Adding changelog entry

Signed-off-by: PritLadani <[email protected]>
opensearch-project · Mar 11, 2023 · 47dff7e · 47dff7e
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commit 47dff7e
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -46,6 +46,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Change http code on create index API with bad input raising NotXContentException from 500 to 400 ([#4773](https://github.com/opensearch-project/OpenSearch/pull/4773))
 - Change http code for DecommissioningFailedException from 500 to 400 ([#5283](https://github.com/opensearch-project/OpenSearch/pull/5283))
 - Improve summary error message for invalid setting updates ([#4792](https://github.com/opensearch-project/OpenSearch/pull/4792))
+- Changed http code for in-flight search tasks cancelled due to search backpressure from 500 to 429 ([#6634](https://github.com/opensearch-project/OpenSearch/pull/6634))
 
 ### Deprecated