Update CHANGELOG.md

Signed-off-by: Kiran Prakash <[email protected]>

CHANGELOG.md

@@ -6,13 +6,15 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ## [Unreleased 2.x]
 ### Added
 - Fix for hasInitiatedFetching to fix allocation explain and manual reroute APIs (([#14972](https://github.com/opensearch-project/OpenSearch/pull/14972))
-- [Workload Management] QueryGroup resource tracking framework changes ([#13897](https://github.com/opensearch-project/OpenSearch/pull/13897))
 - [Workload Management] Add queryGroupId to Task ([14708](https://github.com/opensearch-project/OpenSearch/pull/14708))
 - Add setting to ignore throttling nodes for allocation of unassigned primaries in remote restore ([#14991](https://github.com/opensearch-project/OpenSearch/pull/14991))
 - [Streaming Indexing] Enhance RestClient with a new streaming API support ([#14437](https://github.com/opensearch-project/OpenSearch/pull/14437))
 - Add basic aggregation support for derived fields ([#14618](https://github.com/opensearch-project/OpenSearch/pull/14618))
 - Add ThreadContextPermission for markAsSystemContext and allow core to perform the method ([#15016](https://github.com/opensearch-project/OpenSearch/pull/15016))
 - Add ThreadContextPermission for stashAndMergeHeaders and stashWithOrigin ([#15039](https://github.com/opensearch-project/OpenSearch/pull/15039))
+- [Concurrent Segment Search] Support composite aggregations with scripting ([#15072](https://github.com/opensearch-project/OpenSearch/pull/15072))
+- Add `rangeQuery` and `regexpQuery` for `constant_keyword` field type ([#14711](https://github.com/opensearch-project/OpenSearch/pull/14711))
+- [Workload Management] QueryGroup resource tracking framework changes ([#13897](https://github.com/opensearch-project/OpenSearch/pull/13897))
 
 ### Dependencies
 - Bump `netty` from 4.1.111.Final to 4.1.112.Final ([#15081](https://github.com/opensearch-project/OpenSearch/pull/15081))