diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a049f1d245fe..596fc9212e0f0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,129 +3,19 @@ All notable changes to this project are documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). See the [CONTRIBUTING guide](./CONTRIBUTING.md#Changelog) for instructions on how to add changelog entries.
 
-## [Unreleased 2.x]
+## [Unreleased 2.9]
 ### Added
-- [SearchPipeline] Add new search pipeline processor type, SearchPhaseResultsProcessor, that can modify the result of one search phase before starting the next phase.([#7283](https://github.com/opensearch-project/OpenSearch/pull/7283))
-- Add task cancellation monitoring service ([#7642](https://github.com/opensearch-project/OpenSearch/pull/7642))
-- Add TokenManager Interface ([#7452](https://github.com/opensearch-project/OpenSearch/pull/7452))
-- Add Remote store as a segment replication source ([#7653](https://github.com/opensearch-project/OpenSearch/pull/7653))
-- Implement concurrent aggregations support without profile option ([#7514](https://github.com/opensearch-project/OpenSearch/pull/7514))
-- Add dynamic index and cluster setting for concurrent segment search ([#7956](https://github.com/opensearch-project/OpenSearch/pull/7956))
-- Add descending order search optimization through reverse segment read. ([#7967](https://github.com/opensearch-project/OpenSearch/pull/7967))
-- [Search pipelines] Added search pipelines output to node stats ([#8053](https://github.com/opensearch-project/OpenSearch/pull/8053))
-- Update components of segrep backpressure to support remote store. ([#8020](https://github.com/opensearch-project/OpenSearch/pull/8020))
-- Make remote cluster connection setup in async ([#8038](https://github.com/opensearch-project/OpenSearch/pull/8038))
-- Add API to initialize extensions ([#8029]()https://github.com/opensearch-project/OpenSearch/pull/8029)
-- Added GeoBounds aggregation on GeoShape field type.([#4266](https://github.com/opensearch-project/OpenSearch/pull/4266))
-- Addition of Doc values on the GeoShape Field
-- Addition of GeoShape ValueSource level code interfaces for accessing the DocValues.
-- Addition of Missing Value feature in the GeoShape Aggregations.
-- Enable Point based optimization for custom comparators ([#8168](https://github.com/opensearch-project/OpenSearch/pull/8168))
-- Add GeoTile and GeoHash Grid aggregations on GeoShapes. ([#5589](https://github.com/opensearch-project/OpenSearch/pull/5589))
-- Add distributed tracing framework ([#7543](https://github.com/opensearch-project/OpenSearch/issues/7543))
-- [Extensions] Support extension additional settings with extension REST initialization ([#8414](https://github.com/opensearch-project/OpenSearch/pull/8414))
-- Adds mock implementation for TelemetryPlugin ([#7545](https://github.com/opensearch-project/OpenSearch/issues/7545))
-- Create concept of persistent ThreadContext headers that are unstashable ([#8291]()https://github.com/opensearch-project/OpenSearch/pull/8291)
-- [Search pipelines] Add Global Ignore_failure options for Processors ([#8373](https://github.com/opensearch-project/OpenSearch/pull/8373))
-- Enable Partial Flat Object ([#7997](https://github.com/opensearch-project/OpenSearch/pull/7997))
-- Add partial results support for concurrent segment search ([#8306](https://github.com/opensearch-project/OpenSearch/pull/8306))
-- Introduce full support for Search Pipeline ([#8613](https://github.com/opensearch-project/OpenSearch/pull/8613))
 
 ### Dependencies
-- Bump `com.azure:azure-storage-common` from 12.21.0 to 12.21.1 (#7566, #7814)
-- Bump `com.google.guava:guava` from 30.1.1-jre to 32.1.1-jre (#7565, #7811, #7807, #7808, #8402, #8400, #8401, #8581)
-- Bump `net.minidev:json-smart` from 2.4.10 to 2.4.11 (#7660, #7812)
-- Bump `org.gradle.test-retry` from 1.5.2 to 1.5.3 (#7810)
-- Bump `com.diffplug.spotless` from 6.17.0 to 6.18.0 (#7896)
-- Bump `jackson` from 2.15.1 to 2.15.2 ([#7897](https://github.com/opensearch-project/OpenSearch/pull/7897))
-- Add `com.github.luben:zstd-jni` version 1.5.5-3 ([#2996](https://github.com/opensearch-project/OpenSearch/pull/2996))
-- Bump `netty` from 4.1.91.Final to 4.1.93.Final ([#7901](https://github.com/opensearch-project/OpenSearch/pull/7901))
-- Bump `com.amazonaws` 1.12.270 to `software.amazon.awssdk` 2.20.55 ([7372](https://github.com/opensearch-project/OpenSearch/pull/7372/))
-- Add `org.reactivestreams` 1.0.4 ([7372](https://github.com/opensearch-project/OpenSearch/pull/7372/))
-- Bump `com.networknt:json-schema-validator` from 1.0.81 to 1.0.85 ([7968], #8255)
-- Bump `com.netflix.nebula:gradle-extra-configurations-plugin` from 9.0.0 to 10.0.0 in /buildSrc ([#7068](https://github.com/opensearch-project/OpenSearch/pull/7068))
-- Bump `com.google.guava:guava` from 32.0.0-jre to 32.0.1-jre (#8009)
-- Bump `commons-io:commons-io` from 2.12.0 to 2.13.0 (#8014, #8013, #8010)
-- Bump `com.diffplug.spotless` from 6.18.0 to 6.19.0 (#8007)
-- Bump `'com.azure:azure-storage-blob` to 12.22.2 from 12.21.1 ([#8043](https://github.com/opensearch-project/OpenSearch/pull/8043))
-- Bump `org.jruby.joni:joni` from 2.1.48 to 2.2.1 (#8015, #8254)
-- Bump `com.google.guava:guava` from 32.0.0-jre to 32.0.1-jre ([#8011](https://github.com/opensearch-project/OpenSearch/pull/8011), [#8012](https://github.com/opensearch-project/OpenSearch/pull/8012), [#8107](https://github.com/opensearch-project/OpenSearch/pull/8107))
-- Bump `io.projectreactor:reactor-core` from 3.4.18 to 3.5.6 in /plugins/repository-azure ([#8016](https://github.com/opensearch-project/OpenSearch/pull/8016))
-- Bump `spock-core` from 2.1-groovy-3.0 to 2.3-groovy-3.0 ([#8122](https://github.com/opensearch-project/OpenSearch/pull/8122))
-- Bump `com.networknt:json-schema-validator` from 1.0.83 to 1.0.84 (#8141)
-- Bump `com.netflix.nebula:gradle-info-plugin` from 12.1.3 to 12.1.5 (#8139, #8568)
-- Bump `commons-io:commons-io` from 2.12.0 to 2.13.0 in /plugins/discovery-azure-classic ([#8140](https://github.com/opensearch-project/OpenSearch/pull/8140))
-- Bump `mockito` from 5.2.0 to 5.4.0 ([#8181](https://github.com/opensearch-project/OpenSearch/pull/8181))
-- Bump `netty` from 4.1.93.Final to 4.1.94.Final ([#8191](https://github.com/opensearch-project/OpenSearch/pull/8191))
-- Bump `org.apache.hadoop:hadoop-minicluster` from 3.3.5 to 3.3.6 (#8257)
-- Bump `io.projectreactor.netty:reactor-netty-http` from 1.1.7 to 1.1.8 (#8256)
-- [Upgrade] Lucene 9.7.0 release (#8272)
-- Bump `org.jboss.resteasy:resteasy-jackson2-provider` from 3.0.26.Final to 6.2.4.Final in /qa/wildfly ([#8209](https://github.com/opensearch-project/OpenSearch/pull/8209))
-- Bump `com.google.api-client:google-api-client` from 1.34.0 to 2.2.0 ([#8276](https://github.com/opensearch-project/OpenSearch/pull/8276))
-- Bump `org.bouncycastle:bcprov-jdk15on` to `org.bouncycastle:bcprov-jdk15to18` version 1.75 ([#8247](https://github.com/opensearch-project/OpenSearch/pull/8247))
-- Bump `org.bouncycastle:bcmail-jdk15on` to `org.bouncycastle:bcmail-jdk15to18` version 1.75 ([#8247](https://github.com/opensearch-project/OpenSearch/pull/8247))
-- Bump `org.bouncycastle:bcpkix-jdk15on` to `org.bouncycastle:bcpkix-jdk15to18` version 1.75 ([#8247](https://github.com/opensearch-project/OpenSearch/pull/8247))
-- Update Apache HttpCore / HttpClient dependencies ([#8434](https://github.com/opensearch-project/OpenSearch/pull/8434))
-- Bump `avro` from 1.11.1 to 1.11.2 ([#8404](https://github.com/opensearch-project/OpenSearch/pull/8404))
-- Bump `org.apache.maven:maven-model` from 3.9.2 to 3.9.3 ([#8403](https://github.com/opensearch-project/OpenSearch/pull/8403))
-- Bump `io.projectreactor.netty:reactor-netty` and `io.projectreactor.netty:reactor-netty-core` from 1.1.7 to 1.1.8 ([#8405](https://github.com/opensearch-project/OpenSearch/pull/8405))
-- Bump `com.google.cloud:google-cloud-core-http` from 2.17.0 to 2.21.0 ([#8586](https://github.com/opensearch-project/OpenSearch/pull/8586))
-- Bump `com.networknt:json-schema-validator` from 1.0.85 to 1.0.86 ([#8573](https://github.com/opensearch-project/OpenSearch/pull/8573))
-- Bump `com.google.jimfs:jimfs` from 1.2 to 1.3.0 (#8577)
 
 ### Changed
-- Replace jboss-annotations-api_1.2_spec with jakarta.annotation-api ([#7836](https://github.com/opensearch-project/OpenSearch/pull/7836))
-- Reduce memory copy in zstd compression ([#7681](https://github.com/opensearch-project/OpenSearch/pull/7681))
-- Add min, max, average and thread info to resource stats in tasks API ([#7673](https://github.com/opensearch-project/OpenSearch/pull/7673))
-- Add ZSTD compression for snapshotting ([#2996](https://github.com/opensearch-project/OpenSearch/pull/2996))
-- Change `com.amazonaws.sdk.ec2MetadataServiceEndpointOverride` to `aws.ec2MetadataServiceEndpoint` ([7372](https://github.com/opensearch-project/OpenSearch/pull/7372/))
-- Change `com.amazonaws.sdk.stsEndpointOverride` to `aws.stsEndpointOverride` ([7372](https://github.com/opensearch-project/OpenSearch/pull/7372/))
-- Add new query profile collector fields with concurrent search execution ([#7898](https://github.com/opensearch-project/OpenSearch/pull/7898))
-- Align range and default value for deletes_pct_allowed in merge policy ([#7730](https://github.com/opensearch-project/OpenSearch/pull/7730))
-- Rename QueryPhase actors like Suggest, Rescore to be processors rather than phase ([#8025](https://github.com/opensearch-project/OpenSearch/pull/8025))
-- [Snapshot Interop] Add Changes in Create Snapshot Flow for remote store interoperability. ([#8071](https://github.com/opensearch-project/OpenSearch/pull/8071))
-- Allow insecure string settings to warn-log usage and advise to migration of a newer secure variant ([#5496](https://github.com/opensearch-project/OpenSearch/pull/5496))
-- Pass localNode info to all plugins on node start ([#7919](https://github.com/opensearch-project/OpenSearch/pull/7919)
-- Compress and cache cluster state during validate join request ([#7321](https://github.com/opensearch-project/OpenSearch/pull/7321))
-- [Refactor] Sets util from server to common lib ([#8230](https://github.com/opensearch-project/OpenSearch/pull/8230))
-- [Refactor] Metadata members from ImmutableOpenMap to j.u.Map ([#7165](https://github.com/opensearch-project/OpenSearch/pull/7165))
-- [Refactor] more ImmutableOpenMap to jdk Map in cluster package ([#7301](https://github.com/opensearch-project/OpenSearch/pull/7301))
-- [Refactor] ImmutableOpenMap to j.u.Map in IndexMetadata ([#7306](https://github.com/opensearch-project/OpenSearch/pull/7306))
-- Add self-organizing hash table to improve the performance of bucket aggregations ([#7652](https://github.com/opensearch-project/OpenSearch/pull/7652))
-- Check UTF16 string size before converting to String to avoid OOME ([#7963](https://github.com/opensearch-project/OpenSearch/pull/7963))
-- [Refactor] remaining ImmutableOpenMap usage to j.u.Map and remove class ([#7309](https://github.com/opensearch-project/OpenSearch/pull/7309))
-- [Refactor] Version and LegacyESVersion from server module to core lib ([#7328](https://github.com/opensearch-project/OpenSearch/pull/7328))
-- [Refactor] Stream Reader and Write Generics ([#7465](https://github.com/opensearch-project/OpenSearch/pull/7465))
-- [Refactor] OpenSearchException and ExceptionsHelper foundation to base class ([#7508](https://github.com/opensearch-project/OpenSearch/pull/7508))
-- Move ZSTD compression codecs out of the sandbox ([#7908](https://github.com/opensearch-project/OpenSearch/pull/7908))
-- Update ZSTD default compression level ([#8471](https://github.com/opensearch-project/OpenSearch/pull/8471))
-- Enabling compression levels for zstd and zstd_no_dict ([#8312](https://github.com/opensearch-project/OpenSearch/pull/8312))
-- Improved performance of parsing floating point numbers ([#8467](https://github.com/opensearch-project/OpenSearch/pull/8467))
-- [Search Pipelines] Pass pipeline creation context to processor factories ([#8164](https://github.com/opensearch-project/OpenSearch/pull/8164))
-- Move span actions to Scope ([#8411](https://github.com/opensearch-project/OpenSearch/pull/8411))
-- [Refactor] OpenSearchException streamables to a registry ([#7646](https://github.com/opensearch-project/OpenSearch/pull/7646))
-- [Refactor] Serverless common classes to libraries ([#8065](https://github.com/opensearch-project/OpenSearch/pull/8065))
-- [Refactor] StreamIO and OpenSearchException foundation to core library ([#8035](https://github.com/opensearch-project/OpenSearch/pull/8035))
-- Move span actions to Scope ([#8411](https://github.com/opensearch-project/OpenSearch/pull/8411))
-- Add wrapper tracer implementation ([#8565](https://github.com/opensearch-project/OpenSearch/pull/8565))
-- Fix painless casting bug, which crashes the OpenSearch process ([#8315](https://github.com/opensearch-project/OpenSearch/pull/8315))
 
 ### Deprecated
 
 ### Removed
-- Remove `COMPRESSOR` variable from `CompressorFactory` and use `DEFLATE_COMPRESSOR` instead ([7907](https://github.com/opensearch-project/OpenSearch/pull/7907))
-- Remove concurrency based minimum file cache size restriction ([#8294](https://github.com/opensearch-project/OpenSearch/pull/8294))
 
 ### Fixed
-- Fixing error: adding a new/forgotten parameter to the configuration for checking the config on startup in plugins/repository-s3 #7924
-- Enforce 512 byte document ID limit in bulk updates ([#8039](https://github.com/opensearch-project/OpenSearch/pull/8039))
-- With only GlobalAggregation in request causes unnecessary wrapping with MultiCollector ([#8125](https://github.com/opensearch-project/OpenSearch/pull/8125))
-- Fix mapping char_filter when mapping a hashtag ([#7591](https://github.com/opensearch-project/OpenSearch/pull/7591))
-- Fix NPE in multiterms aggregations involving empty buckets ([#7318](https://github.com/opensearch-project/OpenSearch/pull/7318))
-- Precise system clock time in MasterService debug logs ([#7902](https://github.com/opensearch-project/OpenSearch/pull/7902))
-- Adds log4j configuration for telemetry LogSpanExporter ([#8393](https://github.com/opensearch-project/OpenSearch/pull/8393))
-- Improve indexing performance for flat_object type ([#7855](https://github.com/opensearch-project/OpenSearch/pull/7855))
 
 ### Security
 
-[Unreleased 2.x]: https://github.com/opensearch-project/OpenSearch/compare/2.8...2.x
+[Unreleased 2.9]: https://github.com/opensearch-project/OpenSearch/compare/2.9...2.x
diff --git a/release-notes/opensearch.release-notes-2.9.0.md b/release-notes/opensearch.release-notes-2.9.0.md
new file mode 100644
index 0000000000000..76d2d9f4593d6
--- /dev/null
+++ b/release-notes/opensearch.release-notes-2.9.0.md
@@ -0,0 +1,109 @@
+## 2023-07-13 Version 2.9.0 Release Notes
+
+## [2.9]
+
+### Added
+- [SearchPipeline] Add new search pipeline processor type, SearchPhaseResultsProcessor, that can modify the result of one search phase before starting the next phase.([#7283](https://github.com/opensearch-project/OpenSearch/pull/7283))
+- Add task cancellation monitoring service ([#7642](https://github.com/opensearch-project/OpenSearch/pull/7642))
+- Add TokenManager Interface ([#7452](https://github.com/opensearch-project/OpenSearch/pull/7452))
+- Add Remote store as a segment replication source ([#7653](https://github.com/opensearch-project/OpenSearch/pull/7653))
+- Implement concurrent aggregations support without profile option ([#7514](https://github.com/opensearch-project/OpenSearch/pull/7514))
+- Add dynamic index and cluster setting for concurrent segment search ([#7956](https://github.com/opensearch-project/OpenSearch/pull/7956))
+- Add descending order search optimization through reverse segment read. ([#7967](https://github.com/opensearch-project/OpenSearch/pull/7967))
+- [Search pipelines] Added search pipelines output to node stats ([#8053](https://github.com/opensearch-project/OpenSearch/pull/8053))
+- Update components of segrep backpressure to support remote store. ([#8020](https://github.com/opensearch-project/OpenSearch/pull/8020))
+- Make remote cluster connection setup in async ([#8038](https://github.com/opensearch-project/OpenSearch/pull/8038))
+- Add API to initialize extensions ([#8029]()https://github.com/opensearch-project/OpenSearch/pull/8029)
+- Add distributed tracing framework ([#7543](https://github.com/opensearch-project/OpenSearch/issues/7543))
+- Enable Point based optimization for custom comparators ([#8168](https://github.com/opensearch-project/OpenSearch/pull/8168))
+- [Extensions] Support extension additional settings with extension REST initialization ([#8414](https://github.com/opensearch-project/OpenSearch/pull/8414))
+- Adds mock implementation for TelemetryPlugin ([#7545](https://github.com/opensearch-project/OpenSearch/issues/7545))
+- Support transport action names when registering NamedRoutes ([#7957](https://github.com/opensearch-project/OpenSearch/pull/7957))
+- Create concept of persistent ThreadContext headers that are unstashable ([#8291]()https://github.com/opensearch-project/OpenSearch/pull/8291)
+- [Search pipelines] Add Global Ignore_failure options for Processors ([#8373](https://github.com/opensearch-project/OpenSearch/pull/8373))
+- Enable Partial Flat Object ([#7997](https://github.com/opensearch-project/OpenSearch/pull/7997))
+- Add jdk.incubator.vector module support for JDK 20+ ([#8601](https://github.com/opensearch-project/OpenSearch/pull/8601))
+- Introduce full support for Search Pipeline ([#8613](https://github.com/opensearch-project/OpenSearch/pull/8613))
+- Add partial results support for concurrent segment search ([#8306](https://github.com/opensearch-project/OpenSearch/pull/8306))
+
+### Dependencies
+- Bump `com.azure:azure-storage-common` from 12.21.0 to 12.21.1 (#7566, #7814)
+- Bump `com.google.guava:guava` from 30.1.1-jre to 32.1.1-jre (#7565, #7811, #7807, #7808, #8402, #8400, #8401, #8581)
+- Bump `net.minidev:json-smart` from 2.4.10 to 2.4.11 (#7660, #7812)
+- Bump `org.gradle.test-retry` from 1.5.2 to 1.5.3 (#7810)
+- Bump `com.diffplug.spotless` from 6.17.0 to 6.18.0 (#7896)
+- Bump `jackson` from 2.15.1 to 2.15.2 ([#7897](https://github.com/opensearch-project/OpenSearch/pull/7897))
+- Add `com.github.luben:zstd-jni` version 1.5.5-3 ([#2996](https://github.com/opensearch-project/OpenSearch/pull/2996))
+- Bump `netty` from 4.1.91.Final to 4.1.93.Final ([#7901](https://github.com/opensearch-project/OpenSearch/pull/7901))
+- Bump `com.amazonaws` 1.12.270 to `software.amazon.awssdk` 2.20.55 ([7372](https://github.com/opensearch-project/OpenSearch/pull/7372/))
+- Add `org.reactivestreams` 1.0.4 ([7372](https://github.com/opensearch-project/OpenSearch/pull/7372/))
+- Bump `com.networknt:json-schema-validator` from 1.0.81 to 1.0.85 ([7968], #8255)
+- Bump `com.netflix.nebula:gradle-extra-configurations-plugin` from 9.0.0 to 10.0.0 in /buildSrc ([#7068](https://github.com/opensearch-project/OpenSearch/pull/7068))
+- Bump `com.google.guava:guava` from 32.0.0-jre to 32.0.1-jre (#8009)
+- Bump `commons-io:commons-io` from 2.12.0 to 2.13.0 (#8014, #8013, #8010)
+- Bump `com.diffplug.spotless` from 6.18.0 to 6.19.0 (#8007)
+- Bump `'com.azure:azure-storage-blob` to 12.22.2 from 12.21.1 ([#8043](https://github.com/opensearch-project/OpenSearch/pull/8043))
+- Bump `org.jruby.joni:joni` from 2.1.48 to 2.2.1 (#8015, #8254)
+- Bump `com.google.guava:guava` from 32.0.0-jre to 32.0.1-jre ([#8011](https://github.com/opensearch-project/OpenSearch/pull/8011), [#8012](https://github.com/opensearch-project/OpenSearch/pull/8012), [#8107](https://github.com/opensearch-project/OpenSearch/pull/8107))
+- Bump `io.projectreactor:reactor-core` from 3.4.18 to 3.5.6 in /plugins/repository-azure ([#8016](https://github.com/opensearch-project/OpenSearch/pull/8016))
+- Bump `spock-core` from 2.1-groovy-3.0 to 2.3-groovy-3.0 ([#8122](https://github.com/opensearch-project/OpenSearch/pull/8122))
+- Bump `com.networknt:json-schema-validator` from 1.0.83 to 1.0.84 (#8141)
+- Bump `com.netflix.nebula:gradle-info-plugin` from 12.1.3 to 12.1.5 (#8139, #8568)
+- Bump `commons-io:commons-io` from 2.12.0 to 2.13.0 in /plugins/discovery-azure-classic ([#8140](https://github.com/opensearch-project/OpenSearch/pull/8140))
+- Bump `mockito` from 5.2.0 to 5.4.0 ([#8181](https://github.com/opensearch-project/OpenSearch/pull/8181))
+- Bump `netty` from 4.1.93.Final to 4.1.94.Final ([#8191](https://github.com/opensearch-project/OpenSearch/pull/8191))
+- Bump `org.apache.hadoop:hadoop-minicluster` from 3.3.5 to 3.3.6 (#8257)
+- Bump `io.projectreactor.netty:reactor-netty-http` from 1.1.7 to 1.1.8 (#8256)
+- [Upgrade] Lucene 9.7.0 release (#8272)
+- Bump `org.jboss.resteasy:resteasy-jackson2-provider` from 3.0.26.Final to 6.2.4.Final in /qa/wildfly ([#8209](https://github.com/opensearch-project/OpenSearch/pull/8209))
+- Bump `com.google.api-client:google-api-client` from 1.34.0 to 2.2.0 ([#8276](https://github.com/opensearch-project/OpenSearch/pull/8276))
+- Update Apache HttpCore/ HttpClient and Apache HttpCore5 / HttpClient5 dependencies ([#8434](https://github.com/opensearch-project/OpenSearch/pull/8434))
+- Bump `org.apache.maven:maven-model` from 3.9.2 to 3.9.3 (#8403)
+- Bump `io.projectreactor.netty:reactor-netty` and `io.projectreactor.netty:reactor-netty-core` from 1.1.7 to 1.1.8 (#8405)
+- Bump `com.azure:azure-storage-blob` from 12.22.2 to 12.22.3 (#8572)
+- Bump `net.minidev:json-smart` from 2.4.11 to 2.5.0 (#8575, #8576)
+- Bump `com.google.jimfs:jimfs` from 1.2 to 1.3.0 (#8577, #8571)
+- Bump `com.networknt:json-schema-validator` from 1.0.85 to 1.0.86 ([#8573](https://github.com/opensearch-project/OpenSearch/pull/8573))
+- Bump `com.google.cloud:google-cloud-core-http` from 2.17.0 to 2.21.0 ([#8586](https://github.com/opensearch-project/OpenSearch/pull/8586))
+- Bump `com.google.jimfs:jimfs` from 1.2 to 1.3.0 ([#8585](https://github.com/opensearch-project/OpenSearch/pull/8585))
+
+### Changed
+- Replace jboss-annotations-api_1.2_spec with jakarta.annotation-api ([#7836](https://github.com/opensearch-project/OpenSearch/pull/7836))
+- Reduce memory copy in zstd compression ([#7681](https://github.com/opensearch-project/OpenSearch/pull/7681))
+- Add min, max, average and thread info to resource stats in tasks API ([#7673](https://github.com/opensearch-project/OpenSearch/pull/7673))
+- Add ZSTD compression for snapshotting ([#2996](https://github.com/opensearch-project/OpenSearch/pull/2996))
+- Change `com.amazonaws.sdk.ec2MetadataServiceEndpointOverride` to `aws.ec2MetadataServiceEndpoint` ([7372](https://github.com/opensearch-project/OpenSearch/pull/7372/))
+- Change `com.amazonaws.sdk.stsEndpointOverride` to `aws.stsEndpointOverride` ([7372](https://github.com/opensearch-project/OpenSearch/pull/7372/))
+- Add new query profile collector fields with concurrent search execution ([#7898](https://github.com/opensearch-project/OpenSearch/pull/7898))
+- Align range and default value for deletes_pct_allowed in merge policy ([#7730](https://github.com/opensearch-project/OpenSearch/pull/7730))
+- Rename QueryPhase actors like Suggest, Rescore to be processors rather than phase ([#8025](https://github.com/opensearch-project/OpenSearch/pull/8025))
+- Compress and cache cluster state during validate join request ([#7321](https://github.com/opensearch-project/OpenSearch/pull/7321))
+- [Snapshot Interop] Add Changes in Create Snapshot Flow for remote store interoperability. ([#7118](https://github.com/opensearch-project/OpenSearch/pull/7118))
+- Allow insecure string settings to warn-log usage and advise to migration of a newer secure variant ([#5496](https://github.com/opensearch-project/OpenSearch/pull/5496))
+- Add self-organizing hash table to improve the performance of bucket aggregations ([#7652](https://github.com/opensearch-project/OpenSearch/pull/7652))
+- Check UTF16 string size before converting to String to avoid OOME ([#7963](https://github.com/opensearch-project/OpenSearch/pull/7963))
+- Move ZSTD compression codecs out of the sandbox ([#7908](https://github.com/opensearch-project/OpenSearch/pull/7908))
+- Update ZSTD default compression level ([#8471](https://github.com/opensearch-project/OpenSearch/pull/8471))
+- [Search Pipelines] Pass pipeline creation context to processor factories ([#8164](https://github.com/opensearch-project/OpenSearch/pull/8164))
+- Enabling compression levels for zstd and zstd_no_dict ([#8312](https://github.com/opensearch-project/OpenSearch/pull/8312))
+- Optimize Metadata build() to skip redundant computations as part of ClusterState build ([#7853](https://github.com/opensearch-project/OpenSearch/pull/7853))
+- Add safeguard limits for file cache during node level allocation ([#8208](https://github.com/opensearch-project/OpenSearch/pull/8208))
+- Move span actions to Scope ([#8411](https://github.com/opensearch-project/OpenSearch/pull/8411))
+- Add wrapper tracer implementation ([#8565](https://github.com/opensearch-project/OpenSearch/pull/8565))
+- Improved performance of parsing floating point numbers ([#7909](https://github.com/opensearch-project/OpenSearch/pull/7909))
+
+### Removed
+- Remove `COMPRESSOR` variable from `CompressorFactory` and use `DEFLATE_COMPRESSOR` instead ([7907](https://github.com/opensearch-project/OpenSearch/pull/7907))
+- Remove concurrency based minimum file cache size restriction ([#8294](https://github.com/opensearch-project/OpenSearch/pull/8294))
+
+### Fixed
+- Fixing error: adding a new/forgotten parameter to the configuration for checking the config on startup in plugins/repository-s3 #7924
+- Enforce 512 byte document ID limit in bulk updates ([#8039](https://github.com/opensearch-project/OpenSearch/pull/8039))
+- With only GlobalAggregation in request causes unnecessary wrapping with MultiCollector ([#8125](https://github.com/opensearch-project/OpenSearch/pull/8125))
+- Fix mapping char_filter when mapping a hashtag ([#7591](https://github.com/opensearch-project/OpenSearch/pull/7591))
+- Fix NPE in multiterms aggregations involving empty buckets ([#7318](https://github.com/opensearch-project/OpenSearch/pull/7318))
+- Precise system clock time in MasterService debug logs ([#7902](https://github.com/opensearch-project/OpenSearch/pull/7902))
+- Improve indexing performance for flat_object type ([#7855](https://github.com/opensearch-project/OpenSearch/pull/7855))
+- Adds log4j configuration for telemetry LogSpanExporter ([#8393](https://github.com/opensearch-project/OpenSearch/pull/8393))
+- Fix painless casting bug, which crashes the OpenSearch process ([#8315](https://github.com/opensearch-project/OpenSearch/pull/8315))
+- Add missing validation/parsing of SearchBackpressureMode of SearchBackpressureSettings ([#7541](https://github.com/opensearch-project/OpenSearch/pull/7541))