Add bwcVersion 2.4.0 (opensearch-project#4455)

* Add bwcVersion 2.4.0

Signed-off-by: Suraj Singh <surajrider@gmail.com>

* Add changelog entry

Signed-off-by: Suraj Singh <surajrider@gmail.com>

Signed-off-by: Suraj Singh <surajrider@gmail.com>

Author: dreamer-89

.ci/bwcVersions

@@ -51,3 +51,4 @@ BWC_VERSION:
   - "2.2.1"
   - "2.2.2"
   - "2.3.0"
+  - "2.4.0"

CHANGELOG.md

@@ -12,6 +12,8 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Support for HTTP/2 (server-side) ([#3847](https://github.com/opensearch-project/OpenSearch/pull/3847))
 - BWC version 2.2.2 ([#4383](https://github.com/opensearch-project/OpenSearch/pull/4383))
 - Support for labels on version bump PRs, skip label support for changelog verifier ([#4391](https://github.com/opensearch-project/OpenSearch/pull/4391))
+- Update previous release bwc version to 2.4.0 ([#4455](https://github.com/opensearch-project/OpenSearch/pull/4455))
+
 ### Dependencies
 - Bumps `org.gradle.test-retry` from 1.4.0 to 1.4.1
 - Bumps `reactor-netty-core` from 1.0.19 to 1.0.22
@@ -78,4 +80,4 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 
 [Unreleased]: https://github.com/opensearch-project/OpenSearch/compare/2.2.0...HEAD
-[2.x]: https://github.com/opensearch-project/OpenSearch/compare/2.2.0...2.x
+[2.x]: https://github.com/opensearch-project/OpenSearch/compare/2.2.0...2.x

server/src/main/java/org/opensearch/Version.java

@@ -98,6 +98,7 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_2_2_1 = new Version(2020199, org.apache.lucene.util.Version.LUCENE_9_3_0);
     public static final Version V_2_2_2 = new Version(2020299, org.apache.lucene.util.Version.LUCENE_9_3_0);
     public static final Version V_2_3_0 = new Version(2030099, org.apache.lucene.util.Version.LUCENE_9_3_0);
+    public static final Version V_2_4_0 = new Version(2040099, org.apache.lucene.util.Version.LUCENE_9_3_0);
     public static final Version V_3_0_0 = new Version(3000099, org.apache.lucene.util.Version.LUCENE_9_4_0);
     public static final Version CURRENT = V_3_0_0;