diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7964d8176e04..d97f3082bc0ed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -124,37 +124,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ### Changed
 - Allow composite aggregation to run under a parent filter aggregation ([#11499](https://github.com/opensearch-project/OpenSearch/pull/11499))
-- Mute the query profile IT with concurrent execution ([#9840](https://github.com/opensearch-project/OpenSearch/pull/9840))
-- Force merge with `only_expunge_deletes` honors max segment size ([#10036](https://github.com/opensearch-project/OpenSearch/pull/10036))
-- Add the means to extract the contextual properties from HttpChannel, TcpCChannel and TrasportChannel without excessive typecasting ([#10562](https://github.com/opensearch-project/OpenSearch/pull/10562)), ([#11751](https://github.com/opensearch-project/OpenSearch/pull/11751))
-- Introduce new dynamic cluster setting to control slice computation for concurrent segment search ([#9107](https://github.com/opensearch-project/OpenSearch/pull/9107))
-- Search pipelines now support asynchronous request and response processors to avoid blocking on a transport thread ([#10598](https://github.com/opensearch-project/OpenSearch/pull/10598))
-- [Remote Store] Add Remote Store backpressure rejection stats to `_nodes/stats` ([#10524](https://github.com/opensearch-project/OpenSearch/pull/10524))
-- [BUG] Fix java.lang.SecurityException in repository-gcs plugin ([#10642](https://github.com/opensearch-project/OpenSearch/pull/10642))
-- Add telemetry tracer/metric enable flag and integ test. ([#10395](https://github.com/opensearch-project/OpenSearch/pull/10395))
-- Performance improvement for Datetime field caching ([#4558](https://github.com/opensearch-project/OpenSearch/issues/4558))
-- Add instrumentation for indexing in transport bulk action and transport shard bulk action. ([#10273](https://github.com/opensearch-project/OpenSearch/pull/10273))
-- Disallow removing some metadata fields by remove ingest processor ([#10895](https://github.com/opensearch-project/OpenSearch/pull/10895), [#11607](https://github.com/opensearch-project/OpenSearch/pull/11607))
-- Performance improvement for MultiTerm Queries on Keyword fields ([#7057](https://github.com/opensearch-project/OpenSearch/issues/7057))
-- Refactor common parts from the Rounding class into a separate 'round' package ([#11023](https://github.com/opensearch-project/OpenSearch/issues/11023))
-- Performance improvement for date histogram aggregations without sub-aggregations ([#11083](https://github.com/opensearch-project/OpenSearch/pull/11083))
-- Apply the fast filter optimization to composite aggregation of date histogram source ([#11505](https://github.com/opensearch-project/OpenSearch/pull/11083))
-- Disable concurrent aggs for Diversified Sampler and Sampler aggs ([#11087](https://github.com/opensearch-project/OpenSearch/issues/11087))
-- Made leader/follower check timeout setting dynamic ([#10528](https://github.com/opensearch-project/OpenSearch/pull/10528))
-- Improved performance of numeric exact-match queries ([#11209](https://github.com/opensearch-project/OpenSearch/pull/11209))
-- Change error message when per shard document limit is breached ([#11312](https://github.com/opensearch-project/OpenSearch/pull/11312))
-- Improve boolean parsing performance ([#11308](https://github.com/opensearch-project/OpenSearch/pull/11308))
-- Interpret byte array as primitive using VarHandles ([#11362](https://github.com/opensearch-project/OpenSearch/pull/11362))
-- Automatically add scheme to discovery.ec2.endpoint ([#11512](https://github.com/opensearch-project/OpenSearch/pull/11512))
-- Restore support for Java 8 for RestClient ([#11562](https://github.com/opensearch-project/OpenSearch/pull/11562))
-- Add deleted doc count in _cat/shards ([#11678](https://github.com/opensearch-project/OpenSearch/pull/11678))
-- Capture information for additional query types and aggregation types ([#11582](https://github.com/opensearch-project/OpenSearch/pull/11582))
-- Use slice_size == shard_size heuristic in terms aggs for concurrent segment search and properly calculate the doc_count_error ([#11732](https://github.com/opensearch-project/OpenSearch/pull/11732))
-- Added Support for dynamically adding SearchRequestOperationsListeners with SearchRequestOperationsCompositeListenerFactory ([#11526](https://github.com/opensearch-project/OpenSearch/pull/11526))
-- Ensure Jackson default maximums introduced in 2.16.0 do not conflict with OpenSearch settings ([#11890](https://github.com/opensearch-project/OpenSearch/pull/11890))
-- Extract cluster management for integration tests into JUnit test rule out of OpenSearchIntegTestCase ([#11877](https://github.com/opensearch-project/OpenSearch/pull/11877)), ([#12000](https://github.com/opensearch-project/OpenSearch/pull/12000))
-- Workaround for https://bugs.openjdk.org/browse/JDK-8323659 regression, introduced in JDK-21.0.2 ([#11968](https://github.com/opensearch-project/OpenSearch/pull/11968))
-- Updates IpField to be searchable when only `doc_values` are enabled ([#11508](https://github.com/opensearch-project/OpenSearch/pull/11508))
 - Add ability for Boolean and date field queries to run when only doc_values are enabled ([#11650](https://github.com/opensearch-project/OpenSearch/pull/11650))
 
 ### Deprecated