diff --git a/CHANGELOG.md b/CHANGELOG.md
index abcc1428d6..6479abf08d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,15 +3,8 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 ## [Unreleased 2.x]
 ### Added
-- Add support for phase_took & search_pipeline request params ([#1036](https://github.com/opensearch-project/opensearch-java/pull/1036))
-- Add an interface PlainJsonSerializable with a default method for serialization to Json ([#1064](https://github.com/opensearch-project/opensearch-java/pull/1064))
 
 ### Dependencies
-- Bumps `io.github.classgraph:classgraph` from 4.8.173 to 4.8.174
-- Bumps `org.owasp.dependencycheck` from 9.1.0 to 10.0.2
-- Bumps `com.github.jk1.dependency-license-report` from 2.7 to 2.8
-- Bumps `commons-logging:commons-logging` from 1.3.2 to 1.3.3
-- Bumps `org.apache.httpcomponents.core5:httpcore5` from 5.2.4 to 5.2.5
 
 ### Changed
 
@@ -20,11 +13,25 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Removed
 
 ### Fixed
-- Deserialize aggregation containing a parent aggregation ([#706](https://github.com/opensearch-project/opensearch-java/pull/706))
-- Deserialize error response when using AwsSdk2Transport ([#1068](https://github.com/opensearch-project/opensearch-java/pull/1068))
 
 ### Security
 
+## [2.12.0] - 07/22/2024
+### Added
+- Added support for the `parent` aggregation type ([#706](https://github.com/opensearch-project/opensearch-java/pull/706))
+- Added support for phase_took & search_pipeline request params ([#1036](https://github.com/opensearch-project/opensearch-java/pull/1036))
+- Added an interface PlainJsonSerializable with a default method for serialization to Json ([#1064](https://github.com/opensearch-project/opensearch-java/pull/1064))
+
+### Dependencies
+- Bumps `io.github.classgraph:classgraph` from 4.8.173 to 4.8.174
+- Bumps `org.owasp.dependencycheck` from 9.1.0 to 10.0.2
+- Bumps `com.github.jk1.dependency-license-report` from 2.7 to 2.8
+- Bumps `commons-logging:commons-logging` from 1.3.2 to 1.3.3
+- Bumps `org.apache.httpcomponents.core5:httpcore5` from 5.2.4 to 5.2.5
+
+### Fixed
+- Fixed deserializing of error responses when using AwsSdk2Transport ([#1068](https://github.com/opensearch-project/opensearch-java/pull/1068))
+
 ## [2.11.1] - 06/27/2024
 ### Added
 
@@ -449,7 +456,8 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
  
 ### Security
 
-[Unreleased 2.x]: https://github.com/opensearch-project/opensearch-java/compare/v2.11.1...2.x
+[Unreleased 2.x]: https://github.com/opensearch-project/opensearch-java/compare/v2.12.0...2.x
+[2.12.0]: https://github.com/opensearch-project/opensearch-java/compare/v2.11.1...v2.12.0
 [2.11.1]: https://github.com/opensearch-project/opensearch-java/compare/v2.11.0...v2.11.1
 [2.11.0]: https://github.com/opensearch-project/opensearch-java/compare/v2.10.4...v2.11.0
 [2.10.4]: https://github.com/opensearch-project/opensearch-java/compare/v2.10.3...v2.10.4
diff --git a/gradle.properties b/gradle.properties
index cf468aa9fe..c8fc81295f 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1 +1 @@
-systemProp.version = 2.11.0
+systemProp.version = 2.12.0