Update gating version and add CHANGELOG entry

Signed-off-by: Atri Sharma <atri.jiit@gmail.com>

Author: atris

CHANGELOG.md

@@ -47,6 +47,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Fix QueryPhaseResultConsumer incomplete callback loops ([#19231](https://github.com/opensearch-project/OpenSearch/pull/19231))
 - Fix the `scaled_float` precision issue ([#19188](https://github.com/opensearch-project/OpenSearch/pull/19188))
 - Fix Using an excessively large reindex slice can lead to a JVM OutOfMemoryError on coordinator.([#18964](https://github.com/opensearch-project/OpenSearch/pull/18964))
+- Add alias write index policy to control writeIndex during restore([#1511](https://github.com/opensearch-project/OpenSearch/pull/19368))
 
 ### Dependencies
 - Bump `com.netflix.nebula.ospackage-base` from 12.0.0 to 12.1.0 ([#19019](https://github.com/opensearch-project/OpenSearch/pull/19019))

server/src/main/java/org/opensearch/action/admin/cluster/snapshots/restore/RestoreSnapshotRequest.java

@@ -135,7 +135,7 @@ private static StorageType fromString(String string) {
      *
      * @opensearch.api
      */
-    @PublicApi(since = "3.0.0")
+    @PublicApi(since = "3.3.0")
     public enum AliasWriteIndexPolicy {
         PRESERVE,
         STRIP_WRITE_INDEX;