diff --git a/CHANGELOG.md b/CHANGELOG.md
index 607a46ea79a8c..f8c40116e96a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,7 @@ All notable changes to this project are documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). See the [CONTRIBUTING guide](./CONTRIBUTING.md#Changelog) for instructions on how to add changelog entries.
 
-## [Unreleased 2.12.x]
+## [Unreleased 5.0.0]
 ### Added
 
 ### Dependencies
@@ -18,4 +18,5 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ### Security
 
-[Unreleased 2.12.x]: https://github.com/opensearch-project/OpenSearch/compare/a9c03c2...2.12
+[Unreleased 5.0.0]: https://github.com/opensearch-project/OpenSearch/compare/5.0...5.0
+
diff --git a/VERSION b/VERSION
index b617d997d7701..28cbf7c0aae3b 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.9.0
\ No newline at end of file
+5.0.0
\ No newline at end of file