diff --git a/CHANGELOG b/CHANGELOG
index 9c53d7b..99342d8 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,9 @@
+2020-05-06
+    - 2.12.3
+    - [BUGFIX] Fix amplification mitigation in 0-RTT case.
+    - [BUGFIX] IETF mini connection should not tickable if cannot send
+      a packet due to amplification.
+
 2020-04-17
     - 2.12.2
     - [BUGFIX] Place connections on tickable queue when sending is reenabled.
diff --git a/docs/conf.py b/docs/conf.py
index e521ab4..6315524 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -26,7 +26,7 @@ author = u'LiteSpeed Technologies'
 # The short X.Y version
 version = u'2.12'
 # The full version, including alpha/beta/rc tags
-release = u'2.12.2'
+release = u'2.12.3'
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/include/lsquic.h b/include/lsquic.h
index c5fe3c0..c001667 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 2
+#define LSQUIC_PATCH_VERSION 3
 
 /**
  * Engine flags: