diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed6f1487cc..a07535cc73 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,14 @@
 # `chainweb-node` Changelog
 
-## UNRELEASED
+## 2.20 (2023-08-28)
+
+This version replaces all previous versions. Any prior version will stop working
+on **2023-09-07T00:00:00Z**. Node administrators must upgrade to this version before
+that date.
+
+This version will expire on **2023-10-19T00:00:00Z**.
+
+To upgrade, pull the latest docker image or download the binary and restart the node.
 
 Changes:
 
diff --git a/node/ChainwebNode.hs b/node/ChainwebNode.hs
index 08a15504e5..de7c207d00 100644
--- a/node/ChainwebNode.hs
+++ b/node/ChainwebNode.hs
@@ -529,7 +529,7 @@ pkgInfoScopes =
 -- SERVICE DATE for version 2.19
 --
 serviceDate :: Maybe String
-serviceDate = Just "2023-10-05T00:00:00Z"
+serviceDate = Just "2023-10-19T00:00:00Z"
 
 mainInfo :: ProgramInfo ChainwebNodeConfiguration
 mainInfo = programInfoValidate