@ -1257,6 +1282,18 @@ func buildTestEndpoint(test testCase, cfg *config.Configuration) (httprouter.Han
 	}
 
 	bidderInfos, _ := config.LoadBidderInfoFromDisk("../../static/bidder-info")
+	for bidder, overrides := range test.Config.BidderInfos {
+		if bi, ok := bidderInfos[bidder]; ok {
+			if overrides.OpenRTB != nil && len(overrides.OpenRTB.Version) > 0 {
+				if bi.OpenRTB == nil {
+					bi.OpenRTB = &config.OpenRTBInfo{}
+				}
+				bi.OpenRTB.Version = overrides.OpenRTB.Version
+				bidderInfos[bidder] = bi
+			}
+		}
+	}
+
 	enableBidders(bidderInfos)
 	disableBidders(test.Config.DisabledAdapters, bidderInfos)
 	bidderMap := exchange.GetActiveBidders(bidderInfos)
diff --git a/endpoints/openrtb2/video_auction.go b/endpoints/openrtb2/video_auction.go
index 2a9885e2731..cf18840fbd6 100644
--- a/endpoints/openrtb2/video_auction.go
+++ b/endpoints/openrtb2/video_auction.go
@@ -17,28 +17,28 @@ import (
 	"github.com/golang/glog"
 	"github.com/julienschmidt/httprouter"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/privacy"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/privacy"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 
-	accountService "github.com/prebid/prebid-server/v2/account"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/exchange"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/prebid_cache_client"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/empty_fetcher"
-	"github.com/prebid/prebid-server/v2/usersync"
-	"github.com/prebid/prebid-server/v2/util/iputil"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
-	"github.com/prebid/prebid-server/v2/util/uuidutil"
-	"github.com/prebid/prebid-server/v2/version"
+	accountService "github.com/prebid/prebid-server/v3/account"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/exchange"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/prebid_cache_client"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/empty_fetcher"
+	"github.com/prebid/prebid-server/v3/usersync"
+	"github.com/prebid/prebid-server/v3/util/iputil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/uuidutil"
+	"github.com/prebid/prebid-server/v3/version"
 )
 
 var defaultRequestTimeout int64 = 5000
@@ -260,6 +260,11 @@ func (deps *endpointDeps) VideoAuctionEndpoint(w http.ResponseWriter, r *http.Re
 	// all code after this line should use the bidReqWrapper instead of bidReq directly
 	bidReqWrapper := &openrtb_ext.RequestWrapper{BidRequest: bidReq}
 
+	if err := openrtb_ext.ConvertUpTo26(bidReqWrapper); err != nil {
+		handleError(&labels, w, []error{err}, &vo, &debugLog)
+		return
+	}
+
 	if err := ortb.SetDefaults(bidReqWrapper); err != nil {
 		handleError(&labels, w, errL, &vo, &debugLog)
 		return
@@ -411,9 +416,9 @@ func handleError(labels *metrics.Labels, w http.ResponseWriter, errL []error, vo
 	var status int = http.StatusInternalServerError
 	for _, er := range errL {
 		erVal := errortypes.ReadCode(er)
-		if erVal == errortypes.BlacklistedAppErrorCode || erVal == errortypes.AccountDisabledErrorCode {
+		if erVal == errortypes.BlockedAppErrorCode || erVal == errortypes.AccountDisabledErrorCode {
 			status = http.StatusServiceUnavailable
-			labels.RequestStatus = metrics.RequestStatusBlacklisted
+			labels.RequestStatus = metrics.RequestStatusBlockedApp
 			break
 		} else if erVal == errortypes.AcctRequiredErrorCode {
 			status = http.StatusBadRequest
@@ -813,8 +818,8 @@ func (deps *endpointDeps) validateVideoRequest(req *openrtb_ext.BidRequestVideo)
 		errL = append(errL, err)
 	} else if req.App != nil {
 		if req.App.ID != "" {
-			if _, found := deps.cfg.BlacklistedAppMap[req.App.ID]; found {
-				err := &errortypes.BlacklistedApp{Message: fmt.Sprintf("Prebid-server does not process requests from App ID: %s", req.App.ID)}
+			if _, found := deps.cfg.BlockedAppsLookup[req.App.ID]; found {
+				err := &errortypes.BlockedApp{Message: fmt.Sprintf("Prebid-server does not process requests from App ID: %s", req.App.ID)}
 				errL = append(errL, err)
 				return errL, podErrors
 			}
diff --git a/endpoints/openrtb2/video_auction_test.go b/endpoints/openrtb2/video_auction_test.go
index c9dff0f7c92..79eaaab980c 100644
--- a/endpoints/openrtb2/video_auction_test.go
+++ b/endpoints/openrtb2/video_auction_test.go
@@ -11,21 +11,21 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/analytics"
-	analyticsBuild "github.com/prebid/prebid-server/v2/analytics/build"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/exchange"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/metrics"
-	metricsConfig "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/prebid_cache_client"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/empty_fetcher"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/analytics"
+	analyticsBuild "github.com/prebid/prebid-server/v3/analytics/build"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/exchange"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/metrics"
+	metricsConfig "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/prebid_cache_client"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/empty_fetcher"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
@@ -814,15 +814,15 @@ func TestHandleError(t *testing.T) {
 				&errortypes.AccountDisabled{},
 			},
 			wantCode:          503,
-			wantMetricsStatus: metrics.RequestStatusBlacklisted,
+			wantMetricsStatus: metrics.RequestStatusBlockedApp,
 		},
 		{
 			description: "Blocked app - return 503 with blocked metrics status",
 			giveErrors: []error{
-				&errortypes.BlacklistedApp{},
+				&errortypes.BlockedApp{},
 			},
 			wantCode:          503,
-			wantMetricsStatus: metrics.RequestStatusBlacklisted,
+			wantMetricsStatus: metrics.RequestStatusBlockedApp,
 		},
 		{
 			description: "Account required error - return 400 with bad input metrics status",
@@ -1091,14 +1091,11 @@ func TestCCPA(t *testing.T) {
 		if ex.lastRequest == nil {
 			t.Fatalf("%s: The request never made it into the exchange.", test.description)
 		}
-		extRegs := &openrtb_ext.ExtRegs{}
-		if err := jsonutil.UnmarshalValid(ex.lastRequest.Regs.Ext, extRegs); err != nil {
-			t.Fatalf("%s: Failed to unmarshal reg.ext in request to the exchange: %v", test.description, err)
-		}
+
 		if test.expectConsentString {
-			assert.Len(t, extRegs.USPrivacy, 4, test.description+":consent")
+			assert.Len(t, ex.lastRequest.Regs.USPrivacy, 4, test.description+":consent")
 		} else if test.expectEmptyConsent {
-			assert.Empty(t, extRegs.USPrivacy, test.description+":consent")
+			assert.Empty(t, ex.lastRequest.Regs.USPrivacy, test.description+":consent")
 		}
 
 		// Validate HTTP Response
diff --git a/endpoints/setuid.go b/endpoints/setuid.go
index 5d91b3c8165..83587610030 100644
--- a/endpoints/setuid.go
+++ b/endpoints/setuid.go
@@ -12,19 +12,19 @@ import (
 	"github.com/julienschmidt/httprouter"
 	gpplib "github.com/prebid/go-gpp"
 	gppConstants "github.com/prebid/go-gpp/constants"
-	accountService "github.com/prebid/prebid-server/v2/account"
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/privacy"
-	gppPrivacy "github.com/prebid/prebid-server/v2/privacy/gpp"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/usersync"
-	"github.com/prebid/prebid-server/v2/util/httputil"
-	stringutil "github.com/prebid/prebid-server/v2/util/stringutil"
+	accountService "github.com/prebid/prebid-server/v3/account"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/privacy"
+	gppPrivacy "github.com/prebid/prebid-server/v3/privacy/gpp"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/usersync"
+	"github.com/prebid/prebid-server/v3/util/httputil"
+	stringutil "github.com/prebid/prebid-server/v3/util/stringutil"
 )
 
 const (
diff --git a/endpoints/setuid_test.go b/endpoints/setuid_test.go
index 87208a09114..78944da7c42 100644
--- a/endpoints/setuid_test.go
+++ b/endpoints/setuid_test.go
@@ -12,18 +12,18 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/analytics"
-	analyticsBuild "github.com/prebid/prebid-server/v2/analytics/build"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/usersync"
+	"github.com/prebid/prebid-server/v3/analytics"
+	analyticsBuild "github.com/prebid/prebid-server/v3/analytics/build"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/usersync"
 	"github.com/stretchr/testify/assert"
 
-	metricsConf "github.com/prebid/prebid-server/v2/metrics/config"
+	metricsConf "github.com/prebid/prebid-server/v3/metrics/config"
 )
 
 func TestSetUIDEndpoint(t *testing.T) {
diff --git a/endpoints/version.go b/endpoints/version.go
index f9e07da9a0d..8eb305c3f5e 100644
--- a/endpoints/version.go
+++ b/endpoints/version.go
@@ -5,7 +5,7 @@ import (
 	"net/http"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const versionEndpointValueNotSet = "not-set"
diff --git a/errortypes/code.go b/errortypes/code.go
index 552beffbcb8..49cb6d4bcf9 100644
--- a/errortypes/code.go
+++ b/errortypes/code.go
@@ -5,7 +5,7 @@ const (
 	UnknownErrorCode = 999
 	TimeoutErrorCode = iota
 	BadInputErrorCode
-	BlacklistedAppErrorCode
+	BlockedAppErrorCode
 	BadServerResponseErrorCode
 	FailedToRequestBidsErrorCode
 	BidderTemporarilyDisabledErrorCode
diff --git a/errortypes/errortypes.go b/errortypes/errortypes.go
index f23e1423977..4e51847b5ea 100644
--- a/errortypes/errortypes.go
+++ b/errortypes/errortypes.go
@@ -59,23 +59,20 @@ func (err *BadInput) Severity() Severity {
 	return SeverityFatal
 }
 
-// BlacklistedApp should be used when a request App.ID matches an entry in the BlacklistedApps
-// environment variable array
-//
-// These errors will be written to  http.ResponseWriter before canceling execution
-type BlacklistedApp struct {
+// BlockedApp should be used when a request App.ID matches an entry in the BlockedApp configuration.
+type BlockedApp struct {
 	Message string
 }
 
-func (err *BlacklistedApp) Error() string {
+func (err *BlockedApp) Error() string {
 	return err.Message
 }
 
-func (err *BlacklistedApp) Code() int {
-	return BlacklistedAppErrorCode
+func (err *BlockedApp) Code() int {
+	return BlockedAppErrorCode
 }
 
-func (err *BlacklistedApp) Severity() Severity {
+func (err *BlockedApp) Severity() Severity {
 	return SeverityFatal
 }
 
diff --git a/exchange/adapter_builders.go b/exchange/adapter_builders.go
index 7036b16ac7f..f2fffe56f14 100755
--- a/exchange/adapter_builders.go
+++ b/exchange/adapter_builders.go
@@ -1,229 +1,229 @@
 package exchange
 
 import (
-	"github.com/prebid/prebid-server/v2/adapters"
-	ttx "github.com/prebid/prebid-server/v2/adapters/33across"
-	"github.com/prebid/prebid-server/v2/adapters/aax"
-	"github.com/prebid/prebid-server/v2/adapters/aceex"
-	"github.com/prebid/prebid-server/v2/adapters/acuityads"
-	"github.com/prebid/prebid-server/v2/adapters/adelement"
-	"github.com/prebid/prebid-server/v2/adapters/adf"
-	"github.com/prebid/prebid-server/v2/adapters/adgeneration"
-	"github.com/prebid/prebid-server/v2/adapters/adhese"
-	"github.com/prebid/prebid-server/v2/adapters/adkernel"
-	"github.com/prebid/prebid-server/v2/adapters/adkernelAdn"
-	"github.com/prebid/prebid-server/v2/adapters/adman"
-	"github.com/prebid/prebid-server/v2/adapters/admatic"
-	"github.com/prebid/prebid-server/v2/adapters/admixer"
-	"github.com/prebid/prebid-server/v2/adapters/adnuntius"
-	"github.com/prebid/prebid-server/v2/adapters/adocean"
-	"github.com/prebid/prebid-server/v2/adapters/adoppler"
-	"github.com/prebid/prebid-server/v2/adapters/adot"
-	"github.com/prebid/prebid-server/v2/adapters/adpone"
-	"github.com/prebid/prebid-server/v2/adapters/adprime"
-	"github.com/prebid/prebid-server/v2/adapters/adquery"
-	"github.com/prebid/prebid-server/v2/adapters/adrino"
-	"github.com/prebid/prebid-server/v2/adapters/adsinteractive"
-	"github.com/prebid/prebid-server/v2/adapters/adtarget"
-	"github.com/prebid/prebid-server/v2/adapters/adtelligent"
-	"github.com/prebid/prebid-server/v2/adapters/adtonos"
-	"github.com/prebid/prebid-server/v2/adapters/adtrgtme"
-	"github.com/prebid/prebid-server/v2/adapters/advangelists"
-	"github.com/prebid/prebid-server/v2/adapters/adview"
-	"github.com/prebid/prebid-server/v2/adapters/adxcg"
-	"github.com/prebid/prebid-server/v2/adapters/adyoulike"
-	"github.com/prebid/prebid-server/v2/adapters/aidem"
-	"github.com/prebid/prebid-server/v2/adapters/aja"
-	"github.com/prebid/prebid-server/v2/adapters/algorix"
-	"github.com/prebid/prebid-server/v2/adapters/alkimi"
-	"github.com/prebid/prebid-server/v2/adapters/amx"
-	"github.com/prebid/prebid-server/v2/adapters/apacdex"
-	"github.com/prebid/prebid-server/v2/adapters/appnexus"
-	"github.com/prebid/prebid-server/v2/adapters/appush"
-	"github.com/prebid/prebid-server/v2/adapters/aso"
-	"github.com/prebid/prebid-server/v2/adapters/audienceNetwork"
-	"github.com/prebid/prebid-server/v2/adapters/automatad"
-	"github.com/prebid/prebid-server/v2/adapters/avocet"
-	"github.com/prebid/prebid-server/v2/adapters/axis"
-	"github.com/prebid/prebid-server/v2/adapters/axonix"
-	"github.com/prebid/prebid-server/v2/adapters/beachfront"
-	"github.com/prebid/prebid-server/v2/adapters/beintoo"
-	"github.com/prebid/prebid-server/v2/adapters/bematterfull"
-	"github.com/prebid/prebid-server/v2/adapters/between"
-	"github.com/prebid/prebid-server/v2/adapters/beyondmedia"
-	"github.com/prebid/prebid-server/v2/adapters/bidmachine"
-	"github.com/prebid/prebid-server/v2/adapters/bidmatic"
-	"github.com/prebid/prebid-server/v2/adapters/bidmyadz"
-	"github.com/prebid/prebid-server/v2/adapters/bidscube"
-	"github.com/prebid/prebid-server/v2/adapters/bidstack"
-	"github.com/prebid/prebid-server/v2/adapters/bigoad"
-	"github.com/prebid/prebid-server/v2/adapters/blasto"
-	"github.com/prebid/prebid-server/v2/adapters/bliink"
-	"github.com/prebid/prebid-server/v2/adapters/blue"
-	"github.com/prebid/prebid-server/v2/adapters/bluesea"
-	"github.com/prebid/prebid-server/v2/adapters/bmtm"
-	"github.com/prebid/prebid-server/v2/adapters/boldwin"
-	"github.com/prebid/prebid-server/v2/adapters/brave"
-	"github.com/prebid/prebid-server/v2/adapters/bwx"
-	cadentaperturemx "github.com/prebid/prebid-server/v2/adapters/cadent_aperture_mx"
-	"github.com/prebid/prebid-server/v2/adapters/ccx"
-	"github.com/prebid/prebid-server/v2/adapters/cointraffic"
-	"github.com/prebid/prebid-server/v2/adapters/coinzilla"
-	"github.com/prebid/prebid-server/v2/adapters/colossus"
-	"github.com/prebid/prebid-server/v2/adapters/compass"
-	"github.com/prebid/prebid-server/v2/adapters/concert"
-	"github.com/prebid/prebid-server/v2/adapters/connatix"
-	"github.com/prebid/prebid-server/v2/adapters/connectad"
-	"github.com/prebid/prebid-server/v2/adapters/consumable"
-	"github.com/prebid/prebid-server/v2/adapters/conversant"
-	"github.com/prebid/prebid-server/v2/adapters/copper6ssp"
-	"github.com/prebid/prebid-server/v2/adapters/cpmstar"
-	"github.com/prebid/prebid-server/v2/adapters/criteo"
-	"github.com/prebid/prebid-server/v2/adapters/cwire"
-	"github.com/prebid/prebid-server/v2/adapters/datablocks"
-	"github.com/prebid/prebid-server/v2/adapters/decenterads"
-	"github.com/prebid/prebid-server/v2/adapters/deepintent"
-	"github.com/prebid/prebid-server/v2/adapters/definemedia"
-	"github.com/prebid/prebid-server/v2/adapters/dianomi"
-	"github.com/prebid/prebid-server/v2/adapters/displayio"
-	"github.com/prebid/prebid-server/v2/adapters/dmx"
-	"github.com/prebid/prebid-server/v2/adapters/driftpixel"
-	"github.com/prebid/prebid-server/v2/adapters/dxkulture"
-	evolution "github.com/prebid/prebid-server/v2/adapters/e_volution"
-	"github.com/prebid/prebid-server/v2/adapters/edge226"
-	"github.com/prebid/prebid-server/v2/adapters/emtv"
-	"github.com/prebid/prebid-server/v2/adapters/eplanning"
-	"github.com/prebid/prebid-server/v2/adapters/epom"
-	"github.com/prebid/prebid-server/v2/adapters/escalax"
-	"github.com/prebid/prebid-server/v2/adapters/flipp"
-	"github.com/prebid/prebid-server/v2/adapters/freewheelssp"
-	"github.com/prebid/prebid-server/v2/adapters/frvradn"
-	"github.com/prebid/prebid-server/v2/adapters/gamma"
-	"github.com/prebid/prebid-server/v2/adapters/gamoshi"
-	"github.com/prebid/prebid-server/v2/adapters/globalsun"
-	"github.com/prebid/prebid-server/v2/adapters/gothamads"
-	"github.com/prebid/prebid-server/v2/adapters/grid"
-	"github.com/prebid/prebid-server/v2/adapters/gumgum"
-	"github.com/prebid/prebid-server/v2/adapters/huaweiads"
-	"github.com/prebid/prebid-server/v2/adapters/imds"
-	"github.com/prebid/prebid-server/v2/adapters/impactify"
-	"github.com/prebid/prebid-server/v2/adapters/improvedigital"
-	"github.com/prebid/prebid-server/v2/adapters/infytv"
-	"github.com/prebid/prebid-server/v2/adapters/inmobi"
-	"github.com/prebid/prebid-server/v2/adapters/interactiveoffers"
-	"github.com/prebid/prebid-server/v2/adapters/invibes"
-	"github.com/prebid/prebid-server/v2/adapters/iqx"
-	"github.com/prebid/prebid-server/v2/adapters/iqzone"
-	"github.com/prebid/prebid-server/v2/adapters/ix"
-	"github.com/prebid/prebid-server/v2/adapters/jixie"
-	"github.com/prebid/prebid-server/v2/adapters/kargo"
-	"github.com/prebid/prebid-server/v2/adapters/kayzen"
-	"github.com/prebid/prebid-server/v2/adapters/kidoz"
-	"github.com/prebid/prebid-server/v2/adapters/kiviads"
-	"github.com/prebid/prebid-server/v2/adapters/krushmedia"
-	"github.com/prebid/prebid-server/v2/adapters/lemmadigital"
-	"github.com/prebid/prebid-server/v2/adapters/limelightDigital"
-	lmkiviads "github.com/prebid/prebid-server/v2/adapters/lm_kiviads"
-	"github.com/prebid/prebid-server/v2/adapters/lockerdome"
-	"github.com/prebid/prebid-server/v2/adapters/logan"
-	"github.com/prebid/prebid-server/v2/adapters/logicad"
-	"github.com/prebid/prebid-server/v2/adapters/loyal"
-	"github.com/prebid/prebid-server/v2/adapters/lunamedia"
-	"github.com/prebid/prebid-server/v2/adapters/mabidder"
-	"github.com/prebid/prebid-server/v2/adapters/madvertise"
-	"github.com/prebid/prebid-server/v2/adapters/marsmedia"
-	"github.com/prebid/prebid-server/v2/adapters/mediago"
-	"github.com/prebid/prebid-server/v2/adapters/medianet"
-	"github.com/prebid/prebid-server/v2/adapters/melozen"
-	"github.com/prebid/prebid-server/v2/adapters/metax"
-	"github.com/prebid/prebid-server/v2/adapters/mgid"
-	"github.com/prebid/prebid-server/v2/adapters/mgidX"
-	"github.com/prebid/prebid-server/v2/adapters/minutemedia"
-	"github.com/prebid/prebid-server/v2/adapters/mobfoxpb"
-	"github.com/prebid/prebid-server/v2/adapters/mobilefuse"
-	"github.com/prebid/prebid-server/v2/adapters/motorik"
-	"github.com/prebid/prebid-server/v2/adapters/nextmillennium"
-	"github.com/prebid/prebid-server/v2/adapters/nobid"
-	"github.com/prebid/prebid-server/v2/adapters/oms"
-	"github.com/prebid/prebid-server/v2/adapters/onetag"
-	"github.com/prebid/prebid-server/v2/adapters/openweb"
-	"github.com/prebid/prebid-server/v2/adapters/openx"
-	"github.com/prebid/prebid-server/v2/adapters/operaads"
-	"github.com/prebid/prebid-server/v2/adapters/oraki"
-	"github.com/prebid/prebid-server/v2/adapters/orbidder"
-	"github.com/prebid/prebid-server/v2/adapters/outbrain"
-	"github.com/prebid/prebid-server/v2/adapters/ownadx"
-	"github.com/prebid/prebid-server/v2/adapters/pangle"
-	"github.com/prebid/prebid-server/v2/adapters/pgamssp"
-	"github.com/prebid/prebid-server/v2/adapters/playdigo"
-	"github.com/prebid/prebid-server/v2/adapters/pubmatic"
-	"github.com/prebid/prebid-server/v2/adapters/pubnative"
-	"github.com/prebid/prebid-server/v2/adapters/pubrise"
-	"github.com/prebid/prebid-server/v2/adapters/pulsepoint"
-	"github.com/prebid/prebid-server/v2/adapters/pwbid"
-	"github.com/prebid/prebid-server/v2/adapters/qt"
-	"github.com/prebid/prebid-server/v2/adapters/readpeak"
-	"github.com/prebid/prebid-server/v2/adapters/relevantdigital"
-	"github.com/prebid/prebid-server/v2/adapters/revcontent"
-	"github.com/prebid/prebid-server/v2/adapters/richaudience"
-	"github.com/prebid/prebid-server/v2/adapters/rise"
-	"github.com/prebid/prebid-server/v2/adapters/roulax"
-	"github.com/prebid/prebid-server/v2/adapters/rtbhouse"
-	"github.com/prebid/prebid-server/v2/adapters/rubicon"
-	salunamedia "github.com/prebid/prebid-server/v2/adapters/sa_lunamedia"
-	"github.com/prebid/prebid-server/v2/adapters/screencore"
-	"github.com/prebid/prebid-server/v2/adapters/seedingAlliance"
-	"github.com/prebid/prebid-server/v2/adapters/sharethrough"
-	"github.com/prebid/prebid-server/v2/adapters/silvermob"
-	"github.com/prebid/prebid-server/v2/adapters/silverpush"
-	"github.com/prebid/prebid-server/v2/adapters/smaato"
-	"github.com/prebid/prebid-server/v2/adapters/smartadserver"
-	"github.com/prebid/prebid-server/v2/adapters/smarthub"
-	"github.com/prebid/prebid-server/v2/adapters/smartrtb"
-	"github.com/prebid/prebid-server/v2/adapters/smartx"
-	"github.com/prebid/prebid-server/v2/adapters/smartyads"
-	"github.com/prebid/prebid-server/v2/adapters/smilewanted"
-	"github.com/prebid/prebid-server/v2/adapters/smrtconnect"
-	"github.com/prebid/prebid-server/v2/adapters/sonobi"
-	"github.com/prebid/prebid-server/v2/adapters/sovrn"
-	"github.com/prebid/prebid-server/v2/adapters/sovrnXsp"
-	"github.com/prebid/prebid-server/v2/adapters/sspBC"
-	"github.com/prebid/prebid-server/v2/adapters/stroeerCore"
-	"github.com/prebid/prebid-server/v2/adapters/taboola"
-	"github.com/prebid/prebid-server/v2/adapters/tappx"
-	"github.com/prebid/prebid-server/v2/adapters/teads"
-	"github.com/prebid/prebid-server/v2/adapters/telaria"
-	"github.com/prebid/prebid-server/v2/adapters/theadx"
-	"github.com/prebid/prebid-server/v2/adapters/thetradedesk"
-	"github.com/prebid/prebid-server/v2/adapters/tpmn"
-	"github.com/prebid/prebid-server/v2/adapters/trafficgate"
-	"github.com/prebid/prebid-server/v2/adapters/triplelift"
-	"github.com/prebid/prebid-server/v2/adapters/triplelift_native"
-	"github.com/prebid/prebid-server/v2/adapters/trustedstack"
-	"github.com/prebid/prebid-server/v2/adapters/ucfunnel"
-	"github.com/prebid/prebid-server/v2/adapters/undertone"
-	"github.com/prebid/prebid-server/v2/adapters/unicorn"
-	"github.com/prebid/prebid-server/v2/adapters/unruly"
-	"github.com/prebid/prebid-server/v2/adapters/vidazoo"
-	"github.com/prebid/prebid-server/v2/adapters/videobyte"
-	"github.com/prebid/prebid-server/v2/adapters/videoheroes"
-	"github.com/prebid/prebid-server/v2/adapters/vidoomy"
-	"github.com/prebid/prebid-server/v2/adapters/visiblemeasures"
-	"github.com/prebid/prebid-server/v2/adapters/visx"
-	"github.com/prebid/prebid-server/v2/adapters/vox"
-	"github.com/prebid/prebid-server/v2/adapters/vrtcal"
-	"github.com/prebid/prebid-server/v2/adapters/vungle"
-	"github.com/prebid/prebid-server/v2/adapters/xeworks"
-	"github.com/prebid/prebid-server/v2/adapters/yahooAds"
-	"github.com/prebid/prebid-server/v2/adapters/yandex"
-	"github.com/prebid/prebid-server/v2/adapters/yeahmobi"
-	"github.com/prebid/prebid-server/v2/adapters/yieldlab"
-	"github.com/prebid/prebid-server/v2/adapters/yieldmo"
-	"github.com/prebid/prebid-server/v2/adapters/yieldone"
-	"github.com/prebid/prebid-server/v2/adapters/zeroclickfraud"
-	"github.com/prebid/prebid-server/v2/adapters/zeta_global_ssp"
-	"github.com/prebid/prebid-server/v2/adapters/zmaticoo"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	ttx "github.com/prebid/prebid-server/v3/adapters/33across"
+	"github.com/prebid/prebid-server/v3/adapters/aax"
+	"github.com/prebid/prebid-server/v3/adapters/aceex"
+	"github.com/prebid/prebid-server/v3/adapters/acuityads"
+	"github.com/prebid/prebid-server/v3/adapters/adelement"
+	"github.com/prebid/prebid-server/v3/adapters/adf"
+	"github.com/prebid/prebid-server/v3/adapters/adgeneration"
+	"github.com/prebid/prebid-server/v3/adapters/adhese"
+	"github.com/prebid/prebid-server/v3/adapters/adkernel"
+	"github.com/prebid/prebid-server/v3/adapters/adkernelAdn"
+	"github.com/prebid/prebid-server/v3/adapters/adman"
+	"github.com/prebid/prebid-server/v3/adapters/admatic"
+	"github.com/prebid/prebid-server/v3/adapters/admixer"
+	"github.com/prebid/prebid-server/v3/adapters/adnuntius"
+	"github.com/prebid/prebid-server/v3/adapters/adocean"
+	"github.com/prebid/prebid-server/v3/adapters/adoppler"
+	"github.com/prebid/prebid-server/v3/adapters/adot"
+	"github.com/prebid/prebid-server/v3/adapters/adpone"
+	"github.com/prebid/prebid-server/v3/adapters/adprime"
+	"github.com/prebid/prebid-server/v3/adapters/adquery"
+	"github.com/prebid/prebid-server/v3/adapters/adrino"
+	"github.com/prebid/prebid-server/v3/adapters/adsinteractive"
+	"github.com/prebid/prebid-server/v3/adapters/adtarget"
+	"github.com/prebid/prebid-server/v3/adapters/adtelligent"
+	"github.com/prebid/prebid-server/v3/adapters/adtonos"
+	"github.com/prebid/prebid-server/v3/adapters/adtrgtme"
+	"github.com/prebid/prebid-server/v3/adapters/advangelists"
+	"github.com/prebid/prebid-server/v3/adapters/adview"
+	"github.com/prebid/prebid-server/v3/adapters/adxcg"
+	"github.com/prebid/prebid-server/v3/adapters/adyoulike"
+	"github.com/prebid/prebid-server/v3/adapters/aidem"
+	"github.com/prebid/prebid-server/v3/adapters/aja"
+	"github.com/prebid/prebid-server/v3/adapters/algorix"
+	"github.com/prebid/prebid-server/v3/adapters/alkimi"
+	"github.com/prebid/prebid-server/v3/adapters/amx"
+	"github.com/prebid/prebid-server/v3/adapters/apacdex"
+	"github.com/prebid/prebid-server/v3/adapters/appnexus"
+	"github.com/prebid/prebid-server/v3/adapters/appush"
+	"github.com/prebid/prebid-server/v3/adapters/aso"
+	"github.com/prebid/prebid-server/v3/adapters/audienceNetwork"
+	"github.com/prebid/prebid-server/v3/adapters/automatad"
+	"github.com/prebid/prebid-server/v3/adapters/avocet"
+	"github.com/prebid/prebid-server/v3/adapters/axis"
+	"github.com/prebid/prebid-server/v3/adapters/axonix"
+	"github.com/prebid/prebid-server/v3/adapters/beachfront"
+	"github.com/prebid/prebid-server/v3/adapters/beintoo"
+	"github.com/prebid/prebid-server/v3/adapters/bematterfull"
+	"github.com/prebid/prebid-server/v3/adapters/between"
+	"github.com/prebid/prebid-server/v3/adapters/beyondmedia"
+	"github.com/prebid/prebid-server/v3/adapters/bidmachine"
+	"github.com/prebid/prebid-server/v3/adapters/bidmatic"
+	"github.com/prebid/prebid-server/v3/adapters/bidmyadz"
+	"github.com/prebid/prebid-server/v3/adapters/bidscube"
+	"github.com/prebid/prebid-server/v3/adapters/bidstack"
+	"github.com/prebid/prebid-server/v3/adapters/bigoad"
+	"github.com/prebid/prebid-server/v3/adapters/blasto"
+	"github.com/prebid/prebid-server/v3/adapters/bliink"
+	"github.com/prebid/prebid-server/v3/adapters/blue"
+	"github.com/prebid/prebid-server/v3/adapters/bluesea"
+	"github.com/prebid/prebid-server/v3/adapters/bmtm"
+	"github.com/prebid/prebid-server/v3/adapters/boldwin"
+	"github.com/prebid/prebid-server/v3/adapters/brave"
+	"github.com/prebid/prebid-server/v3/adapters/bwx"
+	cadentaperturemx "github.com/prebid/prebid-server/v3/adapters/cadent_aperture_mx"
+	"github.com/prebid/prebid-server/v3/adapters/ccx"
+	"github.com/prebid/prebid-server/v3/adapters/cointraffic"
+	"github.com/prebid/prebid-server/v3/adapters/coinzilla"
+	"github.com/prebid/prebid-server/v3/adapters/colossus"
+	"github.com/prebid/prebid-server/v3/adapters/compass"
+	"github.com/prebid/prebid-server/v3/adapters/concert"
+	"github.com/prebid/prebid-server/v3/adapters/connectad"
+	"github.com/prebid/prebid-server/v3/adapters/consumable"
+	"github.com/prebid/prebid-server/v3/adapters/conversant"
+	"github.com/prebid/prebid-server/v3/adapters/copper6ssp"
+	"github.com/prebid/prebid-server/v3/adapters/cpmstar"
+	"github.com/prebid/prebid-server/v3/adapters/criteo"
+	"github.com/prebid/prebid-server/v3/adapters/cwire"
+	"github.com/prebid/prebid-server/v3/adapters/datablocks"
+	"github.com/prebid/prebid-server/v3/adapters/decenterads"
+	"github.com/prebid/prebid-server/v3/adapters/deepintent"
+	"github.com/prebid/prebid-server/v3/adapters/definemedia"
+	"github.com/prebid/prebid-server/v3/adapters/dianomi"
+	"github.com/prebid/prebid-server/v3/adapters/displayio"
+	"github.com/prebid/prebid-server/v3/adapters/dmx"
+	"github.com/prebid/prebid-server/v3/adapters/driftpixel"
+	"github.com/prebid/prebid-server/v3/adapters/dxkulture"
+	evolution "github.com/prebid/prebid-server/v3/adapters/e_volution"
+	"github.com/prebid/prebid-server/v3/adapters/edge226"
+	"github.com/prebid/prebid-server/v3/adapters/emtv"
+	"github.com/prebid/prebid-server/v3/adapters/eplanning"
+	"github.com/prebid/prebid-server/v3/adapters/epom"
+	"github.com/prebid/prebid-server/v3/adapters/escalax"
+	"github.com/prebid/prebid-server/v3/adapters/flipp"
+	"github.com/prebid/prebid-server/v3/adapters/freewheelssp"
+	"github.com/prebid/prebid-server/v3/adapters/frvradn"
+	"github.com/prebid/prebid-server/v3/adapters/gamma"
+	"github.com/prebid/prebid-server/v3/adapters/gamoshi"
+	"github.com/prebid/prebid-server/v3/adapters/globalsun"
+	"github.com/prebid/prebid-server/v3/adapters/gothamads"
+	"github.com/prebid/prebid-server/v3/adapters/grid"
+	"github.com/prebid/prebid-server/v3/adapters/gumgum"
+	"github.com/prebid/prebid-server/v3/adapters/huaweiads"
+	"github.com/prebid/prebid-server/v3/adapters/imds"
+	"github.com/prebid/prebid-server/v3/adapters/impactify"
+	"github.com/prebid/prebid-server/v3/adapters/improvedigital"
+	"github.com/prebid/prebid-server/v3/adapters/infytv"
+	"github.com/prebid/prebid-server/v3/adapters/inmobi"
+	"github.com/prebid/prebid-server/v3/adapters/interactiveoffers"
+	"github.com/prebid/prebid-server/v3/adapters/invibes"
+	"github.com/prebid/prebid-server/v3/adapters/iqx"
+	"github.com/prebid/prebid-server/v3/adapters/iqzone"
+	"github.com/prebid/prebid-server/v3/adapters/ix"
+	"github.com/prebid/prebid-server/v3/adapters/jixie"
+	"github.com/prebid/prebid-server/v3/adapters/kargo"
+	"github.com/prebid/prebid-server/v3/adapters/kayzen"
+	"github.com/prebid/prebid-server/v3/adapters/kidoz"
+	"github.com/prebid/prebid-server/v3/adapters/kiviads"
+	"github.com/prebid/prebid-server/v3/adapters/krushmedia"
+	"github.com/prebid/prebid-server/v3/adapters/lemmadigital"
+	"github.com/prebid/prebid-server/v3/adapters/limelightDigital"
+	lmkiviads "github.com/prebid/prebid-server/v3/adapters/lm_kiviads"
+	"github.com/prebid/prebid-server/v3/adapters/lockerdome"
+	"github.com/prebid/prebid-server/v3/adapters/logan"
+	"github.com/prebid/prebid-server/v3/adapters/logicad"
+	"github.com/prebid/prebid-server/v3/adapters/loyal"
+	"github.com/prebid/prebid-server/v3/adapters/lunamedia"
+	"github.com/prebid/prebid-server/v3/adapters/mabidder"
+	"github.com/prebid/prebid-server/v3/adapters/madvertise"
+	"github.com/prebid/prebid-server/v3/adapters/marsmedia"
+	"github.com/prebid/prebid-server/v3/adapters/mediago"
+	"github.com/prebid/prebid-server/v3/adapters/medianet"
+	"github.com/prebid/prebid-server/v3/adapters/melozen"
+	"github.com/prebid/prebid-server/v3/adapters/metax"
+	"github.com/prebid/prebid-server/v3/adapters/mgid"
+	"github.com/prebid/prebid-server/v3/adapters/mgidX"
+	"github.com/prebid/prebid-server/v3/adapters/minutemedia"
+	"github.com/prebid/prebid-server/v3/adapters/missena"
+	"github.com/prebid/prebid-server/v3/adapters/mobfoxpb"
+	"github.com/prebid/prebid-server/v3/adapters/mobilefuse"
+	"github.com/prebid/prebid-server/v3/adapters/motorik"
+	"github.com/prebid/prebid-server/v3/adapters/nextmillennium"
+	"github.com/prebid/prebid-server/v3/adapters/nobid"
+	"github.com/prebid/prebid-server/v3/adapters/oms"
+	"github.com/prebid/prebid-server/v3/adapters/onetag"
+	"github.com/prebid/prebid-server/v3/adapters/openweb"
+	"github.com/prebid/prebid-server/v3/adapters/openx"
+	"github.com/prebid/prebid-server/v3/adapters/operaads"
+	"github.com/prebid/prebid-server/v3/adapters/oraki"
+	"github.com/prebid/prebid-server/v3/adapters/orbidder"
+	"github.com/prebid/prebid-server/v3/adapters/outbrain"
+	"github.com/prebid/prebid-server/v3/adapters/ownadx"
+	"github.com/prebid/prebid-server/v3/adapters/pangle"
+	"github.com/prebid/prebid-server/v3/adapters/pgamssp"
+	"github.com/prebid/prebid-server/v3/adapters/playdigo"
+	"github.com/prebid/prebid-server/v3/adapters/pubmatic"
+	"github.com/prebid/prebid-server/v3/adapters/pubnative"
+	"github.com/prebid/prebid-server/v3/adapters/pubrise"
+	"github.com/prebid/prebid-server/v3/adapters/pulsepoint"
+	"github.com/prebid/prebid-server/v3/adapters/pwbid"
+	"github.com/prebid/prebid-server/v3/adapters/qt"
+	"github.com/prebid/prebid-server/v3/adapters/readpeak"
+	"github.com/prebid/prebid-server/v3/adapters/relevantdigital"
+	"github.com/prebid/prebid-server/v3/adapters/revcontent"
+	"github.com/prebid/prebid-server/v3/adapters/richaudience"
+	"github.com/prebid/prebid-server/v3/adapters/rise"
+	"github.com/prebid/prebid-server/v3/adapters/roulax"
+	"github.com/prebid/prebid-server/v3/adapters/rtbhouse"
+	"github.com/prebid/prebid-server/v3/adapters/rubicon"
+	salunamedia "github.com/prebid/prebid-server/v3/adapters/sa_lunamedia"
+	"github.com/prebid/prebid-server/v3/adapters/screencore"
+	"github.com/prebid/prebid-server/v3/adapters/seedingAlliance"
+	"github.com/prebid/prebid-server/v3/adapters/sharethrough"
+	"github.com/prebid/prebid-server/v3/adapters/silvermob"
+	"github.com/prebid/prebid-server/v3/adapters/silverpush"
+	"github.com/prebid/prebid-server/v3/adapters/smaato"
+	"github.com/prebid/prebid-server/v3/adapters/smartadserver"
+	"github.com/prebid/prebid-server/v3/adapters/smarthub"
+	"github.com/prebid/prebid-server/v3/adapters/smartrtb"
+	"github.com/prebid/prebid-server/v3/adapters/smartx"
+	"github.com/prebid/prebid-server/v3/adapters/smartyads"
+	"github.com/prebid/prebid-server/v3/adapters/smilewanted"
+	"github.com/prebid/prebid-server/v3/adapters/smrtconnect"
+	"github.com/prebid/prebid-server/v3/adapters/sonobi"
+	"github.com/prebid/prebid-server/v3/adapters/sovrn"
+	"github.com/prebid/prebid-server/v3/adapters/sovrnXsp"
+	"github.com/prebid/prebid-server/v3/adapters/sspBC"
+	"github.com/prebid/prebid-server/v3/adapters/stroeerCore"
+	"github.com/prebid/prebid-server/v3/adapters/taboola"
+	"github.com/prebid/prebid-server/v3/adapters/tappx"
+	"github.com/prebid/prebid-server/v3/adapters/teads"
+	"github.com/prebid/prebid-server/v3/adapters/telaria"
+	"github.com/prebid/prebid-server/v3/adapters/theadx"
+	"github.com/prebid/prebid-server/v3/adapters/thetradedesk"
+	"github.com/prebid/prebid-server/v3/adapters/tpmn"
+	"github.com/prebid/prebid-server/v3/adapters/trafficgate"
+	"github.com/prebid/prebid-server/v3/adapters/triplelift"
+	"github.com/prebid/prebid-server/v3/adapters/triplelift_native"
+	"github.com/prebid/prebid-server/v3/adapters/trustedstack"
+	"github.com/prebid/prebid-server/v3/adapters/ucfunnel"
+	"github.com/prebid/prebid-server/v3/adapters/undertone"
+	"github.com/prebid/prebid-server/v3/adapters/unicorn"
+	"github.com/prebid/prebid-server/v3/adapters/unruly"
+	"github.com/prebid/prebid-server/v3/adapters/vidazoo"
+	"github.com/prebid/prebid-server/v3/adapters/videobyte"
+	"github.com/prebid/prebid-server/v3/adapters/videoheroes"
+	"github.com/prebid/prebid-server/v3/adapters/vidoomy"
+	"github.com/prebid/prebid-server/v3/adapters/visiblemeasures"
+	"github.com/prebid/prebid-server/v3/adapters/visx"
+	"github.com/prebid/prebid-server/v3/adapters/vox"
+	"github.com/prebid/prebid-server/v3/adapters/vrtcal"
+	"github.com/prebid/prebid-server/v3/adapters/vungle"
+	"github.com/prebid/prebid-server/v3/adapters/xeworks"
+	"github.com/prebid/prebid-server/v3/adapters/yahooAds"
+	"github.com/prebid/prebid-server/v3/adapters/yandex"
+	"github.com/prebid/prebid-server/v3/adapters/yeahmobi"
+	"github.com/prebid/prebid-server/v3/adapters/yieldlab"
+	"github.com/prebid/prebid-server/v3/adapters/yieldmo"
+	"github.com/prebid/prebid-server/v3/adapters/yieldone"
+	"github.com/prebid/prebid-server/v3/adapters/zeroclickfraud"
+	"github.com/prebid/prebid-server/v3/adapters/zeta_global_ssp"
+	"github.com/prebid/prebid-server/v3/adapters/zmaticoo"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // Adapter registration is kept in this separate file for ease of use and to aid
@@ -371,6 +371,7 @@ func newAdapterBuilders() map[openrtb_ext.BidderName]adapters.Builder {
 		openrtb_ext.BidderMgid:              mgid.Builder,
 		openrtb_ext.BidderMgidX:             mgidX.Builder,
 		openrtb_ext.BidderMinuteMedia:       minutemedia.Builder,
+		openrtb_ext.BidderMissena:           missena.Builder,
 		openrtb_ext.BidderMobfoxpb:          mobfoxpb.Builder,
 		openrtb_ext.BidderMobileFuse:        mobilefuse.Builder,
 		openrtb_ext.BidderMotorik:           motorik.Builder,
diff --git a/exchange/adapter_util.go b/exchange/adapter_util.go
index 73f17e609c2..e70c32055a0 100644
--- a/exchange/adapter_util.go
+++ b/exchange/adapter_util.go
@@ -4,10 +4,10 @@ import (
 	"fmt"
 	"net/http"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func BuildAdapters(client *http.Client, cfg *config.Configuration, infos config.BidderInfos, me metrics.MetricsEngine) (map[openrtb_ext.BidderName]AdaptedBidder, []error) {
diff --git a/exchange/adapter_util_test.go b/exchange/adapter_util_test.go
index 053b669961d..3f558af5610 100644
--- a/exchange/adapter_util_test.go
+++ b/exchange/adapter_util_test.go
@@ -6,12 +6,12 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adapters/appnexus"
-	"github.com/prebid/prebid-server/v2/adapters/rubicon"
-	"github.com/prebid/prebid-server/v2/config"
-	metrics "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adapters/appnexus"
+	"github.com/prebid/prebid-server/v3/adapters/rubicon"
+	"github.com/prebid/prebid-server/v3/config"
+	metrics "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
diff --git a/exchange/auction.go b/exchange/auction.go
index 8e3c432e48c..4d5b8e00375 100644
--- a/exchange/auction.go
+++ b/exchange/auction.go
@@ -12,11 +12,11 @@ import (
 
 	uuid "github.com/gofrs/uuid"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/prebid_cache_client"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/prebid_cache_client"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const (
diff --git a/exchange/auction_response.go b/exchange/auction_response.go
index 1d0747b0fe5..67ab2dc4bb1 100644
--- a/exchange/auction_response.go
+++ b/exchange/auction_response.go
@@ -2,7 +2,7 @@ package exchange
 
 import (
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // AuctionResponse contains OpenRTB Bid Response object and its extension (un-marshalled) object
diff --git a/exchange/auction_test.go b/exchange/auction_test.go
index 17224dcd2fd..188e4d30eaa 100644
--- a/exchange/auction_test.go
+++ b/exchange/auction_test.go
@@ -12,12 +12,12 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/prebid_cache_client"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/prebid_cache_client"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 
 	"github.com/stretchr/testify/assert"
 )
diff --git a/exchange/bidder.go b/exchange/bidder.go
index cfaea36c0bb..232da470fba 100644
--- a/exchange/bidder.go
+++ b/exchange/bidder.go
@@ -17,24 +17,24 @@ import (
 	"time"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/bidadjustment"
-	"github.com/prebid/prebid-server/v2/config/util"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/experiment/adscert"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/version"
+	"github.com/prebid/prebid-server/v3/bidadjustment"
+	"github.com/prebid/prebid-server/v3/config/util"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/experiment/adscert"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/version"
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	nativeRequests "github.com/prebid/openrtb/v20/native1/request"
 	nativeResponse "github.com/prebid/openrtb/v20/native1/response"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"golang.org/x/net/context/ctxhttp"
 )
 
@@ -98,7 +98,7 @@ const (
 // The name refers to the "Adapter" architecture pattern, and should not be confused with a Prebid "Adapter"
 // (which is being phased out and replaced by Bidder for OpenRTB auctions)
 func AdaptBidder(bidder adapters.Bidder, client *http.Client, cfg *config.Configuration, me metrics.MetricsEngine, name openrtb_ext.BidderName, debugInfo *config.DebugInfo, endpointCompression string) AdaptedBidder {
-	return &bidderAdapter{
+	return &BidderAdapter{
 		Bidder:     bidder,
 		BidderName: name,
 		Client:     client,
@@ -119,7 +119,7 @@ func parseDebugInfo(info *config.DebugInfo) bool {
 	return info.Allow
 }
 
-type bidderAdapter struct {
+type BidderAdapter struct {
 	Bidder     adapters.Bidder
 	BidderName openrtb_ext.BidderName
 	Client     *http.Client
@@ -134,7 +134,7 @@ type bidderAdapterConfig struct {
 	EndpointCompression string
 }
 
-func (bidder *bidderAdapter) requestBid(ctx context.Context, bidderRequest BidderRequest, conversions currency.Conversions, reqInfo *adapters.ExtraRequestInfo, adsCertSigner adscert.Signer, bidRequestOptions bidRequestOptions, alternateBidderCodes openrtb_ext.ExtAlternateBidderCodes, hookExecutor hookexecution.StageExecutor, ruleToAdjustments openrtb_ext.AdjustmentsByDealID) ([]*entities.PbsOrtbSeatBid, extraBidderRespInfo, []error) {
+func (bidder *BidderAdapter) requestBid(ctx context.Context, bidderRequest BidderRequest, conversions currency.Conversions, reqInfo *adapters.ExtraRequestInfo, adsCertSigner adscert.Signer, bidRequestOptions bidRequestOptions, alternateBidderCodes openrtb_ext.ExtAlternateBidderCodes, hookExecutor hookexecution.StageExecutor, ruleToAdjustments openrtb_ext.AdjustmentsByDealID) ([]*entities.PbsOrtbSeatBid, extraBidderRespInfo, []error) {
 	request := openrtb_ext.RequestWrapper{BidRequest: bidderRequest.BidRequest}
 	reject := hookExecutor.ExecuteBidderRequestStage(&request, string(bidderRequest.BidderName))
 	seatNonBidBuilder := SeatNonBidBuilder{}
@@ -526,11 +526,11 @@ func makeExt(httpInfo *httpCallInfo) *openrtb_ext.ExtHttpCall {
 
 // doRequest makes a request, handles the response, and returns the data needed by the
 // Bidder interface.
-func (bidder *bidderAdapter) doRequest(ctx context.Context, req *adapters.RequestData, bidderRequestStartTime time.Time, tmaxAdjustments *TmaxAdjustmentsPreprocessed) *httpCallInfo {
+func (bidder *BidderAdapter) doRequest(ctx context.Context, req *adapters.RequestData, bidderRequestStartTime time.Time, tmaxAdjustments *TmaxAdjustmentsPreprocessed) *httpCallInfo {
 	return bidder.doRequestImpl(ctx, req, glog.Warningf, bidderRequestStartTime, tmaxAdjustments)
 }
 
-func (bidder *bidderAdapter) doRequestImpl(ctx context.Context, req *adapters.RequestData, logger util.LogMsg, bidderRequestStartTime time.Time, tmaxAdjustments *TmaxAdjustmentsPreprocessed) *httpCallInfo {
+func (bidder *BidderAdapter) doRequestImpl(ctx context.Context, req *adapters.RequestData, logger util.LogMsg, bidderRequestStartTime time.Time, tmaxAdjustments *TmaxAdjustmentsPreprocessed) *httpCallInfo {
 	requestBody, err := getRequestBody(req, bidder.config.EndpointCompression)
 	if err != nil {
 		return &httpCallInfo{
@@ -617,7 +617,7 @@ func (bidder *bidderAdapter) doRequestImpl(ctx context.Context, req *adapters.Re
 	}
 }
 
-func (bidder *bidderAdapter) doTimeoutNotification(timeoutBidder adapters.TimeoutBidder, req *adapters.RequestData, logger util.LogMsg) {
+func (bidder *BidderAdapter) doTimeoutNotification(timeoutBidder adapters.TimeoutBidder, req *adapters.RequestData, logger util.LogMsg) {
 	ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
 	defer cancel()
 	toReq, errL := timeoutBidder.MakeTimeoutNotification(req)
@@ -667,7 +667,7 @@ type httpCallInfo struct {
 // This function adds an httptrace.ClientTrace object to the context so, if connection with the bidder
 // endpoint is established, we can keep track of whether the connection was newly created, reused, and
 // the time from the connection request, to the connection creation.
-func (bidder *bidderAdapter) addClientTrace(ctx context.Context) context.Context {
+func (bidder *BidderAdapter) addClientTrace(ctx context.Context) context.Context {
 	var connStart, dnsStart, tlsStart time.Time
 
 	trace := &httptrace.ClientTrace{
diff --git a/exchange/bidder_test.go b/exchange/bidder_test.go
index 9d5faf47549..dbb167e053d 100644
--- a/exchange/bidder_test.go
+++ b/exchange/bidder_test.go
@@ -26,19 +26,19 @@ import (
 	nativeRequests "github.com/prebid/openrtb/v20/native1/request"
 	nativeResponse "github.com/prebid/openrtb/v20/native1/response"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/experiment/adscert"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/metrics"
-	metricsConfig "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
-	"github.com/prebid/prebid-server/v2/version"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/experiment/adscert"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/metrics"
+	metricsConfig "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/version"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 )
@@ -556,7 +556,7 @@ func TestBidderTimeout(t *testing.T) {
 	server := httptest.NewServer(handler)
 	defer server.Close()
 
-	bidder := &bidderAdapter{
+	bidder := &BidderAdapter{
 		Bidder:     &mixedMultiBidder{},
 		BidderName: openrtb_ext.BidderAppnexus,
 		Client:     server.Client(),
@@ -578,7 +578,7 @@ func TestBidderTimeout(t *testing.T) {
 // TestInvalidRequest makes sure that bidderAdapter.doRequest returns errors on bad requests.
 func TestInvalidRequest(t *testing.T) {
 	server := httptest.NewServer(mockHandler(200, "getBody", "postBody"))
-	bidder := &bidderAdapter{
+	bidder := &BidderAdapter{
 		Bidder: &mixedMultiBidder{},
 		Client: server.Client(),
 	}
@@ -599,7 +599,7 @@ func TestConnectionClose(t *testing.T) {
 	})
 	server = httptest.NewServer(handler)
 
-	bidder := &bidderAdapter{
+	bidder := &BidderAdapter{
 		Bidder:     &mixedMultiBidder{},
 		Client:     server.Client(),
 		BidderName: openrtb_ext.BidderAppnexus,
@@ -2149,7 +2149,7 @@ func TestCallRecordDNSTime(t *testing.T) {
 	// Instantiate the bidder that will send the request. We'll make sure to use an
 	// http.Client that runs our mock RoundTripper so DNSDone(httptrace.DNSDoneInfo{})
 	// gets called
-	bidder := &bidderAdapter{
+	bidder := &BidderAdapter{
 		Bidder: &mixedMultiBidder{},
 		Client: &http.Client{Transport: DNSDoneTripper{}},
 		me:     metricsMock,
@@ -2173,7 +2173,7 @@ func TestCallRecordTLSHandshakeTime(t *testing.T) {
 	// Instantiate the bidder that will send the request. We'll make sure to use an
 	// http.Client that runs our mock RoundTripper so DNSDone(httptrace.DNSDoneInfo{})
 	// gets called
-	bidder := &bidderAdapter{
+	bidder := &BidderAdapter{
 		Bidder: &mixedMultiBidder{},
 		Client: &http.Client{Transport: TLSHandshakeTripper{}},
 		me:     metricsMock,
@@ -2201,7 +2201,7 @@ func TestTimeoutNotificationOff(t *testing.T) {
 			Headers: http.Header{},
 		},
 	}
-	bidder := &bidderAdapter{
+	bidder := &BidderAdapter{
 		Bidder: bidderImpl,
 		Client: server.Client(),
 		config: bidderAdapterConfig{Debug: config.Debug{}},
@@ -2235,7 +2235,7 @@ func TestTimeoutNotificationOn(t *testing.T) {
 	// Wrap with BidderInfo to mimic exchange.go flow.
 	bidderWrappedWithInfo := wrapWithBidderInfo(bidder)
 
-	bidderAdapter := &bidderAdapter{
+	bidderAdapter := &BidderAdapter{
 		Bidder: bidderWrappedWithInfo,
 		Client: server.Client(),
 		config: bidderAdapterConfig{
@@ -3381,7 +3381,7 @@ func TestDoRequestImplWithTmax(t *testing.T) {
 		Body:   []byte(`{"id":"this-id","app":{"publisher":{"id":"pub-id"}}}`),
 	}
 
-	bidderAdapter := bidderAdapter{
+	bidderAdapter := BidderAdapter{
 		me:     &metricsConfig.NilMetricsEngine{},
 		Client: server.Client(),
 	}
@@ -3456,7 +3456,7 @@ func TestDoRequestImplWithTmaxTimeout(t *testing.T) {
 	metricsMock.On("RecordOverheadTime", metrics.PreBidder, mock.Anything).Once()
 	metricsMock.On("RecordTMaxTimeout").Once()
 
-	bidderAdapter := bidderAdapter{
+	bidderAdapter := BidderAdapter{
 		me:     metricsMock,
 		Client: server.Client(),
 	}
diff --git a/exchange/bidder_validate_bids.go b/exchange/bidder_validate_bids.go
index 0afa32a3321..d028008132d 100644
--- a/exchange/bidder_validate_bids.go
+++ b/exchange/bidder_validate_bids.go
@@ -7,12 +7,12 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/experiment/adscert"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/experiment/adscert"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	goCurrency "golang.org/x/text/currency"
 )
 
diff --git a/exchange/bidder_validate_bids_test.go b/exchange/bidder_validate_bids_test.go
index a488bf81150..e14efec4023 100644
--- a/exchange/bidder_validate_bids_test.go
+++ b/exchange/bidder_validate_bids_test.go
@@ -5,12 +5,12 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/experiment/adscert"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/experiment/adscert"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/exchange/entities/entities.go b/exchange/entities/entities.go
index c764fe82272..808125f1c1c 100644
--- a/exchange/entities/entities.go
+++ b/exchange/entities/entities.go
@@ -2,7 +2,7 @@ package entities
 
 import (
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // PbsOrtbSeatBid is a SeatBid returned by an AdaptedBidder.
diff --git a/exchange/events.go b/exchange/events.go
index b20eea328f6..d52db53aac6 100644
--- a/exchange/events.go
+++ b/exchange/events.go
@@ -3,14 +3,14 @@ package exchange
 import (
 	"time"
 
-	"github.com/prebid/prebid-server/v2/exchange/entities"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 
-	"github.com/prebid/prebid-server/v2/analytics"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/endpoints/events"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/analytics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/endpoints/events"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // eventTracking has configuration fields needed for adding event tracking to an auction response
diff --git a/exchange/events_test.go b/exchange/events_test.go
index a4ed587cd67..3f35ef517de 100644
--- a/exchange/events_test.go
+++ b/exchange/events_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/exchange/exchange.go b/exchange/exchange.go
index a8787ac3db2..9ab91ee9ea3 100644
--- a/exchange/exchange.go
+++ b/exchange/exchange.go
@@ -14,31 +14,31 @@ import (
 	"strings"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/privacy"
-
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/adservertargeting"
-	"github.com/prebid/prebid-server/v2/bidadjustment"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/dsa"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/experiment/adscert"
-	"github.com/prebid/prebid-server/v2/firstpartydata"
-	"github.com/prebid/prebid-server/v2/floors"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/prebid_cache_client"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_responses"
-	"github.com/prebid/prebid-server/v2/usersync"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/maputil"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/privacy"
+
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/adservertargeting"
+	"github.com/prebid/prebid-server/v3/bidadjustment"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/dsa"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/experiment/adscert"
+	"github.com/prebid/prebid-server/v3/firstpartydata"
+	"github.com/prebid/prebid-server/v3/floors"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/prebid_cache_client"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_responses"
+	"github.com/prebid/prebid-server/v3/usersync"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/maputil"
 
 	"github.com/buger/jsonparser"
 	"github.com/gofrs/uuid"
diff --git a/exchange/exchange_test.go b/exchange/exchange_test.go
index df272a1f5bf..87b53b101e0 100644
--- a/exchange/exchange_test.go
+++ b/exchange/exchange_test.go
@@ -20,30 +20,30 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/experiment/adscert"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/metrics"
-	metricsConf "github.com/prebid/prebid-server/v2/metrics/config"
-	metricsConfig "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/ortb"
-	pbc "github.com/prebid/prebid-server/v2/prebid_cache_client"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/file_fetcher"
-	"github.com/prebid/prebid-server/v2/stored_responses"
-	"github.com/prebid/prebid-server/v2/usersync"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/experiment/adscert"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/metrics"
+	metricsConf "github.com/prebid/prebid-server/v3/metrics/config"
+	metricsConfig "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/ortb"
+	pbc "github.com/prebid/prebid-server/v3/prebid_cache_client"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/file_fetcher"
+	"github.com/prebid/prebid-server/v3/stored_responses"
+	"github.com/prebid/prebid-server/v3/usersync"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
@@ -2146,7 +2146,7 @@ func runSpec(t *testing.T, filename string, spec *exchangeSpec) {
 	if spec.BidIDGenerator != nil {
 		bidIdGenerator = spec.BidIDGenerator
 	}
-	ex := newExchangeForTests(t, filename, spec.OutgoingRequests, aliases, privacyConfig, bidIdGenerator, spec.HostSChainFlag, spec.FloorsEnabled, spec.HostConfigBidValidation, spec.Server)
+	ex := newExchangeForTests(t, filename, aliases, privacyConfig, bidIdGenerator, spec)
 	biddersInAuction := findBiddersInAuction(t, filename, &spec.IncomingRequest.OrtbRequest)
 	debugLog := &DebugLog{}
 	if spec.DebugLog != nil {
@@ -2374,11 +2374,11 @@ func extractResponseTimes(t *testing.T, context string, bid *openrtb2.BidRespons
 	}
 }
 
-func newExchangeForTests(t *testing.T, filename string, expectations map[string]*bidderSpec, aliases map[string]string, privacyConfig config.Privacy, bidIDGenerator BidIDGenerator, hostSChainFlag, floorsFlag bool, hostBidValidation config.Validations, server exchangeServer) Exchange {
-	bidderAdapters := make(map[openrtb_ext.BidderName]AdaptedBidder, len(expectations))
-	bidderInfos := make(config.BidderInfos, len(expectations))
+func newExchangeForTests(t *testing.T, filename string, aliases map[string]string, privacyConfig config.Privacy, bidIDGenerator BidIDGenerator, exSpec *exchangeSpec) Exchange {
+	bidderAdapters := make(map[openrtb_ext.BidderName]AdaptedBidder, len(exSpec.OutgoingRequests))
+	bidderInfos := make(config.BidderInfos, len(exSpec.OutgoingRequests))
 	for _, bidderName := range openrtb_ext.CoreBidderNames() {
-		if spec, ok := expectations[string(bidderName)]; ok {
+		if spec, ok := exSpec.OutgoingRequests[string(bidderName)]; ok {
 			bidderAdapters[bidderName] = &validatingBidder{
 				t:             t,
 				fileName:      filename,
@@ -2386,14 +2386,18 @@ func newExchangeForTests(t *testing.T, filename string, expectations map[string]
 				expectations:  map[string]*bidderRequest{string(bidderName): spec.ExpectedRequest},
 				mockResponses: map[string]bidderResponse{string(bidderName): spec.MockResponse},
 			}
-			bidderInfos[string(bidderName)] = config.BidderInfo{ModifyingVastXmlAllowed: spec.ModifyingVastXmlAllowed}
+			ortbVersion, _ := exSpec.ORTBVersion[string(bidderName)]
+			bidderInfos[string(bidderName)] = config.BidderInfo{
+				ModifyingVastXmlAllowed: spec.ModifyingVastXmlAllowed,
+				OpenRTB:                 &config.OpenRTBInfo{Version: ortbVersion},
+			}
 		} else {
 			bidderInfos[string(bidderName)] = config.BidderInfo{}
 		}
 	}
 
 	for alias, coreBidder := range aliases {
-		if spec, ok := expectations[alias]; ok {
+		if spec, ok := exSpec.OutgoingRequests[alias]; ok {
 			if bidder, ok := bidderAdapters[openrtb_ext.BidderName(coreBidder)]; ok {
 				bidder.(*validatingBidder).expectations[alias] = spec.ExpectedRequest
 				bidder.(*validatingBidder).mockResponses[alias] = spec.MockResponse
@@ -2431,7 +2435,7 @@ func newExchangeForTests(t *testing.T, filename string, expectations map[string]
 	}
 
 	var hostSChainNode *openrtb2.SupplyChainNode
-	if hostSChainFlag {
+	if exSpec.HostSChainFlag {
 		hostSChainNode = &openrtb2.SupplyChainNode{
 			ASI: "pbshostcompany.com", SID: "00001", RID: "BidRequest", HP: openrtb2.Int8Ptr(1),
 		}
@@ -2469,10 +2473,10 @@ func newExchangeForTests(t *testing.T, filename string, expectations map[string]
 		externalURL:              "http://localhost",
 		bidIDGenerator:           bidIDGenerator,
 		hostSChainNode:           hostSChainNode,
-		server:                   config.Server{ExternalUrl: server.ExternalUrl, GvlID: server.GvlID, DataCenter: server.DataCenter},
-		bidValidationEnforcement: hostBidValidation,
+		server:                   config.Server{ExternalUrl: exSpec.Server.ExternalUrl, GvlID: exSpec.Server.GvlID, DataCenter: exSpec.Server.DataCenter},
+		bidValidationEnforcement: exSpec.HostConfigBidValidation,
 		requestSplitter:          requestSplitter,
-		priceFloorEnabled:        floorsFlag,
+		priceFloorEnabled:        exSpec.FloorsEnabled,
 		priceFloorFetcher:        &mockPriceFloorFetcher{},
 	}
 }
@@ -5513,6 +5517,7 @@ type exchangeSpec struct {
 	MultiBid                   *multiBidSpec          `json:"multiBid,omitempty"`
 	Server                     exchangeServer         `json:"server,omitempty"`
 	AccountPrivacy             config.AccountPrivacy  `json:"accountPrivacy,omitempty"`
+	ORTBVersion                map[string]string      `json:"ortbversion"`
 }
 
 type multiBidSpec struct {
diff --git a/exchange/exchangetest/ccpa-featureflag-on.json b/exchange/exchangetest/ccpa-featureflag-on.json
index 0c452098da8..c6d37ed91e4 100644
--- a/exchange/exchangetest/ccpa-featureflag-on.json
+++ b/exchange/exchangetest/ccpa-featureflag-on.json
@@ -1,5 +1,8 @@
 {
     "enforceCcpa": true,
+    "ortbversion": {
+        "appnexus":"2.6"
+    },
     "incomingRequest": {
         "ortbRequest": {
             "id": "some-request-id",
@@ -26,9 +29,7 @@
                 }
             ],
             "regs": {
-                "ext": {
-                    "us_privacy": "1-Y-"
-                }
+                "us_privacy": "1-Y-"
             },
             "user": {
                 "buyeruid": "some-buyer-id"
@@ -59,9 +60,7 @@
                         }
                     ],
                     "regs": {
-                        "ext": {
-                            "us_privacy": "1-Y-"
-                        }
+                        "us_privacy": "1-Y-"
                     },
                     "user": {}
                 }
diff --git a/exchange/exchangetest/eidpermissions-denied.json b/exchange/exchangetest/eidpermissions-denied.json
index eb3e216ecba..d7b5eeea43d 100644
--- a/exchange/exchangetest/eidpermissions-denied.json
+++ b/exchange/exchangetest/eidpermissions-denied.json
@@ -6,18 +6,16 @@
                 "page": "test.somepage.com"
             },
             "user": {
-                "ext": {
-                    "eids": [
-                        {
-                            "source": "source1",
-                            "uids": [
-                                {
-                                    "id": "id1"
-                                }
-                            ]
-                        }
-                    ]
-                }
+                "eids": [
+                    {
+                        "source": "source1",
+                        "uids": [
+                            {
+                                "id": "id1"
+                            }
+                        ]
+                    }
+                ]
             },
             "ext": {
                 "prebid": {
diff --git a/exchange/exchangetest/firstpartydata-multibidder-user-eids.json b/exchange/exchangetest/firstpartydata-multibidder-user-eids.json
new file mode 100644
index 00000000000..f16907dcdb2
--- /dev/null
+++ b/exchange/exchangetest/firstpartydata-multibidder-user-eids.json
@@ -0,0 +1,239 @@
+{
+    "requestType": "openrtb2-web",
+    "ortbversion": {
+        "appnexus":"2.6",
+        "rubicon":"2.6"
+    },
+    "incomingRequest": {
+        "ortbRequest": {
+            "id": "some-request-id",
+            "site": {
+                "page": "test.somepage.com"
+            },
+            "user": {
+                "id": "reqUserID",
+                "keywords": "userKeyword!",
+                "eids": [
+                    {
+                        "source": "reqeid1",
+                        "uids": [
+                            {
+                                "id": "reqeiduid1"
+                            }
+                        ]
+                    },
+                    {
+                        "source": "reqieid2",
+                        "uids": [
+                            {
+                                "id": "reqeiduid2"
+                            }
+                        ]
+                    }
+                ]
+            },
+            "imp": [
+                {
+                    "id": "some-imp-id",
+                    "banner": {
+                        "format": [
+                            {
+                                "w": 600,
+                                "h": 500
+                            },
+                            {
+                                "w": 300,
+                                "h": 600
+                            }
+                        ]
+                    },
+                    "ext": {
+                        "prebid": {
+                            "bidder": {
+                                "appnexus": {
+                                    "placementId": 1
+                                },
+                                "rubicon": {
+                                    "accountId": 1,
+                                    "siteId": 2,
+                                    "zoneId": 3
+                                }
+                            }
+                        }
+                    }
+                }
+            ],
+            "ext": {
+                "prebid": {
+                    "data": {
+                        "eidpermissions": [
+                            {
+                                "source": "reqeid1",
+                                "bidders": [
+                                    "rubicon"
+                                ]
+                            }
+                        ],
+                        "bidders": [
+                            "appnexus",
+                            "rubicon"
+                        ]
+                    },
+                    "bidderconfig": [
+                        {
+                            "bidders": [
+                                "appnexus"
+                            ],
+                            "config": {
+                                "ortb2": {
+                                    "site": {
+                                        "domain": "fpd_appnexus_site_domain",
+                                        "page": "fpd_appnexus_site_page"
+                                    }
+                                }
+                            }
+                        },
+                        {
+                            "bidders": [
+                                "rubicon"
+                            ],
+                            "config": {
+                                "ortb2": {
+                                    "user": {
+                                        "id": "fpdSiteId!4",
+                                        "yob": 2000,
+                                        "keywords": "fpd keywords",
+                                        "eids": [
+                                            {
+                                                "source": "fpdeid1",
+                                                "uids": [
+                                                    {
+                                                        "id": "fpdeiduid1"
+                                                    }
+                                                ]
+                                            },
+                                            {
+                                                "source": "fpdeid2",
+                                                "uids": [
+                                                    {
+                                                        "id": "fpdeiduid1"
+                                                    }
+                                                ]
+                                            }
+                                        ]
+                                    }
+                                }
+                            }
+                        }
+                    ]
+                }
+            }
+        }
+    },
+    "outgoingRequests": {
+        "appnexus": {
+            "expectRequest": {
+                "ortbRequest": {
+                    "id": "some-request-id",
+                    "imp": [
+                        {
+                            "id": "some-imp-id",
+                            "banner": {
+                                "format": [
+                                    {
+                                        "w": 600,
+                                        "h": 500
+                                    },
+                                    {
+                                        "w": 300,
+                                        "h": 600
+                                    }
+                                ]
+                            },
+                            "ext": {
+                                "bidder": {
+                                    "placementId": 1
+                                }
+                            }
+                        }
+                    ],
+                    "site": {
+                        "domain": "fpd_appnexus_site_domain",
+                        "page": "fpd_appnexus_site_page"
+                    },
+                    "user": {
+                        "id": "reqUserID",
+                        "keywords": "userKeyword!",
+                        "eids": [
+                            {
+                                "source": "reqieid2",
+                                "uids": [
+                                    {
+                                        "id": "reqeiduid2"
+                                    }
+                                ]
+                            }
+                        ]
+                    }
+                }
+            }
+        },
+        "rubicon": {
+            "expectRequest": {
+                "ortbRequest": {
+                    "id": "some-request-id",
+                    "imp": [
+                        {
+                            "id": "some-imp-id",
+                            "banner": {
+                                "format": [
+                                    {
+                                        "w": 600,
+                                        "h": 500
+                                    },
+                                    {
+                                        "w": 300,
+                                        "h": 600
+                                    }
+                                ]
+                            },
+                            "ext": {
+                                "bidder": {
+                                    "accountId": 1,
+                                    "siteId": 2,
+                                    "zoneId": 3
+                                }
+                            }
+                        }
+                    ],
+                    "site": {
+                        "page": "test.somepage.com"
+                    },
+                    "user": {
+                        "id": "fpdSiteId!4",
+                        "yob": 2000,
+                        "keywords": "fpd keywords",
+                        "eids": [
+                            {
+                                "source": "fpdeid1",
+                                "uids": [
+                                    {
+                                        "id": "fpdeiduid1"
+                                    }
+                                ]
+                            },
+                            {
+                                "source": "fpdeid2",
+                                "uids": [
+                                    {
+                                        "id": "fpdeiduid1"
+                                    }
+                                ]
+                            }
+                        ]
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/exchange/exchangetest/firstpartydata-user-eids-req-user-nil.json b/exchange/exchangetest/firstpartydata-user-eids-req-user-nil.json
new file mode 100644
index 00000000000..2c3b47dc76e
--- /dev/null
+++ b/exchange/exchangetest/firstpartydata-user-eids-req-user-nil.json
@@ -0,0 +1,203 @@
+{
+    "requestType": "openrtb2-web",
+    "ortbversion": {
+        "appnexus":"2.6",
+        "rubicon":"2.6"
+    },
+    "incomingRequest": {
+        "ortbRequest": {
+            "id": "some-request-id",
+            "site": {
+                "page": "test.somepage.com"
+            },
+            "imp": [
+                {
+                    "id": "some-imp-id",
+                    "banner": {
+                        "format": [
+                            {
+                                "w": 600,
+                                "h": 500
+                            },
+                            {
+                                "w": 300,
+                                "h": 600
+                            }
+                        ]
+                    },
+                    "ext": {
+                        "prebid": {
+                            "bidder": {
+                                "appnexus": {
+                                    "placementId": 1
+                                },
+                                "rubicon": {
+                                    "accountId": 1,
+                                    "siteId": 2,
+                                    "zoneId": 3
+                                }
+                            }
+                        }
+                    }
+                }
+            ],
+            "ext": {
+                "prebid": {
+                    "data": {
+                        "eidpermissions": [
+                            {
+                                "source": "reqeid1",
+                                "bidders": [
+                                    "rubicon"
+                                ]
+                            }
+                        ],
+                        "bidders": [
+                            "appnexus",
+                            "rubicon"
+                        ]
+                    },
+                    "bidderconfig": [
+                        {
+                            "bidders": [
+                                "appnexus"
+                            ],
+                            "config": {
+                                "ortb2": {
+                                    "site": {
+                                        "domain": "fpd_appnexus_site_domain",
+                                        "page": "fpd_appnexus_site_page"
+                                    }
+                                }
+                            }
+                        },
+                        {
+                            "bidders": [
+                                "rubicon"
+                            ],
+                            "config": {
+                                "ortb2": {
+                                    "user": {
+                                        "id": "fpdSiteId!4",
+                                        "yob": 2000,
+                                        "keywords": "fpd keywords",
+                                        "eids": [
+                                            {
+                                                "source": "fpdeid1",
+                                                "uids": [
+                                                    {
+                                                        "id": "fpdeiduid1"
+                                                    }
+                                                ]
+                                            },
+                                            {
+                                                "source": "fpdeid2",
+                                                "uids": [
+                                                    {
+                                                        "id": "fpdeiduid1"
+                                                    }
+                                                ]
+                                            }
+                                        ]
+                                    }
+                                }
+                            }
+                        }
+                    ]
+                }
+            }
+        }
+    },
+    "outgoingRequests": {
+        "appnexus": {
+            "expectRequest": {
+                "ortbRequest": {
+                    "id": "some-request-id",
+                    "imp": [
+                        {
+                            "id": "some-imp-id",
+                            "banner": {
+                                "format": [
+                                    {
+                                        "w": 600,
+                                        "h": 500
+                                    },
+                                    {
+                                        "w": 300,
+                                        "h": 600
+                                    }
+                                ]
+                            },
+                            "ext": {
+                                "bidder": {
+                                    "placementId": 1
+                                }
+                            }
+                        }
+                    ],
+                    "site": {
+                        "domain": "fpd_appnexus_site_domain",
+                        "page": "fpd_appnexus_site_page"
+                    }
+                }
+            }
+        },
+        "rubicon": {
+            "expectRequest": {
+                "ortbRequest": {
+                    "id": "some-request-id",
+                    "imp": [
+                        {
+                            "id": "some-imp-id",
+                            "banner": {
+                                "format": [
+                                    {
+                                        "w": 600,
+                                        "h": 500
+                                    },
+                                    {
+                                        "w": 300,
+                                        "h": 600
+                                    }
+                                ]
+                            },
+                            "ext": {
+                                "bidder": {
+                                    "accountId": 1,
+                                    "siteId": 2,
+                                    "zoneId": 3
+                                }
+                            }
+                        }
+                    ],
+                    "site": {
+                        "page": "test.somepage.com"
+                    },
+                    "user": {
+                        "id": "fpdSiteId!4",
+                        "yob": 2000,
+                        "keywords": "fpd keywords",
+                        "eids": [
+                            {
+                                "source": "fpdeid1",
+                                "uids": [
+                                    {
+                                        "id": "fpdeiduid1"
+                                    }
+                                ]
+                            },
+                            {
+                                "source": "fpdeid2",
+                                "uids": [
+                                    {
+                                        "id": "fpdeiduid1"
+                                    }
+                                ]
+                            }
+                        ]
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/exchange/exchangetest/firstpartydata-user-nileids-req-user-nil.json b/exchange/exchangetest/firstpartydata-user-nileids-req-user-nil.json
new file mode 100644
index 00000000000..3ea8382176c
--- /dev/null
+++ b/exchange/exchangetest/firstpartydata-user-nileids-req-user-nil.json
@@ -0,0 +1,163 @@
+{
+    "requestType": "openrtb2-web",
+    "incomingRequest": {
+        "ortbRequest": {
+            "id": "some-request-id",
+            "site": {
+                "page": "test.somepage.com"
+            },
+            "imp": [
+                {
+                    "id": "some-imp-id",
+                    "banner": {
+                        "format": [
+                            {
+                                "w": 600,
+                                "h": 500
+                            },
+                            {
+                                "w": 300,
+                                "h": 600
+                            }
+                        ]
+                    },
+                    "ext": {
+                        "prebid": {
+                            "bidder": {
+                                "appnexus": {
+                                    "placementId": 1
+                                },
+                                "rubicon": {
+                                    "accountId": 1,
+                                    "siteId": 2,
+                                    "zoneId": 3
+                                }
+                            }
+                        }
+                    }
+                }
+            ],
+            "ext": {
+                "prebid": {
+                    "data": {
+                        "eidpermissions": [
+                            {
+                                "source": "reqeid1",
+                                "bidders": [
+                                    "rubicon"
+                                ]
+                            }
+                        ],
+                        "bidders": [
+                            "appnexus",
+                            "rubicon"
+                        ]
+                    },
+                    "bidderconfig": [
+                        {
+                            "bidders": [
+                                "appnexus"
+                            ],
+                            "config": {
+                                "ortb2": {
+                                    "site": {
+                                        "domain": "fpd_appnexus_site_domain",
+                                        "page": "fpd_appnexus_site_page"
+                                    }
+                                }
+                            }
+                        },
+                        {
+                            "bidders": [
+                                "rubicon"
+                            ],
+                            "config": {
+                                "ortb2": {
+                                    "user": {
+                                        "id": "fpdSiteId!4",
+                                        "yob": 2000,
+                                        "keywords": "fpd keywords"
+                                    }
+                                }
+                            }
+                        }
+                    ]
+                }
+            }
+        }
+    },
+    "outgoingRequests": {
+        "appnexus": {
+            "expectRequest": {
+                "ortbRequest": {
+                    "id": "some-request-id",
+                    "imp": [
+                        {
+                            "id": "some-imp-id",
+                            "banner": {
+                                "format": [
+                                    {
+                                        "w": 600,
+                                        "h": 500
+                                    },
+                                    {
+                                        "w": 300,
+                                        "h": 600
+                                    }
+                                ]
+                            },
+                            "ext": {
+                                "bidder": {
+                                    "placementId": 1
+                                }
+                            }
+                        }
+                    ],
+                    "site": {
+                        "domain": "fpd_appnexus_site_domain",
+                        "page": "fpd_appnexus_site_page"
+                    }
+                }
+            }
+        },
+        "rubicon": {
+            "expectRequest": {
+                "ortbRequest": {
+                    "id": "some-request-id",
+                    "imp": [
+                        {
+                            "id": "some-imp-id",
+                            "banner": {
+                                "format": [
+                                    {
+                                        "w": 600,
+                                        "h": 500
+                                    },
+                                    {
+                                        "w": 300,
+                                        "h": 600
+                                    }
+                                ]
+                            },
+                            "ext": {
+                                "bidder": {
+                                    "accountId": 1,
+                                    "siteId": 2,
+                                    "zoneId": 3
+                                }
+                            }
+                        }
+                    ],
+                    "site": {
+                        "page": "test.somepage.com"
+                    },
+                    "user": {
+                        "id": "fpdSiteId!4",
+                        "yob": 2000,
+                        "keywords": "fpd keywords"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/exchange/exchangetest/multi-bids-different-ortb-versions.json b/exchange/exchangetest/multi-bids-different-ortb-versions.json
new file mode 100644
index 00000000000..37e7fc582c7
--- /dev/null
+++ b/exchange/exchangetest/multi-bids-different-ortb-versions.json
@@ -0,0 +1,276 @@
+{
+    "requestType": "openrtb2-web",
+    "ortbversion": {
+        "appnexus":"2.6",
+        "rubicon":"2.5"
+    },
+    "incomingRequest": {
+        "ortbRequest": {
+            "id": "some-request-id",
+            "site": {
+                "page": "test.somepage.com"
+            },
+            "user": {
+                "id": "my-user-id",
+                "buyeruid": "my-buyer-uid",
+                "geo": {
+                    "lat": 123.456,
+                    "lon": 678.90,
+                    "zip": "90210"
+                },
+                "consent": "AAAA",
+                "eids": [
+                    {
+                        "source": "source",
+                        "uids": [
+                            {
+                                "id": "1",
+                                "atype": 1,
+                                "ext": {}
+                            },
+                            {
+                                "id": "1",
+                                "atype": 1,
+                                "ext": {}
+                            }
+                        ],
+                        "ext": {}
+                    }
+                ],
+                "ext": {}
+            },
+            "imp": [
+                {
+                    "rwdd": 1,
+                    "id": "some-imp-id",
+                    "banner": {
+                        "format": [
+                            {
+                                "w": 600,
+                                "h": 500
+                            },
+                            {
+                                "w": 300,
+                                "h": 600
+                            }
+                        ]
+                    },
+                    "ext": {
+                        "prebid": {
+                            "bidder": {
+                                "appnexus": {
+                                    "placementId": 1
+                                },
+                                "rubicon": {
+                                    "accountId": 1,
+                                    "siteId": 2,
+                                    "zoneId": 3
+                                }
+                            }
+                        }
+                    }
+                }
+            ],
+            "source": {
+                "fd": 1,
+                "tid": "abc123",
+                "pchain": "tag_placement",
+                "schain": {
+                    "complete": 1,
+                    "nodes": [
+                        {
+                            "asi": "asi",
+                            "sid": "sid",
+                            "rid": "rid",
+                            "ext": {}
+                        }
+                    ],
+                    "ver": "ver",
+                    "ext": {}
+                },
+                "ext": {}
+            },
+            "regs": {
+                "coppa": 1,
+                "gdpr": 1,
+                "us_privacy": "1YYY",
+                "gpp": "DBACNYA~CPXxRfAPXxRfAAfKABENB-CgAAAAAAAAAAYgAAAAAAAA~1NYN",
+                "gppsid": [
+                    6
+                ]
+            }
+        }
+    },
+    "outgoingRequests": {
+        "appnexus": {
+            "expectRequest": {
+                "ortbRequest": {
+                    "id": "some-request-id",
+                    "site": {
+                        "page": "test.somepage.com"
+                    },
+                    "user": {
+                        "geo": {},
+                        "consent": "AAAA",
+                        "eids": [
+                            {
+                                "source": "source",
+                                "uids": [
+                                    {
+                                        "id": "1",
+                                        "atype": 1,
+                                        "ext": {}
+                                    },
+                                    {
+                                        "id": "1",
+                                        "atype": 1,
+                                        "ext": {}
+                                    }
+                                ],
+                                "ext": {}
+                            }
+                        ],
+                        "ext": {}
+                    },
+                    "imp": [
+                        {
+                            "rwdd": 1,
+                            "id": "some-imp-id",
+                            "banner": {
+                                "format": [
+                                    {
+                                        "w": 600,
+                                        "h": 500
+                                    },
+                                    {
+                                        "w": 300,
+                                        "h": 600
+                                    }
+                                ]
+                            },
+                            "ext": {
+                                "bidder": {
+                                    "placementId": 1
+                                }
+                            }
+                        }
+                    ],
+                    "source": {
+                        "fd": 1,
+                        "tid": "abc123",
+                        "pchain": "tag_placement",
+                        "schain": {
+                            "complete": 1,
+                            "nodes": [
+                                {
+                                    "asi": "asi",
+                                    "sid": "sid",
+                                    "rid": "rid",
+                                    "ext": {}
+                                }
+                            ],
+                            "ver": "ver",
+                            "ext": {}
+                        },
+                        "ext": {}
+                    },
+                    "regs": {
+                        "coppa": 1,
+                        "gdpr": 1,
+                        "us_privacy": "1YYY",
+                        "gpp": "DBACNYA~CPXxRfAPXxRfAAfKABENB-CgAAAAAAAAAAYgAAAAAAAA~1NYN"
+                    }
+                }
+            }
+        },
+        "rubicon": {
+            "expectRequest": {
+                "ortbRequest": {
+                    "id": "some-request-id",
+                    "site": {
+                        "page": "test.somepage.com"
+                    },
+                    "user": {
+                        "geo": {},
+                        "ext": {
+                            "consent": "AAAA",
+                            "eids": [
+                                {
+                                    "source": "source",
+                                    "uids": [
+                                        {
+                                            "id": "1",
+                                            "atype": 1,
+                                            "ext": {}
+                                        },
+                                        {
+                                            "id": "1",
+                                            "atype": 1,
+                                            "ext": {}
+                                        }
+                                    ],
+                                    "ext": {}
+                                }
+                            ]
+                        }
+                    },
+                    "imp": [
+                        {
+                            "id": "some-imp-id",
+                            "banner": {
+                                "format": [
+                                    {
+                                        "w": 600,
+                                        "h": 500
+                                    },
+                                    {
+                                        "w": 300,
+                                        "h": 600
+                                    }
+                                ]
+                            },
+                            "ext": {
+                                "bidder": {
+                                    "accountId": 1,
+                                    "siteId": 2,
+                                    "zoneId": 3
+                                },
+                                "prebid": {
+                                    "is_rewarded_inventory":1
+                                }
+                            }
+                        }
+                    ],
+                    "source": {
+                        "fd": 1,
+                        "tid": "abc123",
+                        "pchain": "tag_placement",
+                        "ext": {
+                            "schain": {
+                                "complete": 1,
+                                "nodes": [
+                                    {
+                                        "asi": "asi",
+                                        "sid": "sid",
+                                        "rid": "rid",
+                                        "ext": {}
+                                    }
+                                ],
+                                "ver": "ver",
+                                "ext": {}
+                            }
+                        }
+                    },
+                    "regs": {
+                        "coppa": 1,
+                        "gpp":"DBACNYA~CPXxRfAPXxRfAAfKABENB-CgAAAAAAAAAAYgAAAAAAAA~1NYN",
+                        "ext": {
+                            "gdpr": 1,
+                            "us_privacy": "1YYY"
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/exchange/exchangetest/schain-host-and-request.json b/exchange/exchangetest/schain-host-and-request.json
index 5bfcd1c3527..0552bb09b30 100644
--- a/exchange/exchangetest/schain-host-and-request.json
+++ b/exchange/exchangetest/schain-host-and-request.json
@@ -1,5 +1,8 @@
 {
     "host_schain_flag": true,
+    "ortbversion": {
+        "appnexus":"2.6"
+    },
     "incomingRequest": {
         "ortbRequest": {
             "id": "some-request-id",
@@ -84,25 +87,23 @@
                         }
                     },
                     "source": {
-                        "ext": {
-                            "schain": {
-                                "complete": 1,
-                                "nodes": [
-                                    {
-                                        "asi": "whatever.com",
-                                        "sid": "1234",
-                                        "rid": "123-456-7890",
-                                        "hp": 1
-                                    },
-                                    {
-                                        "asi": "pbshostcompany.com",
-                                        "sid": "00001",
-                                        "rid": "BidRequest",
-                                        "hp": 1
-                                    }
-                                ],
-                                "ver": "2.0"
-                            }
+                        "schain": {
+                            "complete": 1,
+                            "nodes": [
+                                {
+                                    "asi": "whatever.com",
+                                    "sid": "1234",
+                                    "rid": "123-456-7890",
+                                    "hp": 1
+                                },
+                                {
+                                    "asi": "pbshostcompany.com",
+                                    "sid": "00001",
+                                    "rid": "BidRequest",
+                                    "hp": 1
+                                }
+                            ],
+                            "ver": "2.0"
                         }
                     }
                 },
diff --git a/exchange/exchangetest/schain-host-only.json b/exchange/exchangetest/schain-host-only.json
index 0cc077e2fdb..89fb70c3676 100644
--- a/exchange/exchangetest/schain-host-only.json
+++ b/exchange/exchangetest/schain-host-only.json
@@ -1,5 +1,8 @@
 {
     "host_schain_flag": true,
+    "ortbversion": {
+        "appnexus":"2.6"
+    },
     "incomingRequest": {
         "ortbRequest": {
             "id": "some-request-id",
@@ -64,19 +67,17 @@
                         }
                     },
                     "source": {
-                        "ext": {
-                            "schain": {
-                                "complete": 0,
-                                "nodes": [
-                                    {
-                                        "asi": "pbshostcompany.com",
-                                        "sid": "00001",
-                                        "rid": "BidRequest",
-                                        "hp": 1
-                                    }
-                                ],
-                                "ver": "1.0"
-                            }
+                        "schain": {
+                            "complete": 0,
+                            "nodes": [
+                                {
+                                    "asi": "pbshostcompany.com",
+                                    "sid": "00001",
+                                    "rid": "BidRequest",
+                                    "hp": 1
+                                }
+                            ],
+                            "ver": "1.0"
                         }
                     }
                 },
diff --git a/exchange/gdpr.go b/exchange/gdpr.go
index 2f94eefdaef..866f33baed2 100644
--- a/exchange/gdpr.go
+++ b/exchange/gdpr.go
@@ -3,9 +3,9 @@ package exchange
 import (
 	gpplib "github.com/prebid/go-gpp"
 	gppConstants "github.com/prebid/go-gpp/constants"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	gppPolicy "github.com/prebid/prebid-server/v2/privacy/gpp"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	gppPolicy "github.com/prebid/prebid-server/v3/privacy/gpp"
 )
 
 // getGDPR will pull the gdpr flag from an openrtb request
@@ -16,11 +16,11 @@ func getGDPR(req *openrtb_ext.RequestWrapper) (gdpr.Signal, error) {
 		}
 		return gdpr.SignalNo, nil
 	}
-	re, err := req.GetRegExt()
-	if re == nil || re.GetGDPR() == nil || err != nil {
-		return gdpr.SignalAmbiguous, err
+	if req.Regs != nil && req.Regs.GDPR != nil {
+		return gdpr.IntSignalParse(int(*req.Regs.GDPR))
 	}
-	return gdpr.Signal(*re.GetGDPR()), nil
+	return gdpr.SignalAmbiguous, nil
+
 }
 
 // getConsent will pull the consent string from an openrtb request
@@ -29,11 +29,10 @@ func getConsent(req *openrtb_ext.RequestWrapper, gpp gpplib.GppContainer) (conse
 		consent = gpp.Sections[i].GetValue()
 		return
 	}
-	ue, err := req.GetUserExt()
-	if ue == nil || ue.GetConsent() == nil || err != nil {
-		return
+	if req.User != nil {
+		return req.User.Consent, nil
 	}
-	return *ue.GetConsent(), nil
+	return
 }
 
 // enforceGDPR determines if GDPR should be enforced based on the request signal and whether the channel is enabled
diff --git a/exchange/gdpr_test.go b/exchange/gdpr_test.go
index c73112be6f3..b2d175c2ad0 100644
--- a/exchange/gdpr_test.go
+++ b/exchange/gdpr_test.go
@@ -1,14 +1,14 @@
 package exchange
 
 import (
-	"encoding/json"
 	"testing"
 
 	gpplib "github.com/prebid/go-gpp"
 	gppConstants "github.com/prebid/go-gpp/constants"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -21,17 +21,17 @@ func TestGetGDPR(t *testing.T) {
 	}{
 		{
 			description: "Regs Ext GDPR = 0",
-			giveRegs:    &openrtb2.Regs{Ext: json.RawMessage(`{"gdpr": 0}`)},
+			giveRegs:    &openrtb2.Regs{GDPR: ptrutil.ToPtr[int8](0)},
 			wantGDPR:    gdpr.SignalNo,
 		},
 		{
 			description: "Regs Ext GDPR = 1",
-			giveRegs:    &openrtb2.Regs{Ext: json.RawMessage(`{"gdpr": 1}`)},
+			giveRegs:    &openrtb2.Regs{GDPR: ptrutil.ToPtr[int8](1)},
 			wantGDPR:    gdpr.SignalYes,
 		},
 		{
 			description: "Regs Ext GDPR = null",
-			giveRegs:    &openrtb2.Regs{Ext: json.RawMessage(`{"gdpr": null}`)},
+			giveRegs:    &openrtb2.Regs{GDPR: nil},
 			wantGDPR:    gdpr.SignalAmbiguous,
 		},
 		{
@@ -39,30 +39,19 @@ func TestGetGDPR(t *testing.T) {
 			giveRegs:    nil,
 			wantGDPR:    gdpr.SignalAmbiguous,
 		},
-		{
-			description: "Regs Ext is nil",
-			giveRegs:    &openrtb2.Regs{Ext: nil},
-			wantGDPR:    gdpr.SignalAmbiguous,
-		},
-		{
-			description: "JSON unmarshal error",
-			giveRegs:    &openrtb2.Regs{Ext: json.RawMessage(`{"`)},
-			wantGDPR:    gdpr.SignalAmbiguous,
-			wantError:   true,
-		},
 		{
 			description: "Regs Ext GDPR = null, GPPSID has tcf2",
-			giveRegs:    &openrtb2.Regs{Ext: json.RawMessage(`{"gdpr": null}`), GPPSID: []int8{2}},
+			giveRegs:    &openrtb2.Regs{GDPR: nil, GPPSID: []int8{2}},
 			wantGDPR:    gdpr.SignalYes,
 		},
 		{
 			description: "Regs Ext GDPR = 1, GPPSID has uspv1",
-			giveRegs:    &openrtb2.Regs{Ext: json.RawMessage(`{"gdpr": 1}`), GPPSID: []int8{6}},
+			giveRegs:    &openrtb2.Regs{GDPR: ptrutil.ToPtr[int8](1), GPPSID: []int8{6}},
 			wantGDPR:    gdpr.SignalNo,
 		},
 		{
 			description: "Regs Ext GDPR = 0, GPPSID has tcf2",
-			giveRegs:    &openrtb2.Regs{Ext: json.RawMessage(`{"gdpr": 0}`), GPPSID: []int8{2}},
+			giveRegs:    &openrtb2.Regs{GDPR: ptrutil.ToPtr[int8](0), GPPSID: []int8{2}},
 			wantGDPR:    gdpr.SignalYes,
 		},
 		{
@@ -105,18 +94,13 @@ func TestGetConsent(t *testing.T) {
 		wantError   bool
 	}{
 		{
-			description: "User Ext Consent is not empty",
-			giveUser:    &openrtb2.User{Ext: json.RawMessage(`{"consent": "BOS2bx5OS2bx5ABABBAAABoAAAAAFA"}`)},
+			description: "User Consent is not empty",
+			giveUser:    &openrtb2.User{Consent: "BOS2bx5OS2bx5ABABBAAABoAAAAAFA"},
 			wantConsent: "BOS2bx5OS2bx5ABABBAAABoAAAAAFA",
 		},
 		{
-			description: "User Ext Consent is empty",
-			giveUser:    &openrtb2.User{Ext: json.RawMessage(`{"consent": ""}`)},
-			wantConsent: "",
-		},
-		{
-			description: "User Ext is nil",
-			giveUser:    &openrtb2.User{Ext: nil},
+			description: "User Consent is empty",
+			giveUser:    &openrtb2.User{Consent: ""},
 			wantConsent: "",
 		},
 		{
@@ -125,26 +109,20 @@ func TestGetConsent(t *testing.T) {
 			wantConsent: "",
 		},
 		{
-			description: "JSON unmarshal error",
-			giveUser:    &openrtb2.User{Ext: json.RawMessage(`{`)},
-			wantConsent: "",
-			wantError:   true,
-		},
-		{
-			description: "User Ext is nil, GPP has no GDPR",
-			giveUser:    &openrtb2.User{Ext: nil},
+			description: "User is nil, GPP has no GDPR",
+			giveUser:    nil,
 			giveGPP:     gpplib.GppContainer{Version: 1, SectionTypes: []gppConstants.SectionID{6}, Sections: []gpplib.Section{&upsv1Section}},
 			wantConsent: "",
 		},
 		{
-			description: "User Ext is nil, GPP has GDPR",
-			giveUser:    &openrtb2.User{Ext: nil},
+			description: "User is nil, GPP has GDPR",
+			giveUser:    nil,
 			giveGPP:     gpplib.GppContainer{Version: 1, SectionTypes: []gppConstants.SectionID{2}, Sections: []gpplib.Section{&tcf1Section}},
 			wantConsent: "BOS2bx5OS2bx5ABABBAAABoAAAAAFA",
 		},
 		{
-			description: "User Ext has GDPR, GPP has GDPR",
-			giveUser:    &openrtb2.User{Ext: json.RawMessage(`{"consent": "BSOMECONSENT"}`)},
+			description: "User has GDPR, GPP has GDPR",
+			giveUser:    &openrtb2.User{Consent: "BSOMECONSENT"},
 			giveGPP:     gpplib.GppContainer{Version: 1, SectionTypes: []gppConstants.SectionID{2}, Sections: []gpplib.Section{&tcf1Section}},
 			wantConsent: "BOS2bx5OS2bx5ABABBAAABoAAAAAFA",
 		},
diff --git a/exchange/non_bid_reason.go b/exchange/non_bid_reason.go
index edfd3bc1e3d..05d4ea3ee66 100644
--- a/exchange/non_bid_reason.go
+++ b/exchange/non_bid_reason.go
@@ -5,7 +5,7 @@ import (
 	"net"
 	"syscall"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 )
 
 // SeatNonBid list the reasons why bid was not resulted in positive bid
diff --git a/exchange/non_bid_reason_test.go b/exchange/non_bid_reason_test.go
index ab5c9b4f957..fb9c5e434fc 100644
--- a/exchange/non_bid_reason_test.go
+++ b/exchange/non_bid_reason_test.go
@@ -6,7 +6,7 @@ import (
 	"syscall"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/exchange/price_granularity.go b/exchange/price_granularity.go
index 9c16a0d3aef..ba62c1aa4ab 100644
--- a/exchange/price_granularity.go
+++ b/exchange/price_granularity.go
@@ -5,7 +5,7 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // GetPriceBucket is the externally facing function for computing CPM buckets
diff --git a/exchange/price_granularity_test.go b/exchange/price_granularity_test.go
index 82152acb9d2..bb0e5e7d73b 100644
--- a/exchange/price_granularity_test.go
+++ b/exchange/price_granularity_test.go
@@ -6,8 +6,8 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/exchange/seat_non_bids.go b/exchange/seat_non_bids.go
index 760431ef44f..fd6fd1da3ff 100644
--- a/exchange/seat_non_bids.go
+++ b/exchange/seat_non_bids.go
@@ -1,8 +1,8 @@
 package exchange
 
 import (
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 type SeatNonBidBuilder map[string][]openrtb_ext.NonBid
diff --git a/exchange/seat_non_bids_test.go b/exchange/seat_non_bids_test.go
index b754f885965..4a8f9e8f784 100644
--- a/exchange/seat_non_bids_test.go
+++ b/exchange/seat_non_bids_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/exchange/targeting.go b/exchange/targeting.go
index d5ce7152a77..4f48d70c164 100644
--- a/exchange/targeting.go
+++ b/exchange/targeting.go
@@ -5,7 +5,7 @@ import (
 	"strconv"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const MaxKeyLength = 20
diff --git a/exchange/targeting_test.go b/exchange/targeting_test.go
index 13a7572a182..8bfe67475d2 100644
--- a/exchange/targeting_test.go
+++ b/exchange/targeting_test.go
@@ -8,16 +8,16 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	metricsConfig "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	metricsConfig "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/stretchr/testify/assert"
diff --git a/exchange/tmax_adjustments.go b/exchange/tmax_adjustments.go
index 55e2b18ad01..0d0fa31fdc6 100644
--- a/exchange/tmax_adjustments.go
+++ b/exchange/tmax_adjustments.go
@@ -4,7 +4,7 @@ import (
 	"context"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 )
 
 type TmaxAdjustmentsPreprocessed struct {
diff --git a/exchange/tmax_adjustments_test.go b/exchange/tmax_adjustments_test.go
index ce6f1736adf..79252339877 100644
--- a/exchange/tmax_adjustments_test.go
+++ b/exchange/tmax_adjustments_test.go
@@ -4,7 +4,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/exchange/utils.go b/exchange/utils.go
index f56a88151d9..8c8e63a0147 100644
--- a/exchange/utils.go
+++ b/exchange/utils.go
@@ -1,7 +1,6 @@
 package exchange
 
 import (
-	"bytes"
 	"context"
 	"encoding/json"
 	"errors"
@@ -14,20 +13,20 @@ import (
 	gppConstants "github.com/prebid/go-gpp/constants"
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/firstpartydata"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/privacy/ccpa"
-	"github.com/prebid/prebid-server/v2/privacy/lmt"
-	"github.com/prebid/prebid-server/v2/schain"
-	"github.com/prebid/prebid-server/v2/stored_responses"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/firstpartydata"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/privacy/ccpa"
+	"github.com/prebid/prebid-server/v3/privacy/lmt"
+	"github.com/prebid/prebid-server/v3/schain"
+	"github.com/prebid/prebid-server/v3/stored_responses"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 var errInvalidRequestExt = errors.New("request.ext is invalid")
@@ -63,8 +62,11 @@ func (rs *requestSplitter) cleanOpenRTBRequests(ctx context.Context,
 	gdprSignal gdpr.Signal,
 	gdprEnforced bool,
 	bidAdjustmentFactors map[string]float64,
-) (allowedBidderRequests []BidderRequest, privacyLabels metrics.PrivacyLabels, errs []error) {
+) (bidderRequests []BidderRequest, privacyLabels metrics.PrivacyLabels, errs []error) {
 	req := auctionReq.BidRequestWrapper
+	if err := PreloadExts(req); err != nil {
+		return
+	}
 
 	requestAliases, requestAliasesGVLIDs, errs := getRequestAliases(req)
 	if len(errs) > 0 {
@@ -72,7 +74,6 @@ func (rs *requestSplitter) cleanOpenRTBRequests(ctx context.Context,
 	}
 
 	bidderImpWithBidResp := stored_responses.InitStoredBidResponses(req.BidRequest, auctionReq.StoredBidResponses)
-
 	hasStoredAuctionResponses := len(auctionReq.StoredAuctionResponses) > 0
 
 	impsByBidder, err := splitImps(req.BidRequest.Imp, rs.requestValidator, requestAliases, hasStoredAuctionResponses, auctionReq.StoredBidResponses)
@@ -81,16 +82,28 @@ func (rs *requestSplitter) cleanOpenRTBRequests(ctx context.Context,
 		return
 	}
 
-	var allBidderRequests []BidderRequest
-	var allBidderRequestErrs []error
-	allBidderRequests, allBidderRequestErrs = getAuctionBidderRequests(auctionReq, requestExt, rs.bidderToSyncerKey, impsByBidder, requestAliases, rs.hostSChainNode)
-	if allBidderRequestErrs != nil {
-		errs = append(errs, allBidderRequestErrs...)
+	explicitBuyerUIDs, err := extractBuyerUIDs(req.BidRequest.User)
+	if err != nil {
+		errs = []error{err}
+		return
+	}
+	lowerCaseExplicitBuyerUIDs := make(map[string]string)
+	for bidder, uid := range explicitBuyerUIDs {
+		lowerKey := strings.ToLower(bidder)
+		lowerCaseExplicitBuyerUIDs[lowerKey] = uid
+	}
+
+	bidderParamsInReqExt, err := ExtractReqExtBidderParamsMap(req.BidRequest)
+	if err != nil {
+		errs = []error{err}
+		return
 	}
 
-	bidderNameToBidderReq := buildBidResponseRequest(req.BidRequest, bidderImpWithBidResp, requestAliases, auctionReq.BidderImpReplaceImpID)
-	//this function should be executed after getAuctionBidderRequests
-	allBidderRequests = mergeBidderRequests(allBidderRequests, bidderNameToBidderReq)
+	sChainWriter, err := schain.NewSChainWriter(requestExt, rs.hostSChainNode)
+	if err != nil {
+		errs = []error{err}
+		return
+	}
 
 	var gpp gpplib.GppContainer
 	if req.BidRequest.Regs != nil && len(req.BidRequest.Regs.GPP) > 0 {
@@ -101,11 +114,6 @@ func (rs *requestSplitter) cleanOpenRTBRequests(ctx context.Context,
 		}
 	}
 
-	if auctionReq.Account.PriceFloors.IsAdjustForBidAdjustmentEnabled() {
-		//Apply BidAdjustmentFactor to imp.BidFloor
-		applyBidAdjustmentToFloor(allBidderRequests, bidAdjustmentFactors)
-	}
-
 	consent, err := getConsent(req, gpp)
 	if err != nil {
 		errs = append(errs, err)
@@ -146,37 +154,198 @@ func (rs *requestSplitter) cleanOpenRTBRequests(ctx context.Context,
 		gdprPerms = rs.gdprPermsBuilder(auctionReq.TCF2Config, gdprRequestInfo)
 	}
 
-	allowedBidderRequests = make([]BidderRequest, 0, len(allBidderRequests))
+	bidderRequests = make([]BidderRequest, 0, len(impsByBidder))
+
+	for bidder, imps := range impsByBidder {
+		fpdUserEIDsPresent := fpdUserEIDExists(req, auctionReq.FirstPartyData, bidder)
+		reqWrapperCopy := req.CloneAndClearImpWrappers()
+		bidRequestCopy := *req.BidRequest
+		reqWrapperCopy.BidRequest = &bidRequestCopy
+		reqWrapperCopy.Imp = imps
+
+		coreBidder, isRequestAlias := resolveBidder(bidder, requestAliases)
+
+		// apply bidder-specific schains
+		sChainWriter.Write(reqWrapperCopy, bidder)
+
+		// eid scrubbing
+		if err := removeUnpermissionedEids(reqWrapperCopy, bidder); err != nil {
+			errs = append(errs, fmt.Errorf("unable to enforce request.ext.prebid.data.eidpermissions because %v", err))
+			continue
+		}
+
+		// generate bidder-specific request ext
+		err = buildRequestExtForBidder(bidder, reqWrapperCopy, bidderParamsInReqExt, auctionReq.Account.AlternateBidderCodes)
+		if err != nil {
+			errs = append(errs, err)
+			continue
+		}
+
+		// apply bid adjustments
+		if auctionReq.Account.PriceFloors.IsAdjustForBidAdjustmentEnabled() {
+			applyBidAdjustmentToFloor(reqWrapperCopy, bidder, bidAdjustmentFactors)
+		}
+
+		// prepare user
+		syncerKey := rs.bidderToSyncerKey[string(coreBidder)]
+		hadSync := prepareUser(reqWrapperCopy, bidder, syncerKey, lowerCaseExplicitBuyerUIDs, auctionReq.UserSyncs)
 
-	for _, bidderRequest := range allBidderRequests {
-		auctionPermissions := gdprPerms.AuctionActivitiesAllowed(ctx, bidderRequest.BidderCoreName, bidderRequest.BidderName)
+		auctionPermissions := gdprPerms.AuctionActivitiesAllowed(ctx, coreBidder, openrtb_ext.BidderName(bidder))
 
 		// privacy blocking
-		if rs.isBidderBlockedByPrivacy(req, auctionReq.Activities, auctionPermissions, bidderRequest.BidderCoreName, bidderRequest.BidderName) {
+		if rs.isBidderBlockedByPrivacy(reqWrapperCopy, auctionReq.Activities, auctionPermissions, coreBidder, openrtb_ext.BidderName(bidder)) {
 			continue
 		}
 
 		// fpd
-		applyFPD(auctionReq.FirstPartyData, bidderRequest)
+		applyFPD(auctionReq.FirstPartyData, coreBidder, openrtb_ext.BidderName(bidder), isRequestAlias, reqWrapperCopy, fpdUserEIDsPresent)
 
 		// privacy scrubbing
-		if err := rs.applyPrivacy(&bidderRequest, auctionReq, auctionPermissions, ccpaEnforcer, lmt, coppa); err != nil {
+		if err := rs.applyPrivacy(reqWrapperCopy, coreBidder, bidder, auctionReq, auctionPermissions, ccpaEnforcer, lmt, coppa); err != nil {
 			errs = append(errs, err)
 			continue
 		}
 
 		// GPP downgrade: always downgrade unless we can confirm GPP is supported
-		if shouldSetLegacyPrivacy(rs.bidderInfo, string(bidderRequest.BidderCoreName)) {
-			setLegacyGDPRFromGPP(bidderRequest.BidRequest, gpp)
-			setLegacyUSPFromGPP(bidderRequest.BidRequest, gpp)
+		if shouldSetLegacyPrivacy(rs.bidderInfo, string(coreBidder)) {
+			setLegacyGDPRFromGPP(reqWrapperCopy, gpp)
+			setLegacyUSPFromGPP(reqWrapperCopy, gpp)
+		}
+
+		// remove imps with stored responses so they aren't sent to the bidder
+		if impResponses, ok := bidderImpWithBidResp[openrtb_ext.BidderName(bidder)]; ok {
+			removeImpsWithStoredResponses(reqWrapperCopy, impResponses)
+		}
+
+		// down convert
+		info, ok := rs.bidderInfo[bidder]
+		if !ok || info.OpenRTB == nil || info.OpenRTB.Version != "2.6" {
+			reqWrapperCopy.Regs = ortb.CloneRegs(reqWrapperCopy.Regs)
+			if err := openrtb_ext.ConvertDownTo25(reqWrapperCopy); err != nil {
+				errs = append(errs, err)
+				continue
+			}
+		}
+
+		// sync wrapper
+		if err := reqWrapperCopy.RebuildRequest(); err != nil {
+			errs = append(errs, err)
+			continue
+		}
+
+		// choose labels
+		bidderLabels := metrics.AdapterLabels{
+			Adapter: coreBidder,
+		}
+		if !hadSync && req.BidRequest.App == nil {
+			bidderLabels.CookieFlag = metrics.CookieFlagNo
+		} else {
+			bidderLabels.CookieFlag = metrics.CookieFlagYes
+		}
+		if len(reqWrapperCopy.Imp) > 0 {
+			bidderLabels.Source = auctionReq.LegacyLabels.Source
+			bidderLabels.RType = auctionReq.LegacyLabels.RType
+			bidderLabels.PubID = auctionReq.LegacyLabels.PubID
+			bidderLabels.CookieFlag = auctionReq.LegacyLabels.CookieFlag
+			bidderLabels.AdapterBids = metrics.AdapterBidPresent
 		}
 
-		allowedBidderRequests = append(allowedBidderRequests, bidderRequest)
+		bidderRequest := BidderRequest{
+			BidderName:            openrtb_ext.BidderName(bidder),
+			BidderCoreName:        coreBidder,
+			BidRequest:            reqWrapperCopy.BidRequest,
+			IsRequestAlias:        isRequestAlias,
+			BidderStoredResponses: bidderImpWithBidResp[openrtb_ext.BidderName(bidder)],
+			ImpReplaceImpId:       auctionReq.BidderImpReplaceImpID[bidder],
+			BidderLabels:          bidderLabels,
+		}
+		bidderRequests = append(bidderRequests, bidderRequest)
 	}
 
 	return
 }
 
+// fpdUserEIDExists determines if req fpd config had User.EIDs
+func fpdUserEIDExists(req *openrtb_ext.RequestWrapper, fpd map[openrtb_ext.BidderName]*firstpartydata.ResolvedFirstPartyData, bidder string) bool {
+	fpdToApply, exists := fpd[openrtb_ext.BidderName(bidder)]
+	if !exists || fpdToApply == nil {
+		return false
+	}
+	if fpdToApply.User == nil {
+		return false
+	}
+	fpdUserEIDs := fpdToApply.User.EIDs
+
+	if len(fpdUserEIDs) == 0 {
+		return false
+	}
+	if req.User == nil {
+		return true
+	}
+
+	reqUserEIDs := req.User.EIDs
+
+	if len(reqUserEIDs) != len(fpdUserEIDs) {
+		return true
+	}
+
+	// if bidder fpd didn't have user.eids then user.eids will remain the same
+	// hence we can use the same index to compare elements
+	for i := range reqUserEIDs {
+		pReqUserEID := &reqUserEIDs[i]
+		pFpdUserEID := &fpdUserEIDs[i]
+		if pReqUserEID != pFpdUserEID {
+			return true
+		}
+	}
+	return false
+}
+
+// removeImpsWithStoredResponses deletes imps with stored bid resp
+func removeImpsWithStoredResponses(req *openrtb_ext.RequestWrapper, impBidResponses map[string]json.RawMessage) {
+	if len(impBidResponses) == 0 {
+		return
+	}
+
+	imps := req.Imp
+	req.Imp = nil //to indicate this bidder doesn't have real requests
+	for _, imp := range imps {
+		if _, ok := impBidResponses[imp.ID]; !ok {
+			//add real imp back to request
+			req.Imp = append(req.Imp, imp)
+		}
+	}
+}
+
+// PreloadExts ensures all exts have been unmarshalled into wrapper ext objects
+func PreloadExts(req *openrtb_ext.RequestWrapper) error {
+	if req == nil {
+		return nil
+	}
+	if _, err := req.GetRequestExt(); err != nil {
+		return err
+	}
+	if _, err := req.GetUserExt(); err != nil {
+		return err
+	}
+	if _, err := req.GetDeviceExt(); err != nil {
+		return err
+	}
+	if _, err := req.GetRegExt(); err != nil {
+		return err
+	}
+	if _, err := req.GetSiteExt(); err != nil {
+		return err
+	}
+	if _, err := req.GetDOOHExt(); err != nil {
+		return err
+	}
+	if _, err := req.GetSourceExt(); err != nil {
+		return err
+	}
+	return nil
+}
+
 func (rs *requestSplitter) isBidderBlockedByPrivacy(r *openrtb_ext.RequestWrapper, activities privacy.ActivityControl, auctionPermissions gdpr.AuctionPermissions, coreBidder, bidderName openrtb_ext.BidderName) bool {
 	// activities control
 	scope := privacy.Component{Type: privacy.ComponentTypeBidder, Name: bidderName.String()}
@@ -194,13 +363,12 @@ func (rs *requestSplitter) isBidderBlockedByPrivacy(r *openrtb_ext.RequestWrappe
 	return false
 }
 
-func (rs *requestSplitter) applyPrivacy(bidderRequest *BidderRequest, auctionReq AuctionRequest, auctionPermissions gdpr.AuctionPermissions, ccpaEnforcer privacy.PolicyEnforcer, lmt bool, coppa bool) error {
-	scope := privacy.Component{Type: privacy.ComponentTypeBidder, Name: bidderRequest.BidderName.String()}
+func (rs *requestSplitter) applyPrivacy(reqWrapper *openrtb_ext.RequestWrapper, coreBidderName openrtb_ext.BidderName, bidderName string, auctionReq AuctionRequest, auctionPermissions gdpr.AuctionPermissions, ccpaEnforcer privacy.PolicyEnforcer, lmt bool, coppa bool) error {
+	scope := privacy.Component{Type: privacy.ComponentTypeBidder, Name: bidderName}
 	ipConf := privacy.IPConf{IPV6: auctionReq.Account.Privacy.IPv6Config, IPV4: auctionReq.Account.Privacy.IPv4Config}
 
-	reqWrapper := &openrtb_ext.RequestWrapper{
-		BidRequest: ortb.CloneBidRequestPartial(bidderRequest.BidRequest),
-	}
+	bidRequest := ortb.CloneBidRequestPartial(reqWrapper.BidRequest)
+	reqWrapper.BidRequest = bidRequest
 
 	passIDActivityAllowed := auctionReq.Activities.Allow(privacy.ActivityTransmitUserFPD, scope, privacy.NewRequestFromBidRequest(*reqWrapper))
 	buyerUIDSet := reqWrapper.User != nil && reqWrapper.User.BuyerUID != ""
@@ -214,13 +382,13 @@ func (rs *requestSplitter) applyPrivacy(bidderRequest *BidderRequest, auctionReq
 			buyerUIDRemoved = true
 		}
 
-		if ccpaEnforcer.ShouldEnforce(bidderRequest.BidderName.String()) {
+		if ccpaEnforcer.ShouldEnforce(bidderName) {
 			privacy.ScrubDeviceIDsIPsUserDemoExt(reqWrapper, ipConf, "eids", false)
 			buyerUIDRemoved = true
 		}
 	}
 	if buyerUIDSet && buyerUIDRemoved {
-		rs.me.RecordAdapterBuyerUIDScrubbed(bidderRequest.BidderCoreName)
+		rs.me.RecordAdapterBuyerUIDScrubbed(coreBidderName)
 	}
 
 	passGeoActivityAllowed := auctionReq.Activities.Allow(privacy.ActivityTransmitPreciseGeo, scope, privacy.NewRequestFromBidRequest(*reqWrapper))
@@ -230,7 +398,7 @@ func (rs *requestSplitter) applyPrivacy(bidderRequest *BidderRequest, auctionReq
 		if !auctionPermissions.PassGeo {
 			privacy.ScrubGeoAndDeviceIP(reqWrapper, ipConf)
 		}
-		if ccpaEnforcer.ShouldEnforce(bidderRequest.BidderName.String()) {
+		if ccpaEnforcer.ShouldEnforce(bidderName) {
 			privacy.ScrubDeviceIDsIPsUserDemoExt(reqWrapper, ipConf, "eids", false)
 		}
 	}
@@ -248,7 +416,7 @@ func (rs *requestSplitter) applyPrivacy(bidderRequest *BidderRequest, auctionReq
 		return err
 	}
 
-	bidderRequest.BidRequest = reqWrapper.BidRequest
+	// *bidRequest = *reqWrapper.BidRequest
 	return nil
 }
 
@@ -322,143 +490,44 @@ func ExtractReqExtBidderParamsMap(bidRequest *openrtb2.BidRequest) (map[string]j
 	return bidderParams, nil
 }
 
-func getAuctionBidderRequests(auctionRequest AuctionRequest,
-	requestExt *openrtb_ext.ExtRequest,
-	bidderToSyncerKey map[string]string,
-	impsByBidder map[string][]openrtb2.Imp,
-	requestAliases map[string]string,
-	hostSChainNode *openrtb2.SupplyChainNode) ([]BidderRequest, []error) {
-
-	bidderRequests := make([]BidderRequest, 0, len(impsByBidder))
-	req := auctionRequest.BidRequestWrapper
-	explicitBuyerUIDs, err := extractBuyerUIDs(req.BidRequest.User)
-	if err != nil {
-		return nil, []error{err}
-	}
-
-	bidderParamsInReqExt, err := ExtractReqExtBidderParamsMap(req.BidRequest)
-	if err != nil {
-		return nil, []error{err}
-	}
-
-	sChainWriter, err := schain.NewSChainWriter(requestExt, hostSChainNode)
+func buildRequestExtForBidder(bidder string, req *openrtb_ext.RequestWrapper, reqExtBidderParams map[string]json.RawMessage, cfgABC *openrtb_ext.ExtAlternateBidderCodes) error {
+	reqExt, err := req.GetRequestExt()
 	if err != nil {
-		return nil, []error{err}
-	}
-
-	lowerCaseExplicitBuyerUIDs := make(map[string]string)
-	for bidder, uid := range explicitBuyerUIDs {
-		lowerKey := strings.ToLower(bidder)
-		lowerCaseExplicitBuyerUIDs[lowerKey] = uid
-	}
-
-	var errs []error
-	for bidder, imps := range impsByBidder {
-		coreBidder, isRequestAlias := resolveBidder(bidder, requestAliases)
-
-		reqCopy := *req.BidRequest
-		reqCopy.Imp = imps
-
-		sChainWriter.Write(&reqCopy, bidder)
-
-		reqCopy.Ext, err = buildRequestExtForBidder(bidder, req.BidRequest.Ext, requestExt, bidderParamsInReqExt, auctionRequest.Account.AlternateBidderCodes)
-		if err != nil {
-			return nil, []error{err}
-		}
-
-		if err := removeUnpermissionedEids(&reqCopy, bidder, requestExt); err != nil {
-			errs = append(errs, fmt.Errorf("unable to enforce request.ext.prebid.data.eidpermissions because %v", err))
-			continue
-		}
-
-		bidderRequest := BidderRequest{
-			BidderName:     openrtb_ext.BidderName(bidder),
-			BidderCoreName: coreBidder,
-			IsRequestAlias: isRequestAlias,
-			BidRequest:     &reqCopy,
-			BidderLabels: metrics.AdapterLabels{
-				Source:      auctionRequest.LegacyLabels.Source,
-				RType:       auctionRequest.LegacyLabels.RType,
-				Adapter:     coreBidder,
-				PubID:       auctionRequest.LegacyLabels.PubID,
-				CookieFlag:  auctionRequest.LegacyLabels.CookieFlag,
-				AdapterBids: metrics.AdapterBidPresent,
-			},
-		}
-
-		syncerKey := bidderToSyncerKey[string(coreBidder)]
-		if hadSync := prepareUser(&reqCopy, bidder, syncerKey, lowerCaseExplicitBuyerUIDs, auctionRequest.UserSyncs); !hadSync && req.BidRequest.App == nil {
-			bidderRequest.BidderLabels.CookieFlag = metrics.CookieFlagNo
-		} else {
-			bidderRequest.BidderLabels.CookieFlag = metrics.CookieFlagYes
-		}
-
-		bidderRequests = append(bidderRequests, bidderRequest)
+		return err
 	}
-	return bidderRequests, errs
-}
+	prebid := reqExt.GetPrebid()
 
-func buildRequestExtForBidder(bidder string, requestExt json.RawMessage, requestExtParsed *openrtb_ext.ExtRequest, bidderParamsInReqExt map[string]json.RawMessage, cfgABC *openrtb_ext.ExtAlternateBidderCodes) (json.RawMessage, error) {
-	// Resolve alternatebiddercode for current bidder
+	// Resolve alternatebiddercode
 	var reqABC *openrtb_ext.ExtAlternateBidderCodes
-	if len(requestExt) != 0 && requestExtParsed != nil && requestExtParsed.Prebid.AlternateBidderCodes != nil {
-		reqABC = requestExtParsed.Prebid.AlternateBidderCodes
+	if prebid != nil && prebid.AlternateBidderCodes != nil {
+		reqABC = prebid.AlternateBidderCodes
 	}
 	alternateBidderCodes := buildRequestExtAlternateBidderCodes(bidder, cfgABC, reqABC)
 
-	if (len(requestExt) == 0 || requestExtParsed == nil) && alternateBidderCodes == nil {
-		return nil, nil
-	}
-
-	// Resolve Bidder Params
-	var bidderParams json.RawMessage
-	if bidderParamsInReqExt != nil {
-		bidderParams = bidderParamsInReqExt[bidder]
-	}
-
-	// Copy Allowed Fields
-	// Per: https://docs.prebid.org/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#prebid-server-ortb2-extension-summary
-	prebid := openrtb_ext.ExtRequestPrebid{
-		BidderParams:         bidderParams,
-		AlternateBidderCodes: alternateBidderCodes,
-	}
-
-	if requestExtParsed != nil {
-		prebid.Channel = requestExtParsed.Prebid.Channel
-		prebid.CurrencyConversions = requestExtParsed.Prebid.CurrencyConversions
-		prebid.Debug = requestExtParsed.Prebid.Debug
-		prebid.Integration = requestExtParsed.Prebid.Integration
-		prebid.MultiBid = buildRequestExtMultiBid(bidder, requestExtParsed.Prebid.MultiBid, alternateBidderCodes)
-		prebid.Sdk = requestExtParsed.Prebid.Sdk
-		prebid.Server = requestExtParsed.Prebid.Server
-	}
-
-	// Marshal New Prebid Object
-	prebidJson, err := jsonutil.Marshal(prebid)
-	if err != nil {
-		return nil, err
-	}
-
-	// Parse Existing Ext
-	extMap := make(map[string]json.RawMessage)
-	if len(requestExt) != 0 {
-		if err := jsonutil.Unmarshal(requestExt, &extMap); err != nil {
-			return nil, err
+	var prebidNew openrtb_ext.ExtRequestPrebid
+	if prebid == nil {
+		prebidNew = openrtb_ext.ExtRequestPrebid{
+			BidderParams:         reqExtBidderParams[bidder],
+			AlternateBidderCodes: alternateBidderCodes,
 		}
-	}
-
-	// Update Ext With Prebid Json
-	if bytes.Equal(prebidJson, []byte(`{}`)) {
-		delete(extMap, "prebid")
 	} else {
-		extMap["prebid"] = prebidJson
+		// Copy Allowed Fields
+		// Per: https://docs.prebid.org/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#prebid-server-ortb2-extension-summary
+		prebidNew = openrtb_ext.ExtRequestPrebid{
+			BidderParams:         reqExtBidderParams[bidder],
+			AlternateBidderCodes: alternateBidderCodes,
+			Channel:              prebid.Channel,
+			CurrencyConversions:  prebid.CurrencyConversions,
+			Debug:                prebid.Debug,
+			Integration:          prebid.Integration,
+			MultiBid:             buildRequestExtMultiBid(bidder, prebid.MultiBid, alternateBidderCodes),
+			Sdk:                  prebid.Sdk,
+			Server:               prebid.Server,
+		}
 	}
 
-	if len(extMap) > 0 {
-		return jsonutil.Marshal(extMap)
-	} else {
-		return nil, nil
-	}
+	reqExt.SetPrebid(&prebidNew)
+	return nil
 }
 
 func buildRequestExtAlternateBidderCodes(bidder string, accABC *openrtb_ext.ExtAlternateBidderCodes, reqABC *openrtb_ext.ExtAlternateBidderCodes) *openrtb_ext.ExtAlternateBidderCodes {
@@ -697,7 +766,7 @@ func createSanitizedImpExt(impExt, impExtPrebid map[string]json.RawMessage) (map
 //
 // In this function, "givenBidder" may or may not be an alias. "coreBidder" must *not* be an alias.
 // It returns true if a Cookie User Sync existed, and false otherwise.
-func prepareUser(req *openrtb2.BidRequest, givenBidder, syncerKey string, explicitBuyerUIDs map[string]string, usersyncs IdFetcher) bool {
+func prepareUser(req *openrtb_ext.RequestWrapper, givenBidder, syncerKey string, explicitBuyerUIDs map[string]string, usersyncs IdFetcher) bool {
 	cookieId, hadCookie, _ := usersyncs.GetUID(syncerKey)
 
 	if id, ok := explicitBuyerUIDs[strings.ToLower(givenBidder)]; ok {
@@ -725,42 +794,32 @@ func copyWithBuyerUID(user *openrtb2.User, buyerUID string) *openrtb2.User {
 	return user
 }
 
-// removeUnpermissionedEids modifies the request to remove any request.user.ext.eids not permissions for the specific bidder
-func removeUnpermissionedEids(request *openrtb2.BidRequest, bidder string, requestExt *openrtb_ext.ExtRequest) error {
+// removeUnpermissionedEids modifies the request to remove any request.user.eids not permissions for the specific bidder
+func removeUnpermissionedEids(reqWrapper *openrtb_ext.RequestWrapper, bidder string) error {
 	// ensure request might have eids (as much as we can check before unmarshalling)
-	if request.User == nil || len(request.User.Ext) == 0 {
+	if reqWrapper.User == nil || len(reqWrapper.User.EIDs) == 0 {
 		return nil
 	}
 
 	// ensure request has eid permissions to enforce
-	if requestExt == nil || requestExt.Prebid.Data == nil || len(requestExt.Prebid.Data.EidPermissions) == 0 {
-		return nil
-	}
-
-	// low level unmarshal to preserve other request.user.ext values. prebid server is non-destructive.
-	var userExt map[string]json.RawMessage
-	if err := jsonutil.Unmarshal(request.User.Ext, &userExt); err != nil {
+	reqExt, err := reqWrapper.GetRequestExt()
+	if err != nil {
 		return err
 	}
-
-	eidsJSON, eidsSpecified := userExt["eids"]
-	if !eidsSpecified {
+	if reqExt == nil {
 		return nil
 	}
 
-	var eids []openrtb2.EID
-	if err := jsonutil.Unmarshal(eidsJSON, &eids); err != nil {
-		return err
-	}
-
-	// exit early if there are no eids (empty array)
-	if len(eids) == 0 {
+	reqExtPrebid := reqExt.GetPrebid()
+	if reqExtPrebid == nil || reqExtPrebid.Data == nil || len(reqExtPrebid.Data.EidPermissions) == 0 {
 		return nil
 	}
 
+	eids := reqWrapper.User.EIDs
+
 	// translate eid permissions to a map for quick lookup
 	eidRules := make(map[string][]string)
-	for _, p := range requestExt.Prebid.Data.EidPermissions {
+	for _, p := range reqExtPrebid.Data.EidPermissions {
 		eidRules[p.Source] = p.Bidders
 	}
 
@@ -788,37 +847,14 @@ func removeUnpermissionedEids(request *openrtb2.BidRequest, bidder string, reque
 		return nil
 	}
 
-	// marshal eidsAllowed back to userExt
 	if len(eidsAllowed) == 0 {
-		delete(userExt, "eids")
+		reqWrapper.User.EIDs = nil
 	} else {
-		eidsRaw, err := jsonutil.Marshal(eidsAllowed)
-		if err != nil {
-			return err
-		}
-		userExt["eids"] = eidsRaw
-	}
-
-	// exit early if userExt is empty
-	if len(userExt) == 0 {
-		setUserExtWithCopy(request, nil)
-		return nil
-	}
-
-	userExtJSON, err := jsonutil.Marshal(userExt)
-	if err != nil {
-		return err
+		reqWrapper.User.EIDs = eidsAllowed
 	}
-	setUserExtWithCopy(request, userExtJSON)
 	return nil
 }
 
-func setUserExtWithCopy(request *openrtb2.BidRequest, userExtJSON json.RawMessage) {
-	userCopy := *request.User
-	userCopy.Ext = userExtJSON
-	request.User = &userCopy
-}
-
 // resolveBidder returns the known BidderName associated with bidder, if bidder is an alias. If it's not an alias, the bidder is returned.
 func resolveBidder(bidder string, requestAliases map[string]string) (openrtb_ext.BidderName, bool) {
 	normalisedBidderName, _ := openrtb_ext.NormalizeBidderName(bidder)
@@ -951,14 +987,19 @@ func getExtBidAdjustmentFactors(requestExtPrebid *openrtb_ext.ExtRequestPrebid)
 	return nil
 }
 
-func applyFPD(fpd map[openrtb_ext.BidderName]*firstpartydata.ResolvedFirstPartyData, r BidderRequest) {
+func applyFPD(fpd map[openrtb_ext.BidderName]*firstpartydata.ResolvedFirstPartyData,
+	coreBidderName openrtb_ext.BidderName,
+	bidderName openrtb_ext.BidderName,
+	isRequestAlias bool,
+	reqWrapper *openrtb_ext.RequestWrapper,
+	fpdUserEIDsPresent bool) {
 	if fpd == nil {
 		return
 	}
 
-	bidder := r.BidderCoreName
-	if r.IsRequestAlias {
-		bidder = r.BidderName
+	bidder := coreBidderName
+	if isRequestAlias {
+		bidder = bidderName
 	}
 
 	fpdToApply, exists := fpd[bidder]
@@ -967,77 +1008,31 @@ func applyFPD(fpd map[openrtb_ext.BidderName]*firstpartydata.ResolvedFirstPartyD
 	}
 
 	if fpdToApply.Site != nil {
-		r.BidRequest.Site = fpdToApply.Site
+		reqWrapper.Site = fpdToApply.Site
 	}
 
 	if fpdToApply.App != nil {
-		r.BidRequest.App = fpdToApply.App
+		reqWrapper.App = fpdToApply.App
 	}
 
 	if fpdToApply.User != nil {
-		//BuyerUID is a value obtained between fpd extraction and fpd application.
-		//BuyerUID needs to be set back to fpd before applying this fpd to final bidder request
-		if r.BidRequest.User != nil && len(r.BidRequest.User.BuyerUID) > 0 {
-			fpdToApply.User.BuyerUID = r.BidRequest.User.BuyerUID
-		}
-		r.BidRequest.User = fpdToApply.User
-	}
-}
-
-func buildBidResponseRequest(req *openrtb2.BidRequest,
-	bidderImpResponses stored_responses.BidderImpsWithBidResponses,
-	requestAliases map[string]string,
-	bidderImpReplaceImpID stored_responses.BidderImpReplaceImpID) map[openrtb_ext.BidderName]BidderRequest {
-
-	bidderToBidderResponse := make(map[openrtb_ext.BidderName]BidderRequest)
-
-	for bidderName, impResps := range bidderImpResponses {
-		resolvedBidder, isRequestAlias := resolveBidder(string(bidderName), requestAliases)
-		bidderToBidderResponse[bidderName] = BidderRequest{
-			BidRequest:            req,
-			BidderCoreName:        resolvedBidder,
-			BidderName:            bidderName,
-			BidderStoredResponses: impResps,
-			ImpReplaceImpId:       bidderImpReplaceImpID[string(bidderName)],
-			IsRequestAlias:        isRequestAlias,
-			BidderLabels:          metrics.AdapterLabels{Adapter: resolvedBidder},
-		}
-	}
-	return bidderToBidderResponse
-}
-
-func mergeBidderRequests(allBidderRequests []BidderRequest, bidderNameToBidderReq map[openrtb_ext.BidderName]BidderRequest) []BidderRequest {
-	if len(allBidderRequests) == 0 && len(bidderNameToBidderReq) == 0 {
-		return allBidderRequests
-	}
-	if len(allBidderRequests) == 0 && len(bidderNameToBidderReq) > 0 {
-		for _, v := range bidderNameToBidderReq {
-			allBidderRequests = append(allBidderRequests, v)
-		}
-		return allBidderRequests
-	} else if len(allBidderRequests) > 0 && len(bidderNameToBidderReq) > 0 {
-		//merge bidder requests with real imps and imps with stored resp
-		for bn, br := range bidderNameToBidderReq {
-			found := false
-			for i, ar := range allBidderRequests {
-				if ar.BidderName == bn {
-					//bidder req with real imps and imps with stored resp
-					allBidderRequests[i].BidderStoredResponses = br.BidderStoredResponses
-					found = true
-					break
-				}
+		if reqWrapper.User != nil {
+			if len(reqWrapper.User.BuyerUID) > 0 {
+				//BuyerUID is a value obtained between fpd extraction and fpd application.
+				//BuyerUID needs to be set back to fpd before applying this fpd to final bidder request
+				fpdToApply.User.BuyerUID = reqWrapper.User.BuyerUID
 			}
-			if !found {
-				//bidder req with stored bid responses only
-				br.BidRequest.Imp = nil // to indicate this bidder request has bidder responses only
-				allBidderRequests = append(allBidderRequests, br)
+
+			// if FPD config didn't have user.eids - use reqWrapper.User.EIDs after removeUnpermissionedEids
+			if !fpdUserEIDsPresent {
+				fpdToApply.User.EIDs = reqWrapper.User.EIDs
 			}
 		}
+		reqWrapper.User = fpdToApply.User
 	}
-	return allBidderRequests
 }
 
-func setLegacyGDPRFromGPP(r *openrtb2.BidRequest, gpp gpplib.GppContainer) {
+func setLegacyGDPRFromGPP(r *openrtb_ext.RequestWrapper, gpp gpplib.GppContainer) {
 	if r.Regs != nil && r.Regs.GDPR == nil {
 		if r.Regs.GPPSID != nil {
 			// Set to 0 unless SID exists
@@ -1066,13 +1061,12 @@ func setLegacyGDPRFromGPP(r *openrtb2.BidRequest, gpp gpplib.GppContainer) {
 			}
 		}
 	}
-
 }
-func setLegacyUSPFromGPP(r *openrtb2.BidRequest, gpp gpplib.GppContainer) {
+
+func setLegacyUSPFromGPP(r *openrtb_ext.RequestWrapper, gpp gpplib.GppContainer) {
 	if r.Regs == nil {
 		return
 	}
-
 	if len(r.Regs.USPrivacy) > 0 || r.Regs.GPPSID == nil {
 		return
 	}
@@ -1087,7 +1081,6 @@ func setLegacyUSPFromGPP(r *openrtb2.BidRequest, gpp gpplib.GppContainer) {
 			}
 		}
 	}
-
 }
 
 func WrapJSONInData(data []byte) []byte {
@@ -1148,24 +1141,20 @@ func getPrebidMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
 	}
 }
 
-func applyBidAdjustmentToFloor(allBidderRequests []BidderRequest, bidAdjustmentFactors map[string]float64) {
-
-	if len(bidAdjustmentFactors) == 0 {
+func applyBidAdjustmentToFloor(req *openrtb_ext.RequestWrapper, bidder string, adjustmentFactors map[string]float64) {
+	if len(adjustmentFactors) == 0 {
 		return
 	}
 
-	for _, bidderRequest := range allBidderRequests {
-		bidAdjustment := 1.0
-
-		if bidAdjustemntValue, ok := bidAdjustmentFactors[string(bidderRequest.BidderName)]; ok {
-			bidAdjustment = bidAdjustemntValue
-		}
+	bidAdjustment := 1.0
+	if v, ok := adjustmentFactors[bidder]; ok && v != 0.0 {
+		bidAdjustment = v
+	}
 
-		if bidAdjustment != 1.0 {
-			for index, imp := range bidderRequest.BidRequest.Imp {
-				imp.BidFloor = imp.BidFloor / bidAdjustment
-				bidderRequest.BidRequest.Imp[index] = imp
-			}
+	if bidAdjustment != 1.0 {
+		for index, imp := range req.Imp {
+			imp.BidFloor = imp.BidFloor / bidAdjustment
+			req.Imp[index] = imp
 		}
 	}
 }
diff --git a/exchange/utils_test.go b/exchange/utils_test.go
index 5d2a83d5b49..67ad46dd725 100644
--- a/exchange/utils_test.go
+++ b/exchange/utils_test.go
@@ -4,24 +4,21 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
-	"fmt"
 	"sort"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/stored_responses"
-
 	gpplib "github.com/prebid/go-gpp"
 	"github.com/prebid/go-gpp/constants"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/firstpartydata"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/firstpartydata"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 	"github.com/stretchr/testify/require"
@@ -967,7 +964,7 @@ func TestCleanOpenRTBRequestsWithBidResponses(t *testing.T) {
 						W: ptrutil.ToPtr[int64](300),
 						H: ptrutil.ToPtr[int64](250),
 					},
-					Ext: json.RawMessage(`{"prebid":{"bidder":{"bidderA":{"placementId":"123"}}}}`),
+					Ext: json.RawMessage(`{"prebid":{"bidder":{"bidderA":{"placementId":"123"},"bidderB":{"placementId":"456"}}}}`),
 				},
 			},
 			expectedBidderRequests: map[string]BidderRequest{
@@ -998,7 +995,7 @@ func TestCleanOpenRTBRequestsWithBidResponses(t *testing.T) {
 						W: ptrutil.ToPtr[int64](300),
 						H: ptrutil.ToPtr[int64](250),
 					},
-					Ext: json.RawMessage(`{"prebid":{"bidder":{"bidderA":{"placementId":"123"}}}}`),
+					Ext: json.RawMessage(`{"prebid":{"bidder":{"bidderA":{"placementId":"123"},"bidderB":{"placementId":"456"}}}}`),
 				},
 				{
 					ID:  "imp-id2",
@@ -1038,7 +1035,7 @@ func TestCleanOpenRTBRequestsWithBidResponses(t *testing.T) {
 						W: ptrutil.ToPtr[int64](300),
 						H: ptrutil.ToPtr[int64](250),
 					},
-					Ext: json.RawMessage(`{"prebid":{"bidder":{"bidderA":{"placementId":"123"}}}}`),
+					Ext: json.RawMessage(`{"prebid":{"bidder":{"bidderA":{"placementId":"123"},"bidderB":{"placementId":"456"}}}}`),
 				},
 				{
 					ID:  "imp-id2",
@@ -1104,11 +1101,11 @@ func TestCleanOpenRTBRequestsWithBidResponses(t *testing.T) {
 			imps: []openrtb2.Imp{
 				{
 					ID:  "imp-id1",
-					Ext: json.RawMessage(`"prebid": {}`),
+					Ext: json.RawMessage(`{"prebid":{"bidder":{"bidderA":{"placementId":"123"}}}}`),
 				},
 				{
 					ID:  "imp-id2",
-					Ext: json.RawMessage(`"prebid": {}`),
+					Ext: json.RawMessage(`{"prebid":{"bidder":{"bidderA":{"placementId":"123"}}}}`),
 				},
 			},
 			expectedBidderRequests: map[string]BidderRequest{
@@ -1279,7 +1276,7 @@ func TestCleanOpenRTBRequestsCCPA(t *testing.T) {
 		req := newBidRequest(t)
 		req.Ext = test.reqExt
 		req.Regs = &openrtb2.Regs{
-			Ext: json.RawMessage(`{"us_privacy":"` + test.ccpaConsent + `"}`),
+			USPrivacy: test.ccpaConsent,
 		}
 
 		privacyConfig := config.Privacy{
@@ -1339,32 +1336,32 @@ func TestCleanOpenRTBRequestsCCPA(t *testing.T) {
 
 func TestCleanOpenRTBRequestsCCPAErrors(t *testing.T) {
 	testCases := []struct {
-		description string
-		reqExt      json.RawMessage
-		reqRegsExt  json.RawMessage
-		expectError error
+		description    string
+		reqExt         json.RawMessage
+		reqRegsPrivacy string
+		expectError    error
 	}{
 		{
-			description: "Invalid Consent",
-			reqExt:      json.RawMessage(`{"prebid":{"nosale":["*"]}}`),
-			reqRegsExt:  json.RawMessage(`{"us_privacy":"malformed"}`),
+			description:    "Invalid Consent",
+			reqExt:         json.RawMessage(`{"prebid":{"nosale":["*"]}}`),
+			reqRegsPrivacy: "malformed",
 			expectError: &errortypes.Warning{
 				Message:     "request.regs.ext.us_privacy must contain 4 characters",
 				WarningCode: errortypes.InvalidPrivacyConsentWarningCode,
 			},
 		},
 		{
-			description: "Invalid No Sale Bidders",
-			reqExt:      json.RawMessage(`{"prebid":{"nosale":["*", "another"]}}`),
-			reqRegsExt:  json.RawMessage(`{"us_privacy":"1NYN"}`),
-			expectError: errors.New("request.ext.prebid.nosale is invalid: can only specify all bidders if no other bidders are provided"),
+			description:    "Invalid No Sale Bidders",
+			reqExt:         json.RawMessage(`{"prebid":{"nosale":["*", "another"]}}`),
+			reqRegsPrivacy: "1NYN",
+			expectError:    errors.New("request.ext.prebid.nosale is invalid: can only specify all bidders if no other bidders are provided"),
 		},
 	}
 
 	for _, test := range testCases {
 		req := newBidRequest(t)
 		req.Ext = test.reqExt
-		req.Regs = &openrtb2.Regs{Ext: test.reqRegsExt}
+		req.Regs = &openrtb2.Regs{USPrivacy: test.reqRegsPrivacy}
 
 		var reqExtStruct openrtb_ext.ExtRequest
 		err := jsonutil.UnmarshalValid(req.Ext, &reqExtStruct)
@@ -1480,46 +1477,114 @@ func TestCleanOpenRTBRequestsSChain(t *testing.T) {
 	testCases := []struct {
 		description   string
 		inExt         json.RawMessage
-		inSourceExt   json.RawMessage
+		inSChain      *openrtb2.SupplyChain
 		outRequestExt json.RawMessage
-		outSourceExt  json.RawMessage
+		outSource     *openrtb2.Source
 		hasError      bool
+		ortbVersion   string
 	}{
 		{
 			description:   "nil",
 			inExt:         nil,
-			inSourceExt:   nil,
+			inSChain:      nil,
 			outRequestExt: nil,
-			outSourceExt:  nil,
+			outSource: &openrtb2.Source{
+				TID:    "testTID",
+				SChain: nil,
+				Ext:    nil,
+			},
 		},
 		{
-			description:   "ORTB 2.5 chain at source.ext.schain",
-			inExt:         nil,
-			inSourceExt:   json.RawMessage(`{` + seller1SChain + `}`),
+			description: "Supply Chain defined in request.Source.supplyChain",
+			inExt:       nil,
+			inSChain: &openrtb2.SupplyChain{
+				Complete: 1,
+				Ver:      "1.0",
+				Ext:      nil,
+				Nodes: []openrtb2.SupplyChainNode{
+					{
+						ASI: "directseller1.com",
+						SID: "00001",
+						RID: "BidRequest1",
+						HP:  openrtb2.Int8Ptr(1),
+						Ext: nil,
+					},
+				},
+			},
 			outRequestExt: nil,
-			outSourceExt:  json.RawMessage(`{` + seller1SChain + `}`),
+			outSource: &openrtb2.Source{
+				TID: "testTID",
+				SChain: &openrtb2.SupplyChain{
+					Complete: 1,
+					Ver:      "1.0",
+					Ext:      nil,
+					Nodes: []openrtb2.SupplyChainNode{
+						{
+							ASI: "directseller1.com",
+							SID: "00001",
+							RID: "BidRequest1",
+							HP:  openrtb2.Int8Ptr(1),
+							Ext: nil,
+						},
+					},
+				},
+				Ext: nil,
+			},
+			ortbVersion: "2.6",
 		},
 		{
-			description:   "ORTB 2.5 schain at request.ext.prebid.schains",
+			description:   "Supply Chain defined in request.ext.prebid.schains",
 			inExt:         json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
-			inSourceExt:   nil,
+			inSChain:      nil,
 			outRequestExt: nil,
-			outSourceExt:  json.RawMessage(`{` + seller1SChain + `}`),
+			outSource: &openrtb2.Source{
+				TID: "testTID",
+				SChain: &openrtb2.SupplyChain{
+					Complete: 1,
+					Ver:      "1.0",
+					Ext:      nil,
+					Nodes: []openrtb2.SupplyChainNode{
+						{
+							ASI: "directseller1.com",
+							SID: "00001",
+							RID: "BidRequest1",
+							HP:  openrtb2.Int8Ptr(1),
+							Ext: nil,
+						},
+					},
+				},
+				Ext: nil,
+			},
+			ortbVersion: "2.6",
 		},
 		{
-			description:   "schainwriter instantation error -- multiple bidder schains in ext.prebid.schains.",
-			inExt:         json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `},{"bidders":["appnexus"],` + seller2SChain + `}]}}`),
-			inSourceExt:   json.RawMessage(`{` + seller1SChain + `}`),
+			description: "schainwriter instantation error -- multiple bidder schains in ext.prebid.schains.",
+			inExt:       json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `},{"bidders":["appnexus"],` + seller2SChain + `}]}}`),
+			inSChain: &openrtb2.SupplyChain{
+				Complete: 1,
+				Ver:      "1.0",
+				Ext:      nil,
+				Nodes: []openrtb2.SupplyChainNode{
+					{
+						ASI: "directseller1.com",
+						SID: "00001",
+						RID: "BidRequest1",
+						HP:  openrtb2.Int8Ptr(1),
+						Ext: nil,
+					},
+				},
+			},
+
 			outRequestExt: nil,
-			outSourceExt:  nil,
+			outSource:     nil,
 			hasError:      true,
 		},
 	}
 
 	for _, test := range testCases {
 		req := newBidRequest(t)
-		if test.inSourceExt != nil {
-			req.Source.Ext = test.inSourceExt
+		if test.inSChain != nil {
+			req.Source.SChain = test.inSChain
 		}
 
 		var extRequest *openrtb_ext.ExtRequest
@@ -1548,7 +1613,7 @@ func TestCleanOpenRTBRequestsSChain(t *testing.T) {
 			privacyConfig:     config.Privacy{},
 			gdprPermsBuilder:  gdprPermissionsBuilder,
 			hostSChainNode:    nil,
-			bidderInfo:        config.BidderInfos{},
+			bidderInfo:        config.BidderInfos{"appnexus": config.BidderInfo{OpenRTB: &config.OpenRTBInfo{Version: test.ortbVersion}}},
 		}
 
 		bidderRequests, _, errs := reqSplitter.cleanOpenRTBRequests(context.Background(), auctionReq, extRequest, gdpr.SignalNo, false, map[string]float64{})
@@ -1558,7 +1623,7 @@ func TestCleanOpenRTBRequestsSChain(t *testing.T) {
 		} else {
 			result := bidderRequests[0]
 			assert.Nil(t, errs)
-			assert.Equal(t, test.outSourceExt, result.BidRequest.Source.Ext, test.description+":Source.Ext")
+			assert.Equal(t, test.outSource, result.BidRequest.Source, test.description+":Source")
 			assert.Equal(t, test.outRequestExt, result.BidRequest.Ext, test.description+":Ext")
 		}
 	}
@@ -2291,7 +2356,7 @@ func TestCleanOpenRTBRequestsGDPR(t *testing.T) {
 
 	for _, test := range testCases {
 		req := newBidRequest(t)
-		req.User.Ext = json.RawMessage(`{"consent":"` + test.gdprConsent + `"}`)
+		req.User.Consent = test.gdprConsent
 
 		privacyConfig := config.Privacy{}
 		accountConfig := config.Account{}
@@ -2473,14 +2538,14 @@ func TestCleanOpenRTBRequestsWithOpenRTBDowngrade(t *testing.T) {
 			req:         AuctionRequest{BidRequestWrapper: &openrtb_ext.RequestWrapper{BidRequest: bidReq}, UserSyncs: &emptyUsersync{}, TCF2Config: emptyTCF2Config},
 			expectRegs:  &downgradedRegs,
 			expectUser:  &downgradedUser,
-			bidderInfos: config.BidderInfos{"appnexus": config.BidderInfo{OpenRTB: &config.OpenRTBInfo{GPPSupported: false}}},
+			bidderInfos: config.BidderInfos{"appnexus": config.BidderInfo{OpenRTB: &config.OpenRTBInfo{GPPSupported: false, Version: "2.6"}}},
 		},
 		{
 			name:        "Supported",
 			req:         AuctionRequest{BidRequestWrapper: &openrtb_ext.RequestWrapper{BidRequest: bidReq}, UserSyncs: &emptyUsersync{}, TCF2Config: emptyTCF2Config},
 			expectRegs:  bidReq.Regs,
 			expectUser:  bidReq.User,
-			bidderInfos: config.BidderInfos{"appnexus": config.BidderInfo{OpenRTB: &config.OpenRTBInfo{GPPSupported: true}}},
+			bidderInfos: config.BidderInfos{"appnexus": config.BidderInfo{OpenRTB: &config.OpenRTBInfo{GPPSupported: true, Version: "2.6"}}},
 		},
 	}
 
@@ -2527,145 +2592,146 @@ func TestBuildRequestExtForBidder(t *testing.T) {
 	)
 
 	testCases := []struct {
-		description          string
+		name                 string
 		requestExt           json.RawMessage
 		bidderParams         map[string]json.RawMessage
 		alternateBidderCodes *openrtb_ext.ExtAlternateBidderCodes
 		expectedJson         json.RawMessage
 	}{
 		{
-			description:          "Nil",
+			name:                 "Nil",
 			bidderParams:         nil,
 			requestExt:           nil,
 			alternateBidderCodes: nil,
 			expectedJson:         nil,
 		},
 		{
-			description:          "Empty",
+			name:                 "Empty",
 			bidderParams:         nil,
 			alternateBidderCodes: nil,
 			requestExt:           json.RawMessage(`{}`),
 			expectedJson:         nil,
 		},
 		{
-			description:  "Prebid - Allowed Fields Only",
+			name:         "Prebid - Allowed Fields Only",
 			bidderParams: nil,
 			requestExt:   json.RawMessage(`{"prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true}, "server": {"externalurl": "url", "gvlid": 1, "datacenter": "2"}, "sdk": {"renderers": [{"name": "r1"}]}}}`),
 			expectedJson: json.RawMessage(`{"prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true}, "server": {"externalurl": "url", "gvlid": 1, "datacenter": "2"}, "sdk": {"renderers": [{"name": "r1"}]}}}`),
 		},
 		{
-			description:  "Prebid - Allowed Fields + Bidder Params",
+			name:         "Prebid - Allowed Fields + Bidder Params",
 			bidderParams: map[string]json.RawMessage{bidder: bidderParams},
 			requestExt:   json.RawMessage(`{"prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true}, "server": {"externalurl": "url", "gvlid": 1, "datacenter": "2"}, "sdk": {"renderers": [{"name": "r1"}]}}}`),
 			expectedJson: json.RawMessage(`{"prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true}, "server": {"externalurl": "url", "gvlid": 1, "datacenter": "2"}, "sdk": {"renderers": [{"name": "r1"}]}, "bidderparams":"bar"}}`),
 		},
 		{
-			description:  "Other",
+			name:         "Other",
 			bidderParams: nil,
 			requestExt:   json.RawMessage(`{"other":"foo"}`),
 			expectedJson: json.RawMessage(`{"other":"foo"}`),
 		},
 		{
-			description:  "Prebid + Other + Bider Params",
+			name:         "Prebid + Other + Bider Params",
 			bidderParams: map[string]json.RawMessage{bidder: bidderParams},
 			requestExt:   json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true}, "server": {"externalurl": "url", "gvlid": 1, "datacenter": "2"}, "sdk": {"renderers": [{"name": "r1"}]}}}`),
 			expectedJson: json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true}, "server": {"externalurl": "url", "gvlid": 1, "datacenter": "2"}, "sdk": {"renderers": [{"name": "r1"}]}, "bidderparams":"bar"}}`),
 		},
 		{
-			description:          "Prebid + AlternateBidderCodes in pbs config but current bidder not in AlternateBidderCodes config",
+			name:                 "Prebid + AlternateBidderCodes in pbs config but current bidder not in AlternateBidderCodes config",
 			bidderParams:         map[string]json.RawMessage{bidder: bidderParams},
 			alternateBidderCodes: &openrtb_ext.ExtAlternateBidderCodes{Enabled: true, Bidders: map[string]openrtb_ext.ExtAdapterAlternateBidderCodes{"bar": {Enabled: true, AllowedBidderCodes: []string{"*"}}}},
 			requestExt:           json.RawMessage(`{"other":"foo"}`),
 			expectedJson:         json.RawMessage(`{"other":"foo","prebid":{"alternatebiddercodes":{"enabled":true,"bidders":null},"bidderparams":"bar"}}`),
 		},
 		{
-			description:          "Prebid + AlternateBidderCodes in request",
+			name:                 "Prebid + AlternateBidderCodes in request",
 			bidderParams:         map[string]json.RawMessage{bidder: bidderParams},
 			alternateBidderCodes: &openrtb_ext.ExtAlternateBidderCodes{},
 			requestExt:           json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["foo2"]},"bar":{"enabled":true,"allowedbiddercodes":["ix"]}}}}}`),
 			expectedJson:         json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["foo2"]}}},"bidderparams":"bar"}}`),
 		},
 		{
-			description:          "Prebid + AlternateBidderCodes in request but current bidder not in AlternateBidderCodes config",
+			name:                 "Prebid + AlternateBidderCodes in request but current bidder not in AlternateBidderCodes config",
 			bidderParams:         map[string]json.RawMessage{bidder: bidderParams},
 			alternateBidderCodes: &openrtb_ext.ExtAlternateBidderCodes{},
 			requestExt:           json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"bar":{"enabled":true,"allowedbiddercodes":["ix"]}}}}}`),
 			expectedJson:         json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":null},"bidderparams":"bar"}}`),
 		},
 		{
-			description:          "Prebid + AlternateBidderCodes in both pbs config and in the request",
+			name:                 "Prebid + AlternateBidderCodes in both pbs config and in the request",
 			bidderParams:         map[string]json.RawMessage{bidder: bidderParams},
 			alternateBidderCodes: &openrtb_ext.ExtAlternateBidderCodes{Enabled: true, Bidders: map[string]openrtb_ext.ExtAdapterAlternateBidderCodes{"foo": {Enabled: true, AllowedBidderCodes: []string{"*"}}}},
 			requestExt:           json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["foo2"]},"bar":{"enabled":true,"allowedbiddercodes":["ix"]}}}}}`),
 			expectedJson:         json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["foo2"]}}},"bidderparams":"bar"}}`),
 		},
 		{
-			description:  "Prebid + Other + Bider Params + MultiBid.Bidder",
+			name:         "Prebid + Other + Bider Params + MultiBid.Bidder",
 			bidderParams: map[string]json.RawMessage{bidder: bidderParams},
 			requestExt:   json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"multibid":[{"bidder":"foo","maxbids":2,"targetbiddercodeprefix":"fmb"},{"bidders":["appnexus","groupm"],"maxbids":2}]}}`),
 			expectedJson: json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"multibid":[{"bidder":"foo","maxbids":2,"targetbiddercodeprefix":"fmb"}],"bidderparams":"bar"}}`),
 		},
 		{
-			description:  "Prebid + Other + Bider Params + MultiBid.Bidders",
+			name:         "Prebid + Other + Bider Params + MultiBid.Bidders",
 			bidderParams: map[string]json.RawMessage{bidder: bidderParams},
 			requestExt:   json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"multibid":[{"bidder":"pubmatic","maxbids":3,"targetbiddercodeprefix":"pubM"},{"bidders":["foo","groupm"],"maxbids":4}]}}`),
 			expectedJson: json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"multibid":[{"bidders":["foo"],"maxbids":4}],"bidderparams":"bar"}}`),
 		},
 		{
-			description:  "Prebid + Other + Bider Params + MultiBid (foo not in MultiBid)",
+			name:         "Prebid + Other + Bider Params + MultiBid (foo not in MultiBid)",
 			bidderParams: map[string]json.RawMessage{bidder: bidderParams},
 			requestExt:   json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"multibid":[{"bidder":"foo2","maxbids":2,"targetbiddercodeprefix":"fmb"},{"bidders":["appnexus","groupm"],"maxbids":2}]}}`),
 			expectedJson: json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"bidderparams":"bar"}}`),
 		},
 		{
-			description:  "Prebid + Other + Bider Params + MultiBid (foo not in MultiBid)",
+			name:         "Prebid + Other + Bider Params + MultiBid (foo not in MultiBid)",
 			bidderParams: map[string]json.RawMessage{bidder: bidderParams},
 			requestExt:   json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"multibid":[{"bidder":"foo2","maxbids":2,"targetbiddercodeprefix":"fmb"},{"bidders":["appnexus","groupm"],"maxbids":2}]}}`),
 			expectedJson: json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"bidderparams":"bar"}}`),
 		},
 		{
-			description:  "Prebid + AlternateBidderCodes.MultiBid.Bidder",
+			name:         "Prebid + AlternateBidderCodes.MultiBid.Bidder",
 			requestExt:   json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["pubmatic"]}}},"multibid":[{"bidder":"foo","maxbids":3,"targetbiddercodeprefix":"fmb"},{"bidder":"foo2","maxbids":4,"targetbiddercodeprefix":"fmb2"},{"bidder":"pubmatic","maxbids":5,"targetbiddercodeprefix":"pm"}]}}`),
 			expectedJson: json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["pubmatic"]}}},"multibid":[{"bidder":"foo","maxbids":3,"targetbiddercodeprefix":"fmb"},{"bidder":"pubmatic","maxbids":5,"targetbiddercodeprefix":"pm"}]}}`),
 		},
 		{
-			description:  "Prebid + AlternateBidderCodes.MultiBid.Bidders",
+			name:         "Prebid + AlternateBidderCodes.MultiBid.Bidders",
 			requestExt:   json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["pubmatic"]}}},"multibid":[{"bidder":"foo","maxbids":3,"targetbiddercodeprefix":"fmb"},{"bidders":["pubmatic","groupm"],"maxbids":4}]}}`),
 			expectedJson: json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["pubmatic"]}}},"multibid":[{"bidder":"foo","maxbids":3,"targetbiddercodeprefix":"fmb"},{"bidders":["pubmatic"],"maxbids":4}]}}`),
 		},
 		{
-			description:  "Prebid + AlternateBidderCodes.MultiBid.Bidder with *",
+			name:         "Prebid + AlternateBidderCodes.MultiBid.Bidder with *",
 			requestExt:   json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["*"]}}},"multibid":[{"bidder":"foo","maxbids":3,"targetbiddercodeprefix":"fmb"},{"bidder":"foo2","maxbids":4,"targetbiddercodeprefix":"fmb2"},{"bidder":"pubmatic","maxbids":5,"targetbiddercodeprefix":"pm"}]}}`),
 			expectedJson: json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["*"]}}},"multibid":[{"bidder":"foo","maxbids":3,"targetbiddercodeprefix":"fmb"},{"bidder":"foo2","maxbids":4,"targetbiddercodeprefix":"fmb2"},{"bidder":"pubmatic","maxbids":5,"targetbiddercodeprefix":"pm"}]}}`),
 		},
 		{
-			description:  "Prebid + AlternateBidderCodes.MultiBid.Bidders with *",
+			name:         "Prebid + AlternateBidderCodes.MultiBid.Bidders with *",
 			requestExt:   json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["*"]}}},"multibid":[{"bidder":"foo","maxbids":3,"targetbiddercodeprefix":"fmb"},{"bidders":["pubmatic","groupm"],"maxbids":4}]}}`),
 			expectedJson: json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["*"]}}},"multibid":[{"bidder":"foo","maxbids":3,"targetbiddercodeprefix":"fmb"},{"bidders":["pubmatic"],"maxbids":4},{"bidders":["groupm"],"maxbids":4}]}}`),
 		},
 		{
-			description:  "Prebid + AlternateBidderCodes + MultiBid",
+			name:         "Prebid + AlternateBidderCodes + MultiBid",
 			requestExt:   json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["foo2"]}}},"multibid":[{"bidder":"foo3","maxbids":3,"targetbiddercodeprefix":"fmb"},{"bidders":["pubmatic","groupm"],"maxbids":4}]}}`),
 			expectedJson: json.RawMessage(`{"other":"foo","prebid":{"integration":"a","channel":{"name":"b","version":"c"},"debug":true,"currency":{"rates":{"FOO":{"BAR":42}},"usepbsrates":true},"alternatebiddercodes":{"enabled":true,"bidders":{"foo":{"enabled":true,"allowedbiddercodes":["foo2"]}}}}}`),
 		},
 	}
 
 	for _, test := range testCases {
-		requestExtParsed := &openrtb_ext.ExtRequest{}
-		if test.requestExt != nil {
-			err := jsonutil.UnmarshalValid(test.requestExt, requestExtParsed)
-			if !assert.NoError(t, err, test.description+":parse_ext") {
-				continue
+		t.Run(test.name, func(t *testing.T) {
+			req := openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: test.requestExt,
+				},
 			}
-		}
+			err := buildRequestExtForBidder(bidder, &req, test.bidderParams, test.alternateBidderCodes)
+			assert.NoError(t, req.RebuildRequest())
+			assert.NoError(t, err)
 
-		actualJson, actualErr := buildRequestExtForBidder(bidder, test.requestExt, requestExtParsed, test.bidderParams, test.alternateBidderCodes)
-		if len(test.expectedJson) > 0 {
-			assert.JSONEq(t, string(test.expectedJson), string(actualJson), test.description+":json")
-		} else {
-			assert.Equal(t, test.expectedJson, actualJson, test.description+":json")
-		}
-		assert.NoError(t, actualErr, test.description+":err")
+			if len(test.expectedJson) > 0 {
+				assert.JSONEq(t, string(test.expectedJson), string(req.Ext))
+			} else {
+				assert.Equal(t, test.expectedJson, req.Ext)
+			}
+		})
 	}
 }
 
@@ -2673,28 +2739,37 @@ func TestBuildRequestExtForBidder_RequestExtParsedNil(t *testing.T) {
 	var (
 		bidder               = "foo"
 		requestExt           = json.RawMessage(`{}`)
-		requestExtParsed     *openrtb_ext.ExtRequest
 		bidderParams         map[string]json.RawMessage
 		alternateBidderCodes *openrtb_ext.ExtAlternateBidderCodes
 	)
 
-	actualJson, actualErr := buildRequestExtForBidder(bidder, requestExt, requestExtParsed, bidderParams, alternateBidderCodes)
-	assert.Nil(t, actualJson)
-	assert.NoError(t, actualErr)
+	req := openrtb_ext.RequestWrapper{
+		BidRequest: &openrtb2.BidRequest{
+			Ext: requestExt,
+		},
+	}
+	err := buildRequestExtForBidder(bidder, &req, bidderParams, alternateBidderCodes)
+	assert.NoError(t, req.RebuildRequest())
+	assert.Nil(t, req.Ext)
+	assert.NoError(t, err)
 }
 
 func TestBuildRequestExtForBidder_RequestExtMalformed(t *testing.T) {
 	var (
 		bidder               = "foo"
 		requestExt           = json.RawMessage(`malformed`)
-		requestExtParsed     = &openrtb_ext.ExtRequest{}
 		bidderParams         map[string]json.RawMessage
 		alternateBidderCodes *openrtb_ext.ExtAlternateBidderCodes
 	)
 
-	actualJson, actualErr := buildRequestExtForBidder(bidder, requestExt, requestExtParsed, bidderParams, alternateBidderCodes)
-	assert.Equal(t, json.RawMessage(nil), actualJson)
-	assert.EqualError(t, actualErr, "expect { or n, but found m")
+	req := openrtb_ext.RequestWrapper{
+		BidRequest: &openrtb2.BidRequest{
+			Ext: requestExt,
+		},
+	}
+	err := buildRequestExtForBidder(bidder, &req, bidderParams, alternateBidderCodes)
+	assert.NoError(t, req.RebuildRequest())
+	assert.EqualError(t, err, "expect { or n, but found m")
 }
 
 // newAdapterAliasBidRequest builds a BidRequest with aliases
@@ -2880,193 +2955,112 @@ func TestRemoveUnpermissionedEids(t *testing.T) {
 	bidder := "bidderA"
 
 	testCases := []struct {
-		description     string
-		userExt         json.RawMessage
-		eidPermissions  []openrtb_ext.ExtRequestPrebidDataEidPermission
-		expectedUserExt json.RawMessage
+		description      string
+		userEids         []openrtb2.EID
+		eidPermissions   []openrtb_ext.ExtRequestPrebidDataEidPermission
+		expectedUserEids []openrtb2.EID
 	}{
-		{
-			description: "Extension Nil",
-			userExt:     nil,
-			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
-				{Source: "source1", Bidders: []string{"bidderA"}},
-			},
-			expectedUserExt: nil,
-		},
-		{
-			description: "Extension Empty",
-			userExt:     json.RawMessage(`{}`),
-			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
-				{Source: "source1", Bidders: []string{"bidderA"}},
-			},
-			expectedUserExt: json.RawMessage(`{}`),
-		},
-		{
-			description: "Extension Empty - Keep Other Data",
-			userExt:     json.RawMessage(`{"other":42}`),
-			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
-				{Source: "source1", Bidders: []string{"bidderA"}},
-			},
-			expectedUserExt: json.RawMessage(`{"other":42}`),
-		},
+
 		{
 			description: "Eids Empty",
-			userExt:     json.RawMessage(`{"eids":[]}`),
+			userEids:    []openrtb2.EID{},
 			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
 				{Source: "source1", Bidders: []string{"bidderA"}},
 			},
-			expectedUserExt: json.RawMessage(`{"eids":[]}`),
+			expectedUserEids: []openrtb2.EID{},
 		},
 		{
-			description: "Eids Empty - Keep Other Data",
-			userExt:     json.RawMessage(`{"eids":[],"other":42}`),
-			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
-				{Source: "source1", Bidders: []string{"bidderA"}},
-			},
-			expectedUserExt: json.RawMessage(`{"eids":[],"other":42}`),
-		},
-		{
-			description:     "Allowed By Nil Permissions",
-			userExt:         json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
-			eidPermissions:  nil,
-			expectedUserExt: json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
+			description:      "Allowed By Nil Permissions",
+			userEids:         []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
+			eidPermissions:   nil,
+			expectedUserEids: []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
 		},
 		{
-			description:     "Allowed By Empty Permissions",
-			userExt:         json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
-			eidPermissions:  []openrtb_ext.ExtRequestPrebidDataEidPermission{},
-			expectedUserExt: json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
+			description:      "Allowed By Empty Permissions",
+			userEids:         []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
+			eidPermissions:   []openrtb_ext.ExtRequestPrebidDataEidPermission{},
+			expectedUserEids: []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
 		},
 		{
 			description: "Allowed By Specific Bidder",
-			userExt:     json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
+			userEids:    []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
 			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
 				{Source: "source1", Bidders: []string{"bidderA"}},
 			},
-			expectedUserExt: json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
+			expectedUserEids: []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
 		},
 		{
 			description: "Allowed By Specific Bidder - Case Insensitive",
-			userExt:     json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
+			userEids:    []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
 			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
 				{Source: "source1", Bidders: []string{"BIDDERA"}},
 			},
-			expectedUserExt: json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
+			expectedUserEids: []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
 		},
 		{
 			description: "Allowed By All Bidders",
-			userExt:     json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
+			userEids:    []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
 			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
 				{Source: "source1", Bidders: []string{"*"}},
 			},
-			expectedUserExt: json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
+			expectedUserEids: []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
 		},
 		{
 			description: "Allowed By Lack Of Matching Source",
-			userExt:     json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
+			userEids:    []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
 			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
 				{Source: "source2", Bidders: []string{"otherBidder"}},
 			},
-			expectedUserExt: json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
-		},
-		{
-			description: "Allowed - Keep Other Data",
-			userExt:     json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}],"other":42}`),
-			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
-				{Source: "source1", Bidders: []string{"bidderA"}},
-			},
-			expectedUserExt: json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}],"other":42}`),
+			expectedUserEids: []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
 		},
 		{
 			description: "Denied",
-			userExt:     json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}]}`),
+			userEids:    []openrtb2.EID{{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID"}}}},
 			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
 				{Source: "source1", Bidders: []string{"otherBidder"}},
 			},
-			expectedUserExt: nil,
+			expectedUserEids: nil,
 		},
 		{
-			description: "Denied - Keep Other Data",
-			userExt:     json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID"}]}],"otherdata":42}`),
-			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
-				{Source: "source1", Bidders: []string{"otherBidder"}},
+			description: "Mix Of Allowed By Specific Bidder, Allowed By Lack Of Matching Source, Denied",
+			userEids: []openrtb2.EID{
+				{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID1"}}},
+				{Source: "source2", UIDs: []openrtb2.UID{{ID: "anyID2"}}},
+				{Source: "source3", UIDs: []openrtb2.UID{{ID: "anyID3"}}},
 			},
-			expectedUserExt: json.RawMessage(`{"otherdata":42}`),
-		},
-		{
-			description: "Mix Of Allowed By Specific Bidder, Allowed By Lack Of Matching Source, Denied, Keep Other Data",
-			userExt:     json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID1"}]},{"source":"source2","uids":[{"id":"anyID2"}]},{"source":"source3","uids":[{"id":"anyID3"}]}],"other":42}`),
 			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
 				{Source: "source1", Bidders: []string{"bidderA"}},
 				{Source: "source3", Bidders: []string{"otherBidder"}},
 			},
-			expectedUserExt: json.RawMessage(`{"eids":[{"source":"source1","uids":[{"id":"anyID1"}]},{"source":"source2","uids":[{"id":"anyID2"}]}],"other":42}`),
+			expectedUserEids: []openrtb2.EID{
+				{Source: "source1", UIDs: []openrtb2.UID{{ID: "anyID1"}}},
+				{Source: "source2", UIDs: []openrtb2.UID{{ID: "anyID2"}}},
+			},
 		},
 	}
 
 	for _, test := range testCases {
-		request := &openrtb2.BidRequest{
-			User: &openrtb2.User{Ext: test.userExt},
-		}
+		t.Run(test.description, func(t *testing.T) {
+			request := &openrtb2.BidRequest{
+				User: &openrtb2.User{EIDs: test.userEids},
+			}
 
-		requestExt := &openrtb_ext.ExtRequest{
-			Prebid: openrtb_ext.ExtRequestPrebid{
+			reqWrapper := openrtb_ext.RequestWrapper{BidRequest: request}
+			re, _ := reqWrapper.GetRequestExt()
+			re.SetPrebid(&openrtb_ext.ExtRequestPrebid{
 				Data: &openrtb_ext.ExtRequestPrebidData{
 					EidPermissions: test.eidPermissions,
 				},
-			},
-		}
-
-		expectedRequest := &openrtb2.BidRequest{
-			User: &openrtb2.User{Ext: test.expectedUserExt},
-		}
-
-		resultErr := removeUnpermissionedEids(request, bidder, requestExt)
-		assert.NoError(t, resultErr, test.description)
-		assert.Equal(t, expectedRequest, request, test.description)
-	}
-}
-
-func TestRemoveUnpermissionedEidsUnmarshalErrors(t *testing.T) {
-	testCases := []struct {
-		description string
-		userExt     json.RawMessage
-		expectedErr string
-	}{
-		{
-			description: "Malformed Ext",
-			userExt:     json.RawMessage(`malformed`),
-			expectedErr: "expect { or n, but found m",
-		},
-		{
-			description: "Malformed Eid Array Type",
-			userExt:     json.RawMessage(`{"eids":[42]}`),
-			expectedErr: "cannot unmarshal []openrtb2.EID: expect { or n, but found 4",
-		},
-		{
-			description: "Malformed Eid Item Type",
-			userExt:     json.RawMessage(`{"eids":[{"source":42,"id":"anyID"}]}`),
-			expectedErr: "cannot unmarshal openrtb2.EID.Source: expects \" or n, but found 4",
-		},
-	}
-
-	for _, test := range testCases {
-		request := &openrtb2.BidRequest{
-			User: &openrtb2.User{Ext: test.userExt},
-		}
+			})
 
-		requestExt := &openrtb_ext.ExtRequest{
-			Prebid: openrtb_ext.ExtRequestPrebid{
-				Data: &openrtb_ext.ExtRequestPrebidData{
-					EidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
-						{Source: "source1", Bidders: []string{"*"}},
-					},
-				},
-			},
-		}
+			expectedRequest := &openrtb2.BidRequest{
+				User: &openrtb2.User{EIDs: test.expectedUserEids},
+			}
 
-		resultErr := removeUnpermissionedEids(request, "bidderA", requestExt)
-		assert.EqualError(t, resultErr, test.expectedErr, test.description)
+			resultErr := removeUnpermissionedEids(&reqWrapper, bidder)
+			assert.NoError(t, resultErr, test.description)
+			assert.Equal(t, expectedRequest, reqWrapper.BidRequest)
+		})
 	}
 }
 
@@ -3184,23 +3178,17 @@ func TestGetDebugInfo(t *testing.T) {
 
 func TestRemoveUnpermissionedEidsEmptyValidations(t *testing.T) {
 	testCases := []struct {
-		description string
-		request     *openrtb2.BidRequest
-		requestExt  *openrtb_ext.ExtRequest
+		description    string
+		request        *openrtb2.BidRequest
+		eidPermissions []openrtb_ext.ExtRequestPrebidDataEidPermission
 	}{
 		{
 			description: "Nil User",
 			request: &openrtb2.BidRequest{
 				User: nil,
 			},
-			requestExt: &openrtb_ext.ExtRequest{
-				Prebid: openrtb_ext.ExtRequestPrebid{
-					Data: &openrtb_ext.ExtRequestPrebidData{
-						EidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
-							{Source: "source1", Bidders: []string{"*"}},
-						},
-					},
-				},
+			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
+				{Source: "source1", Bidders: []string{"*"}},
 			},
 		},
 		{
@@ -3208,14 +3196,8 @@ func TestRemoveUnpermissionedEidsEmptyValidations(t *testing.T) {
 			request: &openrtb2.BidRequest{
 				User: &openrtb2.User{},
 			},
-			requestExt: &openrtb_ext.ExtRequest{
-				Prebid: openrtb_ext.ExtRequestPrebid{
-					Data: &openrtb_ext.ExtRequestPrebidData{
-						EidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
-							{Source: "source1", Bidders: []string{"*"}},
-						},
-					},
-				},
+			eidPermissions: []openrtb_ext.ExtRequestPrebidDataEidPermission{
+				{Source: "source1", Bidders: []string{"*"}},
 			},
 		},
 		{
@@ -3223,27 +3205,25 @@ func TestRemoveUnpermissionedEidsEmptyValidations(t *testing.T) {
 			request: &openrtb2.BidRequest{
 				User: &openrtb2.User{Ext: json.RawMessage(`{"eids":[{"source":"source1","id":"anyID"}]}`)},
 			},
-			requestExt: nil,
-		},
-		{
-			description: "Nil Prebid Data",
-			request: &openrtb2.BidRequest{
-				User: &openrtb2.User{Ext: json.RawMessage(`{"eids":[{"source":"source1","id":"anyID"}]}`)},
-			},
-			requestExt: &openrtb_ext.ExtRequest{
-				Prebid: openrtb_ext.ExtRequestPrebid{
-					Data: nil,
-				},
-			},
 		},
 	}
 
 	for _, test := range testCases {
-		requestExpected := *test.request
+		t.Run(test.description, func(t *testing.T) {
+			requestExpected := *test.request
+			reqWrapper := openrtb_ext.RequestWrapper{BidRequest: test.request}
+
+			re, _ := reqWrapper.GetRequestExt()
+			re.SetPrebid(&openrtb_ext.ExtRequestPrebid{
+				Data: &openrtb_ext.ExtRequestPrebidData{
+					EidPermissions: test.eidPermissions,
+				},
+			})
 
-		resultErr := removeUnpermissionedEids(test.request, "bidderA", test.requestExt)
-		assert.NoError(t, resultErr, test.description+":err")
-		assert.Equal(t, &requestExpected, test.request, test.description+":request")
+			resultErr := removeUnpermissionedEids(&reqWrapper, "bidderA")
+			assert.NoError(t, resultErr, test.description+":err")
+			assert.Equal(t, &requestExpected, reqWrapper.BidRequest, test.description+":request")
+		})
 	}
 }
 
@@ -3278,28 +3258,57 @@ func TestCleanOpenRTBRequestsSChainMultipleBidders(t *testing.T) {
 		},
 	}.Builder
 
+	ortb26enabled := config.BidderInfo{OpenRTB: &config.OpenRTBInfo{Version: "2.6"}}
 	reqSplitter := &requestSplitter{
 		bidderToSyncerKey: map[string]string{},
 		me:                &metrics.MetricsEngineMock{},
 		privacyConfig:     config.Privacy{},
 		gdprPermsBuilder:  gdprPermissionsBuilder,
 		hostSChainNode:    nil,
-		bidderInfo:        config.BidderInfos{},
+		bidderInfo:        config.BidderInfos{"appnexus": ortb26enabled, "axonix": ortb26enabled},
 	}
 	bidderRequests, _, errs := reqSplitter.cleanOpenRTBRequests(context.Background(), auctionReq, extRequest, gdpr.SignalNo, false, map[string]float64{})
 
 	assert.Nil(t, errs)
 	assert.Len(t, bidderRequests, 2, "Bid request count is not 2")
 
-	bidRequestSourceExts := map[openrtb_ext.BidderName]json.RawMessage{}
+	bidRequestSourceSupplyChain := map[openrtb_ext.BidderName]*openrtb2.SupplyChain{}
 	for _, bidderRequest := range bidderRequests {
-		bidRequestSourceExts[bidderRequest.BidderName] = bidderRequest.BidRequest.Source.Ext
+		bidRequestSourceSupplyChain[bidderRequest.BidderName] = bidderRequest.BidRequest.Source.SChain
+	}
+
+	appnexusSchainsSchainExpected := &openrtb2.SupplyChain{
+		Complete: 1,
+		Ver:      "1.0",
+		Ext:      nil,
+		Nodes: []openrtb2.SupplyChainNode{
+			{
+				ASI: "directseller1.com",
+				SID: "00001",
+				RID: "BidRequest1",
+				HP:  openrtb2.Int8Ptr(1),
+				Ext: nil,
+			},
+		},
 	}
 
-	appnexusPrebidSchainsSchain := json.RawMessage(`{"schain":{"complete":1,"nodes":[{"asi":"directseller1.com","sid":"00001","rid":"BidRequest1","hp":1}],"ver":"1.0"}}`)
-	axonixPrebidSchainsSchain := json.RawMessage(`{"schain":{"complete":1,"nodes":[{"asi":"directseller2.com","sid":"00002","rid":"BidRequest2","hp":1}],"ver":"1.0"}}`)
-	assert.Equal(t, appnexusPrebidSchainsSchain, bidRequestSourceExts["appnexus"], "Incorrect appnexus bid request schain in source.ext")
-	assert.Equal(t, axonixPrebidSchainsSchain, bidRequestSourceExts["axonix"], "Incorrect axonix bid request schain in source.ext")
+	axonixSchainsSchainExpected := &openrtb2.SupplyChain{
+		Complete: 1,
+		Ver:      "1.0",
+		Ext:      nil,
+		Nodes: []openrtb2.SupplyChainNode{
+			{
+				ASI: "directseller2.com",
+				SID: "00002",
+				RID: "BidRequest2",
+				HP:  openrtb2.Int8Ptr(1),
+				Ext: nil,
+			},
+		},
+	}
+
+	assert.Equal(t, appnexusSchainsSchainExpected, bidRequestSourceSupplyChain["appnexus"], "Incorrect appnexus bid request schain ")
+	assert.Equal(t, axonixSchainsSchainExpected, bidRequestSourceSupplyChain["axonix"], "Incorrect axonix bid request schain")
 }
 
 func TestCleanOpenRTBRequestsBidAdjustment(t *testing.T) {
@@ -3423,6 +3432,7 @@ func TestApplyFPD(t *testing.T) {
 		inputBidderIsRequestAlias bool
 		inputRequest              openrtb2.BidRequest
 		expectedRequest           openrtb2.BidRequest
+		fpdUserEIDsExisted        bool
 	}{
 		{
 			description:               "fpd-nil",
@@ -3544,17 +3554,45 @@ func TestApplyFPD(t *testing.T) {
 			inputRequest:              openrtb2.BidRequest{},
 			expectedRequest:           openrtb2.BidRequest{Site: &openrtb2.Site{ID: "SiteId"}, App: &openrtb2.App{ID: "AppId"}, User: &openrtb2.User{ID: "UserId", BuyerUID: "FPDBuyerUID"}},
 		},
+		{
+			description: "req.User is defined and had bidder fpd user eids (fpdUserEIDsExisted); bidderFPD.User defined and has EIDs. Expect to see user.EIDs in result request taken from fpd",
+			inputFpd: map[openrtb_ext.BidderName]*firstpartydata.ResolvedFirstPartyData{
+				"bidderNormalized": {Site: &openrtb2.Site{ID: "SiteId"}, App: &openrtb2.App{ID: "AppId"}, User: &openrtb2.User{ID: "UserId", EIDs: []openrtb2.EID{{Source: "source1"}, {Source: "source2"}}}},
+			},
+			inputBidderName:           "bidderFromRequest",
+			inputBidderCoreName:       "bidderNormalized",
+			inputBidderIsRequestAlias: false,
+			inputRequest:              openrtb2.BidRequest{User: &openrtb2.User{ID: "UserId", EIDs: []openrtb2.EID{{Source: "source3"}, {Source: "source4"}}}},
+			expectedRequest:           openrtb2.BidRequest{Site: &openrtb2.Site{ID: "SiteId"}, App: &openrtb2.App{ID: "AppId"}, User: &openrtb2.User{ID: "UserId", EIDs: []openrtb2.EID{{Source: "source1"}, {Source: "source2"}}}},
+			fpdUserEIDsExisted:        true,
+		},
+		{
+			description: "req.User is defined and doesn't have fpr user eids (fpdUserEIDsExisted); bidderFPD.User defined and has EIDs. Expect to see user.EIDs in result request taken from original req",
+			inputFpd: map[openrtb_ext.BidderName]*firstpartydata.ResolvedFirstPartyData{
+				"bidderNormalized": {Site: &openrtb2.Site{ID: "SiteId"}, App: &openrtb2.App{ID: "AppId"}, User: &openrtb2.User{ID: "UserId", EIDs: []openrtb2.EID{{Source: "source1"}, {Source: "source2"}}}},
+			},
+			inputBidderName:           "bidderFromRequest",
+			inputBidderCoreName:       "bidderNormalized",
+			inputBidderIsRequestAlias: false,
+			inputRequest:              openrtb2.BidRequest{User: &openrtb2.User{ID: "UserId", EIDs: []openrtb2.EID{{Source: "source3"}, {Source: "source4"}}}},
+			expectedRequest:           openrtb2.BidRequest{Site: &openrtb2.Site{ID: "SiteId"}, App: &openrtb2.App{ID: "AppId"}, User: &openrtb2.User{ID: "UserId", EIDs: []openrtb2.EID{{Source: "source3"}, {Source: "source4"}}}},
+			fpdUserEIDsExisted:        false,
+		},
 	}
 
 	for _, testCase := range testCases {
-		bidderRequest := BidderRequest{
-			BidderName:     openrtb_ext.BidderName(testCase.inputBidderName),
-			BidderCoreName: openrtb_ext.BidderName(testCase.inputBidderCoreName),
-			IsRequestAlias: testCase.inputBidderIsRequestAlias,
-			BidRequest:     &testCase.inputRequest,
-		}
-		applyFPD(testCase.inputFpd, bidderRequest)
-		assert.Equal(t, testCase.expectedRequest, testCase.inputRequest, fmt.Sprintf("incorrect request after applying fpd, testcase %s", testCase.description))
+		t.Run(testCase.description, func(t *testing.T) {
+			reqWrapper := &openrtb_ext.RequestWrapper{BidRequest: &testCase.inputRequest}
+			applyFPD(
+				testCase.inputFpd,
+				openrtb_ext.BidderName(testCase.inputBidderCoreName),
+				openrtb_ext.BidderName(testCase.inputBidderName),
+				testCase.inputBidderIsRequestAlias,
+				reqWrapper,
+				testCase.fpdUserEIDsExisted,
+			)
+			assert.Equal(t, &testCase.expectedRequest, reqWrapper.BidRequest)
+		})
 	}
 }
 
@@ -3881,21 +3919,27 @@ func (gs GPPMockSection) Encode(bool) []byte {
 func TestGdprFromGPP(t *testing.T) {
 	testCases := []struct {
 		name            string
-		initialRequest  *openrtb2.BidRequest
+		initialRequest  *openrtb_ext.RequestWrapper
 		gpp             gpplib.GppContainer
-		expectedRequest *openrtb2.BidRequest
+		expectedRequest *openrtb_ext.RequestWrapper
 	}{
 		{
-			name:            "Empty", // Empty Request
-			initialRequest:  &openrtb2.BidRequest{},
-			gpp:             gpplib.GppContainer{},
-			expectedRequest: &openrtb2.BidRequest{},
+			name: "Empty", // Empty Request
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{},
+			},
+			gpp: gpplib.GppContainer{},
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{},
+			},
 		},
 		{
 			name: "GDPR_Downgrade", // GDPR from GPP, into empty
-			initialRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{2},
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{2},
+					},
 				},
 			},
 			gpp: gpplib.GppContainer{
@@ -3907,25 +3951,29 @@ func TestGdprFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{2},
-					GDPR:   ptrutil.ToPtr[int8](1),
-				},
-				User: &openrtb2.User{
-					Consent: "GDPRConsent",
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{2},
+						GDPR:   ptrutil.ToPtr[int8](1),
+					},
+					User: &openrtb2.User{
+						Consent: "GDPRConsent",
+					},
 				},
 			},
 		},
 		{
 			name: "GDPR_Downgrade", // GDPR from GPP, into empty legacy, existing objects
-			initialRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID:    []int8{2},
-					USPrivacy: "LegacyUSP",
-				},
-				User: &openrtb2.User{
-					ID: "1234",
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID:    []int8{2},
+						USPrivacy: "LegacyUSP",
+					},
+					User: &openrtb2.User{
+						ID: "1234",
+					},
 				},
 			},
 			gpp: gpplib.GppContainer{
@@ -3937,27 +3985,31 @@ func TestGdprFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID:    []int8{2},
-					GDPR:      ptrutil.ToPtr[int8](1),
-					USPrivacy: "LegacyUSP",
-				},
-				User: &openrtb2.User{
-					ID:      "1234",
-					Consent: "GDPRConsent",
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID:    []int8{2},
+						GDPR:      ptrutil.ToPtr[int8](1),
+						USPrivacy: "LegacyUSP",
+					},
+					User: &openrtb2.User{
+						ID:      "1234",
+						Consent: "GDPRConsent",
+					},
 				},
 			},
 		},
 		{
 			name: "Downgrade_Blocked_By_Existing", // GDPR from GPP blocked by existing GDPR",
-			initialRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{2},
-					GDPR:   ptrutil.ToPtr[int8](1),
-				},
-				User: &openrtb2.User{
-					Consent: "LegacyConsent",
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{2},
+						GDPR:   ptrutil.ToPtr[int8](1),
+					},
+					User: &openrtb2.User{
+						Consent: "LegacyConsent",
+					},
 				},
 			},
 			gpp: gpplib.GppContainer{
@@ -3969,22 +4021,26 @@ func TestGdprFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{2},
-					GDPR:   ptrutil.ToPtr[int8](1),
-				},
-				User: &openrtb2.User{
-					Consent: "LegacyConsent",
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{2},
+						GDPR:   ptrutil.ToPtr[int8](1),
+					},
+					User: &openrtb2.User{
+						Consent: "LegacyConsent",
+					},
 				},
 			},
 		},
 		{
 			name: "Downgrade_Partial", // GDPR from GPP partially blocked by existing GDPR
-			initialRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{2},
-					GDPR:   ptrutil.ToPtr[int8](0),
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{2},
+						GDPR:   ptrutil.ToPtr[int8](0),
+					},
 				},
 			},
 			gpp: gpplib.GppContainer{
@@ -3996,21 +4052,25 @@ func TestGdprFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{2},
-					GDPR:   ptrutil.ToPtr[int8](0),
-				},
-				User: &openrtb2.User{
-					Consent: "GDPRConsent",
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{2},
+						GDPR:   ptrutil.ToPtr[int8](0),
+					},
+					User: &openrtb2.User{
+						Consent: "GDPRConsent",
+					},
 				},
 			},
 		},
 		{
 			name: "No_GDPR", // Downgrade not possible due to missing GDPR
-			initialRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{6},
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{6},
+					},
 				},
 			},
 			gpp: gpplib.GppContainer{
@@ -4022,18 +4082,22 @@ func TestGdprFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{6},
-					GDPR:   ptrutil.ToPtr[int8](0),
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{6},
+						GDPR:   ptrutil.ToPtr[int8](0),
+					},
 				},
 			},
 		},
 		{
 			name: "No_SID", // GDPR from GPP partially blocked by no SID
-			initialRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{6},
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{6},
+					},
 				},
 			},
 			gpp: gpplib.GppContainer{
@@ -4049,19 +4113,23 @@ func TestGdprFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{6},
-					GDPR:   ptrutil.ToPtr[int8](0),
-				},
-				User: &openrtb2.User{
-					Consent: "GDPRConsent",
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{6},
+						GDPR:   ptrutil.ToPtr[int8](0),
+					},
+					User: &openrtb2.User{
+						Consent: "GDPRConsent",
+					},
 				},
 			},
 		},
 		{
-			name:           "GDPR_Nil_SID", // GDPR from GPP, into empty, but with nil SID
-			initialRequest: &openrtb2.BidRequest{},
+			name: "GDPR_Nil_SID", // GDPR from GPP, into empty, but with nil SID
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{},
+			},
 			gpp: gpplib.GppContainer{
 				SectionTypes: []constants.SectionID{2},
 				Sections: []gpplib.Section{
@@ -4071,20 +4139,24 @@ func TestGdprFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				User: &openrtb2.User{
-					Consent: "GDPRConsent",
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					User: &openrtb2.User{
+						Consent: "GDPRConsent",
+					},
 				},
 			},
 		},
 		{
 			name: "Downgrade_Nil_SID_Blocked_By_Existing", // GDPR from GPP blocked by existing GDPR, with nil SID",
-			initialRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GDPR: ptrutil.ToPtr[int8](1),
-				},
-				User: &openrtb2.User{
-					Consent: "LegacyConsent",
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GDPR: ptrutil.ToPtr[int8](1),
+					},
+					User: &openrtb2.User{
+						Consent: "LegacyConsent",
+					},
 				},
 			},
 			gpp: gpplib.GppContainer{
@@ -4096,12 +4168,14 @@ func TestGdprFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GDPR: ptrutil.ToPtr[int8](1),
-				},
-				User: &openrtb2.User{
-					Consent: "LegacyConsent",
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GDPR: ptrutil.ToPtr[int8](1),
+					},
+					User: &openrtb2.User{
+						Consent: "LegacyConsent",
+					},
 				},
 			},
 		},
@@ -4118,21 +4192,27 @@ func TestGdprFromGPP(t *testing.T) {
 func TestPrivacyFromGPP(t *testing.T) {
 	testCases := []struct {
 		name            string
-		initialRequest  *openrtb2.BidRequest
+		initialRequest  *openrtb_ext.RequestWrapper
 		gpp             gpplib.GppContainer
-		expectedRequest *openrtb2.BidRequest
+		expectedRequest *openrtb_ext.RequestWrapper
 	}{
 		{
-			name:            "Empty", // Empty Request
-			initialRequest:  &openrtb2.BidRequest{},
-			gpp:             gpplib.GppContainer{},
-			expectedRequest: &openrtb2.BidRequest{},
+			name: "Empty", // Empty Request
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{},
+			},
+			gpp: gpplib.GppContainer{},
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{},
+			},
 		},
 		{
 			name: "Privacy_Downgrade", // US Privacy from GPP, into empty
-			initialRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{6},
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{6},
+					},
 				},
 			},
 			gpp: gpplib.GppContainer{
@@ -4144,19 +4224,23 @@ func TestPrivacyFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID:    []int8{6},
-					USPrivacy: "USPrivacy",
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID:    []int8{6},
+						USPrivacy: "USPrivacy",
+					},
 				},
 			},
 		},
 		{
 			name: "Downgrade_Blocked_By_Existing", // US Privacy from GPP blocked by existing US Privacy
-			initialRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID:    []int8{6},
-					USPrivacy: "LegacyPrivacy",
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID:    []int8{6},
+						USPrivacy: "LegacyPrivacy",
+					},
 				},
 			},
 			gpp: gpplib.GppContainer{
@@ -4168,18 +4252,22 @@ func TestPrivacyFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID:    []int8{6},
-					USPrivacy: "LegacyPrivacy",
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID:    []int8{6},
+						USPrivacy: "LegacyPrivacy",
+					},
 				},
 			},
 		},
 		{
 			name: "No_USPrivacy", // Downgrade not possible due to missing USPrivacy
-			initialRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{2},
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{2},
+					},
 				},
 			},
 			gpp: gpplib.GppContainer{
@@ -4191,17 +4279,21 @@ func TestPrivacyFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{2},
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{2},
+					},
 				},
 			},
 		},
 		{
 			name: "No_SID", // US Privacy from GPP partially blocked by no SID
-			initialRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{2},
+			initialRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{2},
+					},
 				},
 			},
 			gpp: gpplib.GppContainer{
@@ -4217,9 +4309,11 @@ func TestPrivacyFromGPP(t *testing.T) {
 					},
 				},
 			},
-			expectedRequest: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{
-					GPPSID: []int8{2},
+			expectedRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Regs: &openrtb2.Regs{
+						GPPSID: []int8{2},
+					},
 				},
 			},
 		},
@@ -4709,6 +4803,7 @@ func TestCleanOpenRTBRequestsActivities(t *testing.T) {
 		privacyConfig     config.AccountPrivacy
 		componentName     string
 		allow             bool
+		ortbVersion       string
 		expectedReqNumber int
 		expectedUser      openrtb2.User
 		expectUserScrub   bool
@@ -4720,6 +4815,7 @@ func TestCleanOpenRTBRequestsActivities(t *testing.T) {
 			name:              "fetch_bids_request_with_one_bidder_allowed",
 			req:               newBidRequest(t),
 			privacyConfig:     getFetchBidsActivityConfig("appnexus", true),
+			ortbVersion:       "2.6",
 			expectedReqNumber: 1,
 			expectedUser:      expectedUserDefault,
 			expectedDevice:    expectedDeviceDefault,
@@ -4738,6 +4834,7 @@ func TestCleanOpenRTBRequestsActivities(t *testing.T) {
 			name:              "transmit_ufpd_allowed",
 			req:               newBidRequest(t),
 			privacyConfig:     getTransmitUFPDActivityConfig("appnexus", true),
+			ortbVersion:       "2.6",
 			expectedReqNumber: 1,
 			expectedUser:      expectedUserDefault,
 			expectedDevice:    expectedDeviceDefault,
@@ -4779,6 +4876,7 @@ func TestCleanOpenRTBRequestsActivities(t *testing.T) {
 			name:              "transmit_precise_geo_allowed",
 			req:               newBidRequest(t),
 			privacyConfig:     getTransmitPreciseGeoActivityConfig("appnexus", true),
+			ortbVersion:       "2.6",
 			expectedReqNumber: 1,
 			expectedUser:      expectedUserDefault,
 			expectedDevice:    expectedDeviceDefault,
@@ -4790,6 +4888,7 @@ func TestCleanOpenRTBRequestsActivities(t *testing.T) {
 			name:              "transmit_precise_geo_deny",
 			req:               newBidRequest(t),
 			privacyConfig:     getTransmitPreciseGeoActivityConfig("appnexus", false),
+			ortbVersion:       "2.6",
 			expectedReqNumber: 1,
 			expectedUser: openrtb2.User{
 				ID:       "our-id",
@@ -4822,6 +4921,7 @@ func TestCleanOpenRTBRequestsActivities(t *testing.T) {
 			name:              "transmit_tid_allowed",
 			req:               newBidRequest(t),
 			privacyConfig:     getTransmitTIDActivityConfig("appnexus", true),
+			ortbVersion:       "2.6",
 			expectedReqNumber: 1,
 			expectedUser:      expectedUserDefault,
 			expectedDevice:    expectedDeviceDefault,
@@ -4832,6 +4932,7 @@ func TestCleanOpenRTBRequestsActivities(t *testing.T) {
 			name:              "transmit_tid_deny",
 			req:               newBidRequest(t),
 			privacyConfig:     getTransmitTIDActivityConfig("appnexus", false),
+			ortbVersion:       "2.6",
 			expectedReqNumber: 1,
 			expectedUser:      expectedUserDefault,
 			expectedDevice:    expectedDeviceDefault,
@@ -4868,7 +4969,7 @@ func TestCleanOpenRTBRequestsActivities(t *testing.T) {
 				bidderToSyncerKey: bidderToSyncerKey,
 				me:                &metricsMock,
 				hostSChainNode:    nil,
-				bidderInfo:        config.BidderInfos{},
+				bidderInfo:        config.BidderInfos{"appnexus": config.BidderInfo{OpenRTB: &config.OpenRTBInfo{Version: test.ortbVersion}}},
 			}
 
 			bidderRequests, _, errs := reqSplitter.cleanOpenRTBRequests(context.Background(), auctionReq, nil, gdpr.SignalNo, false, map[string]float64{})
@@ -4942,119 +5043,96 @@ func getTransmitTIDActivityConfig(componentName string, allow bool) config.Accou
 
 func TestApplyBidAdjustmentToFloor(t *testing.T) {
 	type args struct {
-		allBidderRequests    []BidderRequest
+		bidRequestWrapper    *openrtb_ext.RequestWrapper
+		bidderName           string
 		bidAdjustmentFactors map[string]float64
 	}
 	tests := []struct {
-		name                      string
-		args                      args
-		expectedAllBidderRequests []BidderRequest
+		name               string
+		args               args
+		expectedBidRequest *openrtb2.BidRequest
 	}{
 		{
-			name: " bidAdjustmentFactor is empty",
+			name: "bid_adjustment_factor_is_nil",
 			args: args{
-				allBidderRequests: []BidderRequest{
-					{
-						BidRequest: &openrtb2.BidRequest{
-							Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
-						},
-						BidderName: openrtb_ext.BidderName("appnexus"),
-					},
-				},
-				bidAdjustmentFactors: map[string]float64{},
-			},
-			expectedAllBidderRequests: []BidderRequest{
-				{
+				bidRequestWrapper: &openrtb_ext.RequestWrapper{
 					BidRequest: &openrtb2.BidRequest{
 						Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
 					},
-					BidderName: openrtb_ext.BidderName("appnexus"),
 				},
+				bidderName:           "appnexus",
+				bidAdjustmentFactors: nil,
+			},
+			expectedBidRequest: &openrtb2.BidRequest{
+				Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
 			},
 		},
 		{
-			name: "bidAdjustmentFactor not present for request bidder",
+			name: "bid_adjustment_factor_is_empty",
 			args: args{
-				allBidderRequests: []BidderRequest{
-					{
-						BidRequest: &openrtb2.BidRequest{
-							Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
-						},
-						BidderName: openrtb_ext.BidderName("appnexus"),
+				bidRequestWrapper: &openrtb_ext.RequestWrapper{
+					BidRequest: &openrtb2.BidRequest{
+						Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
 					},
 				},
-				bidAdjustmentFactors: map[string]float64{"pubmatic": 1.0},
+				bidderName:           "appnexus",
+				bidAdjustmentFactors: map[string]float64{},
 			},
-			expectedAllBidderRequests: []BidderRequest{
-				{
+			expectedBidRequest: &openrtb2.BidRequest{
+				Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
+			},
+		},
+		{
+			name: "bid_adjustment_factor_not_present",
+			args: args{
+				bidRequestWrapper: &openrtb_ext.RequestWrapper{
 					BidRequest: &openrtb2.BidRequest{
 						Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
 					},
-					BidderName: openrtb_ext.BidderName("appnexus"),
 				},
+				bidderName:           "appnexus",
+				bidAdjustmentFactors: map[string]float64{"pubmatic": 1.0},
+			},
+			expectedBidRequest: &openrtb2.BidRequest{
+				Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
 			},
 		},
 		{
-			name: "bidAdjustmentFactor present for request bidder",
+			name: "bid_adjustment_factor_present",
 			args: args{
-				allBidderRequests: []BidderRequest{
-					{
-						BidRequest: &openrtb2.BidRequest{
-							Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
-						},
-						BidderName: openrtb_ext.BidderName("appnexus"),
+				bidRequestWrapper: &openrtb_ext.RequestWrapper{
+					BidRequest: &openrtb2.BidRequest{
+						Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
 					},
 				},
+				bidderName:           "appnexus",
 				bidAdjustmentFactors: map[string]float64{"pubmatic": 1.0, "appnexus": 0.75},
 			},
-			expectedAllBidderRequests: []BidderRequest{
-				{
-					BidRequest: &openrtb2.BidRequest{
-						Imp: []openrtb2.Imp{{BidFloor: 133.33333333333334}, {BidFloor: 200}},
-					},
-					BidderName: openrtb_ext.BidderName("appnexus"),
-				},
+			expectedBidRequest: &openrtb2.BidRequest{
+				Imp: []openrtb2.Imp{{BidFloor: 133.33333333333334}, {BidFloor: 200}},
 			},
 		},
 		{
-			name: "bidAdjustmentFactor present only for appnexus request bidder",
+			name: "bid_adjustment_factor_present_and_zero",
 			args: args{
-				allBidderRequests: []BidderRequest{
-					{
-						BidRequest: &openrtb2.BidRequest{
-							Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
-						},
-						BidderName: openrtb_ext.BidderName("appnexus"),
-					},
-					{
-						BidRequest: &openrtb2.BidRequest{
-							Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
-						},
-						BidderName: openrtb_ext.BidderName("pubmatic"),
-					},
-				},
-				bidAdjustmentFactors: map[string]float64{"appnexus": 0.75},
-			},
-			expectedAllBidderRequests: []BidderRequest{
-				{
-					BidRequest: &openrtb2.BidRequest{
-						Imp: []openrtb2.Imp{{BidFloor: 133.33333333333334}, {BidFloor: 200}},
-					},
-					BidderName: openrtb_ext.BidderName("appnexus"),
-				},
-				{
+				bidRequestWrapper: &openrtb_ext.RequestWrapper{
 					BidRequest: &openrtb2.BidRequest{
 						Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
 					},
-					BidderName: openrtb_ext.BidderName("pubmatic"),
 				},
+				bidderName:           "appnexus",
+				bidAdjustmentFactors: map[string]float64{"pubmatic": 1.0, "appnexus": 0.0},
+			},
+			expectedBidRequest: &openrtb2.BidRequest{
+				Imp: []openrtb2.Imp{{BidFloor: 100}, {BidFloor: 150}},
 			},
 		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			applyBidAdjustmentToFloor(tt.args.allBidderRequests, tt.args.bidAdjustmentFactors)
-			assert.Equal(t, tt.expectedAllBidderRequests, tt.args.allBidderRequests, tt.name)
+			applyBidAdjustmentToFloor(tt.args.bidRequestWrapper, tt.args.bidderName, tt.args.bidAdjustmentFactors)
+			assert.NoError(t, tt.args.bidRequestWrapper.RebuildRequest())
+			assert.Equal(t, tt.expectedBidRequest, tt.args.bidRequestWrapper.BidRequest, tt.name)
 		})
 	}
 }
@@ -5277,24 +5355,85 @@ func TestCopyExtAlternateBidderCodes(t *testing.T) {
 	}
 }
 
-func TestBuildBidResponseRequestBidderName(t *testing.T) {
-	bidderImpResponses := stored_responses.BidderImpsWithBidResponses{
-		openrtb_ext.BidderName("appnexus"): {"impId1": json.RawMessage(`{}`), "impId2": json.RawMessage(`{}`)},
-		openrtb_ext.BidderName("appneXUS"): {"impId3": json.RawMessage(`{}`), "impId4": json.RawMessage(`{}`)},
-	}
+func TestRemoveImpsWithStoredResponses(t *testing.T) {
+	bidRespId1 := json.RawMessage(`{"id": "resp_id1"}`)
+	testCases := []struct {
+		description        string
+		req                *openrtb_ext.RequestWrapper
+		storedBidResponses map[string]json.RawMessage
+		expectedImps       []openrtb2.Imp
+	}{
+		{
+			description: "request with imps and stored bid response for this imp",
+			req: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Imp: []openrtb2.Imp{
+						{ID: "imp-id1"},
+					},
+				},
+			},
+			storedBidResponses: map[string]json.RawMessage{
+				"imp-id1": bidRespId1,
+			},
+			expectedImps: nil,
+		},
+		{
+			description: "request with imps and stored bid response for one of these imp",
+			req: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Imp: []openrtb2.Imp{
+						{ID: "imp-id1"},
+						{ID: "imp-id2"},
+					},
+				},
+			},
+			storedBidResponses: map[string]json.RawMessage{
+				"imp-id1": bidRespId1,
+			},
+			expectedImps: []openrtb2.Imp{
+				{
+					ID: "imp-id2",
+				},
+			},
+		},
+		{
+			description: "request with imps and stored bid response for both of these imp",
+			req: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Imp: []openrtb2.Imp{
+						{ID: "imp-id1"},
+						{ID: "imp-id2"},
+					},
+				},
+			},
+			storedBidResponses: map[string]json.RawMessage{
+				"imp-id1": bidRespId1,
+				"imp-id2": bidRespId1,
+			},
+			expectedImps: nil,
+		},
+		{
+			description: "request with imps and no stored bid responses",
+			req: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Imp: []openrtb2.Imp{
+						{ID: "imp-id1"},
+						{ID: "imp-id2"},
+					},
+				},
+			},
+			storedBidResponses: nil,
 
-	bidderImpReplaceImpID := stored_responses.BidderImpReplaceImpID{
-		"appnexus": {"impId1": true, "impId2": false},
-		"appneXUS": {"impId3": true, "impId4": false},
+			expectedImps: []openrtb2.Imp{
+				{ID: "imp-id1"},
+				{ID: "imp-id2"},
+			},
+		},
+	}
+	for _, testCase := range testCases {
+		request := testCase.req
+		removeImpsWithStoredResponses(request, testCase.storedBidResponses)
+		assert.NoError(t, request.RebuildRequest())
+		assert.Equal(t, testCase.expectedImps, request.Imp, "incorrect Impressions for testCase %s", testCase.description)
 	}
-	result := buildBidResponseRequest(nil, bidderImpResponses, nil, bidderImpReplaceImpID)
-
-	resultAppnexus := result["appnexus"]
-	assert.Equal(t, resultAppnexus.BidderName, openrtb_ext.BidderName("appnexus"))
-	assert.Equal(t, resultAppnexus.ImpReplaceImpId, map[string]bool{"impId1": true, "impId2": false})
-
-	resultAppneXUS := result["appneXUS"]
-	assert.Equal(t, resultAppneXUS.BidderName, openrtb_ext.BidderName("appneXUS"))
-	assert.Equal(t, resultAppneXUS.ImpReplaceImpId, map[string]bool{"impId3": true, "impId4": false})
-
 }
diff --git a/experiment/adscert/inprocesssigner.go b/experiment/adscert/inprocesssigner.go
index eabd35ebb95..ee5f4905d2a 100644
--- a/experiment/adscert/inprocesssigner.go
+++ b/experiment/adscert/inprocesssigner.go
@@ -8,7 +8,7 @@ import (
 	"github.com/IABTechLab/adscert/pkg/adscert/discovery"
 	"github.com/IABTechLab/adscert/pkg/adscert/signatory"
 	"github.com/benbjohnson/clock"
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 )
 
 // inProcessSigner holds the signatory to add adsCert header to requests using in process go library
diff --git a/experiment/adscert/remotesigner.go b/experiment/adscert/remotesigner.go
index d23dad201d3..c441bbebb63 100644
--- a/experiment/adscert/remotesigner.go
+++ b/experiment/adscert/remotesigner.go
@@ -6,7 +6,7 @@ import (
 
 	"github.com/IABTechLab/adscert/pkg/adscert/api"
 	"github.com/IABTechLab/adscert/pkg/adscert/signatory"
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials/insecure"
 )
diff --git a/experiment/adscert/signer.go b/experiment/adscert/signer.go
index f060f957149..f7ea9a4254d 100644
--- a/experiment/adscert/signer.go
+++ b/experiment/adscert/signer.go
@@ -6,7 +6,7 @@ import (
 	"github.com/IABTechLab/adscert/pkg/adscert/api"
 	"github.com/IABTechLab/adscert/pkg/adscert/logger"
 	"github.com/IABTechLab/adscert/pkg/adscert/signatory"
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 )
 
 const SignHeader = "X-Ads-Cert-Auth"
diff --git a/experiment/adscert/signer_test.go b/experiment/adscert/signer_test.go
index fceb2e5c79c..3e08d0f6ba0 100644
--- a/experiment/adscert/signer_test.go
+++ b/experiment/adscert/signer_test.go
@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/IABTechLab/adscert/pkg/adscert/api"
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/firstpartydata/first_party_data.go b/firstpartydata/first_party_data.go
index 019730f23ef..44a3241a53c 100644
--- a/firstpartydata/first_party_data.go
+++ b/firstpartydata/first_party_data.go
@@ -9,10 +9,10 @@ import (
 	"github.com/prebid/openrtb/v20/openrtb2"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 var (
diff --git a/firstpartydata/first_party_data_test.go b/firstpartydata/first_party_data_test.go
index 44c9405f1bc..3a11e44478b 100644
--- a/firstpartydata/first_party_data_test.go
+++ b/firstpartydata/first_party_data_test.go
@@ -7,9 +7,9 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
diff --git a/floors/enforce.go b/floors/enforce.go
index d499c7d3806..f72d2bb72c5 100644
--- a/floors/enforce.go
+++ b/floors/enforce.go
@@ -6,10 +6,10 @@ import (
 	"math/rand"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // Enforce does floors enforcement for bids from all bidders based on floors provided in request, account level floors config
diff --git a/floors/enforce_test.go b/floors/enforce_test.go
index 9b3fd36a717..3da86e2d74a 100644
--- a/floors/enforce_test.go
+++ b/floors/enforce_test.go
@@ -7,11 +7,11 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/floors/fetcher.go b/floors/fetcher.go
index 5ed96b9ec36..071ee200353 100644
--- a/floors/fetcher.go
+++ b/floors/fetcher.go
@@ -15,10 +15,10 @@ import (
 	validator "github.com/asaskevich/govalidator"
 	"github.com/coocood/freecache"
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/timeutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/timeutil"
 )
 
 var refetchCheckInterval = 300
diff --git a/floors/fetcher_test.go b/floors/fetcher_test.go
index 499c9312302..91ce496f32f 100644
--- a/floors/fetcher_test.go
+++ b/floors/fetcher_test.go
@@ -12,12 +12,12 @@ import (
 
 	"github.com/alitto/pond"
 	"github.com/coocood/freecache"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	metricsConf "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
-	"github.com/prebid/prebid-server/v2/util/timeutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	metricsConf "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/timeutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/floors/floors.go b/floors/floors.go
index af7422e4c52..9aa70aedbde 100644
--- a/floors/floors.go
+++ b/floors/floors.go
@@ -6,10 +6,10 @@ import (
 	"math/rand"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 type Price struct {
diff --git a/floors/floors_test.go b/floors/floors_test.go
index b9618bb86f2..438a49f9281 100644
--- a/floors/floors_test.go
+++ b/floors/floors_test.go
@@ -7,11 +7,11 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/floors/rule.go b/floors/rule.go
index ec696dd0f76..65ddf31e727 100644
--- a/floors/rule.go
+++ b/floors/rule.go
@@ -9,9 +9,9 @@ import (
 
 	"github.com/golang/glog"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 const (
diff --git a/floors/rule_test.go b/floors/rule_test.go
index b01bab79384..d356a768233 100644
--- a/floors/rule_test.go
+++ b/floors/rule_test.go
@@ -6,9 +6,9 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/floors/validate.go b/floors/validate.go
index 245bf993e58..140df7def39 100644
--- a/floors/validate.go
+++ b/floors/validate.go
@@ -4,8 +4,8 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 var validSchemaDimensions = map[string]struct{}{
diff --git a/floors/validate_test.go b/floors/validate_test.go
index ccb75c7a659..36c1c73e0b5 100644
--- a/floors/validate_test.go
+++ b/floors/validate_test.go
@@ -5,8 +5,8 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/gdpr/aggregated_config.go b/gdpr/aggregated_config.go
index 9ac03143a1c..3df5fdc7ff8 100644
--- a/gdpr/aggregated_config.go
+++ b/gdpr/aggregated_config.go
@@ -3,8 +3,8 @@ package gdpr
 import (
 	"github.com/prebid/go-gdpr/consentconstants"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // TCF2ConfigReader is an interface to access TCF2 configurations
diff --git a/gdpr/aggregated_config_test.go b/gdpr/aggregated_config_test.go
index a24e9eff1b1..f577772cb6e 100644
--- a/gdpr/aggregated_config_test.go
+++ b/gdpr/aggregated_config_test.go
@@ -5,8 +5,8 @@ import (
 
 	"github.com/prebid/go-gdpr/consentconstants"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
 	"github.com/stretchr/testify/assert"
 )
diff --git a/gdpr/basic_enforcement_test.go b/gdpr/basic_enforcement_test.go
index eb22f59bc0b..7bb0076940b 100644
--- a/gdpr/basic_enforcement_test.go
+++ b/gdpr/basic_enforcement_test.go
@@ -6,7 +6,7 @@ import (
 	"github.com/prebid/go-gdpr/consentconstants"
 	"github.com/prebid/go-gdpr/vendorconsent"
 	tcf2 "github.com/prebid/go-gdpr/vendorconsent/tcf2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
 	"github.com/stretchr/testify/assert"
 )
diff --git a/gdpr/full_enforcement_test.go b/gdpr/full_enforcement_test.go
index 32ba2e50289..eed86bf2383 100644
--- a/gdpr/full_enforcement_test.go
+++ b/gdpr/full_enforcement_test.go
@@ -8,8 +8,8 @@ import (
 	tcf2 "github.com/prebid/go-gdpr/vendorconsent/tcf2"
 	"github.com/prebid/go-gdpr/vendorlist"
 	"github.com/prebid/go-gdpr/vendorlist2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/stretchr/testify/assert"
 )
diff --git a/gdpr/gdpr.go b/gdpr/gdpr.go
index 4f7df2f3ab7..20c5e9306be 100644
--- a/gdpr/gdpr.go
+++ b/gdpr/gdpr.go
@@ -3,8 +3,8 @@ package gdpr
 import (
 	"context"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 type Permissions interface {
diff --git a/gdpr/gdpr_test.go b/gdpr/gdpr_test.go
index 3729eda3d5b..db81d1396a8 100644
--- a/gdpr/gdpr_test.go
+++ b/gdpr/gdpr_test.go
@@ -6,8 +6,8 @@ import (
 
 	"github.com/prebid/go-gdpr/consentconstants"
 	"github.com/prebid/go-gdpr/vendorlist"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
 	"github.com/stretchr/testify/assert"
 )
diff --git a/gdpr/impl.go b/gdpr/impl.go
index 27c10cf8fd5..47fd4521c1c 100644
--- a/gdpr/impl.go
+++ b/gdpr/impl.go
@@ -6,7 +6,7 @@ import (
 	"github.com/prebid/go-gdpr/api"
 	"github.com/prebid/go-gdpr/consentconstants"
 	tcf2 "github.com/prebid/go-gdpr/vendorconsent/tcf2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const noBidder openrtb_ext.BidderName = ""
diff --git a/gdpr/impl_test.go b/gdpr/impl_test.go
index 2a5826ad4cb..79d43d58232 100644
--- a/gdpr/impl_test.go
+++ b/gdpr/impl_test.go
@@ -9,8 +9,8 @@ import (
 	"github.com/prebid/go-gdpr/consentconstants"
 	"github.com/prebid/go-gdpr/vendorlist"
 	"github.com/prebid/go-gdpr/vendorlist2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
 	"github.com/stretchr/testify/assert"
 )
diff --git a/gdpr/purpose_config.go b/gdpr/purpose_config.go
index ff3a92300ff..020d0aaa06e 100644
--- a/gdpr/purpose_config.go
+++ b/gdpr/purpose_config.go
@@ -2,7 +2,7 @@ package gdpr
 
 import (
 	"github.com/prebid/go-gdpr/consentconstants"
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 )
 
 // purposeConfig represents all of the config info selected from the host and account configs for
diff --git a/gdpr/purpose_config_test.go b/gdpr/purpose_config_test.go
index c2bd6f56d8f..61b7b9b2d68 100644
--- a/gdpr/purpose_config_test.go
+++ b/gdpr/purpose_config_test.go
@@ -3,7 +3,7 @@ package gdpr
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
 	"github.com/stretchr/testify/assert"
 )
diff --git a/gdpr/purpose_enforcer.go b/gdpr/purpose_enforcer.go
index ceef0e5f561..5cc5d8e83d5 100644
--- a/gdpr/purpose_enforcer.go
+++ b/gdpr/purpose_enforcer.go
@@ -4,8 +4,8 @@ import (
 	"github.com/prebid/go-gdpr/api"
 	"github.com/prebid/go-gdpr/consentconstants"
 	tcf2 "github.com/prebid/go-gdpr/vendorconsent/tcf2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // PurposeEnforcer represents the enforcement strategy for determining if legal basis is achieved for a purpose
diff --git a/gdpr/purpose_enforcer_test.go b/gdpr/purpose_enforcer_test.go
index 1f931898ff1..756bb07d716 100644
--- a/gdpr/purpose_enforcer_test.go
+++ b/gdpr/purpose_enforcer_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/prebid/go-gdpr/consentconstants"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
 	"github.com/stretchr/testify/assert"
 )
diff --git a/gdpr/signal.go b/gdpr/signal.go
index 3d2e4de1251..478985b64f5 100644
--- a/gdpr/signal.go
+++ b/gdpr/signal.go
@@ -3,7 +3,7 @@ package gdpr
 import (
 	"strconv"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 )
 
 type Signal int
diff --git a/gdpr/vendorlist-fetching.go b/gdpr/vendorlist-fetching.go
index 64424f5ee69..dc035483479 100644
--- a/gdpr/vendorlist-fetching.go
+++ b/gdpr/vendorlist-fetching.go
@@ -14,7 +14,7 @@ import (
 	"github.com/prebid/go-gdpr/api"
 	"github.com/prebid/go-gdpr/vendorlist"
 	"github.com/prebid/go-gdpr/vendorlist2"
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 	"golang.org/x/net/context/ctxhttp"
 )
 
diff --git a/gdpr/vendorlist-fetching_test.go b/gdpr/vendorlist-fetching_test.go
index 98dc4ba5aa3..4e9e31dd936 100644
--- a/gdpr/vendorlist-fetching_test.go
+++ b/gdpr/vendorlist-fetching_test.go
@@ -11,8 +11,8 @@ import (
 
 	"github.com/prebid/go-gdpr/api"
 	"github.com/prebid/go-gdpr/consentconstants"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 func TestFetcherDynamicLoadListExists(t *testing.T) {
diff --git a/go.mod b/go.mod
index b27d55e803d..e844fe5bf25 100644
--- a/go.mod
+++ b/go.mod
@@ -1,7 +1,9 @@
-module github.com/prebid/prebid-server/v2
+module github.com/prebid/prebid-server/v3
 
 go 1.21
 
+retract v3.0.0 // Forgot to update major version in import path and module name
+
 require (
 	github.com/DATA-DOG/go-sqlmock v1.5.0
 	github.com/IABTechLab/adscert v0.34.0
diff --git a/hooks/empty_plan.go b/hooks/empty_plan.go
index 514d3824898..72c1a9276d5 100644
--- a/hooks/empty_plan.go
+++ b/hooks/empty_plan.go
@@ -1,8 +1,8 @@
 package hooks
 
 import (
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
 )
 
 // EmptyPlanBuilder implements the ExecutionPlanBuilder interface
diff --git a/hooks/hookanalytics/analytics_test.go b/hooks/hookanalytics/analytics_test.go
index 27584cf0d39..a1186e1b862 100644
--- a/hooks/hookanalytics/analytics_test.go
+++ b/hooks/hookanalytics/analytics_test.go
@@ -3,7 +3,7 @@ package hookanalytics
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/hooks/hookexecution/context.go b/hooks/hookexecution/context.go
index f7b6a9d32e1..98a38714618 100644
--- a/hooks/hookexecution/context.go
+++ b/hooks/hookexecution/context.go
@@ -4,9 +4,9 @@ import (
 	"sync"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/privacy"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/privacy"
 )
 
 // executionContext holds information passed to module's hook during hook execution.
diff --git a/hooks/hookexecution/enricher.go b/hooks/hookexecution/enricher.go
index 3617a528660..7ca9f65f176 100644
--- a/hooks/hookexecution/enricher.go
+++ b/hooks/hookexecution/enricher.go
@@ -5,8 +5,8 @@ import (
 
 	"github.com/buger/jsonparser"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 )
 
diff --git a/hooks/hookexecution/enricher_test.go b/hooks/hookexecution/enricher_test.go
index 4f962dea279..beb07444d10 100644
--- a/hooks/hookexecution/enricher_test.go
+++ b/hooks/hookexecution/enricher_test.go
@@ -7,10 +7,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks/hookanalytics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks/hookanalytics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
diff --git a/hooks/hookexecution/errors.go b/hooks/hookexecution/errors.go
index 1d016e26019..0e61ebc983b 100644
--- a/hooks/hookexecution/errors.go
+++ b/hooks/hookexecution/errors.go
@@ -3,7 +3,7 @@ package hookexecution
 import (
 	"fmt"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 )
 
 // TimeoutError indicates exceeding of the max execution time allotted for hook.
diff --git a/hooks/hookexecution/execution.go b/hooks/hookexecution/execution.go
index 46b54e46b3c..caaba59c3bb 100644
--- a/hooks/hookexecution/execution.go
+++ b/hooks/hookexecution/execution.go
@@ -7,14 +7,14 @@ import (
 	"sync"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/util/iputil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/util/iputil"
 )
 
 type hookResponse[T any] struct {
diff --git a/hooks/hookexecution/execution_test.go b/hooks/hookexecution/execution_test.go
index 33f652faa2f..1090db578d4 100644
--- a/hooks/hookexecution/execution_test.go
+++ b/hooks/hookexecution/execution_test.go
@@ -4,10 +4,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/privacy"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/privacy"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/hooks/hookexecution/executor.go b/hooks/hookexecution/executor.go
index 835e9de32c1..70725de79c5 100644
--- a/hooks/hookexecution/executor.go
+++ b/hooks/hookexecution/executor.go
@@ -6,14 +6,14 @@ import (
 	"sync"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/privacy"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/privacy"
 )
 
 const (
diff --git a/hooks/hookexecution/executor_test.go b/hooks/hookexecution/executor_test.go
index 2f7cb077494..5e19f24a96f 100644
--- a/hooks/hookexecution/executor_test.go
+++ b/hooks/hookexecution/executor_test.go
@@ -9,17 +9,17 @@ import (
 	"time"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/hooks/hookanalytics"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/metrics"
-	metricsConfig "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/privacy"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/hooks/hookanalytics"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/metrics"
+	metricsConfig "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/privacy"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 )
diff --git a/hooks/hookexecution/mocks_test.go b/hooks/hookexecution/mocks_test.go
index 8c34a518bab..57205707b98 100644
--- a/hooks/hookexecution/mocks_test.go
+++ b/hooks/hookexecution/mocks_test.go
@@ -5,9 +5,9 @@ import (
 	"errors"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 type mockUpdateHeaderEntrypointHook struct{}
diff --git a/hooks/hookexecution/outcome.go b/hooks/hookexecution/outcome.go
index ff8bf1e973e..d17d3cd4672 100644
--- a/hooks/hookexecution/outcome.go
+++ b/hooks/hookexecution/outcome.go
@@ -3,7 +3,7 @@ package hookexecution
 import (
 	"time"
 
-	"github.com/prebid/prebid-server/v2/hooks/hookanalytics"
+	"github.com/prebid/prebid-server/v3/hooks/hookanalytics"
 )
 
 // Status indicates the result of hook execution.
diff --git a/hooks/hookexecution/test_utils.go b/hooks/hookexecution/test_utils.go
index 32ae9fd7a22..b26d4aae4bd 100644
--- a/hooks/hookexecution/test_utils.go
+++ b/hooks/hookexecution/test_utils.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/hooks/hookstage/allprocessedbidresponses.go b/hooks/hookstage/allprocessedbidresponses.go
index 233a68b6efd..6bfe0d80821 100644
--- a/hooks/hookstage/allprocessedbidresponses.go
+++ b/hooks/hookstage/allprocessedbidresponses.go
@@ -3,8 +3,8 @@ package hookstage
 import (
 	"context"
 
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // AllProcessedBidResponses hooks are invoked over a list of all
diff --git a/hooks/hookstage/bidderrequest.go b/hooks/hookstage/bidderrequest.go
index 05f3574c8bf..8c27f07242a 100644
--- a/hooks/hookstage/bidderrequest.go
+++ b/hooks/hookstage/bidderrequest.go
@@ -2,7 +2,8 @@ package hookstage
 
 import (
 	"context"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // BidderRequest hooks are invoked for each bidder participating in auction.
diff --git a/hooks/hookstage/bidderrequest_mutations.go b/hooks/hookstage/bidderrequest_mutations.go
index 6f4d5a5bacb..3ab571ff8e7 100644
--- a/hooks/hookstage/bidderrequest_mutations.go
+++ b/hooks/hookstage/bidderrequest_mutations.go
@@ -3,7 +3,7 @@ package hookstage
 import (
 	"errors"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
 	"github.com/prebid/openrtb/v20/adcom1"
 )
diff --git a/hooks/hookstage/invocation.go b/hooks/hookstage/invocation.go
index 73b210957e2..6408e8667df 100644
--- a/hooks/hookstage/invocation.go
+++ b/hooks/hookstage/invocation.go
@@ -3,7 +3,7 @@ package hookstage
 import (
 	"encoding/json"
 
-	"github.com/prebid/prebid-server/v2/hooks/hookanalytics"
+	"github.com/prebid/prebid-server/v3/hooks/hookanalytics"
 )
 
 // HookResult represents the result of execution the concrete hook instance.
diff --git a/hooks/hookstage/processedauctionrequest.go b/hooks/hookstage/processedauctionrequest.go
index 02638dccc20..06742138826 100644
--- a/hooks/hookstage/processedauctionrequest.go
+++ b/hooks/hookstage/processedauctionrequest.go
@@ -2,7 +2,8 @@ package hookstage
 
 import (
 	"context"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // ProcessedAuctionRequest hooks are invoked after the request is parsed
diff --git a/hooks/hookstage/rawbidderresponse.go b/hooks/hookstage/rawbidderresponse.go
index 7d08a7d2e02..7f518211569 100644
--- a/hooks/hookstage/rawbidderresponse.go
+++ b/hooks/hookstage/rawbidderresponse.go
@@ -3,7 +3,7 @@ package hookstage
 import (
 	"context"
 
-	"github.com/prebid/prebid-server/v2/adapters"
+	"github.com/prebid/prebid-server/v3/adapters"
 )
 
 // RawBidderResponse hooks are invoked for each bidder participating in auction.
diff --git a/hooks/hookstage/rawbidderresponse_mutations.go b/hooks/hookstage/rawbidderresponse_mutations.go
index efab874fa15..931d76f6a2e 100644
--- a/hooks/hookstage/rawbidderresponse_mutations.go
+++ b/hooks/hookstage/rawbidderresponse_mutations.go
@@ -3,7 +3,7 @@ package hookstage
 import (
 	"errors"
 
-	"github.com/prebid/prebid-server/v2/adapters"
+	"github.com/prebid/prebid-server/v3/adapters"
 )
 
 func (c *ChangeSet[T]) RawBidderResponse() ChangeSetRawBidderResponse[T] {
diff --git a/hooks/plan.go b/hooks/plan.go
index a3a0e9af661..62655f6cf5c 100644
--- a/hooks/plan.go
+++ b/hooks/plan.go
@@ -4,8 +4,8 @@ import (
 	"time"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
 )
 
 type Stage string
diff --git a/hooks/plan_test.go b/hooks/plan_test.go
index 064403cb8cf..fd2d0554e5c 100644
--- a/hooks/plan_test.go
+++ b/hooks/plan_test.go
@@ -5,9 +5,9 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/hooks/repo.go b/hooks/repo.go
index 3d8db581bda..cb77c7bbea6 100644
--- a/hooks/repo.go
+++ b/hooks/repo.go
@@ -3,7 +3,7 @@ package hooks
 import (
 	"fmt"
 
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
 )
 
 // HookRepository is the interface that exposes methods
diff --git a/hooks/repo_test.go b/hooks/repo_test.go
index 1ffbf0bfbed..d6d37133511 100644
--- a/hooks/repo_test.go
+++ b/hooks/repo_test.go
@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
diff --git a/injector/injector.go b/injector/injector.go
index 8f902273257..9de2c1b726b 100644
--- a/injector/injector.go
+++ b/injector/injector.go
@@ -6,8 +6,8 @@ import (
 	"io"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/metrics"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/metrics"
 )
 
 const (
diff --git a/injector/injector_test.go b/injector/injector_test.go
index 2c9dceba154..b3457b094b7 100644
--- a/injector/injector_test.go
+++ b/injector/injector_test.go
@@ -6,10 +6,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -35,7 +35,7 @@ var reqWrapper = &openrtb_ext.RequestWrapper{
 		Device: &openrtb2.Device{
 			Lmt: ptrutil.ToPtr(int8(1)),
 		},
-		User: &openrtb2.User{Ext: []byte(`{"consent":"1" }`)},
+		User: &openrtb2.User{Consent: "1", Ext: []byte(`{"consent":"2" }`)},
 		Ext:  []byte(`{"prebid":{"channel": {"name":"test1"},"macros":{"CUSTOMMACR1":"value1"}}}`),
 	},
 }
diff --git a/macros/provider.go b/macros/provider.go
index 0b4ef3eacb3..575aa49aa57 100644
--- a/macros/provider.go
+++ b/macros/provider.go
@@ -5,8 +5,8 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const (
@@ -104,9 +104,8 @@ func (b *MacroProvider) populateRequestMacros(reqWrapper *openrtb_ext.RequestWra
 		}
 	}
 
-	userExt, err := reqWrapper.GetUserExt()
-	if err == nil && userExt != nil && userExt.GetConsent() != nil {
-		b.macros[MacroKeyConsent] = *userExt.GetConsent()
+	if reqWrapper.User != nil && len(reqWrapper.User.Consent) > 0 {
+		b.macros[MacroKeyConsent] = reqWrapper.User.Consent
 	}
 	if reqWrapper.Device != nil && reqWrapper.Device.Lmt != nil {
 		b.macros[MacroKeyLmtTracking] = strconv.Itoa(int(*reqWrapper.Device.Lmt))
diff --git a/macros/provider_test.go b/macros/provider_test.go
index 3da56ea7826..795fae9c412 100644
--- a/macros/provider_test.go
+++ b/macros/provider_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -132,7 +132,7 @@ func TestPopulateRequestMacros(t *testing.T) {
 			args: args{
 				reqWrapper: &openrtb_ext.RequestWrapper{
 					BidRequest: &openrtb2.BidRequest{
-						User: &openrtb2.User{Ext: []byte(`{"consent":"1" }`)},
+						User: &openrtb2.User{Consent: "1", Ext: []byte(`{"consent":"2" }`)},
 						Ext:  []byte(`{"prebid":{"integration":"testIntegration"}}`),
 					},
 				},
@@ -189,7 +189,7 @@ func TestPopulateRequestMacros(t *testing.T) {
 						Device: &openrtb2.Device{
 							Lmt: &lmt,
 						},
-						User: &openrtb2.User{Ext: []byte(`{"consent":"1" }`)},
+						User: &openrtb2.User{Consent: "1", Ext: []byte(`{"consent":"2" }`)},
 						Ext:  []byte(`{"prebid":{"channel": {"name":"test1"},"macros":{"CUSTOMMACR1":"value1"}}}`),
 					},
 				},
diff --git a/macros/string_index_based_replacer_test.go b/macros/string_index_based_replacer_test.go
index 6e09db1e15a..515640d4ff2 100644
--- a/macros/string_index_based_replacer_test.go
+++ b/macros/string_index_based_replacer_test.go
@@ -5,8 +5,8 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/exchange/entities"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/exchange/entities"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -116,7 +116,7 @@ var req *openrtb_ext.RequestWrapper = &openrtb_ext.RequestWrapper{
 		Device: &openrtb2.Device{
 			Lmt: &lmt,
 		},
-		User: &openrtb2.User{Ext: []byte(`{"consent":"yes" }`)},
+		User: &openrtb2.User{Consent: "yes", Ext: []byte(`{"consent":"no" }`)},
 		Ext:  []byte(`{"prebid":{"channel": {"name":"test1"},"macros":{"CUSTOMMACR1":"value1","CUSTOMMACR2":"value2","CUSTOMMACR3":"value3"}}}`),
 	},
 }
diff --git a/main.go b/main.go
index 4ef96b34724..0063b4ee0b6 100644
--- a/main.go
+++ b/main.go
@@ -8,13 +8,13 @@ import (
 	"time"
 
 	jsoniter "github.com/json-iterator/go"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/router"
-	"github.com/prebid/prebid-server/v2/server"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/task"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/router"
+	"github.com/prebid/prebid-server/v3/server"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/task"
 
 	"github.com/golang/glog"
 	"github.com/spf13/viper"
diff --git a/main_test.go b/main_test.go
index 79ae373d473..494e6d67746 100644
--- a/main_test.go
+++ b/main_test.go
@@ -4,7 +4,7 @@ import (
 	"os"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 	"github.com/stretchr/testify/assert"
 
 	"github.com/spf13/viper"
diff --git a/metrics/config/metrics.go b/metrics/config/metrics.go
index 8b544bd966b..dcb330c47f9 100644
--- a/metrics/config/metrics.go
+++ b/metrics/config/metrics.go
@@ -3,10 +3,10 @@ package config
 import (
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	prometheusmetrics "github.com/prebid/prebid-server/v2/metrics/prometheus"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	prometheusmetrics "github.com/prebid/prebid-server/v3/metrics/prometheus"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	gometrics "github.com/rcrowley/go-metrics"
 	influxdb "github.com/vrischmann/go-metrics-influxdb"
 )
diff --git a/metrics/config/metrics_test.go b/metrics/config/metrics_test.go
index 4139f063b72..6060b692bfe 100644
--- a/metrics/config/metrics_test.go
+++ b/metrics/config/metrics_test.go
@@ -6,9 +6,9 @@ import (
 	"testing"
 	"time"
 
-	mainConfig "github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	mainConfig "github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 
 	gometrics "github.com/rcrowley/go-metrics"
 )
@@ -39,16 +39,14 @@ func TestGoMetricsEngine(t *testing.T) {
 	}
 }
 
-// Test the multiengine
 func TestMultiMetricsEngine(t *testing.T) {
 	cfg := mainConfig.Configuration{}
 	cfg.Metrics.Influxdb.Host = "localhost"
 	adapterList := openrtb_ext.CoreBidderNames()
 	goEngine := metrics.NewMetrics(gometrics.NewPrefixedRegistry("prebidserver."), adapterList, mainConfig.DisabledMetrics{}, nil, modulesStages)
-	engineList := make(MultiMetricsEngine, 2)
-	engineList[0] = goEngine
-	engineList[1] = &NilMetricsEngine{}
-	var metricsEngine metrics.MetricsEngine = &engineList
+	metricsEngine := make(MultiMetricsEngine, 2)
+	metricsEngine[0] = goEngine
+	metricsEngine[1] = &NilMetricsEngine{}
 	labels := metrics.Labels{
 		Source:        metrics.DemandWeb,
 		RType:         metrics.ReqTypeORTB2Web,
@@ -108,23 +106,23 @@ func TestMultiMetricsEngine(t *testing.T) {
 		metricsEngine.RecordModuleExecutionError(module)
 		metricsEngine.RecordModuleTimeout(module)
 	}
-	labelsBlacklist := []metrics.Labels{
+	labelsBlocked := []metrics.Labels{
 		{
 			Source:        metrics.DemandWeb,
 			RType:         metrics.ReqTypeAMP,
 			PubID:         "test2",
 			CookieFlag:    metrics.CookieFlagYes,
-			RequestStatus: metrics.RequestStatusBlacklisted,
+			RequestStatus: metrics.RequestStatusBlockedApp,
 		},
 		{
 			Source:        metrics.DemandWeb,
 			RType:         metrics.ReqTypeVideo,
 			PubID:         "test2",
 			CookieFlag:    metrics.CookieFlagYes,
-			RequestStatus: metrics.RequestStatusBlacklisted,
+			RequestStatus: metrics.RequestStatusBlockedApp,
 		},
 	}
-	for _, label := range labelsBlacklist {
+	for _, label := range labelsBlocked {
 		metricsEngine.RecordRequest(label)
 	}
 	impTypeLabels.BannerImps = false
@@ -150,14 +148,14 @@ func TestMultiMetricsEngine(t *testing.T) {
 	//Make the metrics engine, instantiated here with goEngine, fill its RequestStatuses[RequestType][metrics.RequestStatusXX] with the new boolean values added to metrics.Labels
 	VerifyMetrics(t, "RequestStatuses.OpenRTB2.OK", goEngine.RequestStatuses[metrics.ReqTypeORTB2Web][metrics.RequestStatusOK].Count(), 5)
 	VerifyMetrics(t, "RequestStatuses.AMP.OK", goEngine.RequestStatuses[metrics.ReqTypeAMP][metrics.RequestStatusOK].Count(), 0)
-	VerifyMetrics(t, "RequestStatuses.AMP.BlacklistedAcctOrApp", goEngine.RequestStatuses[metrics.ReqTypeAMP][metrics.RequestStatusBlacklisted].Count(), 1)
+	VerifyMetrics(t, "RequestStatuses.AMP.BlockedApp", goEngine.RequestStatuses[metrics.ReqTypeAMP][metrics.RequestStatusBlockedApp].Count(), 1)
 	VerifyMetrics(t, "RequestStatuses.Video.OK", goEngine.RequestStatuses[metrics.ReqTypeVideo][metrics.RequestStatusOK].Count(), 0)
 	VerifyMetrics(t, "RequestStatuses.Video.Error", goEngine.RequestStatuses[metrics.ReqTypeVideo][metrics.RequestStatusErr].Count(), 0)
 	VerifyMetrics(t, "RequestStatuses.Video.BadInput", goEngine.RequestStatuses[metrics.ReqTypeVideo][metrics.RequestStatusBadInput].Count(), 0)
-	VerifyMetrics(t, "RequestStatuses.Video.BlacklistedAcctOrApp", goEngine.RequestStatuses[metrics.ReqTypeVideo][metrics.RequestStatusBlacklisted].Count(), 1)
+	VerifyMetrics(t, "RequestStatuses.Video.BlockedApp", goEngine.RequestStatuses[metrics.ReqTypeVideo][metrics.RequestStatusBlockedApp].Count(), 1)
 	VerifyMetrics(t, "RequestStatuses.OpenRTB2.Error", goEngine.RequestStatuses[metrics.ReqTypeORTB2Web][metrics.RequestStatusErr].Count(), 0)
 	VerifyMetrics(t, "RequestStatuses.OpenRTB2.BadInput", goEngine.RequestStatuses[metrics.ReqTypeORTB2Web][metrics.RequestStatusBadInput].Count(), 0)
-	VerifyMetrics(t, "RequestStatuses.OpenRTB2.BlacklistedAcctOrApp", goEngine.RequestStatuses[metrics.ReqTypeORTB2Web][metrics.RequestStatusBlacklisted].Count(), 0)
+	VerifyMetrics(t, "RequestStatuses.OpenRTB2.BlockedApp", goEngine.RequestStatuses[metrics.ReqTypeORTB2Web][metrics.RequestStatusBlockedApp].Count(), 0)
 
 	VerifyMetrics(t, "ImpsTypeBanner", goEngine.ImpsTypeBanner.Count(), 5)
 	VerifyMetrics(t, "ImpsTypeVideo", goEngine.ImpsTypeVideo.Count(), 3)
diff --git a/metrics/go_metrics.go b/metrics/go_metrics.go
index ac28a18c8e1..428b1891e69 100644
--- a/metrics/go_metrics.go
+++ b/metrics/go_metrics.go
@@ -7,8 +7,8 @@ import (
 	"time"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	metrics "github.com/rcrowley/go-metrics"
 )
 
diff --git a/metrics/go_metrics_test.go b/metrics/go_metrics_test.go
index 7cacd9099db..791b4ee0ec8 100644
--- a/metrics/go_metrics_test.go
+++ b/metrics/go_metrics_test.go
@@ -5,8 +5,8 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	metrics "github.com/rcrowley/go-metrics"
 	"github.com/stretchr/testify/assert"
 )
@@ -73,7 +73,7 @@ func TestNewMetrics(t *testing.T) {
 	ensureContains(t, registry, "syncer.foo.request.ok", m.SyncerRequestsMeter["foo"][SyncerCookieSyncOK])
 	ensureContains(t, registry, "syncer.foo.request.privacy_blocked", m.SyncerRequestsMeter["foo"][SyncerCookieSyncPrivacyBlocked])
 	ensureContains(t, registry, "syncer.foo.request.already_synced", m.SyncerRequestsMeter["foo"][SyncerCookieSyncAlreadySynced])
-	ensureContains(t, registry, "syncer.foo.request.type_not_supported", m.SyncerRequestsMeter["foo"][SyncerCookieSyncTypeNotSupported])
+	ensureContains(t, registry, "syncer.foo.request.rejected_by_filter", m.SyncerRequestsMeter["foo"][SyncerCookieSyncRejectedByFilter])
 	ensureContains(t, registry, "syncer.foo.set.ok", m.SyncerSetsMeter["foo"][SyncerSetUidOK])
 	ensureContains(t, registry, "syncer.foo.set.cleared", m.SyncerSetsMeter["foo"][SyncerSetUidCleared])
 
@@ -908,7 +908,7 @@ func TestRecordSyncerRequest(t *testing.T) {
 	assert.Equal(t, m.SyncerRequestsMeter["foo"][SyncerCookieSyncOK].Count(), int64(1))
 	assert.Equal(t, m.SyncerRequestsMeter["foo"][SyncerCookieSyncPrivacyBlocked].Count(), int64(0))
 	assert.Equal(t, m.SyncerRequestsMeter["foo"][SyncerCookieSyncAlreadySynced].Count(), int64(0))
-	assert.Equal(t, m.SyncerRequestsMeter["foo"][SyncerCookieSyncTypeNotSupported].Count(), int64(0))
+	assert.Equal(t, m.SyncerRequestsMeter["foo"][SyncerCookieSyncRejectedByFilter].Count(), int64(0))
 }
 
 func TestRecordSetUid(t *testing.T) {
diff --git a/metrics/metrics.go b/metrics/metrics.go
index 2696c642e21..45484cab7fd 100644
--- a/metrics/metrics.go
+++ b/metrics/metrics.go
@@ -3,7 +3,7 @@ package metrics
 import (
 	"time"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // Labels defines the labels that can be attached to the metrics.
@@ -234,7 +234,7 @@ const (
 	RequestStatusBadInput         RequestStatus = "badinput"
 	RequestStatusErr              RequestStatus = "err"
 	RequestStatusNetworkErr       RequestStatus = "networkerr"
-	RequestStatusBlacklisted      RequestStatus = "blacklistedacctorapp"
+	RequestStatusBlockedApp       RequestStatus = "blockedapp"
 	RequestStatusQueueTimeout     RequestStatus = "queuetimeout"
 	RequestStatusAccountConfigErr RequestStatus = "acctconfigerr"
 )
@@ -245,7 +245,7 @@ func RequestStatuses() []RequestStatus {
 		RequestStatusBadInput,
 		RequestStatusErr,
 		RequestStatusNetworkErr,
-		RequestStatusBlacklisted,
+		RequestStatusBlockedApp,
 		RequestStatusQueueTimeout,
 		RequestStatusAccountConfigErr,
 	}
@@ -361,7 +361,7 @@ const (
 	SyncerCookieSyncOK               SyncerCookieSyncStatus = "ok"
 	SyncerCookieSyncPrivacyBlocked   SyncerCookieSyncStatus = "privacy_blocked"
 	SyncerCookieSyncAlreadySynced    SyncerCookieSyncStatus = "already_synced"
-	SyncerCookieSyncTypeNotSupported SyncerCookieSyncStatus = "type_not_supported"
+	SyncerCookieSyncRejectedByFilter SyncerCookieSyncStatus = "rejected_by_filter"
 )
 
 // SyncerRequestStatuses returns possible syncer statuses.
@@ -370,7 +370,7 @@ func SyncerRequestStatuses() []SyncerCookieSyncStatus {
 		SyncerCookieSyncOK,
 		SyncerCookieSyncPrivacyBlocked,
 		SyncerCookieSyncAlreadySynced,
-		SyncerCookieSyncTypeNotSupported,
+		SyncerCookieSyncRejectedByFilter,
 	}
 }
 
diff --git a/metrics/metrics_mock.go b/metrics/metrics_mock.go
index 56e2ab8fb1b..e979c6db72e 100644
--- a/metrics/metrics_mock.go
+++ b/metrics/metrics_mock.go
@@ -3,7 +3,7 @@ package metrics
 import (
 	"time"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/mock"
 )
 
diff --git a/metrics/prometheus/preload.go b/metrics/prometheus/preload.go
index 73ea643722b..c59dfeece02 100644
--- a/metrics/prometheus/preload.go
+++ b/metrics/prometheus/preload.go
@@ -1,8 +1,8 @@
 package prometheusmetrics
 
 import (
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/prometheus/client_golang/prometheus"
 )
 
diff --git a/metrics/prometheus/prometheus.go b/metrics/prometheus/prometheus.go
index 89b589badf8..7273a97f07d 100644
--- a/metrics/prometheus/prometheus.go
+++ b/metrics/prometheus/prometheus.go
@@ -6,9 +6,9 @@ import (
 	"strings"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/prometheus/client_golang/prometheus"
 	promCollector "github.com/prometheus/client_golang/prometheus/collectors"
 )
diff --git a/metrics/prometheus/prometheus_test.go b/metrics/prometheus/prometheus_test.go
index fcb9ba6452c..3ec5969bb6f 100644
--- a/metrics/prometheus/prometheus_test.go
+++ b/metrics/prometheus/prometheus_test.go
@@ -5,9 +5,9 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/prometheus/client_golang/prometheus"
 	dto "github.com/prometheus/client_model/go"
 	"github.com/stretchr/testify/assert"
@@ -141,7 +141,7 @@ func TestConnectionMetrics(t *testing.T) {
 func TestRequestMetric(t *testing.T) {
 	m := createMetricsForTesting()
 	requestType := metrics.ReqTypeORTB2Web
-	requestStatus := metrics.RequestStatusBlacklisted
+	requestStatus := metrics.RequestStatusBlockedApp
 
 	m.RecordRequest(metrics.Labels{
 		RType:         requestType,
@@ -285,7 +285,7 @@ func TestRequestMetricWithoutCookie(t *testing.T) {
 	performTest := func(m *Metrics, cookieFlag metrics.CookieFlag) {
 		m.RecordRequest(metrics.Labels{
 			RType:         requestType,
-			RequestStatus: metrics.RequestStatusBlacklisted,
+			RequestStatus: metrics.RequestStatusBlockedApp,
 			CookieFlag:    cookieFlag,
 		})
 	}
@@ -337,7 +337,7 @@ func TestAccountMetric(t *testing.T) {
 	performTest := func(m *Metrics, pubID string) {
 		m.RecordRequest(metrics.Labels{
 			RType:         metrics.ReqTypeORTB2Web,
-			RequestStatus: metrics.RequestStatusBlacklisted,
+			RequestStatus: metrics.RequestStatusBlockedApp,
 			PubID:         pubID,
 		})
 	}
@@ -1235,7 +1235,7 @@ func TestRecordSyncerRequestMetric(t *testing.T) {
 			label:  "already_synced",
 		},
 		{
-			status: metrics.SyncerCookieSyncTypeNotSupported,
+			status: metrics.SyncerCookieSyncRejectedByFilter,
 			label:  "type_not_supported",
 		},
 	}
diff --git a/modules/builder.go b/modules/builder.go
index 36ac5589add..2101b340231 100644
--- a/modules/builder.go
+++ b/modules/builder.go
@@ -1,8 +1,8 @@
 package modules
 
 import (
-	fiftyonedegreesDevicedetection "github.com/prebid/prebid-server/v2/modules/fiftyonedegrees/devicedetection"
-	prebidOrtb2blocking "github.com/prebid/prebid-server/v2/modules/prebid/ortb2blocking"
+	fiftyonedegreesDevicedetection "github.com/prebid/prebid-server/v3/modules/fiftyonedegrees/devicedetection"
+	prebidOrtb2blocking "github.com/prebid/prebid-server/v3/modules/prebid/ortb2blocking"
 )
 
 // builders returns mapping between module name and its builder
diff --git a/modules/fiftyonedegrees/devicedetection/config.go b/modules/fiftyonedegrees/devicedetection/config.go
index a5519026791..a5c302bcff5 100644
--- a/modules/fiftyonedegrees/devicedetection/config.go
+++ b/modules/fiftyonedegrees/devicedetection/config.go
@@ -7,7 +7,7 @@ import (
 	"github.com/51Degrees/device-detection-go/v4/dd"
 	"github.com/pkg/errors"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type config struct {
diff --git a/modules/fiftyonedegrees/devicedetection/evidence_extractor.go b/modules/fiftyonedegrees/devicedetection/evidence_extractor.go
index 1d67e1cdeed..a99a921e75f 100644
--- a/modules/fiftyonedegrees/devicedetection/evidence_extractor.go
+++ b/modules/fiftyonedegrees/devicedetection/evidence_extractor.go
@@ -7,7 +7,7 @@ import (
 	"github.com/pkg/errors"
 
 	"github.com/51Degrees/device-detection-go/v4/dd"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
 )
 
 type defaultEvidenceExtractor struct {
diff --git a/modules/fiftyonedegrees/devicedetection/evidence_extractor_test.go b/modules/fiftyonedegrees/devicedetection/evidence_extractor_test.go
index 9abdf799643..6b2f9b3ea85 100644
--- a/modules/fiftyonedegrees/devicedetection/evidence_extractor_test.go
+++ b/modules/fiftyonedegrees/devicedetection/evidence_extractor_test.go
@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/51Degrees/device-detection-go/v4/dd"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/modules/fiftyonedegrees/devicedetection/hook_auction_entrypoint.go b/modules/fiftyonedegrees/devicedetection/hook_auction_entrypoint.go
index 911f20e1840..7597daa8e00 100644
--- a/modules/fiftyonedegrees/devicedetection/hook_auction_entrypoint.go
+++ b/modules/fiftyonedegrees/devicedetection/hook_auction_entrypoint.go
@@ -1,8 +1,8 @@
 package devicedetection
 
 import (
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
 )
 
 // handleAuctionEntryPointRequestHook is a hookstage.HookFunc that is used to handle the auction entrypoint request hook.
diff --git a/modules/fiftyonedegrees/devicedetection/hook_raw_auction_request.go b/modules/fiftyonedegrees/devicedetection/hook_raw_auction_request.go
index 1146c3cc639..88d0686905d 100644
--- a/modules/fiftyonedegrees/devicedetection/hook_raw_auction_request.go
+++ b/modules/fiftyonedegrees/devicedetection/hook_raw_auction_request.go
@@ -4,8 +4,8 @@ import (
 	"fmt"
 	"math"
 
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
 )
diff --git a/modules/fiftyonedegrees/devicedetection/module.go b/modules/fiftyonedegrees/devicedetection/module.go
index df72e6338a5..80eed36efda 100644
--- a/modules/fiftyonedegrees/devicedetection/module.go
+++ b/modules/fiftyonedegrees/devicedetection/module.go
@@ -8,8 +8,8 @@ import (
 	"github.com/51Degrees/device-detection-go/v4/dd"
 	"github.com/51Degrees/device-detection-go/v4/onpremise"
 	"github.com/pkg/errors"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/modules/moduledeps"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/modules/moduledeps"
 )
 
 func configHashFromConfig(cfg *config) *dd.ConfigHash {
diff --git a/modules/fiftyonedegrees/devicedetection/module_test.go b/modules/fiftyonedegrees/devicedetection/module_test.go
index 7b8095ac431..eb59d01359e 100644
--- a/modules/fiftyonedegrees/devicedetection/module_test.go
+++ b/modules/fiftyonedegrees/devicedetection/module_test.go
@@ -10,8 +10,8 @@ import (
 
 	"github.com/51Degrees/device-detection-go/v4/dd"
 	"github.com/51Degrees/device-detection-go/v4/onpremise"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/modules/moduledeps"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/modules/moduledeps"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 	"github.com/stretchr/testify/require"
diff --git a/modules/generator/builder.tmpl b/modules/generator/builder.tmpl
index db0cd1a4fb4..211e0d1e085 100644
--- a/modules/generator/builder.tmpl
+++ b/modules/generator/builder.tmpl
@@ -2,7 +2,7 @@ package modules
 import (
 {{- range $vendor, $modules := .}}
     {{- range $module := $modules}}
-        {{$vendor}}{{$module | Title}} "github.com/prebid/prebid-server/v2/modules/{{$vendor}}/{{$module}}"
+        {{$vendor}}{{$module | Title}} "github.com/prebid/prebid-server/v3/modules/{{$vendor}}/{{$module}}"
     {{- end}}
 {{- end}}
 )
diff --git a/modules/helpers.go b/modules/helpers.go
index 10890743691..c38b224931e 100644
--- a/modules/helpers.go
+++ b/modules/helpers.go
@@ -4,8 +4,8 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
 )
 
 var moduleReplacer = strings.NewReplacer(".", "_", "-", "_")
diff --git a/modules/moduledeps/deps.go b/modules/moduledeps/deps.go
index a1fa89173b4..266e22575e5 100644
--- a/modules/moduledeps/deps.go
+++ b/modules/moduledeps/deps.go
@@ -3,7 +3,7 @@ package moduledeps
 import (
 	"net/http"
 
-	"github.com/prebid/prebid-server/v2/currency"
+	"github.com/prebid/prebid-server/v3/currency"
 )
 
 // ModuleDeps provides dependencies that custom modules may need for hooks execution.
diff --git a/modules/modules.go b/modules/modules.go
index f3ccd6b1ece..3b266a14c5b 100644
--- a/modules/modules.go
+++ b/modules/modules.go
@@ -5,10 +5,10 @@ import (
 	"fmt"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/modules/moduledeps"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/modules/moduledeps"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 //go:generate go run ./generator/buildergen.go
diff --git a/modules/modules_test.go b/modules/modules_test.go
index 008c1e75c51..b6c59d73168 100644
--- a/modules/modules_test.go
+++ b/modules/modules_test.go
@@ -9,10 +9,10 @@ import (
 	"net/http"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/modules/moduledeps"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/modules/moduledeps"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/modules/prebid/ortb2blocking/analytics.go b/modules/prebid/ortb2blocking/analytics.go
index 1309858c7b6..bab50e3a4e9 100644
--- a/modules/prebid/ortb2blocking/analytics.go
+++ b/modules/prebid/ortb2blocking/analytics.go
@@ -1,8 +1,8 @@
 package ortb2blocking
 
 import (
-	"github.com/prebid/prebid-server/v2/hooks/hookanalytics"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/hooks/hookanalytics"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
 )
 
 const enforceBlockingTag = "enforce_blocking"
diff --git a/modules/prebid/ortb2blocking/config.go b/modules/prebid/ortb2blocking/config.go
index 634170ef192..1990b0a56aa 100644
--- a/modules/prebid/ortb2blocking/config.go
+++ b/modules/prebid/ortb2blocking/config.go
@@ -5,7 +5,7 @@ import (
 	"fmt"
 
 	"github.com/prebid/openrtb/v20/adcom1"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 func newConfig(data json.RawMessage) (config, error) {
diff --git a/modules/prebid/ortb2blocking/hook_bidderrequest.go b/modules/prebid/ortb2blocking/hook_bidderrequest.go
index 02e3634f679..4b3cb87c855 100644
--- a/modules/prebid/ortb2blocking/hook_bidderrequest.go
+++ b/modules/prebid/ortb2blocking/hook_bidderrequest.go
@@ -7,9 +7,9 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func handleBidderRequestHook(
diff --git a/modules/prebid/ortb2blocking/hook_raw_bidder_response.go b/modules/prebid/ortb2blocking/hook_raw_bidder_response.go
index 215de260b09..f9b028b3c40 100644
--- a/modules/prebid/ortb2blocking/hook_raw_bidder_response.go
+++ b/modules/prebid/ortb2blocking/hook_raw_bidder_response.go
@@ -7,9 +7,9 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
 )
 
 func handleRawBidderResponseHook(
diff --git a/modules/prebid/ortb2blocking/module.go b/modules/prebid/ortb2blocking/module.go
index 0b85c43dad2..24ff28df746 100644
--- a/modules/prebid/ortb2blocking/module.go
+++ b/modules/prebid/ortb2blocking/module.go
@@ -5,8 +5,8 @@ import (
 	"encoding/json"
 
 	"github.com/prebid/openrtb/v20/adcom1"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/modules/moduledeps"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/modules/moduledeps"
 )
 
 func Builder(_ json.RawMessage, _ moduledeps.ModuleDeps) (interface{}, error) {
diff --git a/modules/prebid/ortb2blocking/module_test.go b/modules/prebid/ortb2blocking/module_test.go
index 8178cba15fe..d07ea6bd4d0 100644
--- a/modules/prebid/ortb2blocking/module_test.go
+++ b/modules/prebid/ortb2blocking/module_test.go
@@ -8,12 +8,12 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/adapters"
-	"github.com/prebid/prebid-server/v2/hooks/hookanalytics"
-	"github.com/prebid/prebid-server/v2/hooks/hookexecution"
-	"github.com/prebid/prebid-server/v2/hooks/hookstage"
-	"github.com/prebid/prebid-server/v2/modules/moduledeps"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/hooks/hookanalytics"
+	"github.com/prebid/prebid-server/v3/hooks/hookexecution"
+	"github.com/prebid/prebid-server/v3/hooks/hookstage"
+	"github.com/prebid/prebid-server/v3/modules/moduledeps"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/openrtb_ext/bidders.go b/openrtb_ext/bidders.go
index d5c4abe1ef8..88227298abd 100644
--- a/openrtb_ext/bidders.go
+++ b/openrtb_ext/bidders.go
@@ -157,6 +157,7 @@ var coreBidderNames []BidderName = []BidderName{
 	BidderMgid,
 	BidderMgidX,
 	BidderMinuteMedia,
+	BidderMissena,
 	BidderMobfoxpb,
 	BidderMobileFuse,
 	BidderMotorik,
@@ -486,6 +487,7 @@ const (
 	BidderMgid              BidderName = "mgid"
 	BidderMgidX             BidderName = "mgidX"
 	BidderMinuteMedia       BidderName = "minutemedia"
+	BidderMissena           BidderName = "missena"
 	BidderMobfoxpb          BidderName = "mobfoxpb"
 	BidderMobileFuse        BidderName = "mobilefuse"
 	BidderMotorik           BidderName = "motorik"
diff --git a/openrtb_ext/convert_down.go b/openrtb_ext/convert_down.go
index e0842978551..bfb6028d8c7 100644
--- a/openrtb_ext/convert_down.go
+++ b/openrtb_ext/convert_down.go
@@ -31,13 +31,6 @@ func ConvertDownTo25(r *RequestWrapper) error {
 		}
 	}
 
-	// Remove fields introduced in OpenRTB 2.6+. The previous OpenRTB 2.5 spec did not specify that
-	// bidders must tolerate new or unexpected fields.
-	clear26Fields(r)
-	clear202211Fields(r)
-	clear202303Fields(r)
-	clear202309Fields(r)
-
 	return nil
 }
 
diff --git a/openrtb_ext/convert_down_test.go b/openrtb_ext/convert_down_test.go
index 1bf112dcb3a..f32f3da04bb 100644
--- a/openrtb_ext/convert_down_test.go
+++ b/openrtb_ext/convert_down_test.go
@@ -6,8 +6,8 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -35,50 +35,6 @@ func TestConvertDownTo25(t *testing.T) {
 				User:   &openrtb2.User{Ext: json.RawMessage(`{"consent":"1","eids":[{"source":"42"}]}`)},
 			},
 		},
-		{
-			name: "2.6-dropped", // integration with clear26Fields
-			givenRequest: openrtb2.BidRequest{
-				ID:     "anyID",
-				CatTax: adcom1.CatTaxIABContent10,
-				Device: &openrtb2.Device{LangB: "anyLang"},
-			},
-			expectedRequest: openrtb2.BidRequest{
-				ID:     "anyID",
-				Device: &openrtb2.Device{},
-			},
-		},
-		{
-			name: "2.6-202211-dropped", // integration with clear202211Fields
-			givenRequest: openrtb2.BidRequest{
-				ID:  "anyID",
-				App: &openrtb2.App{InventoryPartnerDomain: "anyDomain"},
-			},
-			expectedRequest: openrtb2.BidRequest{
-				ID:  "anyID",
-				App: &openrtb2.App{},
-			},
-		},
-		{
-			name: "2.6-202303-dropped", // integration with clear202303Fields
-			givenRequest: openrtb2.BidRequest{
-				ID:  "anyID",
-				Imp: []openrtb2.Imp{{ID: "1", Refresh: &openrtb2.Refresh{Count: ptrutil.ToPtr(1)}}},
-			},
-			expectedRequest: openrtb2.BidRequest{
-				ID:  "anyID",
-				Imp: []openrtb2.Imp{{ID: "1"}},
-			},
-		},
-		{
-			name: "2.6-202309-dropped", // integration with clear202309Fields
-			givenRequest: openrtb2.BidRequest{
-				ID:   "anyID",
-				ACat: []string{"anyACat"},
-			},
-			expectedRequest: openrtb2.BidRequest{
-				ID: "anyID",
-			},
-		},
 		{
 			name: "2.6-to-2.5-OtherExtFields",
 			givenRequest: openrtb2.BidRequest{
diff --git a/openrtb_ext/deal_tier.go b/openrtb_ext/deal_tier.go
index e96ca4b8473..b0f2675d660 100644
--- a/openrtb_ext/deal_tier.go
+++ b/openrtb_ext/deal_tier.go
@@ -2,7 +2,7 @@ package openrtb_ext
 
 import (
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // DealTier defines the configuration of a deal tier.
diff --git a/openrtb_ext/deal_tier_test.go b/openrtb_ext/deal_tier_test.go
index 5407dd2af38..6808f90a0da 100644
--- a/openrtb_ext/deal_tier_test.go
+++ b/openrtb_ext/deal_tier_test.go
@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/openrtb_ext/device.go b/openrtb_ext/device.go
index 0888d06160f..2107a3081ff 100644
--- a/openrtb_ext/device.go
+++ b/openrtb_ext/device.go
@@ -6,7 +6,7 @@ import (
 	"strconv"
 
 	"github.com/buger/jsonparser"
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 )
 
 // PrebidExtKey represents the prebid extension key used in requests
diff --git a/openrtb_ext/device_test.go b/openrtb_ext/device_test.go
index f40e9650061..52b679fda38 100644
--- a/openrtb_ext/device_test.go
+++ b/openrtb_ext/device_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/openrtb_ext/floors.go b/openrtb_ext/floors.go
index d903fe971f0..e663229a797 100644
--- a/openrtb_ext/floors.go
+++ b/openrtb_ext/floors.go
@@ -4,7 +4,7 @@ import (
 	"maps"
 	"slices"
 
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 // Defines strings for FetchStatus
diff --git a/openrtb_ext/floors_test.go b/openrtb_ext/floors_test.go
index 687101bfa3a..df7d1e5dc22 100644
--- a/openrtb_ext/floors_test.go
+++ b/openrtb_ext/floors_test.go
@@ -4,7 +4,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/openrtb_ext/imp_appnexus.go b/openrtb_ext/imp_appnexus.go
index db949f661fd..9e7a43495c8 100644
--- a/openrtb_ext/imp_appnexus.go
+++ b/openrtb_ext/imp_appnexus.go
@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // ExtImpAppnexus defines the contract for bidrequest.imp[i].ext.prebid.bidder.appnexus
diff --git a/openrtb_ext/imp_appnexus_test.go b/openrtb_ext/imp_appnexus_test.go
index 9d65f3be3ad..52e42d4d53a 100644
--- a/openrtb_ext/imp_appnexus_test.go
+++ b/openrtb_ext/imp_appnexus_test.go
@@ -3,7 +3,7 @@ package openrtb_ext
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/openrtb_ext/imp_connectad.go b/openrtb_ext/imp_connectad.go
index d530534cf4f..4affaed1ea3 100644
--- a/openrtb_ext/imp_connectad.go
+++ b/openrtb_ext/imp_connectad.go
@@ -1,6 +1,6 @@
 package openrtb_ext
 
-import "github.com/prebid/prebid-server/v2/util/jsonutil"
+import "github.com/prebid/prebid-server/v3/util/jsonutil"
 
 type ExtImpConnectAd struct {
 	NetworkID jsonutil.StringInt `json:"networkId"`
diff --git a/openrtb_ext/imp_freewheelssp.go b/openrtb_ext/imp_freewheelssp.go
index 3d015d96722..5ed1f626093 100644
--- a/openrtb_ext/imp_freewheelssp.go
+++ b/openrtb_ext/imp_freewheelssp.go
@@ -1,7 +1,7 @@
 package openrtb_ext
 
 import (
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type ImpExtFreewheelSSP struct {
diff --git a/openrtb_ext/imp_missena.go b/openrtb_ext/imp_missena.go
new file mode 100644
index 00000000000..3e341957123
--- /dev/null
+++ b/openrtb_ext/imp_missena.go
@@ -0,0 +1,7 @@
+package openrtb_ext
+
+type ExtImpMissena struct {
+	ApiKey    string `json:"apiKey"`
+	Placement string `json:"placement"`
+	TestMode  string `json:"test"`
+}
diff --git a/openrtb_ext/imp_pulsepoint.go b/openrtb_ext/imp_pulsepoint.go
index c2ed36256e1..a372e3765c5 100644
--- a/openrtb_ext/imp_pulsepoint.go
+++ b/openrtb_ext/imp_pulsepoint.go
@@ -1,7 +1,7 @@
 package openrtb_ext
 
 import (
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // ExtImpPulsePoint defines the json spec for bidrequest.imp[i].ext.prebid.bidder.pulsepoint
diff --git a/openrtb_ext/multibid_test.go b/openrtb_ext/multibid_test.go
index 926ab261b0f..5a552653119 100644
--- a/openrtb_ext/multibid_test.go
+++ b/openrtb_ext/multibid_test.go
@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/openrtb_ext/regs_test.go b/openrtb_ext/regs_test.go
index a32c0362a1c..064282c1f3f 100644
--- a/openrtb_ext/regs_test.go
+++ b/openrtb_ext/regs_test.go
@@ -3,7 +3,7 @@ package openrtb_ext
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/openrtb_ext/request.go b/openrtb_ext/request.go
index b4f29a704d9..eb01098c097 100644
--- a/openrtb_ext/request.go
+++ b/openrtb_ext/request.go
@@ -7,8 +7,8 @@ import (
 	"slices"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 // FirstPartyDataExtKey defines a field name within request.ext and request.imp.ext reserved for first party data.
diff --git a/openrtb_ext/request_test.go b/openrtb_ext/request_test.go
index 81a12965307..c5f4abe22d4 100644
--- a/openrtb_ext/request_test.go
+++ b/openrtb_ext/request_test.go
@@ -6,8 +6,8 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/openrtb_ext/request_wrapper.go b/openrtb_ext/request_wrapper.go
index a73cfc9241c..cb60948768f 100644
--- a/openrtb_ext/request_wrapper.go
+++ b/openrtb_ext/request_wrapper.go
@@ -7,8 +7,8 @@ import (
 	"slices"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 // RequestWrapper wraps the OpenRTB request to provide a storage location for unmarshalled ext fields, so they
@@ -95,6 +95,12 @@ func (rw *RequestWrapper) GetImp() []*ImpWrapper {
 
 func (rw *RequestWrapper) SetImp(imps []*ImpWrapper) {
 	rw.impWrappers = imps
+	imparr := make([]openrtb2.Imp, len(imps))
+	for i, iw := range imps {
+		imparr[i] = *iw.Imp
+		iw.Imp = &imparr[i]
+	}
+	rw.Imp = imparr
 	rw.impWrappersAccessed = true
 }
 
@@ -239,6 +245,7 @@ func (rw *RequestWrapper) rebuildImp() error {
 			return err
 		}
 		rw.Imp[i] = *rw.impWrappers[i].Imp
+		rw.impWrappers[i].Imp = &rw.Imp[i]
 	}
 
 	return nil
@@ -392,6 +399,8 @@ func (rw *RequestWrapper) rebuildSourceExt() error {
 	return nil
 }
 
+// Clone clones the request wrapper exts and the imp wrappers
+// the cloned imp wrappers are pointing to the bid request imps
 func (rw *RequestWrapper) Clone() *RequestWrapper {
 	if rw == nil {
 		return nil
@@ -414,6 +423,26 @@ func (rw *RequestWrapper) Clone() *RequestWrapper {
 	return &clone
 }
 
+func (rw *RequestWrapper) CloneAndClearImpWrappers() *RequestWrapper {
+	if rw == nil {
+		return nil
+	}
+	rw.impWrappersAccessed = false
+
+	clone := *rw
+	clone.impWrappers = nil
+	clone.userExt = rw.userExt.Clone()
+	clone.deviceExt = rw.deviceExt.Clone()
+	clone.requestExt = rw.requestExt.Clone()
+	clone.appExt = rw.appExt.Clone()
+	clone.regExt = rw.regExt.Clone()
+	clone.siteExt = rw.siteExt.Clone()
+	clone.doohExt = rw.doohExt.Clone()
+	clone.sourceExt = rw.sourceExt.Clone()
+
+	return &clone
+}
+
 // ---------------------------------------------------------------
 // UserExt provides an interface for request.user.ext
 // ---------------------------------------------------------------
diff --git a/openrtb_ext/request_wrapper_test.go b/openrtb_ext/request_wrapper_test.go
index c7892b964af..650a1efbe93 100644
--- a/openrtb_ext/request_wrapper_test.go
+++ b/openrtb_ext/request_wrapper_test.go
@@ -5,8 +5,8 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -198,6 +198,7 @@ func TestRebuildImp(t *testing.T) {
 		request           openrtb2.BidRequest
 		requestImpWrapper []*ImpWrapper
 		expectedRequest   openrtb2.BidRequest
+		expectedAccessed  bool
 		expectedError     string
 	}{
 		{
@@ -217,11 +218,13 @@ func TestRebuildImp(t *testing.T) {
 			request:           openrtb2.BidRequest{Imp: []openrtb2.Imp{{ID: "1"}}},
 			requestImpWrapper: []*ImpWrapper{{Imp: &openrtb2.Imp{ID: "2"}, impExt: &ImpExt{prebid: prebid, prebidDirty: true}}},
 			expectedRequest:   openrtb2.BidRequest{Imp: []openrtb2.Imp{{ID: "2", Ext: prebidJson}}},
+			expectedAccessed:  true,
 		},
 		{
 			description:       "One - Accessed - Error",
 			request:           openrtb2.BidRequest{Imp: []openrtb2.Imp{{ID: "1"}}},
 			requestImpWrapper: []*ImpWrapper{{Imp: nil, impExt: &ImpExt{}}},
+			expectedAccessed:  true,
 			expectedError:     "ImpWrapper RebuildImp called on a nil Imp",
 		},
 		{
@@ -229,6 +232,7 @@ func TestRebuildImp(t *testing.T) {
 			request:           openrtb2.BidRequest{Imp: []openrtb2.Imp{{ID: "1"}, {ID: "2"}}},
 			requestImpWrapper: []*ImpWrapper{{Imp: &openrtb2.Imp{ID: "1"}, impExt: &ImpExt{}}, {Imp: &openrtb2.Imp{ID: "2"}, impExt: &ImpExt{prebid: prebid, prebidDirty: true}}},
 			expectedRequest:   openrtb2.BidRequest{Imp: []openrtb2.Imp{{ID: "1"}, {ID: "2", Ext: prebidJson}}},
+			expectedAccessed:  true,
 		},
 	}
 
@@ -247,6 +251,20 @@ func TestRebuildImp(t *testing.T) {
 			assert.NoError(t, err, test.description)
 			assert.Equal(t, test.expectedRequest, *w.BidRequest, test.description)
 		}
+
+		if test.expectedAccessed && test.expectedError == "" {
+			bidRequestImps := make(map[string]*openrtb2.Imp, 0)
+			for i, v := range w.Imp {
+				bidRequestImps[v.ID] = &w.Imp[i]
+			}
+			wrapperImps := make(map[string]*openrtb2.Imp, 0)
+			for i, v := range w.impWrappers {
+				wrapperImps[v.ID] = w.impWrappers[i].Imp
+			}
+			for k := range bidRequestImps {
+				assert.Same(t, bidRequestImps[k], wrapperImps[k], test.description)
+			}
+		}
 	}
 }
 
@@ -1866,6 +1884,37 @@ func TestImpWrapperGetImpExt(t *testing.T) {
 	}
 }
 
+func TestImpWrapperSetImp(t *testing.T) {
+	origImps := []openrtb2.Imp{
+		{ID: "imp1", TagID: "tag1"},
+		{ID: "imp2", TagID: "tag2"},
+		{ID: "imp3", TagID: "tag3"},
+	}
+	expectedImps := []openrtb2.Imp{
+		{ID: "imp1", TagID: "tag4", BidFloor: 0.5},
+		{ID: "imp1.1", TagID: "tag2", BidFloor: 0.6},
+		{ID: "imp2", TagID: "notag"},
+		{ID: "imp3", TagID: "tag3"},
+	}
+	rw := RequestWrapper{BidRequest: &openrtb2.BidRequest{Imp: origImps}}
+	iw := rw.GetImp()
+	rw.Imp[0].TagID = "tag4"
+	rw.Imp[0].BidFloor = 0.5
+	iw[1] = &ImpWrapper{Imp: &expectedImps[1]}
+	*iw[2] = ImpWrapper{Imp: &expectedImps[2]}
+	iw = append(iw, &ImpWrapper{Imp: &expectedImps[3]})
+
+	rw.SetImp(iw)
+	assert.Equal(t, expectedImps, rw.BidRequest.Imp)
+	iw = rw.GetImp()
+	// Ensure that the wrapper pointers are in sync.
+	for i := range rw.BidRequest.Imp {
+		// Assert the pointers are in sync.
+		assert.Same(t, &rw.Imp[i], iw[i].Imp)
+	}
+
+}
+
 func TestImpExtTid(t *testing.T) {
 	impExt := &ImpExt{}
 
diff --git a/openrtb_ext/site_test.go b/openrtb_ext/site_test.go
index f6fb04c50ee..e06c0e67bd4 100644
--- a/openrtb_ext/site_test.go
+++ b/openrtb_ext/site_test.go
@@ -3,8 +3,8 @@ package openrtb_ext_test
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/openrtb_ext/supplyChain.go b/openrtb_ext/supplyChain.go
index 1dc9cc3b359..0051d647ff9 100644
--- a/openrtb_ext/supplyChain.go
+++ b/openrtb_ext/supplyChain.go
@@ -2,7 +2,7 @@ package openrtb_ext
 
 import (
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 func cloneSupplyChain(schain *openrtb2.SupplyChain) *openrtb2.SupplyChain {
diff --git a/openrtb_ext/supplyChain_test.go b/openrtb_ext/supplyChain_test.go
index 0ab67e87d67..1adfaf8f62b 100644
--- a/openrtb_ext/supplyChain_test.go
+++ b/openrtb_ext/supplyChain_test.go
@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/ortb/clone.go b/ortb/clone.go
index 1e34795e05a..07eaf2886b7 100644
--- a/ortb/clone.go
+++ b/ortb/clone.go
@@ -4,7 +4,7 @@ import (
 	"slices"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 func CloneDataSlice(s []openrtb2.Data) []openrtb2.Data {
@@ -277,3 +277,19 @@ func CloneBidRequestPartial(s *openrtb2.BidRequest) *openrtb2.BidRequest {
 
 	return &c
 }
+
+func CloneRegs(s *openrtb2.Regs) *openrtb2.Regs {
+	if s == nil {
+		return nil
+	}
+
+	// Shallow Copy (Value Fields)
+	c := *s
+
+	// Deep Copy (Pointers)
+	c.GDPR = ptrutil.Clone(s.GDPR)
+	c.GPPSID = slices.Clone(s.GPPSID)
+	c.Ext = slices.Clone(s.Ext)
+
+	return &c
+}
diff --git a/ortb/clone_test.go b/ortb/clone_test.go
index 21c19f170c6..14bdc0bb194 100644
--- a/ortb/clone_test.go
+++ b/ortb/clone_test.go
@@ -7,7 +7,7 @@ import (
 
 	"github.com/prebid/openrtb/v20/adcom1"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -759,3 +759,44 @@ func discoverPointerFields(t reflect.Type) []string {
 	}
 	return fields
 }
+
+func TestCloneRegs(t *testing.T) {
+	t.Run("nil", func(t *testing.T) {
+		result := CloneRegs(nil)
+		assert.Nil(t, result)
+	})
+
+	t.Run("empty", func(t *testing.T) {
+		given := &openrtb2.Regs{}
+		result := CloneRegs(given)
+		assert.Empty(t, result)
+		assert.NotSame(t, given, result)
+	})
+
+	t.Run("populated", func(t *testing.T) {
+		given := &openrtb2.Regs{
+			COPPA:     1,
+			GDPR:      ptrutil.ToPtr(int8(0)),
+			USPrivacy: "1YNN",
+			GPP:       "SomeGPPStrig",
+			GPPSID:    []int8{1, 2, 3},
+			Ext:       json.RawMessage(`{"anyField":1}`),
+		}
+		result := CloneRegs(given)
+		assert.Equal(t, given, result, "equality")
+		assert.NotSame(t, given, result, "pointer")
+		assert.NotSame(t, given.GDPR, result.GDPR, "gdpr")
+		assert.NotSame(t, given.GPPSID, result.GPPSID, "gppsid[]")
+		assert.NotSame(t, given.GPPSID[0], result.GPPSID[0], "gppsid[0]")
+		assert.NotSame(t, given.Ext, result.Ext, "ext")
+	})
+
+	t.Run("assumptions", func(t *testing.T) {
+		assert.ElementsMatch(t, discoverPointerFields(reflect.TypeOf(openrtb2.Regs{})),
+			[]string{
+				"GDPR",
+				"GPPSID",
+				"Ext",
+			})
+	})
+}
diff --git a/ortb/default.go b/ortb/default.go
index c5e43e2e770..4a25051e78a 100644
--- a/ortb/default.go
+++ b/ortb/default.go
@@ -1,8 +1,8 @@
 package ortb
 
 import (
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 const (
diff --git a/ortb/default_test.go b/ortb/default_test.go
index 7017f5f2114..a52fc508cb7 100644
--- a/ortb/default_test.go
+++ b/ortb/default_test.go
@@ -8,10 +8,10 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 )
 
 func TestSetDefaults(t *testing.T) {
diff --git a/ortb/request_validator.go b/ortb/request_validator.go
index efe047f986f..c7cc0a4ee9b 100644
--- a/ortb/request_validator.go
+++ b/ortb/request_validator.go
@@ -4,9 +4,9 @@ import (
 	"encoding/json"
 	"fmt"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/stored_responses"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/stored_responses"
 )
 
 type ValidationConfig struct {
diff --git a/ortb/request_validator_banner.go b/ortb/request_validator_banner.go
index 55197c5636b..fea68121a9a 100644
--- a/ortb/request_validator_banner.go
+++ b/ortb/request_validator_banner.go
@@ -4,7 +4,7 @@ import (
 	"fmt"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 func isInterstitial(imp *openrtb_ext.ImpWrapper) bool {
diff --git a/ortb/request_validator_banner_test.go b/ortb/request_validator_banner_test.go
index ea3ec3a008e..e131c32e98e 100644
--- a/ortb/request_validator_banner_test.go
+++ b/ortb/request_validator_banner_test.go
@@ -4,7 +4,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/ortb/request_validator_native.go b/ortb/request_validator_native.go
index 02c0c606e97..1209a13913f 100644
--- a/ortb/request_validator_native.go
+++ b/ortb/request_validator_native.go
@@ -8,8 +8,8 @@ import (
 	"github.com/prebid/openrtb/v20/native1"
 	nativeRequests "github.com/prebid/openrtb/v20/native1/request"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 // fillAndValidateNative validates the request, and assigns the Asset IDs as recommended by the Native v1.2 spec.
diff --git a/ortb/request_validator_test.go b/ortb/request_validator_test.go
index 1eb0708fcc8..abceda31efb 100644
--- a/ortb/request_validator_test.go
+++ b/ortb/request_validator_test.go
@@ -6,8 +6,8 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/ortb/request_validator_video_test.go b/ortb/request_validator_video_test.go
index 10dbfee4967..3d579e2c77c 100644
--- a/ortb/request_validator_video_test.go
+++ b/ortb/request_validator_video_test.go
@@ -4,7 +4,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/pbs/usersync.go b/pbs/usersync.go
index bfe12689177..b8c0572c4ac 100644
--- a/pbs/usersync.go
+++ b/pbs/usersync.go
@@ -10,9 +10,9 @@ import (
 
 	"github.com/golang/glog"
 	"github.com/julienschmidt/httprouter"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/server/ssl"
-	"github.com/prebid/prebid-server/v2/usersync"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/server/ssl"
+	"github.com/prebid/prebid-server/v3/usersync"
 )
 
 // Recaptcha code from https://github.com/haisum/recaptcha/blob/master/recaptcha.go
diff --git a/prebid_cache_client/client.go b/prebid_cache_client/client.go
index fb3fb24d9cc..a409b4f7d1a 100644
--- a/prebid_cache_client/client.go
+++ b/prebid_cache_client/client.go
@@ -12,8 +12,8 @@ import (
 	"strings"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
 
 	"github.com/buger/jsonparser"
 	"github.com/golang/glog"
diff --git a/prebid_cache_client/client_test.go b/prebid_cache_client/client_test.go
index f3ee3065ff1..f00a835a4a0 100644
--- a/prebid_cache_client/client_test.go
+++ b/prebid_cache_client/client_test.go
@@ -10,10 +10,10 @@ import (
 	"strconv"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	metricsConf "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	metricsConf "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
diff --git a/privacy/activitycontrol.go b/privacy/activitycontrol.go
index 7d1e16e99a5..674d7519881 100644
--- a/privacy/activitycontrol.go
+++ b/privacy/activitycontrol.go
@@ -1,8 +1,8 @@
 package privacy
 
 import (
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 type ActivityResult int
diff --git a/privacy/activitycontrol_test.go b/privacy/activitycontrol_test.go
index 5cd9f38b011..add20ad2c3e 100644
--- a/privacy/activitycontrol_test.go
+++ b/privacy/activitycontrol_test.go
@@ -3,9 +3,9 @@ package privacy
 import (
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/privacy/ccpa/consentwriter.go b/privacy/ccpa/consentwriter.go
index 265d47e8595..3a0934c5722 100644
--- a/privacy/ccpa/consentwriter.go
+++ b/privacy/ccpa/consentwriter.go
@@ -2,7 +2,6 @@ package ccpa
 
 import (
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
 )
 
 // ConsentWriter implements the old PolicyWriter interface for CCPA.
@@ -16,16 +15,14 @@ func (c ConsentWriter) Write(req *openrtb2.BidRequest) error {
 	if req == nil {
 		return nil
 	}
-	reqWrap := &openrtb_ext.RequestWrapper{BidRequest: req}
 
 	// Set consent string in USPrivacy
 	if c.Consent != "" {
-		if regsExt, err := reqWrap.GetRegExt(); err == nil {
-			regsExt.SetUSPrivacy(c.Consent)
-		} else {
-			return err
+		if req.Regs == nil {
+			req.Regs = &openrtb2.Regs{}
 		}
+		req.Regs.USPrivacy = c.Consent
 	}
 
-	return reqWrap.RebuildRequest()
+	return nil
 }
diff --git a/privacy/ccpa/consentwriter_test.go b/privacy/ccpa/consentwriter_test.go
index a92400dce53..6d0b89e24c2 100644
--- a/privacy/ccpa/consentwriter_test.go
+++ b/privacy/ccpa/consentwriter_test.go
@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -75,7 +75,9 @@ func TestConsentWriterLegacy(t *testing.T) {
 			description: "Success",
 			request:     &openrtb2.BidRequest{},
 			expected: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{Ext: json.RawMessage(`{"us_privacy":"anyConsent"}`)},
+				Regs: &openrtb2.Regs{
+					USPrivacy: "anyConsent",
+				},
 			},
 		},
 		{
@@ -83,9 +85,12 @@ func TestConsentWriterLegacy(t *testing.T) {
 			request: &openrtb2.BidRequest{
 				Regs: &openrtb2.Regs{Ext: json.RawMessage(`malformed}`)},
 			},
-			expectedError: true,
+			expectedError: false,
 			expected: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{Ext: json.RawMessage(`malformed}`)},
+				Regs: &openrtb2.Regs{
+					USPrivacy: "anyConsent",
+					Ext:       json.RawMessage(`malformed}`),
+				},
 			},
 		},
 	}
diff --git a/privacy/ccpa/parsedpolicy.go b/privacy/ccpa/parsedpolicy.go
index 056cc99ee1b..98b04a16322 100644
--- a/privacy/ccpa/parsedpolicy.go
+++ b/privacy/ccpa/parsedpolicy.go
@@ -4,7 +4,7 @@ import (
 	"errors"
 	"fmt"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 )
 
 const (
diff --git a/privacy/ccpa/policy.go b/privacy/ccpa/policy.go
index 0b719bf1455..b4841a174f8 100644
--- a/privacy/ccpa/policy.go
+++ b/privacy/ccpa/policy.go
@@ -7,9 +7,9 @@ import (
 	gpplib "github.com/prebid/go-gpp"
 	gppConstants "github.com/prebid/go-gpp/constants"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	gppPolicy "github.com/prebid/prebid-server/v2/privacy/gpp"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	gppPolicy "github.com/prebid/prebid-server/v3/privacy/gpp"
 )
 
 // Policy represents the CCPA regulatory information from an OpenRTB bid request.
@@ -41,15 +41,8 @@ func ReadFromRequestWrapper(req *openrtb_ext.RequestWrapper, gpp gpplib.GppConta
 			WarningCode: errortypes.InvalidPrivacyConsentWarningCode}
 	}
 
-	if consent == "" {
-		// Read consent from request.regs.ext
-		regsExt, err := req.GetRegExt()
-		if err != nil {
-			return Policy{}, fmt.Errorf("error reading request.regs.ext: %s", err)
-		}
-		if regsExt != nil {
-			consent = regsExt.GetUSPrivacy()
-		}
+	if consent == "" && req.Regs != nil {
+		consent = req.Regs.USPrivacy
 	}
 	// Read no sale bidders from request.ext.prebid
 	reqExt, err := req.GetRequestExt()
@@ -75,21 +68,19 @@ func ReadFromRequest(req *openrtb2.BidRequest) (Policy, error) {
 
 // Write mutates an OpenRTB bid request with the CCPA regulatory information.
 func (p Policy) Write(req *openrtb_ext.RequestWrapper) error {
-	if req == nil {
+	if req == nil || req.BidRequest == nil {
 		return nil
 	}
 
-	regsExt, err := req.GetRegExt()
-	if err != nil {
-		return err
-	}
-
 	reqExt, err := req.GetRequestExt()
 	if err != nil {
 		return err
 	}
 
-	regsExt.SetUSPrivacy(p.Consent)
+	if req.Regs == nil {
+		req.Regs = &openrtb2.Regs{}
+	}
+	req.Regs.USPrivacy = p.Consent
 	setPrebidNoSale(p.NoSaleBidders, reqExt)
 	return nil
 }
diff --git a/privacy/ccpa/policy_test.go b/privacy/ccpa/policy_test.go
index 20d9f680ba1..89bb2ccf040 100644
--- a/privacy/ccpa/policy_test.go
+++ b/privacy/ccpa/policy_test.go
@@ -8,7 +8,7 @@ import (
 	gpplib "github.com/prebid/go-gpp"
 	gppConstants "github.com/prebid/go-gpp/constants"
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -23,7 +23,7 @@ func TestReadFromRequestWrapper(t *testing.T) {
 		{
 			description: "Success",
 			request: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{Ext: json.RawMessage(`{"us_privacy":"ABC"}`)},
+				Regs: &openrtb2.Regs{USPrivacy: "ABC"},
 				Ext:  json.RawMessage(`{"prebid":{"nosale":["a", "b"]}}`),
 			},
 			expectedPolicy: Policy{
@@ -83,26 +83,10 @@ func TestReadFromRequestWrapper(t *testing.T) {
 				NoSaleBidders: []string{"a", "b"},
 			},
 		},
-		{
-			description: "Malformed Regs.Ext",
-			request: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{Ext: json.RawMessage(`malformed`)},
-				Ext:  json.RawMessage(`{"prebid":{"nosale":["a", "b"]}}`),
-			},
-			expectedError: true,
-		},
-		{
-			description: "Invalid Regs.Ext Type",
-			request: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{Ext: json.RawMessage(`{"us_privacy":123`)},
-				Ext:  json.RawMessage(`{"prebid":{"nosale":["a", "b"]}}`),
-			},
-			expectedError: true,
-		},
 		{
 			description: "Nil Ext",
 			request: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{Ext: json.RawMessage(`{"us_privacy":"ABC"}`)},
+				Regs: &openrtb2.Regs{USPrivacy: "ABC"},
 				Ext:  nil,
 			},
 			expectedPolicy: Policy{
@@ -113,7 +97,7 @@ func TestReadFromRequestWrapper(t *testing.T) {
 		{
 			description: "Empty Ext",
 			request: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{Ext: json.RawMessage(`{"us_privacy":"ABC"}`)},
+				Regs: &openrtb2.Regs{USPrivacy: "ABC"},
 				Ext:  json.RawMessage(`{}`),
 			},
 			expectedPolicy: Policy{
@@ -124,7 +108,7 @@ func TestReadFromRequestWrapper(t *testing.T) {
 		{
 			description: "Missing Ext.Prebid No Sale Value",
 			request: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{Ext: json.RawMessage(`{"us_privacy":"ABC"}`)},
+				Regs: &openrtb2.Regs{USPrivacy: "ABC"},
 				Ext:  json.RawMessage(`{"anythingElse":"42"}`),
 			},
 			expectedPolicy: Policy{
@@ -148,15 +132,6 @@ func TestReadFromRequestWrapper(t *testing.T) {
 			},
 			expectedError: true,
 		},
-		{
-			description: "Injection Attack",
-			request: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{Ext: json.RawMessage(`{"us_privacy":"1YYY\"},\"oops\":\"malicious\",\"p\":{\"p\":\""}`)},
-			},
-			expectedPolicy: Policy{
-				Consent: "1YYY\"},\"oops\":\"malicious\",\"p\":{\"p\":\"",
-			},
-		},
 		{
 			description: "GPP Success",
 			request: &openrtb2.BidRequest{
@@ -244,7 +219,7 @@ func TestReadFromRequest(t *testing.T) {
 		{
 			description: "Success",
 			request: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{Ext: json.RawMessage(`{"us_privacy":"ABC"}`)},
+				Regs: &openrtb2.Regs{USPrivacy: "ABC"},
 				Ext:  json.RawMessage(`{"prebid":{"nosale":["a", "b"]}}`),
 			},
 			expectedPolicy: Policy{
@@ -353,7 +328,7 @@ func TestWrite(t *testing.T) {
 			policy:      Policy{Consent: "anyConsent", NoSaleBidders: []string{"a", "b"}},
 			request:     &openrtb2.BidRequest{},
 			expected: &openrtb2.BidRequest{
-				Regs: &openrtb2.Regs{Ext: json.RawMessage(`{"us_privacy":"anyConsent"}`)},
+				Regs: &openrtb2.Regs{USPrivacy: "anyConsent"},
 				Ext:  json.RawMessage(`{"prebid":{"nosale":["a","b"]}}`),
 			},
 		},
diff --git a/privacy/gdpr/consentwriter.go b/privacy/gdpr/consentwriter.go
index 243a6cf79e9..8269352355d 100644
--- a/privacy/gdpr/consentwriter.go
+++ b/privacy/gdpr/consentwriter.go
@@ -2,13 +2,12 @@ package gdpr
 
 import (
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
 )
 
 // ConsentWriter implements the PolicyWriter interface for GDPR TCF.
 type ConsentWriter struct {
-	Consent    string
-	RegExtGDPR *int8
+	Consent string
+	GDPR    *int8
 }
 
 // Write mutates an OpenRTB bid request with the GDPR TCF consent.
@@ -16,26 +15,19 @@ func (c ConsentWriter) Write(req *openrtb2.BidRequest) error {
 	if req == nil {
 		return nil
 	}
-	reqWrap := &openrtb_ext.RequestWrapper{BidRequest: req}
 
-	if c.RegExtGDPR != nil {
-		if regsExt, err := reqWrap.GetRegExt(); err == nil {
-			regsExt.SetGDPR(c.RegExtGDPR)
-		} else {
-			return err
+	if c.GDPR != nil {
+		if req.Regs == nil {
+			req.Regs = &openrtb2.Regs{}
 		}
+		req.Regs.GDPR = c.GDPR
 	}
 
 	if c.Consent != "" {
-		if userExt, err := reqWrap.GetUserExt(); err == nil {
-			userExt.SetConsent(&c.Consent)
-		} else {
-			return err
+		if req.User == nil {
+			req.User = &openrtb2.User{}
 		}
-	}
-
-	if err := reqWrap.RebuildRequest(); err != nil {
-		return err
+		req.User.Consent = c.Consent
 	}
 
 	return nil
diff --git a/privacy/gdpr/consentwriter_test.go b/privacy/gdpr/consentwriter_test.go
index 47f24bc9ecc..436f46dd563 100644
--- a/privacy/gdpr/consentwriter_test.go
+++ b/privacy/gdpr/consentwriter_test.go
@@ -27,14 +27,14 @@ func TestConsentWriter(t *testing.T) {
 			consent:     "anyConsent",
 			request:     &openrtb2.BidRequest{},
 			expected: &openrtb2.BidRequest{User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent":"anyConsent"}`)}},
+				Consent: "anyConsent"}},
 		},
 		{
 			description: "Enabled With Nil Request User Ext Object",
 			consent:     "anyConsent",
 			request:     &openrtb2.BidRequest{User: &openrtb2.User{}},
 			expected: &openrtb2.BidRequest{User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent":"anyConsent"}`)}},
+				Consent: "anyConsent"}},
 		},
 		{
 			description: "Enabled With Existing Request User Ext Object - Doesn't Overwrite",
@@ -42,29 +42,25 @@ func TestConsentWriter(t *testing.T) {
 			request: &openrtb2.BidRequest{User: &openrtb2.User{
 				Ext: json.RawMessage(`{"existing":"any"}`)}},
 			expected: &openrtb2.BidRequest{User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent":"anyConsent","existing":"any"}`)}},
+				Consent: "anyConsent",
+				Ext:     json.RawMessage(`{"existing":"any"}`)}},
 		},
 		{
 			description: "Enabled With Existing Request User Ext Object - Overwrites",
 			consent:     "anyConsent",
 			request: &openrtb2.BidRequest{User: &openrtb2.User{
-				Ext: json.RawMessage(`{"existing":"any","consent":"toBeOverwritten"}`)}},
+				Consent: "toBeOverwritten",
+				Ext:     json.RawMessage(`{"existing":"any"}`)}},
 			expected: &openrtb2.BidRequest{User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent":"anyConsent","existing":"any"}`)}},
-		},
-		{
-			description: "Enabled With Existing Malformed Request User Ext Object",
-			consent:     "anyConsent",
-			request: &openrtb2.BidRequest{User: &openrtb2.User{
-				Ext: json.RawMessage(`malformed`)}},
-			expectedError: true,
+				Consent: "anyConsent",
+				Ext:     json.RawMessage(`{"existing":"any"}`)}},
 		},
 		{
 			description: "Injection Attack With Nil Request User Object",
 			consent:     "BONV8oqONXwgmADACHENAO7pqzAAppY\"},\"oops\":\"malicious\",\"p\":{\"p\":\"",
 			request:     &openrtb2.BidRequest{},
 			expected: &openrtb2.BidRequest{User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent":"BONV8oqONXwgmADACHENAO7pqzAAppY\"},\"oops\":\"malicious\",\"p\":{\"p\":\""}`),
+				Consent: "BONV8oqONXwgmADACHENAO7pqzAAppY\"},\"oops\":\"malicious\",\"p\":{\"p\":\"",
 			}},
 		},
 		{
@@ -72,7 +68,8 @@ func TestConsentWriter(t *testing.T) {
 			consent:     "BONV8oqONXwgmADACHENAO7pqzAAppY\"},\"oops\":\"malicious\",\"p\":{\"p\":\"",
 			request:     &openrtb2.BidRequest{User: &openrtb2.User{}},
 			expected: &openrtb2.BidRequest{User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent":"BONV8oqONXwgmADACHENAO7pqzAAppY\"},\"oops\":\"malicious\",\"p\":{\"p\":\""}`),
+				Consent: "BONV8oqONXwgmADACHENAO7pqzAAppY\"},\"oops\":\"malicious\",\"p\":{\"p\":\"",
+				Ext:     nil,
 			}},
 		},
 		{
@@ -82,7 +79,8 @@ func TestConsentWriter(t *testing.T) {
 				Ext: json.RawMessage(`{"existing":"any"}`),
 			}},
 			expected: &openrtb2.BidRequest{User: &openrtb2.User{
-				Ext: json.RawMessage(`{"consent":"BONV8oqONXwgmADACHENAO7pqzAAppY\"},\"oops\":\"malicious\",\"p\":{\"p\":\"","existing":"any"}`),
+				Consent: "BONV8oqONXwgmADACHENAO7pqzAAppY\"},\"oops\":\"malicious\",\"p\":{\"p\":\"",
+				Ext:     json.RawMessage(`{"existing":"any"}`),
 			}},
 		},
 	}
diff --git a/privacy/lmt/ios.go b/privacy/lmt/ios.go
index b7cb836cfe4..7778a02d0a5 100644
--- a/privacy/lmt/ios.go
+++ b/privacy/lmt/ios.go
@@ -4,8 +4,8 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/iosutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/iosutil"
 )
 
 var (
diff --git a/privacy/lmt/ios_test.go b/privacy/lmt/ios_test.go
index 83b59b287fd..42636759eb1 100644
--- a/privacy/lmt/ios_test.go
+++ b/privacy/lmt/ios_test.go
@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/util/iosutil"
+	"github.com/prebid/prebid-server/v3/util/iosutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/privacy/rule_condition_test.go b/privacy/rule_condition_test.go
index a0b3f855951..97bdeef35fd 100644
--- a/privacy/rule_condition_test.go
+++ b/privacy/rule_condition_test.go
@@ -4,7 +4,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/privacy/scrubber.go b/privacy/scrubber.go
index 7a67737f028..8f4a9b103f6 100644
--- a/privacy/scrubber.go
+++ b/privacy/scrubber.go
@@ -4,12 +4,12 @@ import (
 	"encoding/json"
 	"net"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/iputil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/iputil"
 )
 
 type IPConf struct {
diff --git a/privacy/scrubber_test.go b/privacy/scrubber_test.go
index d06e0c9842e..ccb065bccbc 100644
--- a/privacy/scrubber_test.go
+++ b/privacy/scrubber_test.go
@@ -5,8 +5,8 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/privacysandbox/topics.go b/privacysandbox/topics.go
index 4c129d0a535..3ed620b4bdd 100644
--- a/privacysandbox/topics.go
+++ b/privacysandbox/topics.go
@@ -8,8 +8,8 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type Topic struct {
diff --git a/privacysandbox/topics_test.go b/privacysandbox/topics_test.go
index 90a46f770c6..73d5ef0c12f 100644
--- a/privacysandbox/topics_test.go
+++ b/privacysandbox/topics_test.go
@@ -6,7 +6,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/router/admin.go b/router/admin.go
index 1be7c8656da..a90e5f233d9 100644
--- a/router/admin.go
+++ b/router/admin.go
@@ -5,9 +5,9 @@ import (
 	"net/http/pprof"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/endpoints"
-	"github.com/prebid/prebid-server/v2/version"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/endpoints"
+	"github.com/prebid/prebid-server/v3/version"
 )
 
 func Admin(rateConverter *currency.RateConverter, rateConverterFetchingInterval time.Duration) *http.ServeMux {
diff --git a/router/aspects/request_timeout_handler.go b/router/aspects/request_timeout_handler.go
index 7b94c96b11b..0a4d147d908 100644
--- a/router/aspects/request_timeout_handler.go
+++ b/router/aspects/request_timeout_handler.go
@@ -6,8 +6,8 @@ import (
 	"time"
 
 	"github.com/julienschmidt/httprouter"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
 )
 
 func QueuedRequestTimeout(f httprouter.Handle, reqTimeoutHeaders config.RequestTimeoutHeaders, metricsEngine metrics.MetricsEngine, requestType metrics.RequestType) httprouter.Handle {
diff --git a/router/aspects/request_timeout_handler_test.go b/router/aspects/request_timeout_handler_test.go
index 0d6f2cf8114..2ac8f36ae35 100644
--- a/router/aspects/request_timeout_handler_test.go
+++ b/router/aspects/request_timeout_handler_test.go
@@ -8,8 +8,8 @@ import (
 	"time"
 
 	"github.com/julienschmidt/httprouter"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
 
 	"github.com/stretchr/testify/assert"
 )
diff --git a/router/router.go b/router/router.go
index 867c856b06c..d412b5152e2 100644
--- a/router/router.go
+++ b/router/router.go
@@ -10,35 +10,36 @@ import (
 	"strings"
 	"time"
 
-	analyticsBuild "github.com/prebid/prebid-server/v2/analytics/build"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/currency"
-	"github.com/prebid/prebid-server/v2/endpoints"
-	"github.com/prebid/prebid-server/v2/endpoints/events"
-	infoEndpoints "github.com/prebid/prebid-server/v2/endpoints/info"
-	"github.com/prebid/prebid-server/v2/endpoints/openrtb2"
-	"github.com/prebid/prebid-server/v2/errortypes"
-	"github.com/prebid/prebid-server/v2/exchange"
-	"github.com/prebid/prebid-server/v2/experiment/adscert"
-	"github.com/prebid/prebid-server/v2/floors"
-	"github.com/prebid/prebid-server/v2/gdpr"
-	"github.com/prebid/prebid-server/v2/hooks"
-	"github.com/prebid/prebid-server/v2/macros"
-	"github.com/prebid/prebid-server/v2/metrics"
-	metricsConf "github.com/prebid/prebid-server/v2/metrics/config"
-	"github.com/prebid/prebid-server/v2/modules"
-	"github.com/prebid/prebid-server/v2/modules/moduledeps"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/ortb"
-	"github.com/prebid/prebid-server/v2/pbs"
-	pbc "github.com/prebid/prebid-server/v2/prebid_cache_client"
-	"github.com/prebid/prebid-server/v2/router/aspects"
-	"github.com/prebid/prebid-server/v2/server/ssl"
-	storedRequestsConf "github.com/prebid/prebid-server/v2/stored_requests/config"
-	"github.com/prebid/prebid-server/v2/usersync"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
-	"github.com/prebid/prebid-server/v2/util/uuidutil"
-	"github.com/prebid/prebid-server/v2/version"
+	openrtb2model "github.com/prebid/openrtb/v20/openrtb2"
+	analyticsBuild "github.com/prebid/prebid-server/v3/analytics/build"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/currency"
+	"github.com/prebid/prebid-server/v3/endpoints"
+	"github.com/prebid/prebid-server/v3/endpoints/events"
+	infoEndpoints "github.com/prebid/prebid-server/v3/endpoints/info"
+	"github.com/prebid/prebid-server/v3/endpoints/openrtb2"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/exchange"
+	"github.com/prebid/prebid-server/v3/experiment/adscert"
+	"github.com/prebid/prebid-server/v3/floors"
+	"github.com/prebid/prebid-server/v3/gdpr"
+	"github.com/prebid/prebid-server/v3/hooks"
+	"github.com/prebid/prebid-server/v3/macros"
+	"github.com/prebid/prebid-server/v3/metrics"
+	metricsConf "github.com/prebid/prebid-server/v3/metrics/config"
+	"github.com/prebid/prebid-server/v3/modules"
+	"github.com/prebid/prebid-server/v3/modules/moduledeps"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/ortb"
+	"github.com/prebid/prebid-server/v3/pbs"
+	pbc "github.com/prebid/prebid-server/v3/prebid_cache_client"
+	"github.com/prebid/prebid-server/v3/router/aspects"
+	"github.com/prebid/prebid-server/v3/server/ssl"
+	storedRequestsConf "github.com/prebid/prebid-server/v3/stored_requests/config"
+	"github.com/prebid/prebid-server/v3/usersync"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/uuidutil"
+	"github.com/prebid/prebid-server/v3/version"
 
 	_ "github.com/go-sql-driver/mysql"
 	"github.com/golang/glog"
@@ -57,11 +58,11 @@ import (
 //
 // This function stores the file contents in memory, and should not be used on large directories.
 // If the root directory, or any of the files in it, cannot be read, then the program will exit.
-func NewJsonDirectoryServer(schemaDirectory string, validator openrtb_ext.BidderParamValidator, aliases map[string]string) httprouter.Handle {
-	return newJsonDirectoryServer(schemaDirectory, validator, aliases, openrtb_ext.GetAliasBidderToParent())
+func NewJsonDirectoryServer(schemaDirectory string, validator openrtb_ext.BidderParamValidator) httprouter.Handle {
+	return newJsonDirectoryServer(schemaDirectory, validator, openrtb_ext.GetAliasBidderToParent())
 }
 
-func newJsonDirectoryServer(schemaDirectory string, validator openrtb_ext.BidderParamValidator, aliases map[string]string, yamlAliases map[openrtb_ext.BidderName]openrtb_ext.BidderName) httprouter.Handle {
+func newJsonDirectoryServer(schemaDirectory string, validator openrtb_ext.BidderParamValidator, aliases map[openrtb_ext.BidderName]openrtb_ext.BidderName) httprouter.Handle {
 	// Slurp the files into memory first, since they're small and it minimizes request latency.
 	files, err := os.ReadDir(schemaDirectory)
 	if err != nil {
@@ -81,19 +82,10 @@ func newJsonDirectoryServer(schemaDirectory string, validator openrtb_ext.Bidder
 	}
 
 	// Add in any aliases
-	for aliasName, parentBidder := range yamlAliases {
+	for aliasName, parentBidder := range aliases {
 		data[string(aliasName)] = json.RawMessage(validator.Schema(parentBidder))
 	}
 
-	// Add in any default aliases
-	for aliasName, bidderName := range aliases {
-		bidderData, ok := data[bidderName]
-		if !ok {
-			glog.Fatalf("Default alias (%s) exists referencing unknown bidder: %s", aliasName, bidderName)
-		}
-		data[aliasName] = bidderData
-	}
-
 	response, err := jsonutil.Marshal(data)
 	if err != nil {
 		glog.Fatalf("Failed to marshal bidder param JSON-schema: %v", err)
@@ -216,10 +208,7 @@ func New(cfg *config.Configuration, rateConvertor *currency.RateConverter) (r *R
 	activeBidders := exchange.GetActiveBidders(cfg.BidderInfos)
 	disabledBidders := exchange.GetDisabledBidderWarningMessages(cfg.BidderInfos)
 
-	defaultAliases, defReqJSON := readDefaultRequest(cfg.DefReqConfig)
-	if err := validateDefaultAliases(defaultAliases); err != nil {
-		return nil, err
-	}
+	defReqJSON := readDefaultRequest(cfg.DefReqConfig)
 
 	gvlVendorIDs := cfg.BidderInfos.ToGVLVendorIDMap()
 	vendorListFetcher := gdpr.NewVendorListFetcher(context.Background(), cfg.GDPR, generalHttpClient, gdpr.VendorListURLMaker)
@@ -269,9 +258,9 @@ func New(cfg *config.Configuration, rateConvertor *currency.RateConverter) (r *R
 	r.POST("/openrtb2/auction", openrtbEndpoint)
 	r.POST("/openrtb2/video", videoEndpoint)
 	r.GET("/openrtb2/amp", ampEndpoint)
-	r.GET("/info/bidders", infoEndpoints.NewBiddersEndpoint(cfg.BidderInfos, defaultAliases))
-	r.GET("/info/bidders/:bidderName", infoEndpoints.NewBiddersDetailEndpoint(cfg.BidderInfos, defaultAliases))
-	r.GET("/bidders/params", NewJsonDirectoryServer(schemaDirectory, paramsValidator, defaultAliases))
+	r.GET("/info/bidders", infoEndpoints.NewBiddersEndpoint(cfg.BidderInfos))
+	r.GET("/info/bidders/:bidderName", infoEndpoints.NewBiddersDetailEndpoint(cfg.BidderInfos))
+	r.GET("/bidders/params", NewJsonDirectoryServer(schemaDirectory, paramsValidator))
 	r.POST("/cookie_sync", endpoints.NewCookieSyncEndpoint(syncersByBidder, cfg, gdprPermsBuilder, tcf2CfgBuilder, r.MetricsEngine, analyticsRunner, accounts, activeBidders).Handle)
 	r.GET("/status", endpoints.NewStatusEndpoint(cfg.StatusResponse))
 	r.GET("/", serveIndex)
@@ -362,56 +351,31 @@ func SupportCORS(handler http.Handler) http.Handler {
 	return c.Handler(handler)
 }
 
-type defReq struct {
-	Ext defExt `json:"ext"`
-}
-type defExt struct {
-	Prebid defaultAliases `json:"prebid"`
-}
-type defaultAliases struct {
-	Aliases map[string]string `json:"aliases"`
-}
-
-func readDefaultRequest(defReqConfig config.DefReqConfig) (map[string]string, []byte) {
-	defReq := &defReq{}
-	aliases := make(map[string]string)
-	if defReqConfig.Type == "file" {
-		if len(defReqConfig.FileSystem.FileName) == 0 {
-			return aliases, []byte{}
-		}
-		defReqJSON, err := os.ReadFile(defReqConfig.FileSystem.FileName)
-		if err != nil {
-			glog.Fatalf("error reading aliases from file %s: %v", defReqConfig.FileSystem.FileName, err)
-			return aliases, []byte{}
-		}
-
-		if err := jsonutil.UnmarshalValid(defReqJSON, defReq); err != nil {
-			// we might not have aliases defined, but will at least show that the JSON file is parsable.
-			glog.Fatalf("error parsing alias json in file %s: %v", defReqConfig.FileSystem.FileName, err)
-			return aliases, []byte{}
-		}
-
-		// Read in the alias map if we want to populate the info endpoints with aliases.
-		if defReqConfig.AliasInfo {
-			aliases = defReq.Ext.Prebid.Aliases
-		}
-		return aliases, defReqJSON
+func readDefaultRequest(defReqConfig config.DefReqConfig) []byte {
+	switch defReqConfig.Type {
+	case "file":
+		return readDefaultRequestFromFile(defReqConfig)
+	default:
+		return []byte{}
 	}
-	return aliases, []byte{}
 }
 
-func validateDefaultAliases(aliases map[string]string) error {
-	var errs []error
+func readDefaultRequestFromFile(defReqConfig config.DefReqConfig) []byte {
+	if len(defReqConfig.FileSystem.FileName) == 0 {
+		return []byte{}
+	}
 
-	for alias := range aliases {
-		if openrtb_ext.IsBidderNameReserved(alias) {
-			errs = append(errs, fmt.Errorf("alias %s is a reserved bidder name and cannot be used", alias))
-		}
+	defaultRequestJSON, err := os.ReadFile(defReqConfig.FileSystem.FileName)
+	if err != nil {
+		glog.Fatalf("error reading default request from file %s: %v", defReqConfig.FileSystem.FileName, err)
+		return []byte{}
 	}
 
-	if len(errs) > 0 {
-		return errortypes.NewAggregateError("default request alias errors", errs)
+	// validate json is valid
+	if err := jsonutil.UnmarshalValid(defaultRequestJSON, &openrtb2model.BidRequest{}); err != nil {
+		glog.Fatalf("error parsing default request from file %s: %v", defReqConfig.FileSystem.FileName, err)
+		return []byte{}
 	}
 
-	return nil
+	return defaultRequestJSON
 }
diff --git a/router/router_test.go b/router/router_test.go
index 866a8440f3f..08d7468446e 100644
--- a/router/router_test.go
+++ b/router/router_test.go
@@ -8,9 +8,9 @@ import (
 	"testing"
 
 	jsoniter "github.com/json-iterator/go"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/stretchr/testify/assert"
 )
@@ -44,9 +44,8 @@ func ensureHasKey(t *testing.T, data map[string]json.RawMessage, key string) {
 }
 
 func TestNewJsonDirectoryServer(t *testing.T) {
-	defaultAlias := map[string]string{"aliastest": "appnexus"}
-	yamlAlias := map[openrtb_ext.BidderName]openrtb_ext.BidderName{openrtb_ext.BidderName("alias"): openrtb_ext.BidderName("parentAlias")}
-	handler := newJsonDirectoryServer("../static/bidder-params", &testValidator{}, defaultAlias, yamlAlias)
+	alias := map[openrtb_ext.BidderName]openrtb_ext.BidderName{openrtb_ext.BidderName("alias"): openrtb_ext.BidderName("parentAlias")}
+	handler := newJsonDirectoryServer("../static/bidder-params", &testValidator{}, alias)
 	recorder := httptest.NewRecorder()
 	request, _ := http.NewRequest("GET", "/whatever", nil)
 	handler(recorder, request, nil)
@@ -66,7 +65,6 @@ func TestNewJsonDirectoryServer(t *testing.T) {
 		}
 	}
 
-	ensureHasKey(t, data, "aliastest")
 	ensureHasKey(t, data, "alias")
 }
 
@@ -211,77 +209,6 @@ func TestNoCache(t *testing.T) {
 	}
 }
 
-var testDefReqConfig = config.DefReqConfig{
-	Type: "file",
-	FileSystem: config.DefReqFiles{
-		FileName: "test_aliases.json",
-	},
-	AliasInfo: true,
-}
-
-func TestLoadDefaultAliases(t *testing.T) {
-	defAliases, aliasJSON := readDefaultRequest(testDefReqConfig)
-	expectedJSON := []byte(`{"ext":{"prebid":{"aliases": {"test1": "appnexus", "test2": "rubicon", "test3": "openx"}}}}`)
-	expectedAliases := map[string]string{
-		"test1": "appnexus",
-		"test2": "rubicon",
-		"test3": "openx",
-	}
-
-	assert.JSONEq(t, string(expectedJSON), string(aliasJSON))
-	assert.Equal(t, expectedAliases, defAliases)
-}
-
-func TestLoadDefaultAliasesNoInfo(t *testing.T) {
-	noInfoConfig := testDefReqConfig
-	noInfoConfig.AliasInfo = false
-	defAliases, aliasJSON := readDefaultRequest(noInfoConfig)
-	expectedJSON := []byte(`{"ext":{"prebid":{"aliases": {"test1": "appnexus", "test2": "rubicon", "test3": "openx"}}}}`)
-	expectedAliases := map[string]string{}
-
-	assert.JSONEq(t, string(expectedJSON), string(aliasJSON))
-	assert.Equal(t, expectedAliases, defAliases)
-}
-
-func TestValidateDefaultAliases(t *testing.T) {
-	var testCases = []struct {
-		description   string
-		givenAliases  map[string]string
-		expectedError string
-	}{
-		{
-			description:   "None",
-			givenAliases:  map[string]string{},
-			expectedError: "",
-		},
-		{
-			description:   "Valid",
-			givenAliases:  map[string]string{"aAlias": "a"},
-			expectedError: "",
-		},
-		{
-			description:   "Invalid",
-			givenAliases:  map[string]string{"all": "a"},
-			expectedError: "default request alias errors (1 error):\n  1: alias all is a reserved bidder name and cannot be used\n",
-		},
-		{
-			description:   "Mixed",
-			givenAliases:  map[string]string{"aAlias": "a", "all": "a"},
-			expectedError: "default request alias errors (1 error):\n  1: alias all is a reserved bidder name and cannot be used\n",
-		},
-	}
-
-	for _, test := range testCases {
-		err := validateDefaultAliases(test.givenAliases)
-
-		if test.expectedError == "" {
-			assert.NoError(t, err, test.description)
-		} else {
-			assert.EqualError(t, err, test.expectedError, test.description)
-		}
-	}
-}
-
 func TestBidderParamsCompactedOutput(t *testing.T) {
 	expectedFormattedResponse := `{"appnexus":{"$schema":"http://json-schema.org/draft-04/schema#","title":"Sample schema","description":"A sample schema to test the bidder/params endpoint","type":"object","properties":{"integer_param":{"type":"integer","minimum":1,"description":"A customer id"},"string_param_1":{"type":"string","minLength":1,"description":"Text with blanks in between"},"string_param_2":{"type":"string","minLength":1,"description":"Text_with_no_blanks_in_between"}},"required":["integer_param","string_param_2"]}}`
 
@@ -290,7 +217,7 @@ func TestBidderParamsCompactedOutput(t *testing.T) {
 	paramsValidator, err := openrtb_ext.NewBidderParamsValidator(inSchemaDirectory)
 	assert.NoError(t, err, "Error initialing validator")
 
-	handler := newJsonDirectoryServer(inSchemaDirectory, paramsValidator, nil, nil)
+	handler := newJsonDirectoryServer(inSchemaDirectory, paramsValidator, nil)
 	recorder := httptest.NewRecorder()
 	request, err := http.NewRequest("GET", "/bidder/params", nil)
 	assert.NoError(t, err, "Error creating request")
diff --git a/router/test_aliases.json b/router/test_aliases.json
deleted file mode 100644
index e1be6455664..00000000000
--- a/router/test_aliases.json
+++ /dev/null
@@ -1,12 +0,0 @@
- 
-{ 
-    "ext": {
-        "prebid": {
-            "aliases": {
-                "test1": "appnexus",
-                "test2": "rubicon",
-                "test3": "openx"
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/sample/001_banner/pbjs.html b/sample/001_banner/pbjs.html
index b02ba95b995..af6ad643eec 100644
--- a/sample/001_banner/pbjs.html
+++ b/sample/001_banner/pbjs.html
@@ -12,8 +12,8 @@
             border-style: solid;
         }
     </style>
-    <script src="//cdn.jsdelivr.net/npm/prebid.js@latest/dist/not-for-prod/prebid.js"></script>
-    <script>
+    <script src="//cdn.jsdelivr.net/npm/prebid.js@latest/dist/not-for-prod/prebid.js" defer></script>
+    <script defer>
 
         var sizes = [
             [300, 250],
@@ -77,7 +77,7 @@
         }
 
     </script>
-    <script>
+    <script defer>
         var pbjs = pbjs || {};
         pbjs.que = pbjs.que || [];
 
diff --git a/schain/schain.go b/schain/schain.go
index 088e5a6099f..cdd1e144498 100644
--- a/schain/schain.go
+++ b/schain/schain.go
@@ -5,7 +5,7 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // BidderToPrebidSChains organizes the ORTB 2.5 multiple root schain nodes into a map of schain nodes by bidder
diff --git a/schain/schain_test.go b/schain/schain_test.go
index e35396bf2bd..f112c9ec7ed 100644
--- a/schain/schain_test.go
+++ b/schain/schain_test.go
@@ -4,7 +4,7 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/schain/schainwriter.go b/schain/schainwriter.go
index b7ff0b52e95..37b62c993f2 100644
--- a/schain/schainwriter.go
+++ b/schain/schainwriter.go
@@ -2,8 +2,7 @@ package schain
 
 import (
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // NewSChainWriter creates an ORTB 2.5 schain writer instance
@@ -34,9 +33,9 @@ type SChainWriter struct {
 // Write selects an schain from the multi-schain ORTB 2.5 location (req.ext.prebid.schains) for the specified bidder
 // and copies it to the ORTB 2.5 location (req.source.ext). If no schain exists for the bidder in the multi-schain
 // location and no wildcard schain exists, the request is not modified.
-func (w SChainWriter) Write(req *openrtb2.BidRequest, bidder string) {
+func (w SChainWriter) Write(reqWrapper *openrtb_ext.RequestWrapper, bidder string) {
 	const sChainWildCard = "*"
-	var selectedSChain *openrtb2.SupplyChain
+	var selectedSChain openrtb2.SupplyChain
 
 	wildCardSChain := w.sChainsByBidder[sChainWildCard]
 	bidderSChain := w.sChainsByBidder[bidder]
@@ -46,32 +45,27 @@ func (w SChainWriter) Write(req *openrtb2.BidRequest, bidder string) {
 		return
 	}
 
-	selectedSChain = &openrtb2.SupplyChain{Ver: "1.0"}
+	selectedSChain = openrtb2.SupplyChain{Ver: "1.0"}
 
 	if bidderSChain != nil {
-		selectedSChain = bidderSChain
+		selectedSChain = *bidderSChain
 	} else if wildCardSChain != nil {
-		selectedSChain = wildCardSChain
+		selectedSChain = *wildCardSChain
 	}
 
-	schain := openrtb_ext.ExtRequestPrebidSChain{
-		SChain: *selectedSChain,
-	}
-
-	if req.Source == nil {
-		req.Source = &openrtb2.Source{}
+	if reqWrapper.Source == nil {
+		reqWrapper.Source = &openrtb2.Source{}
 	} else {
-		sourceCopy := *req.Source
-		req.Source = &sourceCopy
+		// Copy Source to avoid shared memory issues.
+		// Source may be modified differently for different bidders in request
+		sourceCopy := *reqWrapper.Source
+		reqWrapper.Source = &sourceCopy
 	}
 
-	if w.hostSChainNode != nil {
-		schain.SChain.Nodes = append(schain.SChain.Nodes, *w.hostSChainNode)
-	}
+	reqWrapper.Source.SChain = &selectedSChain
 
-	sourceExt, err := jsonutil.Marshal(schain)
-	if err == nil {
-		req.Source.Ext = sourceExt
+	if w.hostSChainNode != nil {
+		reqWrapper.Source.SChain.Nodes = append(reqWrapper.Source.SChain.Nodes, *w.hostSChainNode)
 	}
 }
 
diff --git a/schain/schainwriter_test.go b/schain/schainwriter_test.go
index d9b1358ffe6..69fda959078 100644
--- a/schain/schainwriter_test.go
+++ b/schain/schainwriter_test.go
@@ -4,8 +4,8 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/stretchr/testify/assert"
@@ -17,206 +17,348 @@ func TestSChainWriter(t *testing.T) {
 	const seller2SChain string = `"schain":{"complete":2,"nodes":[{"asi":"directseller2.com","sid":"00002","rid":"BidRequest2","hp":2}],"ver":"2.0"}`
 	const seller3SChain string = `"schain":{"complete":3,"nodes":[{"asi":"directseller3.com","sid":"00003","rid":"BidRequest3","hp":3}],"ver":"3.0"}`
 	const sellerWildCardSChain string = `"schain":{"complete":1,"nodes":[{"asi":"wildcard1.com","sid":"wildcard1","rid":"WildcardReq1","hp":1}],"ver":"1.0"}`
-	const hostNode string = `{"asi":"pbshostcompany.com","sid":"00001","rid":"BidRequest","hp":1}`
 	const seller1Node string = `{"asi":"directseller1.com","sid":"00001","rid":"BidRequest1","hp":1}`
 
 	tests := []struct {
 		description    string
-		giveRequest    openrtb2.BidRequest
+		giveRequest    *openrtb_ext.RequestWrapper
 		giveBidder     string
 		giveHostSChain *openrtb2.SupplyChainNode
-		wantRequest    openrtb2.BidRequest
+		wantRequest    *openrtb_ext.RequestWrapper
 		wantError      bool
 	}{
 		{
 			description: "nil source, nil ext.prebid.schains and empty host schain",
-			giveRequest: openrtb2.BidRequest{
-				Ext:    nil,
-				Source: nil,
+			giveRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext:    nil,
+					Source: nil,
+				},
 			},
+
 			giveBidder:     "appnexus",
 			giveHostSChain: nil,
-			wantRequest: openrtb2.BidRequest{
-				Ext:    nil,
-				Source: nil,
+			wantRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext:    nil,
+					Source: nil,
+				},
 			},
 		},
 		{
-			description: "Use source schain -- no bidder schain or wildcard schain in nil ext.prebid.schains",
-			giveRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{` + seller2SChain + `}`),
+			description: "Use source schain -- no bidder schain or wildcard schain in nil ext.prebid.schains - so source.schain is set and unmodified",
+			giveRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{}`),
+					Source: &openrtb2.Source{
+						SChain: &openrtb2.SupplyChain{
+							Ver: "1.1",
+						},
+					},
 				},
 			},
 			giveBidder: "appnexus",
-			wantRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{` + seller2SChain + `}`),
+			wantRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{}`),
+					Source: &openrtb2.Source{
+						SChain: &openrtb2.SupplyChain{
+							Ver: "1.1",
+						},
+					},
 				},
 			},
 		},
 		{
-			description: "Use source schain -- no bidder schain or wildcard schain in not nil ext.prebid.schains",
-			giveRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{` + seller2SChain + `}`),
+			description: "Use source schain -- no bidder schain or wildcard schain in not nil ext.prebid.schains - so source.schain is set and unmodified",
+			giveRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
+					Source: &openrtb2.Source{
+						SChain: &openrtb2.SupplyChain{
+							Ver: "1.1",
+						},
+						Ext: json.RawMessage(`{"some":"data"}`),
+					},
 				},
 			},
 			giveBidder: "rubicon",
-			wantRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{` + seller2SChain + `}`),
+			wantRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
+					Source: &openrtb2.Source{
+						SChain: &openrtb2.SupplyChain{
+							Ver: "1.1",
+						},
+						Ext: json.RawMessage(`{"some":"data"}`),
+					},
 				},
 			},
 		},
 		{
-			description: "Use schain for bidder in ext.prebid.schains; ensure other ext.source field values are retained.",
-			giveRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
-				Source: &openrtb2.Source{
-					FD:     openrtb2.Int8Ptr(1),
-					TID:    "tid data",
-					PChain: "pchain data",
-					Ext:    json.RawMessage(`{` + seller2SChain + `}`),
+			description: "Use schain for bidder in ext.prebid.schains; ensure other source field values are retained.",
+			giveRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
+					Source: &openrtb2.Source{
+						FD:     openrtb2.Int8Ptr(1),
+						TID:    "tid data",
+						PChain: "pchain data",
+						Ext:    json.RawMessage(`{"some":"data"}`),
+					},
 				},
 			},
 			giveBidder: "appnexus",
-			wantRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
-				Source: &openrtb2.Source{
-					FD:     openrtb2.Int8Ptr(1),
-					TID:    "tid data",
-					PChain: "pchain data",
-					Ext:    json.RawMessage(`{` + seller1SChain + `}`),
+			wantRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
+					Source: &openrtb2.Source{
+						FD:     openrtb2.Int8Ptr(1),
+						TID:    "tid data",
+						PChain: "pchain data",
+						SChain: &openrtb2.SupplyChain{
+							Complete: 1,
+							Ver:      "1.0",
+							Ext:      nil,
+							Nodes: []openrtb2.SupplyChainNode{
+								{
+									ASI: "directseller1.com",
+									SID: "00001",
+									RID: "BidRequest1",
+									HP:  openrtb2.Int8Ptr(1),
+									Ext: nil,
+								},
+							},
+						},
+						Ext: json.RawMessage(`{"some":"data"}`),
+					},
 				},
 			},
 		},
 		{
 			description: "Use schain for bidder in ext.prebid.schains, nil req.source ",
-			giveRequest: openrtb2.BidRequest{
-				Ext:    json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
-				Source: nil,
+			giveRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext:    json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
+					Source: nil,
+				},
 			},
 			giveBidder: "appnexus",
-			wantRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{` + seller1SChain + `}`),
+			wantRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `}]}}`),
+					Source: &openrtb2.Source{
+						SChain: &openrtb2.SupplyChain{
+							Complete: 1,
+							Ver:      "1.0",
+							Ext:      nil,
+							Nodes: []openrtb2.SupplyChainNode{
+								{
+									ASI: "directseller1.com",
+									SID: "00001",
+									RID: "BidRequest1",
+									HP:  openrtb2.Int8Ptr(1),
+									Ext: nil,
+								},
+							},
+						},
+						Ext: nil,
+					},
 				},
 			},
 		},
 		{
 			description: "Use wildcard schain in ext.prebid.schains.",
-			giveRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["*"],` + sellerWildCardSChain + `}]}}`),
-				Source: &openrtb2.Source{
-					Ext: nil,
+			giveRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["*"],` + sellerWildCardSChain + `}]}}`),
+					Source: &openrtb2.Source{
+						Ext: nil,
+					},
 				},
 			},
 			giveBidder: "appnexus",
-			wantRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["*"],` + sellerWildCardSChain + `}]}}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{` + sellerWildCardSChain + `}`),
+			wantRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["*"],` + sellerWildCardSChain + `}]}}`),
+					Source: &openrtb2.Source{
+						SChain: &openrtb2.SupplyChain{
+							Complete: 1,
+							Ver:      "1.0",
+							Ext:      nil,
+							Nodes: []openrtb2.SupplyChainNode{
+								{
+									ASI: "wildcard1.com",
+									SID: "wildcard1",
+									RID: "WildcardReq1",
+									HP:  openrtb2.Int8Ptr(1),
+									Ext: nil,
+								},
+							},
+						},
+						Ext: nil,
+					},
 				},
 			},
 		},
 		{
 			description: "Use schain for bidder in ext.prebid.schains instead of wildcard.",
-			giveRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `},{"bidders":["*"],` + sellerWildCardSChain + `}]}}`),
-				Source: &openrtb2.Source{
-					Ext: nil,
+			giveRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `},{"bidders":["*"],` + sellerWildCardSChain + `}]}}`),
+					Source: &openrtb2.Source{
+						Ext: nil,
+					},
 				},
 			},
 			giveBidder: "appnexus",
-			wantRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `},{"bidders":["*"],` + sellerWildCardSChain + `}]}}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{` + seller1SChain + `}`),
+			wantRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `},{"bidders":["*"],` + sellerWildCardSChain + `}]}}`),
+					Source: &openrtb2.Source{
+						SChain: &openrtb2.SupplyChain{
+							Complete: 1,
+							Ver:      "1.0",
+							Ext:      nil,
+							Nodes: []openrtb2.SupplyChainNode{
+								{
+									ASI: "directseller1.com",
+									SID: "00001",
+									RID: "BidRequest1",
+									HP:  openrtb2.Int8Ptr(1),
+									Ext: nil,
+								},
+							},
+						},
+						Ext: nil,
+					},
 				},
 			},
 		},
 		{
 			description: "Use source schain -- multiple (two) bidder schains in ext.prebid.schains.",
-			giveRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `},{"bidders":["appnexus"],` + seller2SChain + `}]}}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{` + seller3SChain + `}`),
+			giveRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `},{"bidders":["appnexus"],` + seller2SChain + `}]}}`),
+					Source: &openrtb2.Source{
+						Ext: json.RawMessage(`{` + seller3SChain + `}`),
+					},
 				},
 			},
 			giveBidder: "appnexus",
-			wantRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `},{"bidders":["appnexus"],` + seller2SChain + `}]}}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{` + seller3SChain + `}`),
+			wantRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["appnexus"],` + seller1SChain + `},{"bidders":["appnexus"],` + seller2SChain + `}]}}`),
+					Source: &openrtb2.Source{
+						Ext: json.RawMessage(`{` + seller3SChain + `}`),
+					},
 				},
 			},
 			wantError: true,
 		},
 		{
 			description: "Schain in request, host schain defined, source.ext for bidder request should update with appended host schain",
-			giveRequest: openrtb2.BidRequest{
-				Ext:    json.RawMessage(`{"prebid":{"schains":[{"bidders":["testbidder"],"schain":{"complete":1,"nodes":[` + seller1Node + `],"ver":"1.0"}}]}}`),
-				Source: nil,
+			giveRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext:    json.RawMessage(`{"prebid":{"schains":[{"bidders":["testbidder"],"schain":{"complete":1,"nodes":[` + seller1Node + `],"ver":"1.0"}}]}}`),
+					Source: nil,
+				},
 			},
 			giveBidder: "testbidder",
 			giveHostSChain: &openrtb2.SupplyChainNode{
 				ASI: "pbshostcompany.com", SID: "00001", RID: "BidRequest", HP: openrtb2.Int8Ptr(1),
 			},
-			wantRequest: openrtb2.BidRequest{
-				Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["testbidder"],"schain":{"complete":1,"nodes":[` + seller1Node + `],"ver":"1.0"}}]}}`),
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{"schain":{"complete":1,"nodes":[` + seller1Node + `,` + hostNode + `],"ver":"1.0"}}`),
+			wantRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: json.RawMessage(`{"prebid":{"schains":[{"bidders":["testbidder"],"schain":{"complete":1,"nodes":[` + seller1Node + `],"ver":"1.0"}}]}}`),
+					Source: &openrtb2.Source{
+						SChain: &openrtb2.SupplyChain{
+							Complete: 1,
+							Ver:      "1.0",
+							Ext:      nil,
+							Nodes: []openrtb2.SupplyChainNode{
+								{
+									ASI: "directseller1.com",
+									SID: "00001",
+									RID: "BidRequest1",
+									HP:  openrtb2.Int8Ptr(1),
+									Ext: nil,
+								},
+								{
+									ASI: "pbshostcompany.com",
+									SID: "00001",
+									RID: "BidRequest",
+									HP:  openrtb2.Int8Ptr(1),
+									Ext: nil,
+								},
+							},
+						},
+						Ext: nil,
+					},
 				},
 			},
 		},
 		{
 			description: "No Schain in request, host schain defined, source.ext for bidder request should have just the host schain",
-			giveRequest: openrtb2.BidRequest{
-				Ext:    nil,
-				Source: nil,
+			giveRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext:    nil,
+					Source: nil,
+				},
 			},
 			giveBidder: "testbidder",
 			giveHostSChain: &openrtb2.SupplyChainNode{
 				ASI: "pbshostcompany.com", SID: "00001", RID: "BidRequest", HP: openrtb2.Int8Ptr(1),
 			},
-			wantRequest: openrtb2.BidRequest{
-				Ext: nil,
-				Source: &openrtb2.Source{
-					Ext: json.RawMessage(`{"schain":{"complete":0,"nodes":[` + hostNode + `],"ver":"1.0"}}`),
+			wantRequest: &openrtb_ext.RequestWrapper{
+				BidRequest: &openrtb2.BidRequest{
+					Ext: nil,
+					Source: &openrtb2.Source{
+						SChain: &openrtb2.SupplyChain{
+							Ver: "1.0",
+							Ext: nil,
+							Nodes: []openrtb2.SupplyChainNode{
+								{
+									ASI: "pbshostcompany.com",
+									SID: "00001",
+									RID: "BidRequest",
+									HP:  openrtb2.Int8Ptr(1),
+									Ext: nil,
+								},
+							},
+						},
+						Ext: nil,
+					},
 				},
 			},
 		},
 	}
 
 	for _, tt := range tests {
-		// unmarshal ext to get schains object needed to initialize writer
-		var reqExt *openrtb_ext.ExtRequest
-		if tt.giveRequest.Ext != nil {
-			reqExt = &openrtb_ext.ExtRequest{}
-			err := jsonutil.UnmarshalValid(tt.giveRequest.Ext, reqExt)
-			if err != nil {
-				t.Error("Unable to unmarshal request.ext")
+		t.Run(tt.description, func(t *testing.T) {
+			// unmarshal ext to get schains object needed to initialize writer
+			var reqExt *openrtb_ext.ExtRequest
+			if tt.giveRequest.Ext != nil {
+				reqExt = &openrtb_ext.ExtRequest{}
+				err := jsonutil.UnmarshalValid(tt.giveRequest.Ext, reqExt)
+				if err != nil {
+					t.Error("Unable to unmarshal request.ext")
+				}
 			}
-		}
 
-		writer, err := NewSChainWriter(reqExt, tt.giveHostSChain)
+			writer, err := NewSChainWriter(reqExt, tt.giveHostSChain)
 
-		if tt.wantError {
-			assert.NotNil(t, err)
-			assert.Nil(t, writer)
-		} else {
-			assert.Nil(t, err)
-			assert.NotNil(t, writer)
+			if tt.wantError {
+				assert.NotNil(t, err)
+				assert.Nil(t, writer)
+			} else {
+				assert.Nil(t, err)
+				assert.NotNil(t, writer)
 
-			writer.Write(&tt.giveRequest, tt.giveBidder)
+				writer.Write(tt.giveRequest, tt.giveBidder)
 
-			assert.Equal(t, tt.wantRequest, tt.giveRequest, tt.description)
-		}
+				assert.Equal(t, tt.wantRequest, tt.giveRequest, tt.description)
+			}
+		})
 	}
 }
diff --git a/server/listener.go b/server/listener.go
index a10aef6441e..3bc1f2e66fe 100644
--- a/server/listener.go
+++ b/server/listener.go
@@ -6,7 +6,7 @@ import (
 	"time"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/metrics"
+	"github.com/prebid/prebid-server/v3/metrics"
 )
 
 // monitorableListener tracks any opened connections in the metrics.
diff --git a/server/listener_test.go b/server/listener_test.go
index c729f2ba55e..293890a1e13 100644
--- a/server/listener_test.go
+++ b/server/listener_test.go
@@ -6,8 +6,8 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
 	gometrics "github.com/rcrowley/go-metrics"
 )
 
diff --git a/server/prometheus.go b/server/prometheus.go
index 8b841f5151a..98409e6a588 100644
--- a/server/prometheus.go
+++ b/server/prometheus.go
@@ -7,8 +7,8 @@ import (
 	"github.com/golang/glog"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 
-	"github.com/prebid/prebid-server/v2/config"
-	metricsconfig "github.com/prebid/prebid-server/v2/metrics/config"
+	"github.com/prebid/prebid-server/v3/config"
+	metricsconfig "github.com/prebid/prebid-server/v3/metrics/config"
 )
 
 func newPrometheusServer(cfg *config.Configuration, metrics *metricsconfig.DetailedMetricsEngine) *http.Server {
diff --git a/server/server.go b/server/server.go
index 4993e996414..9461f3f451d 100644
--- a/server/server.go
+++ b/server/server.go
@@ -13,9 +13,9 @@ import (
 
 	"github.com/NYTimes/gziphandler"
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	metricsconfig "github.com/prebid/prebid-server/v2/metrics/config"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	metricsconfig "github.com/prebid/prebid-server/v3/metrics/config"
 )
 
 // Listen blocks forever, serving PBS requests on the given port. This will block forever, until the process is shut down.
diff --git a/server/server_test.go b/server/server_test.go
index 7f81f781b8e..6d2a3335e3a 100644
--- a/server/server_test.go
+++ b/server/server_test.go
@@ -9,8 +9,8 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	metricsconfig "github.com/prebid/prebid-server/v2/metrics/config"
+	"github.com/prebid/prebid-server/v3/config"
+	metricsconfig "github.com/prebid/prebid-server/v3/metrics/config"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
diff --git a/static/bidder-info/bluesea.yaml b/static/bidder-info/bluesea.yaml
index 14667cafd6e..a9a5ca203d6 100644
--- a/static/bidder-info/bluesea.yaml
+++ b/static/bidder-info/bluesea.yaml
@@ -3,9 +3,15 @@ maintainer:
   email: prebid@blueseasx.com
 endpointCompression: gzip
 modifyingVastXmlAllowed: true
+gvlVendorID: 1294
 capabilities:
   app:
     mediaTypes:
       - banner
       - native
       - video
+  site:
+    mediaTypes:
+      - banner
+      - native
+      - video
diff --git a/static/bidder-info/gumgum.yaml b/static/bidder-info/gumgum.yaml
index f7e782e40df..945acf7ca5c 100644
--- a/static/bidder-info/gumgum.yaml
+++ b/static/bidder-info/gumgum.yaml
@@ -12,3 +12,6 @@ userSync:
     url: "https://rtb.gumgum.com/usync/prbds2s?gdpr={{.GDPR}}&gdpr_consent={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&r={{.RedirectURL}}"
     userMacro: ""
     # gumgum appends the user id to end of the redirect url and does not utilize a macro
+openrtb:
+  version: 2.6
+  gpp-supported: true
\ No newline at end of file
diff --git a/static/bidder-info/missena.yaml b/static/bidder-info/missena.yaml
new file mode 100644
index 00000000000..47f089b9c5a
--- /dev/null
+++ b/static/bidder-info/missena.yaml
@@ -0,0 +1,16 @@
+endpoint: https://bid.missena.io/
+maintainer:
+  email: prebid@missena.com
+gvlVendorID: 687
+modifyingVastXmlAllowed: true
+capabilities:
+  app:
+    mediaTypes:
+      - banner
+  site:
+    mediaTypes:
+      - banner
+userSync:
+  iframe:
+    url: https://sync.missena.io/iframe?gdpr={{.GDPR}}&consent={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&redirect={{.RedirectURL}}
+    userMacro: $UID
\ No newline at end of file
diff --git a/static/bidder-info/sonobi.yaml b/static/bidder-info/sonobi.yaml
index 135bdacfe93..422ba610a6f 100644
--- a/static/bidder-info/sonobi.yaml
+++ b/static/bidder-info/sonobi.yaml
@@ -7,11 +7,16 @@ capabilities:
     mediaTypes:
       - banner
       - video
+      - native
   app:
     mediaTypes:
       - banner
       - video
+      - native
 userSync:
+  iframe:
+    url: "https://sync.go.sonobi.com/uc.html?gdpr={{.GDPR}}&gdpr_consent={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&loc={{.RedirectURL}}"
+    userMacro: "[UID]"
   redirect:
     url: "https://sync.go.sonobi.com/us.gif?gdpr={{.GDPR}}&gdpr_consent={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&loc={{.RedirectURL}}"
     userMacro: "[UID]"
diff --git a/static/bidder-info/sovrn.yaml b/static/bidder-info/sovrn.yaml
index 62d74152b0b..fad1850d4b3 100644
--- a/static/bidder-info/sovrn.yaml
+++ b/static/bidder-info/sovrn.yaml
@@ -1,6 +1,7 @@
 endpoint: "http://pbs.lijit.com/rtb/bid?src=prebid_server"
 maintainer:
   email: "sovrnoss@sovrn.com"
+endpointCompression: gzip
 gvlVendorID: 13
 modifyingVastXmlAllowed: true
 capabilities:
diff --git a/static/bidder-info/triplelift.yaml b/static/bidder-info/triplelift.yaml
index 605bcc71e6e..79a8951680f 100644
--- a/static/bidder-info/triplelift.yaml
+++ b/static/bidder-info/triplelift.yaml
@@ -12,9 +12,10 @@ capabilities:
       - banner
       - video
 userSync:
-  # Triplelift supports user syncing but requires configuration by the host as the RedirectURL domain must be allowlisted. 
-  # Contact this bidder directly at the email address above to ask about enabling user sync.
-  # 
+  # Triplelift supports user syncing but requires configuration by the host as the RedirectURL domain must be allowlisted.
+  # If you are a publisher hosting your own Prebid Server, contact this bidder directly at the email address above to ask about enabling user sync.
+  # If you are a Prebid Server Host, please have your publisher contact the bidder.
+  #
   iframe:
     url: "https://eb2.3lift.com/sync?gdpr={{.GDPR}}&cmp_cs={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&gpp={{.GPP}}&gpp_sid={{.GPPSID}}&redir={{.RedirectURL}}"
     userMacro: $UID
@@ -23,4 +24,5 @@ userSync:
     userMacro: "$UID"
 endpointCompression: "GZIP"
 openrtb:
+  version: 2.6
   gpp-supported: true
\ No newline at end of file
diff --git a/static/bidder-info/triplelift_native.yaml b/static/bidder-info/triplelift_native.yaml
index ff93b544c4c..c5e08152692 100644
--- a/static/bidder-info/triplelift_native.yaml
+++ b/static/bidder-info/triplelift_native.yaml
@@ -12,8 +12,9 @@ capabilities:
     mediaTypes:
       - native
 userSync:
-  # Triplelift supports user syncing but requires configuration by the host as the RedirectURL domain must be allowlisted. 
-  # Contact this bidder directly at the email address above to ask about enabling user sync.
+  # Triplelift supports user syncing but requires configuration by the host as the RedirectURL domain must be allowlisted.
+  # If you are a publisher hosting your own Prebid Server, contact this bidder directly at the email address above to ask about enabling user sync.
+  # If you are a Prebid Server Host, please have your publisher contact the bidder.
   # 
   iframe:
     url: "https://eb2.3lift.com/sync?gdpr={{.GDPR}}&cmp_cs={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&gpp={{.GPP}}&gpp_sid={{.GPPSID}}&redir={{.RedirectURL}}"
@@ -22,4 +23,5 @@ userSync:
     url: "https://eb2.3lift.com/getuid?gdpr={{.GDPR}}&cmp_cs={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&gpp={{.GPP}}&gpp_sid={{.GPPSID}}&redir={{.RedirectURL}}"
     userMacro: "$UID"
 openrtb:
+  version: 2.6
   gpp-supported: true
\ No newline at end of file
diff --git a/static/bidder-info/unruly.yaml b/static/bidder-info/unruly.yaml
index 6389f831a64..62f03dec84d 100644
--- a/static/bidder-info/unruly.yaml
+++ b/static/bidder-info/unruly.yaml
@@ -1,7 +1,13 @@
 endpoint: "https://targeting.unrulymedia.com/unruly_prebid_server"
+endpointCompression: gzip
+geoscope:
+  - global
 maintainer:
   email: "prebidsupport@unrulygroup.com"
 gvlVendorID: 36
+openrtb:
+  version: 2.6
+  gpp-supported: true
 capabilities:
   app:
     mediaTypes:
@@ -14,4 +20,4 @@ capabilities:
 userSync:
   redirect:
     url: "https://sync.1rx.io/usersync2/rmphb?gdpr={{.GDPR}}&gdpr_consent={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&redir={{.RedirectURL}}"
-    userMacro: "[RX_UUID]"
\ No newline at end of file
+    userMacro: "[RX_UUID]"
diff --git a/static/bidder-info/yieldmo.yaml b/static/bidder-info/yieldmo.yaml
index 02ab8721a16..17b25ecbbf1 100644
--- a/static/bidder-info/yieldmo.yaml
+++ b/static/bidder-info/yieldmo.yaml
@@ -2,6 +2,8 @@ endpoint: "https://ads.yieldmo.com/exchange/prebid-server"
 maintainer:
   email: "prebid@yieldmo.com"
 gvlVendorID: 173
+openrtb:
+  version: 2.6
 capabilities:
   app:
     mediaTypes:
diff --git a/static/bidder-params/improvedigital.json b/static/bidder-params/improvedigital.json
index 55412c2f513..7c44faf3bed 100644
--- a/static/bidder-params/improvedigital.json
+++ b/static/bidder-params/improvedigital.json
@@ -7,16 +7,12 @@
         "placementId": {
             "type": "integer",
             "minimum": 1,
-            "description": "An ID which identifies this placement of the impression"
+            "description": "The placement ID from Improve Digital"
         },
         "publisherId": {
             "type": "integer",
             "minimum": 1,
-            "description": "An ID which identifies publisher. Required when using a placementKey"
-        },
-        "placementKey": {
-            "type": "string",
-            "description": "An uniq name which identifies this placement of the impression. Must be used with publisherId"
+            "description": "The publisher ID from Improve Digital"
         },
         "keyValues": {
             "type": "object",
@@ -32,13 +28,12 @@
                     "type": "integer"
                 }
             },
-            "required": ["w", "h"],
+            "required": [
+                "w",
+                "h"
+            ],
             "description": "Placement size"
         }
     },
-    "oneOf": [{
-        "required": ["placementId"]
-    }, {
-        "required": ["publisherId", "placementKey"]
-    }]
-}
+    "required": ["placementId"]
+}
\ No newline at end of file
diff --git a/static/bidder-params/missena.json b/static/bidder-params/missena.json
new file mode 100644
index 00000000000..c9e20e5a828
--- /dev/null
+++ b/static/bidder-params/missena.json
@@ -0,0 +1,24 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "Missena Adapter Params",
+  "description": "A schema which validates params accepted by the Missena adapter",
+  "type": "object",
+  "properties": {
+    "apiKey": {
+      "type": "string",
+      "description": "API Key",
+      "minLength": 1
+    },
+    "placement": {
+      "type": "string",
+      "description": "Placement Type (Sticky, Header, ...)"
+    },
+    "test": {
+      "type": "string",
+      "description": "Test Mode"
+    }
+  },
+  "required": [
+    "apiKey"
+  ]
+}
\ No newline at end of file
diff --git a/stored_requests/backends/db_fetcher/fetcher.go b/stored_requests/backends/db_fetcher/fetcher.go
index d6fade0e866..4fcebd3c6d8 100644
--- a/stored_requests/backends/db_fetcher/fetcher.go
+++ b/stored_requests/backends/db_fetcher/fetcher.go
@@ -7,8 +7,8 @@ import (
 	"github.com/lib/pq"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/db_provider"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/db_provider"
 )
 
 func NewFetcher(
diff --git a/stored_requests/backends/db_fetcher/fetcher_test.go b/stored_requests/backends/db_fetcher/fetcher_test.go
index f736e1bea15..6da09abf7b4 100644
--- a/stored_requests/backends/db_fetcher/fetcher_test.go
+++ b/stored_requests/backends/db_fetcher/fetcher_test.go
@@ -11,7 +11,7 @@ import (
 	"time"
 
 	"github.com/DATA-DOG/go-sqlmock"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/db_provider"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/db_provider"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/stored_requests/backends/db_provider/db_provider.go b/stored_requests/backends/db_provider/db_provider.go
index 6e623356ed8..01cd13b7b20 100644
--- a/stored_requests/backends/db_provider/db_provider.go
+++ b/stored_requests/backends/db_provider/db_provider.go
@@ -5,7 +5,7 @@ import (
 	"database/sql"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 )
 
 type DbProvider interface {
diff --git a/stored_requests/backends/db_provider/db_provider_mock.go b/stored_requests/backends/db_provider/db_provider_mock.go
index c0ec3458eee..1b1c1ff6012 100644
--- a/stored_requests/backends/db_provider/db_provider_mock.go
+++ b/stored_requests/backends/db_provider/db_provider_mock.go
@@ -6,7 +6,7 @@ import (
 	"reflect"
 
 	"github.com/DATA-DOG/go-sqlmock"
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 )
 
 func NewDbProviderMock() (*DbProviderMock, sqlmock.Sqlmock, error) {
diff --git a/stored_requests/backends/db_provider/mysql_dbprovider.go b/stored_requests/backends/db_provider/mysql_dbprovider.go
index 38ad0836024..bdcfacbae87 100644
--- a/stored_requests/backends/db_provider/mysql_dbprovider.go
+++ b/stored_requests/backends/db_provider/mysql_dbprovider.go
@@ -15,7 +15,7 @@ import (
 	"strings"
 
 	"github.com/go-sql-driver/mysql"
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 )
 
 const customTLSKey = "prebid-tls"
diff --git a/stored_requests/backends/db_provider/mysql_dbprovider_test.go b/stored_requests/backends/db_provider/mysql_dbprovider_test.go
index b91352d08d6..c12d7f5abc3 100644
--- a/stored_requests/backends/db_provider/mysql_dbprovider_test.go
+++ b/stored_requests/backends/db_provider/mysql_dbprovider_test.go
@@ -6,7 +6,7 @@ import (
 	"runtime"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/stored_requests/backends/db_provider/postgres_dbprovider.go b/stored_requests/backends/db_provider/postgres_dbprovider.go
index e2081f27df4..c94632a0f3c 100644
--- a/stored_requests/backends/db_provider/postgres_dbprovider.go
+++ b/stored_requests/backends/db_provider/postgres_dbprovider.go
@@ -10,7 +10,7 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 )
 
 type PostgresDbProvider struct {
diff --git a/stored_requests/backends/db_provider/postgres_dbprovider_test.go b/stored_requests/backends/db_provider/postgres_dbprovider_test.go
index 4b31e6f8ec3..1be77d0d283 100644
--- a/stored_requests/backends/db_provider/postgres_dbprovider_test.go
+++ b/stored_requests/backends/db_provider/postgres_dbprovider_test.go
@@ -4,7 +4,7 @@ import (
 	"errors"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/stored_requests/backends/empty_fetcher/fetcher.go b/stored_requests/backends/empty_fetcher/fetcher.go
index 65e5de90480..405903e533f 100644
--- a/stored_requests/backends/empty_fetcher/fetcher.go
+++ b/stored_requests/backends/empty_fetcher/fetcher.go
@@ -4,7 +4,7 @@ import (
 	"context"
 	"encoding/json"
 
-	"github.com/prebid/prebid-server/v2/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests"
 )
 
 // EmptyFetcher is a nil-object which has no Stored Requests.
diff --git a/stored_requests/backends/file_fetcher/fetcher.go b/stored_requests/backends/file_fetcher/fetcher.go
index 523e9bb5229..1c51a353fb8 100644
--- a/stored_requests/backends/file_fetcher/fetcher.go
+++ b/stored_requests/backends/file_fetcher/fetcher.go
@@ -8,8 +8,8 @@ import (
 	"os"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 )
 
diff --git a/stored_requests/backends/file_fetcher/fetcher_test.go b/stored_requests/backends/file_fetcher/fetcher_test.go
index 97206822968..80e45bb9445 100644
--- a/stored_requests/backends/file_fetcher/fetcher_test.go
+++ b/stored_requests/backends/file_fetcher/fetcher_test.go
@@ -6,8 +6,8 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/stored_requests/backends/http_fetcher/fetcher.go b/stored_requests/backends/http_fetcher/fetcher.go
index ea388778cc2..dc4dd03a1fe 100644
--- a/stored_requests/backends/http_fetcher/fetcher.go
+++ b/stored_requests/backends/http_fetcher/fetcher.go
@@ -9,8 +9,8 @@ import (
 	"net/url"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 
 	"github.com/golang/glog"
diff --git a/stored_requests/backends/http_fetcher/fetcher_test.go b/stored_requests/backends/http_fetcher/fetcher_test.go
index 9c7c1cb2505..9ba85eac948 100644
--- a/stored_requests/backends/http_fetcher/fetcher_test.go
+++ b/stored_requests/backends/http_fetcher/fetcher_test.go
@@ -10,7 +10,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/stored_requests/caches/cachestest/reliable.go b/stored_requests/caches/cachestest/reliable.go
index 517668318c7..f4042e28c4a 100644
--- a/stored_requests/caches/cachestest/reliable.go
+++ b/stored_requests/caches/cachestest/reliable.go
@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests"
 )
 
 const (
diff --git a/stored_requests/caches/memory/cache.go b/stored_requests/caches/memory/cache.go
index eb6317a3487..c7c9f7ceea8 100644
--- a/stored_requests/caches/memory/cache.go
+++ b/stored_requests/caches/memory/cache.go
@@ -7,7 +7,7 @@ import (
 
 	"github.com/coocood/freecache"
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests"
 )
 
 // NewCache returns an in-memory Cache which evicts items if:
diff --git a/stored_requests/caches/memory/cache_test.go b/stored_requests/caches/memory/cache_test.go
index 67ff661c7c5..91548e46934 100644
--- a/stored_requests/caches/memory/cache_test.go
+++ b/stored_requests/caches/memory/cache_test.go
@@ -7,8 +7,8 @@ import (
 	"strconv"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_requests/caches/cachestest"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests/caches/cachestest"
 )
 
 func TestLRURobustness(t *testing.T) {
diff --git a/stored_requests/config/config.go b/stored_requests/config/config.go
index 112b11122f9..6950c5ebc0c 100644
--- a/stored_requests/config/config.go
+++ b/stored_requests/config/config.go
@@ -5,24 +5,24 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/metrics"
+	"github.com/prebid/prebid-server/v3/metrics"
 
 	"github.com/golang/glog"
 	"github.com/julienschmidt/httprouter"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/db_fetcher"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/db_provider"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/empty_fetcher"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/file_fetcher"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/http_fetcher"
-	"github.com/prebid/prebid-server/v2/stored_requests/caches/memory"
-	"github.com/prebid/prebid-server/v2/stored_requests/caches/nil_cache"
-	"github.com/prebid/prebid-server/v2/stored_requests/events"
-	apiEvents "github.com/prebid/prebid-server/v2/stored_requests/events/api"
-	databaseEvents "github.com/prebid/prebid-server/v2/stored_requests/events/database"
-	httpEvents "github.com/prebid/prebid-server/v2/stored_requests/events/http"
-	"github.com/prebid/prebid-server/v2/util/task"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/db_fetcher"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/db_provider"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/empty_fetcher"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/file_fetcher"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/http_fetcher"
+	"github.com/prebid/prebid-server/v3/stored_requests/caches/memory"
+	"github.com/prebid/prebid-server/v3/stored_requests/caches/nil_cache"
+	"github.com/prebid/prebid-server/v3/stored_requests/events"
+	apiEvents "github.com/prebid/prebid-server/v3/stored_requests/events/api"
+	databaseEvents "github.com/prebid/prebid-server/v3/stored_requests/events/database"
+	httpEvents "github.com/prebid/prebid-server/v3/stored_requests/events/http"
+	"github.com/prebid/prebid-server/v3/util/task"
 )
 
 // CreateStoredRequests returns three things:
diff --git a/stored_requests/config/config_test.go b/stored_requests/config/config_test.go
index 2e5a8c2a079..917e3e975cf 100644
--- a/stored_requests/config/config_test.go
+++ b/stored_requests/config/config_test.go
@@ -13,14 +13,14 @@ import (
 
 	sqlmock "github.com/DATA-DOG/go-sqlmock"
 	"github.com/julienschmidt/httprouter"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/db_provider"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/empty_fetcher"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/http_fetcher"
-	"github.com/prebid/prebid-server/v2/stored_requests/events"
-	httpEvents "github.com/prebid/prebid-server/v2/stored_requests/events/http"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/db_provider"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/empty_fetcher"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/http_fetcher"
+	"github.com/prebid/prebid-server/v3/stored_requests/events"
+	httpEvents "github.com/prebid/prebid-server/v3/stored_requests/events/http"
 	"github.com/stretchr/testify/mock"
 )
 
diff --git a/stored_requests/events/api/api.go b/stored_requests/events/api/api.go
index 2d489bded38..c9f87e0ae7e 100644
--- a/stored_requests/events/api/api.go
+++ b/stored_requests/events/api/api.go
@@ -5,8 +5,8 @@ import (
 	"net/http"
 
 	"github.com/julienschmidt/httprouter"
-	"github.com/prebid/prebid-server/v2/stored_requests/events"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/stored_requests/events"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type eventsAPI struct {
diff --git a/stored_requests/events/api/api_test.go b/stored_requests/events/api/api_test.go
index 536afe820af..c5d67a9b862 100644
--- a/stored_requests/events/api/api_test.go
+++ b/stored_requests/events/api/api_test.go
@@ -9,9 +9,9 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_requests/caches/memory"
-	"github.com/prebid/prebid-server/v2/stored_requests/events"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests/caches/memory"
+	"github.com/prebid/prebid-server/v3/stored_requests/events"
 )
 
 func TestGoodRequests(t *testing.T) {
diff --git a/stored_requests/events/database/database.go b/stored_requests/events/database/database.go
index 260a58029cb..f11da259db1 100644
--- a/stored_requests/events/database/database.go
+++ b/stored_requests/events/database/database.go
@@ -9,11 +9,11 @@ import (
 	"time"
 
 	"github.com/golang/glog"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/db_provider"
-	"github.com/prebid/prebid-server/v2/stored_requests/events"
-	"github.com/prebid/prebid-server/v2/util/timeutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/db_provider"
+	"github.com/prebid/prebid-server/v3/stored_requests/events"
+	"github.com/prebid/prebid-server/v3/util/timeutil"
 )
 
 func bytesNull() []byte {
diff --git a/stored_requests/events/database/database_test.go b/stored_requests/events/database/database_test.go
index 27a56b67fe3..ffe02851cad 100644
--- a/stored_requests/events/database/database_test.go
+++ b/stored_requests/events/database/database_test.go
@@ -7,10 +7,10 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/stored_requests/backends/db_provider"
-	"github.com/prebid/prebid-server/v2/stored_requests/events"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/stored_requests/backends/db_provider"
+	"github.com/prebid/prebid-server/v3/stored_requests/events"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 
diff --git a/stored_requests/events/events.go b/stored_requests/events/events.go
index e042b7c3513..e96692826b4 100644
--- a/stored_requests/events/events.go
+++ b/stored_requests/events/events.go
@@ -4,7 +4,7 @@ import (
 	"context"
 	"encoding/json"
 
-	"github.com/prebid/prebid-server/v2/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests"
 )
 
 // Save represents a bulk save
diff --git a/stored_requests/events/events_test.go b/stored_requests/events/events_test.go
index 165e6a6beb0..4520a332552 100644
--- a/stored_requests/events/events_test.go
+++ b/stored_requests/events/events_test.go
@@ -7,8 +7,8 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/stored_requests"
-	"github.com/prebid/prebid-server/v2/stored_requests/caches/memory"
+	"github.com/prebid/prebid-server/v3/stored_requests"
+	"github.com/prebid/prebid-server/v3/stored_requests/caches/memory"
 )
 
 func TestListen(t *testing.T) {
diff --git a/stored_requests/events/http/http.go b/stored_requests/events/http/http.go
index 0f5dfb9a596..6ea41a6f848 100644
--- a/stored_requests/events/http/http.go
+++ b/stored_requests/events/http/http.go
@@ -12,8 +12,8 @@ import (
 	"golang.org/x/net/context/ctxhttp"
 
 	"github.com/buger/jsonparser"
-	"github.com/prebid/prebid-server/v2/stored_requests/events"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/stored_requests/events"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 
 	"github.com/golang/glog"
 )
diff --git a/stored_requests/events/http/http_test.go b/stored_requests/events/http/http_test.go
index fa7f64f227f..90fd61371c1 100644
--- a/stored_requests/events/http/http_test.go
+++ b/stored_requests/events/http/http_test.go
@@ -8,7 +8,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/stored_requests/fetcher.go b/stored_requests/fetcher.go
index cd3855c9eb8..343e1f82d5f 100644
--- a/stored_requests/fetcher.go
+++ b/stored_requests/fetcher.go
@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 	"fmt"
 
-	"github.com/prebid/prebid-server/v2/metrics"
+	"github.com/prebid/prebid-server/v3/metrics"
 )
 
 // Fetcher knows how to fetch Stored Request data by id.
diff --git a/stored_requests/fetcher_test.go b/stored_requests/fetcher_test.go
index 34c15f61f96..c97340cbdb9 100644
--- a/stored_requests/fetcher_test.go
+++ b/stored_requests/fetcher_test.go
@@ -6,8 +6,8 @@ import (
 	"errors"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/metrics"
-	"github.com/prebid/prebid-server/v2/stored_requests/caches/nil_cache"
+	"github.com/prebid/prebid-server/v3/metrics"
+	"github.com/prebid/prebid-server/v3/stored_requests/caches/nil_cache"
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
diff --git a/stored_responses/stored_responses.go b/stored_responses/stored_responses.go
index 04dc3decf5a..6c8d4ae5f6b 100644
--- a/stored_responses/stored_responses.go
+++ b/stored_responses/stored_responses.go
@@ -7,8 +7,8 @@ import (
 	"strings"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/stored_requests"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/stored_requests"
 )
 
 type ImpsWithAuctionResponseIDs map[string]string
@@ -22,22 +22,9 @@ type ImpBidderReplaceImpID map[string]map[string]bool
 type BidderImpReplaceImpID map[string]map[string]bool
 
 func InitStoredBidResponses(req *openrtb2.BidRequest, storedBidResponses ImpBidderStoredResp) BidderImpsWithBidResponses {
-	removeImpsWithStoredResponses(req, storedBidResponses)
 	return buildStoredResp(storedBidResponses)
 }
 
-// removeImpsWithStoredResponses deletes imps with stored bid resp
-func removeImpsWithStoredResponses(req *openrtb2.BidRequest, storedBidResponses ImpBidderStoredResp) {
-	imps := req.Imp
-	req.Imp = nil //to indicate this bidder doesn't have real requests
-	for _, imp := range imps {
-		if _, ok := storedBidResponses[imp.ID]; !ok {
-			//add real imp back to request
-			req.Imp = append(req.Imp, imp)
-		}
-	}
-}
-
 func buildStoredResp(storedBidResponses ImpBidderStoredResp) BidderImpsWithBidResponses {
 	// bidder -> imp id -> stored bid resp
 	bidderToImpToResponses := BidderImpsWithBidResponses{}
diff --git a/stored_responses/stored_responses_test.go b/stored_responses/stored_responses_test.go
index 58bba22aae8..0dcd5e9a6de 100644
--- a/stored_responses/stored_responses_test.go
+++ b/stored_responses/stored_responses_test.go
@@ -7,76 +7,10 @@ import (
 	"testing"
 
 	"github.com/prebid/openrtb/v20/openrtb2"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
-func TestRemoveImpsWithStoredResponses(t *testing.T) {
-	bidRespId1 := json.RawMessage(`{"id": "resp_id1"}`)
-	testCases := []struct {
-		description        string
-		reqIn              *openrtb2.BidRequest
-		storedBidResponses ImpBidderStoredResp
-		expectedImps       []openrtb2.Imp
-	}{
-		{
-			description: "request with imps and stored bid response for this imp",
-			reqIn: &openrtb2.BidRequest{Imp: []openrtb2.Imp{
-				{ID: "imp-id1"},
-			}},
-			storedBidResponses: ImpBidderStoredResp{
-				"imp-id1": {"appnexus": bidRespId1},
-			},
-			expectedImps: nil,
-		},
-		{
-			description: "request with imps and stored bid response for one of these imp",
-			reqIn: &openrtb2.BidRequest{Imp: []openrtb2.Imp{
-				{ID: "imp-id1"},
-				{ID: "imp-id2"},
-			}},
-			storedBidResponses: ImpBidderStoredResp{
-				"imp-id1": {"appnexus": bidRespId1},
-			},
-			expectedImps: []openrtb2.Imp{
-				{
-					ID: "imp-id2",
-				},
-			},
-		},
-		{
-			description: "request with imps and stored bid response for both of these imp",
-			reqIn: &openrtb2.BidRequest{Imp: []openrtb2.Imp{
-				{ID: "imp-id1"},
-				{ID: "imp-id2"},
-			}},
-			storedBidResponses: ImpBidderStoredResp{
-				"imp-id1": {"appnexus": bidRespId1},
-				"imp-id2": {"appnexus": bidRespId1},
-			},
-			expectedImps: nil,
-		},
-		{
-			description: "request with imps and no stored bid responses",
-			reqIn: &openrtb2.BidRequest{Imp: []openrtb2.Imp{
-				{ID: "imp-id1"},
-				{ID: "imp-id2"},
-			}},
-			storedBidResponses: nil,
-
-			expectedImps: []openrtb2.Imp{
-				{ID: "imp-id1"},
-				{ID: "imp-id2"},
-			},
-		},
-	}
-	for _, testCase := range testCases {
-		request := testCase.reqIn
-		removeImpsWithStoredResponses(request, testCase.storedBidResponses)
-		assert.Equal(t, testCase.expectedImps, request.Imp, "incorrect Impressions for testCase %s", testCase.description)
-	}
-}
-
 func TestBuildStoredBidResponses(t *testing.T) {
 	bidRespId1 := json.RawMessage(`{"id": "resp_id1"}`)
 	bidRespId2 := json.RawMessage(`{"id": "resp_id2"}`)
diff --git a/usersync/chooser.go b/usersync/chooser.go
index d8bf731f693..31a14a4d431 100644
--- a/usersync/chooser.go
+++ b/usersync/chooser.go
@@ -3,8 +3,8 @@ package usersync
 import (
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 // Chooser determines which syncers are eligible for a given request.
@@ -86,8 +86,8 @@ const (
 	// StatusUnknownBidder specifies a requested bidder is unknown to Prebid Server.
 	StatusUnknownBidder
 
-	// StatusTypeNotSupported specifies a requested sync type is not supported by a specific bidder.
-	StatusTypeNotSupported
+	// StatusRejectedByFilter specifies a requested sync type is not supported by a specific bidder.
+	StatusRejectedByFilter
 
 	// StatusDuplicate specifies the bidder is a duplicate or shared a syncer key with another bidder choice.
 	StatusDuplicate
@@ -181,7 +181,7 @@ func (c standardChooser) evaluate(bidder string, syncersSeen map[string]struct{}
 	syncersSeen[syncer.Key()] = struct{}{}
 
 	if !syncer.SupportsType(syncTypeFilter.ForBidder(strings.ToLower(bidder))) {
-		return nil, BidderEvaluation{Status: StatusTypeNotSupported, Bidder: bidder, SyncerKey: syncer.Key()}
+		return nil, BidderEvaluation{Status: StatusRejectedByFilter, Bidder: bidder, SyncerKey: syncer.Key()}
 	}
 
 	if cookie.HasLiveSync(syncer.Key()) {
diff --git a/usersync/chooser_test.go b/usersync/chooser_test.go
index f48dbeff9f1..2674330c301 100644
--- a/usersync/chooser_test.go
+++ b/usersync/chooser_test.go
@@ -4,13 +4,13 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/ptrutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/ptrutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 
-	"github.com/prebid/prebid-server/v2/macros"
+	"github.com/prebid/prebid-server/v3/macros"
 )
 
 func TestNewChooser(t *testing.T) {
@@ -153,7 +153,7 @@ func TestChooserChoose(t *testing.T) {
 			bidderNamesLookup:  normalizedBidderNamesLookup,
 			expected: Result{
 				Status:           StatusOK,
-				BiddersEvaluated: []BidderEvaluation{{Bidder: "c", SyncerKey: "keyC", Status: StatusTypeNotSupported}},
+				BiddersEvaluated: []BidderEvaluation{{Bidder: "c", SyncerKey: "keyC", Status: StatusRejectedByFilter}},
 				SyncersChosen:    []SyncerChoice{},
 			},
 		},
@@ -228,7 +228,7 @@ func TestChooserChoose(t *testing.T) {
 			bidderNamesLookup:  normalizedBidderNamesLookup,
 			expected: Result{
 				Status:           StatusOK,
-				BiddersEvaluated: []BidderEvaluation{{Bidder: "c", SyncerKey: "keyC", Status: StatusTypeNotSupported}, {Bidder: "a", SyncerKey: "keyA", Status: StatusOK}},
+				BiddersEvaluated: []BidderEvaluation{{Bidder: "c", SyncerKey: "keyC", Status: StatusRejectedByFilter}, {Bidder: "a", SyncerKey: "keyA", Status: StatusOK}},
 				SyncersChosen:    []SyncerChoice{syncerChoiceA},
 			},
 		},
@@ -243,7 +243,7 @@ func TestChooserChoose(t *testing.T) {
 			bidderNamesLookup:  normalizedBidderNamesLookup,
 			expected: Result{
 				Status:           StatusOK,
-				BiddersEvaluated: []BidderEvaluation{{Bidder: "a", SyncerKey: "keyA", Status: StatusOK}, {Bidder: "c", SyncerKey: "keyC", Status: StatusTypeNotSupported}},
+				BiddersEvaluated: []BidderEvaluation{{Bidder: "a", SyncerKey: "keyA", Status: StatusOK}, {Bidder: "c", SyncerKey: "keyC", Status: StatusRejectedByFilter}},
 				SyncersChosen:    []SyncerChoice{syncerChoiceA},
 			},
 		},
@@ -531,7 +531,7 @@ func TestChooserEvaluate(t *testing.T) {
 			givenSyncTypeFilter:         syncTypeFilter,
 			normalizedBidderNamesLookup: normalizedBidderNamesLookup,
 			expectedSyncer:              nil,
-			expectedEvaluation:          BidderEvaluation{Bidder: "b", SyncerKey: "keyB", Status: StatusTypeNotSupported},
+			expectedEvaluation:          BidderEvaluation{Bidder: "b", SyncerKey: "keyB", Status: StatusRejectedByFilter},
 		},
 		{
 			description:                 "Already Synced",
diff --git a/usersync/cookie.go b/usersync/cookie.go
index cfec6a8ec9d..dce5b02095c 100644
--- a/usersync/cookie.go
+++ b/usersync/cookie.go
@@ -5,9 +5,9 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 const uidCookieName = "uids"
diff --git a/usersync/cookie_test.go b/usersync/cookie_test.go
index d3fa72b9fe0..79193d92a65 100644
--- a/usersync/cookie_test.go
+++ b/usersync/cookie_test.go
@@ -7,8 +7,8 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/usersync/decoder.go b/usersync/decoder.go
index a73e37fc560..d77c8d426bf 100644
--- a/usersync/decoder.go
+++ b/usersync/decoder.go
@@ -3,7 +3,7 @@ package usersync
 import (
 	"encoding/base64"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type Decoder interface {
diff --git a/usersync/encoder.go b/usersync/encoder.go
index 2baf5d86524..6a7db1fe519 100644
--- a/usersync/encoder.go
+++ b/usersync/encoder.go
@@ -3,7 +3,7 @@ package usersync
 import (
 	"encoding/base64"
 
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 type Encoder interface {
diff --git a/usersync/syncer.go b/usersync/syncer.go
index 50985eca5be..b2fec616102 100644
--- a/usersync/syncer.go
+++ b/usersync/syncer.go
@@ -9,8 +9,8 @@ import (
 	"text/template"
 
 	validator "github.com/asaskevich/govalidator"
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/macros"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/macros"
 )
 
 var (
diff --git a/usersync/syncer_test.go b/usersync/syncer_test.go
index c9c568e299a..020fb26df66 100644
--- a/usersync/syncer_test.go
+++ b/usersync/syncer_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 	"text/template"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/macros"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/macros"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/usersync/syncersbuilder.go b/usersync/syncersbuilder.go
index ed86ef02efd..b79cdf48c7f 100644
--- a/usersync/syncersbuilder.go
+++ b/usersync/syncersbuilder.go
@@ -5,7 +5,7 @@ import (
 	"sort"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v3/config"
 )
 
 type namedSyncerConfig struct {
diff --git a/usersync/syncersbuilder_test.go b/usersync/syncersbuilder_test.go
index a8f396aa714..041c83a7b58 100644
--- a/usersync/syncersbuilder_test.go
+++ b/usersync/syncersbuilder_test.go
@@ -4,8 +4,8 @@ import (
 	"errors"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/config"
-	"github.com/prebid/prebid-server/v2/macros"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/macros"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/util/httputil/httputil.go b/util/httputil/httputil.go
index cabb197fa37..dd09cdadf42 100644
--- a/util/httputil/httputil.go
+++ b/util/httputil/httputil.go
@@ -5,7 +5,7 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/prebid/prebid-server/v2/util/iputil"
+	"github.com/prebid/prebid-server/v3/util/iputil"
 )
 
 var (
diff --git a/util/httputil/httputil_test.go b/util/httputil/httputil_test.go
index d056db245f3..2b2f52e5c57 100644
--- a/util/httputil/httputil_test.go
+++ b/util/httputil/httputil_test.go
@@ -5,7 +5,7 @@ import (
 	"net/http"
 	"testing"
 
-	"github.com/prebid/prebid-server/v2/util/iputil"
+	"github.com/prebid/prebid-server/v3/util/iputil"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/util/jsonutil/jsonutil.go b/util/jsonutil/jsonutil.go
index 1aed24bc8a5..1e460196fc4 100644
--- a/util/jsonutil/jsonutil.go
+++ b/util/jsonutil/jsonutil.go
@@ -9,7 +9,7 @@ import (
 
 	jsoniter "github.com/json-iterator/go"
 	"github.com/modern-go/reflect2"
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 )
 
 var comma = byte(',')
diff --git a/util/jsonutil/merge.go b/util/jsonutil/merge.go
index 7900f78a4ff..2b7edc6ee25 100644
--- a/util/jsonutil/merge.go
+++ b/util/jsonutil/merge.go
@@ -10,7 +10,7 @@ import (
 	"github.com/modern-go/reflect2"
 	jsonpatch "gopkg.in/evanphx/json-patch.v4"
 
-	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v3/errortypes"
 )
 
 // jsonConfigMergeClone uses the same configuration as the `ConfigCompatibleWithStandardLibrary` profile
diff --git a/util/task/ticker_task_test.go b/util/task/ticker_task_test.go
index 3ca0280d23e..b1acb35ffa1 100644
--- a/util/task/ticker_task_test.go
+++ b/util/task/ticker_task_test.go
@@ -5,7 +5,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prebid/prebid-server/v2/util/task"
+	"github.com/prebid/prebid-server/v3/util/task"
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/version/xprebidheader.go b/version/xprebidheader.go
index cb4ba2ec984..7e31aa4b112 100644
--- a/version/xprebidheader.go
+++ b/version/xprebidheader.go
@@ -5,7 +5,7 @@ import (
 
 	"github.com/prebid/openrtb/v20/openrtb2"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
 )
 
 const xPrebidHeaderVersionPrefix = "pbs-go"
diff --git a/version/xprebidheader_test.go b/version/xprebidheader_test.go
index 712940e80bd..15a73fe98f8 100644
--- a/version/xprebidheader_test.go
+++ b/version/xprebidheader_test.go
@@ -6,8 +6,8 @@ import (
 	"github.com/prebid/openrtb/v20/openrtb2"
 	"github.com/stretchr/testify/assert"
 
-	"github.com/prebid/prebid-server/v2/openrtb_ext"
-	"github.com/prebid/prebid-server/v2/util/jsonutil"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
 )
 
 func TestBuildXPrebidHeader(t *testing.T) {