Add release notes for 2.19 (#1167) (#1168)

Signed-off-by: Yizhe Liu <yizheliu@amazon.com>
(cherry picked from commit e081b58)

Co-authored-by: Yizhe Liu <59710443+yizheliu-amazon@users.noreply.github.com>

CHANGELOG.md

@@ -7,38 +7,16 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Features
 ### Enhancements
 ### Bug Fixes
-- Fix for nested field missing sub embedding field in text embedding processor ([#913](https://github.com/opensearch-project/neural-search/pull/913))
 ### Infrastructure
 ### Documentation
 ### Maintenance
 ### Refactoring
 
-## [Unreleased 2.x](https://github.com/opensearch-project/neural-search/compare/2.18...2.x)
+## [Unreleased 2.x](https://github.com/opensearch-project/neural-search/compare/2.19...2.x)
 ### Features
-- Pagination in Hybrid query ([#1048](https://github.com/opensearch-project/neural-search/pull/1048))
-- Implement Reciprocal Rank Fusion score normalization/combination technique in hybrid query ([#874](https://github.com/opensearch-project/neural-search/pull/874))
 ### Enhancements
-- Explainability in hybrid query ([#970](https://github.com/opensearch-project/neural-search/pull/970))
-- Implement pruning for neural sparse ingestion pipeline and two phase search processor ([#988](https://github.com/opensearch-project/neural-search/pull/988))
-- Support new knn query parameter expand_nested ([#1013](https://github.com/opensearch-project/neural-search/pull/1013))
-- Support empty string for fields in text embedding processor ([#1041](https://github.com/opensearch-project/neural-search/pull/1041))
-- Optimize ML inference connection retry logic ([#1054](https://github.com/opensearch-project/neural-search/pull/1054))
-- Support for builder constructor in Neural Query Builder ([#1047](https://github.com/opensearch-project/neural-search/pull/1047))
-- Validate Disjunction query to avoid having nested hybrid query ([#1127](https://github.com/opensearch-project/neural-search/pull/1127))
 ### Bug Fixes
-- Address inconsistent scoring in hybrid query results ([#998](https://github.com/opensearch-project/neural-search/pull/998))
-- Fix bug where ingested document has list of nested objects ([#1040](https://github.com/opensearch-project/neural-search/pull/1040))
-- Fixed document source and score field mismatch in sorted hybrid queries ([#1043](https://github.com/opensearch-project/neural-search/pull/1043))
-- Update NeuralQueryBuilder doEquals() and doHashCode() to cater the missing parameters information ([#1045](https://github.com/opensearch-project/neural-search/pull/1045)).
-- Fix bug where embedding is missing when ingested document has "." in field name, and mismatches fieldMap config ([#1062](https://github.com/opensearch-project/neural-search/pull/1062))
-- Fix explain exception in hybrid queries with partial subquery matches ([#1123](https://github.com/opensearch-project/neural-search/pull/1123))
-- Handle pagination_depth when from =0 and removes default value of pagination_depth ([#1132](https://github.com/opensearch-project/neural-search/pull/1132))
-- Fix single shard pagination issue of from ([#1140](https://github.com/opensearch-project/neural-search/pull/1140))
 ### Infrastructure
-- Update batch related tests to use batch_size in processor & refactor BWC version check ([#852](https://github.com/opensearch-project/neural-search/pull/852))
-- Fix CI for JDK upgrade towards 21 ([#835](https://github.com/opensearch-project/neural-search/pull/835))
 ### Documentation
 ### Maintenance
-- Add reindex integration tests for ingest processors ([#1075](https://github.com/opensearch-project/neural-search/pull/1075))
-- Fix github CI by adding eclipse dependency in formatting.gradle ([#1079](https://github.com/opensearch-project/neural-search/pull/1079))
 ### Refactoring

release-notes/opensearch-neural-search.release-notes-2.19.0.0.md

@@ -0,0 +1,24 @@
+## Version 2.19.0.0 Release Notes
+
+Compatible with OpenSearch 2.19.0
+
+### Features
+* Pagination in Hybrid query ([#1048](https://github.com/opensearch-project/neural-search/pull/1048))
+* Implement Reciprocal Rank Fusion score normalization/combination technique in hybrid query ([#874](https://github.com/opensearch-project/neural-search/pull/874))
+### Bug Fixes
+* Address inconsistent scoring in hybrid query results ([#998](https://github.com/opensearch-project/neural-search/pull/998))
+* Fix bug where ingested document has list of nested objects ([#1040](https://github.com/opensearch-project/neural-search/pull/1040))
+* Fixed document source and score field mismatch in sorted hybrid queries ([#1043](https://github.com/opensearch-project/neural-search/pull/1043))
+* Update NeuralQueryBuilder doEquals() and doHashCode() to cater the missing parameters information ([#1045](https://github.com/opensearch-project/neural-search/pull/1045)).
+* Fix bug where embedding is missing when ingested document has "." in field name, and mismatches fieldMap config ([#1062](https://github.com/opensearch-project/neural-search/pull/1062))
+### Enhancements
+* Explainability in hybrid query ([#970](https://github.com/opensearch-project/neural-search/pull/970))
+* Support new knn query parameter expand_nested ([#1013](https://github.com/opensearch-project/neural-search/pull/1013))
+* Implement pruning for neural sparse ingestion pipeline and two phase search processor ([#988](https://github.com/opensearch-project/neural-search/pull/988))
+* Support empty string for fields in text embedding processor ([#1041](https://github.com/opensearch-project/neural-search/pull/1041))
+* Optimize ML inference connection retry logic ([#1054](https://github.com/opensearch-project/neural-search/pull/1054))
+* Support for builder constructor in Neural Query Builder ([#1047](https://github.com/opensearch-project/neural-search/pull/1047))
+* Validate Disjunction query to avoid having nested hybrid query ([#1127](https://github.com/opensearch-project/neural-search/pull/1127))
+### Maintenance
+* Add reindex integration tests for ingest processors ([#1075](https://github.com/opensearch-project/neural-search/pull/1075))
+* Fix github CI by adding eclipse dependency in formatting.gradle ([#1079](https://github.com/opensearch-project/neural-search/pull/1079))