[Metadata Immutability] Change different indices lookup objects from …

…array type to lists Changed the arrays to immutable List instances, added new versions of the getters which returns List instances. Resolves opensearch-project#8647 Signed-off-by: Abdul Muneer Kolarkunnu <[email protected]>
akolarkunnu · Jun 27, 2024 · 04928bc · 04928bc
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diff --git a/CHANGELOG-3.0.md b/CHANGELOG-3.0.md
@@ -13,6 +13,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - GHA to verify checklist items completion in PR descriptions ([#10800](https://github.com/opensearch-project/OpenSearch/pull/10800))
 - Allow to pass the list settings through environment variables (like [], ["a", "b", "c"], ...) ([#10625](https://github.com/opensearch-project/OpenSearch/pull/10625))
 - Views, simplify data access and manipulation by providing a virtual layer over one or more indices ([#11957](https://github.com/opensearch-project/OpenSearch/pull/11957))
+- Added new APIs in the Metadata to get different indices in the form of List ([#14557](https://github.com/opensearch-project/OpenSearch/pull/14557))
 
 ### Dependencies