diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9cb5d39c1a764..e9a6cb7f131be 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -96,6 +96,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Allow parameterization of tests with OpenSearchIntegTestCase.SuiteScopeTestCase annotation ([#9916](https://github.com/opensearch-project/OpenSearch/pull/9916))
 - Mute the query profile IT with concurrent execution ([#9840](https://github.com/opensearch-project/OpenSearch/pull/9840))
 - Add instrumentation in transport service. ([#10042](https://github.com/opensearch-project/OpenSearch/pull/10042))
+- Add instrumentation in Inbound Handler. ([#100143](https://github.com/opensearch-project/OpenSearch/pull/10143))
 
 ### Deprecated
 
@@ -108,4 +109,4 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Security
 
 [Unreleased 3.0]: https://github.com/opensearch-project/OpenSearch/compare/2.x...HEAD
-[Unreleased 2.x]: https://github.com/opensearch-project/OpenSearch/compare/2.11...2.x
\ No newline at end of file
+[Unreleased 2.x]: https://github.com/opensearch-project/OpenSearch/compare/2.11...2.x