[DO NOT MERGE] TFM net9.0

Directory.Build.props

@@ -6,9 +6,8 @@
     <RepositoryCommit>$(BUILD_SOURCEVERSION)</RepositoryCommit>
 
     <!-- Default TFM's we build for -->
-    <_DefaultTargetFrameworks>net8.0-android</_DefaultTargetFrameworks>
-    <_DefaultNetTargetFrameworks>net8.0</_DefaultNetTargetFrameworks>
-
+    <_DefaultTargetFrameworks>net9.0-android</_DefaultTargetFrameworks>
+    <_DefaultNetTargetFrameworks>net9.0</_DefaultNetTargetFrameworks>
     <!-- Enable DIM/SIM for Classic (defaults to true on .NET) -->
     <AndroidBoundInterfacesContainStaticAndDefaultInterfaceMethods>true</AndroidBoundInterfacesContainStaticAndDefaultInterfaceMethods>
 
@@ -78,13 +77,13 @@
 
   <!-- Folders that .targets files need to go into -->
   <ItemGroup>
-    <AndroidXNuGetTargetFolders Include="build\net8.0-android34.0" />
-    <AndroidXNuGetTargetFolders Include="buildTransitive\net8.0-android34.0" />
+    <AndroidXNuGetTargetFolders Include="build\net9.0-android34.0" />
+    <AndroidXNuGetTargetFolders Include="buildTransitive\net9.0-android34.0" />
   </ItemGroup>
 
   <!-- Folders that _._ files need to go into for packages without managed libraries -->
   <ItemGroup>
-    <AndroidXNuGetLibFolders Include="lib\net8.0-android34.0" />
+    <AndroidXNuGetLibFolders Include="lib\net9.0-android34.0" />
   </ItemGroup>
 
   <ItemGroup>

build/ci/setup-environment.yml

@@ -12,46 +12,15 @@ steps:
       includePreviewVersions: true
     condition: ne('$(dotnetVersion)', '')
 
-  - ${{ if eq(parameters.runDotnetNextTest, true) }}:
-    - task: UseDotNet@2
-      displayName: 'Use dotnet $(dotnetNextVersion)'
-      inputs:
-        version: $(dotnetNextVersion)
-        performMultiLevelLookup: true
-        includePreviewVersions: true
-
-  - ${{ each tool in parameters.dotnetTools }}:
-    - ${{ each pair in tool }}:
-      - pwsh: dotnet tool update -g ${{ pair.key }} --version ${{ pair.value }}
-        displayName: 'Install tool: ${{ pair.key }}'
-
-  - ${{ if eq(parameters.runDotnetNextTest, true) }}:
-    - pwsh: |
-        dotnet cake -t=dotnet-next `
-          --dotnet-version="$(dotnetNextVersion)" `
-          --framework-version="$(dotnetNextFrameworkVersion)" `
-          --api-level-version="$(dotnetNextApiLevel)"
-      displayName: Set up dotnet-next test changes
-
-  - ${{ if eq(parameters.runDotnetNextTest, false) }}:
-    - pwsh: |
-        dotnet workload install maui --verbosity diag --from-rollback-file $(dotnetWorkloadRollbackFile) --source $(dotnetWorkloadSource) --source $(dotnetNuGetOrgSource)
-        if ($LASTEXITCODE -ne 0) {
-            Write-Host "##vso[task.logissue type=error]Failed to install workloads."
-            Write-Host "##vso[task.complete result=Failed;]"
-            exit 0
-        }
-      displayName: Install .NET Workloads
-
-  - ${{ if eq(parameters.runDotnetNextTest, true) }}:
-    - pwsh: |
-        dotnet workload install maui --verbosity diag
-        if ($LASTEXITCODE -ne 0) {
-            Write-Host "##vso[task.logissue type=error]Failed to install workloads."
-            Write-Host "##vso[task.complete result=Failed;]"
-            exit 0
-        }
-      displayName: Install Preview .NET Workloads
+  - pwsh: |
+      dotnet workload install android --verbosity diag --from-rollback-file $(dotnetWorkloadRollbackFile) --source $(dotnetWorkloadSource) --source $(dotnetNuGetOrgSource)
+      dotnet workload install maui --verbosity diag --from-rollback-file $(dotnetWorkloadRollbackFile) --source $(dotnetWorkloadSource) --source $(dotnetNuGetOrgSource)
+      if ($LASTEXITCODE -ne 0) {
+          Write-Host "##vso[task.logissue type=error]Failed to install workloads."
+          Write-Host "##vso[task.complete result=Failed;]"
+          exit 0
+      }
+    displayName: Install .NET Workloads
 
   - bash: |
       echo "##vso[task.setvariable variable=JAVA_HOME]/Library/Java/JavaVirtualMachines/microsoft-11.jdk/Contents/Home"

build/ci/variables.yml

@@ -19,7 +19,7 @@ variables:
   macosAgentPoolName: VSEng-VSMac-Xamarin-Shared                                        # macOS VM pool name
 
   # Tool variables
-  dotnetVersion: '8.0.404'                                                              # .NET version to install on agent
+  dotnetVersion: '9.0.100'                                                              # .NET version to install on agent
   dotnetWorkloadRollbackFile: 'workloads.json'                                          # Rollback file specifying workload versions to install
   dotnetNuGetOrgSource: 'https://api.nuget.org/v3/index.json'                           # NuGet.org URL to find workloads
   dotnetWorkloadSource: 'https://aka.ms/dotnet6/nuget/index.json'                       # .NET engineering URL to find workloads