Update CHANGELOG post 2.18.0 release

Signed-off-by: Thomas Farr <[email protected]>

CHANGELOG.md

@@ -9,7 +9,6 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Bumps `com.github.jk1.dependency-license-report` from 2.8 to 2.9
 - Bumps `org.apache.httpcomponents.client5:httpclient5` from 5.4 to 5.4.1
 - Bumps `org.apache.httpcomponents.core5:httpcore5` from 5.3 to 5.3.1
-- Bump `io.github.classgraph:classgraph` from 4.8.177 to 4.8.179 ([#1302](https://github.com/opensearch-project/opensearch-java/pull/1302))
 
 This section is for maintaining a changelog for all breaking changes for the client that cannot be released in the 2.x line. All other non-breaking changes should be added to [Unreleased 2.x] section.
 
@@ -41,13 +40,10 @@ This section is for maintaining a changelog for all breaking changes for the cli
 ## [Unreleased 2.x]
 
 ### Added
-- Added support for disabling typed keys serialization ([#1296](https://github.com/opensearch-project/opensearch-java/pull/1296))
-- Added support for the `batch_size` param on the `text_embedding` processor ([#1298](https://github.com/opensearch-project/opensearch-java/pull/1298))
 
 ### Dependencies
 
 ### Changed
-- Changed AwsSdk2Transport to pre-emptively throw an exception when using AWS SDK's ApacheHttpClient to make an unsupported DELETE/GET request with a body ([#1256](https://github.com/opensearch-project/opensearch-java/pull/1256))
 
 ### Deprecated
 
@@ -57,6 +53,17 @@ This section is for maintaining a changelog for all breaking changes for the cli
 
 ### Security
 
+## [2.18.0] - 11/19/2024
+### Added
+- Added support for disabling typed keys serialization ([#1296](https://github.com/opensearch-project/opensearch-java/pull/1296))
+- Added support for the `batch_size` param on the `text_embedding` processor ([#1298](https://github.com/opensearch-project/opensearch-java/pull/1298))
+
+### Dependencies
+- Bump `io.github.classgraph:classgraph` from 4.8.177 to 4.8.179 ([#1302](https://github.com/opensearch-project/opensearch-java/pull/1302))
+
+### Changed
+- Changed AwsSdk2Transport to pre-emptively throw an exception when using AWS SDK's ApacheHttpClient to make an unsupported DELETE/GET request with a body ([#1256](https://github.com/opensearch-project/opensearch-java/pull/1256))
+
 ## [2.17.0] - 11/05/2024
 ### Added
 - Added support for `KnnVectorProperty`'s `compression_level`, `data_type`, `mode` & `space_type` properties ([#1255](https://github.com/opensearch-project/opensearch-java/pull/1255))
@@ -570,7 +577,8 @@ This section is for maintaining a changelog for all breaking changes for the cli
 ### Security
 
 [Unreleased 3.0]: https://github.com/opensearch-project/opensearch-java/compare/2.x...HEAD
-[Unreleased 2.x]: https://github.com/opensearch-project/opensearch-java/compare/v2.17.0...2.x
+[Unreleased 2.x]: https://github.com/opensearch-project/opensearch-java/compare/v2.18.0...2.x
+[2.18.0]: https://github.com/opensearch-project/opensearch-java/compare/v2.17.0...v2.18.0
 [2.17.0]: https://github.com/opensearch-project/opensearch-java/compare/v2.16.0...v2.17.0
 [2.16.0]: https://github.com/opensearch-project/opensearch-java/compare/v2.15.0...v2.16.0
 [2.15.0]: https://github.com/opensearch-project/opensearch-java/compare/v2.14.0...v2.15.0