diff --git a/CHANGELOG b/CHANGELOG
index 9a720bac0..cc982367d 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+2020-10-08
+    - 2.12.11
+    - [BUGFIX] Function that checks validity of handshake packets
+
 2020-10-06
     - 2.12.10
     - [BUGFIX] Deactivate only *recent* HQ frame, not any HQ frame.
diff --git a/docs/conf.py b/docs/conf.py
index 6468e20db..029d4d3c6 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -26,7 +26,7 @@
 # The short X.Y version
 version = u'2.12'
 # The full version, including alpha/beta/rc tags
-release = u'2.12.10'
+release = u'2.12.11'
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/include/lsquic.h b/include/lsquic.h
index 3ab1b8214..05adede7e 100644
--- a/include/lsquic.h
+++ b/include/lsquic.h
@@ -25,7 +25,7 @@ extern "C" {
 
 #define LSQUIC_MAJOR_VERSION 2
 #define LSQUIC_MINOR_VERSION 12
-#define LSQUIC_PATCH_VERSION 10
+#define LSQUIC_PATCH_VERSION 11
 
 /**
  * Engine flags: