diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index fb5eb3f9c..954ecb2c0 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,5 +1,9 @@
 # AWS EC2 FPGA HDK+SDK Release Notes
 
+## Release 1.4.20
+* Bug Fix release to fix XDMA to fix Issue #516
+* Miscellaneous documentation updates
+
 ## Release 1.4.19 (See [ERRATA](./ERRATA.md) for unsupported features)
 * Bug Fix release
 
diff --git a/hdk/hdk_version.txt b/hdk/hdk_version.txt
index 12fbc64cc..8977ab104 100644
--- a/hdk/hdk_version.txt
+++ b/hdk/hdk_version.txt
@@ -1 +1 @@
-HDK_VERSION=1.4.19
+HDK_VERSION=1.4.20