🚀 opensearch-project/OpenSearch - Release Notes

## 2025-03-17 Version 3.0.0-alpha1 Release Notes

## [3.0.0]
### Breaking Changes
- Upgrade to Lucene 10.1.0 - PR ([#16366](https://github.com/opensearch-project/OpenSearch/pull/16366))
- JDK21 as minimum supported Java runtime ([#10745](https://github.com/opensearch-project/OpenSearch/issues/10745))
- Remove deprecated terms from Java API ([#5214](https://github.com/opensearch-project/OpenSearch/issues/5214))
- JPMS Support (Eliminate top level split packages ) Phase-0 only ([#8110](https://github.com/opensearch-project/OpenSearch/issues/8110))
- Add ThreadContextPermission for stashAndMergeHeaders and stashWithOrigin ([#15039](https://github.com/opensearch-project/OpenSearch/pull/15039))
- Add ThreadContextPermission for markAsSystemContext and allow core to perform the method ([#15016](https://github.com/opensearch-project/OpenSearch/pull/15016))
- Migrate client transports to Apache HttpClient / Core 5.x ([#4459](https://github.com/opensearch-project/OpenSearch/pull/4459))
- Validation changes on the Bulk Index API like enforcing 512 byte _id size limit ([#6595](https://github.com/opensearch-project/OpenSearch/issues/6595))
- Ability to use the node as coordinating node by passing node.roles as empty array ([#3412](https://github.com/opensearch-project/OpenSearch/issues/3412))
- Treat Setting value with empty array string as empty array ([#10625](https://github.com/opensearch-project/OpenSearch/pull/10625))
- Ensure Jackson default maximums introduced in 2.16.0 do not conflict with OpenSearch settings ([#11811](https://github.com/opensearch-project/OpenSearch/pull/11811))
- Setting a maximum depth for nested queries ([#11670](https://github.com/opensearch-project/OpenSearch/pull/11670))
- Fix interchanged formats of total_indexing_buffer_in_bytes and total_indexing_buffer ([#17070](https://github.com/opensearch-project/OpenSearch/pull/17070))
- Cleanup deprecated thread pool settings ([#2595](https://github.com/opensearch-project/OpenSearch/issues/2595))
- Replace "blacklist/whitelist" terminology in Java APIs ([#1683](https://github.com/opensearch-project/OpenSearch/issues/1683))
- Remove deprecated methods from JodaCompatibleZonedDateTime which are called by scripts ([#3346](https://github.com/opensearch-project/OpenSearch/pull/3346))
- List of deprecated code removal in 3.0- partially done ([#2773](https://github.com/opensearch-project/OpenSearch/issues/2773))
- Remove mmap.extensions setting ([#9392](https://github.com/opensearch-project/OpenSearch/pull/9392))
- Remove COMPAT locale provider ([#13988](https://github.com/opensearch-project/OpenSearch/pull/13988))
- Remove transport-nio plugin ([#16887](https://github.com/opensearch-project/OpenSearch/issues/16887))
- Deprecate CamelCase PathHierarchy tokenizer name ([#10894](https://github.com/opensearch-project/OpenSearch/pull/10894))
- Rename Class ending with Plugin to Module under modules dir ([#4042](https://github.com/opensearch-project/OpenSearch/pull/4042))

### Added
- Support for HTTP/2 (server-side) ([#3847](https://github.com/opensearch-project/OpenSearch/pull/3847))
- Allow mmap to use new JDK-19 preview APIs in Apache Lucene 9.4+ ([#5151](https://github.com/opensearch-project/OpenSearch/pull/5151))
- Add events correlation engine plugin ([#6854](https://github.com/opensearch-project/OpenSearch/issues/6854))
- Implement on behalf of token passing for extensions ([#8679](https://github.com/opensearch-project/OpenSearch/pull/8679), [#10664](https://github.com/opensearch-project/OpenSearch/pull/10664))
- Provide service accounts tokens to extensions ([#9618](https://github.com/opensearch-project/OpenSearch/pull/9618))
- GHA to verify checklist items completion in PR descriptions ([#10800](https://github.com/opensearch-project/OpenSearch/pull/10800))
- [WLM] Add WLM support for search scroll API ([#16981](https://github.com/opensearch-project/OpenSearch/pull/16981))
- Views, simplify data access and manipulation by providing a virtual layer over one or more indices ([#11957](https://github.com/opensearch-project/OpenSearch/pull/11957))
- Add systemd configurations to strengthen OS core security ([#17107](https://github.com/opensearch-project/OpenSearch/pull/17107))
- Added pull-based Ingestion (APIs, for ingestion source, a Kafka plugin, and IngestionEngine that pulls data from the ingestion source) ([#16958](https://github.com/opensearch-project/OpenSearch/pull/16958))
- Added ConfigurationUtils to core for the ease of configuration parsing [#17223](https://github.com/opensearch-project/OpenSearch/pull/17223)
- Add cluster and index level settings to limit the total primary shards per node and per index [#17295](https://github.com/opensearch-project/OpenSearch/pull/17295)
- Add execution_hint to cardinality aggregator request ([#17312](https://github.com/opensearch-project/OpenSearch/pull/17312))
- Arrow Flight RPC plugin with Flight server bootstrap logic and client for internode communication ([#16962](https://github.com/opensearch-project/OpenSearch/pull/16962))
- Added offset management for the pull-based Ingestion ([#17354](https://github.com/opensearch-project/OpenSearch/pull/17354))
- Added integ tests for systemd configs ([#17410](https://github.com/opensearch-project/OpenSearch/pull/17410))
- Add filter function for AbstractQueryBuilder, BoolQueryBuilder, ConstantScoreQueryBuilder([#17409](https://github.com/opensearch-project/OpenSearch/pull/17409))
- [Star Tree] [Search] Resolving keyword & numeric bucket aggregation with metric aggregation using star-tree ([#17165](https://github.com/opensearch-project/OpenSearch/pull/17165))
- Added error handling support for the pull-based ingestion ([#17427](https://github.com/opensearch-project/OpenSearch/pull/17427))
- Added Warm index setting and Updated nomenclature to differentiate between hot and warm tiering implementation ([#17490](https://github.com/opensearch-project/OpenSearch/pull/17490))
- Latency and Memory allocation improvements to Multi Term Aggregation queries ([#14993](https://github.com/opensearch-project/OpenSearch/pull/14993))
- Add logic in master service to optimize performance and retain detailed logging for critical cluster operations. ([#14795](https://github.com/opensearch-project/OpenSearch/pull/14795))
- Add Setting to adjust the primary constraint weights ([#16471](https://github.com/opensearch-project/OpenSearch/pull/16471))
- Introduce a setting to disable download of full cluster state from remote on term mismatch([#16798](https://github.com/opensearch-project/OpenSearch/pull/16798/))
- Added ability to retrieve value from DocValues in a flat_object filed([#16802](https://github.com/opensearch-project/OpenSearch/pull/16802))
- Improve performace of NumericTermAggregation by avoiding unnecessary sorting([#17252](https://github.com/opensearch-project/OpenSearch/pull/17252))
- Fix Bug - Handle unsigned long in sorting order assertion of LongHashSet ([#17207](https://github.com/opensearch-project/OpenSearch/pull/17207))
- Implemented computation of segment replication stats at shard level ([#17055](https://github.com/opensearch-project/OpenSearch/pull/17055))
- [Rule Based Auto-tagging] Add in-memory attribute value store ([#17342](https://github.com/opensearch-project/OpenSearch/pull/17342))


### Dependencies
- Bump Apache HttpCore5/HttpClient5 dependencies from 5.2.5/5.3.1 to 5.3.1/5.4.1 to support ExtendedSocketOption in HttpAsyncClient ([#16757](https://github.com/opensearch-project/OpenSearch/pull/16757))
- Bumps `jetty` version from 9.4.55.v20240627 to 9.4.57.v20241219 ([#17395](https://github.com/opensearch-project/OpenSearch/pull/17395))
- Switch main/3.x to use JDK21 LTS version ([#17515](https://github.com/opensearch-project/OpenSearch/pull/17515))
- Bump `org.awaitility:awaitility` from 4.2.0 to 4.3.0 ([#17230](https://github.com/opensearch-project/OpenSearch/pull/17230), [#17439](https://github.com/opensearch-project/OpenSearch/pull/17439))
- Bump `dnsjava:dnsjava` from 3.6.2 to 3.6.3 ([#17231](https://github.com/opensearch-project/OpenSearch/pull/17231))
- Bump `com.google.code.gson:gson` from 2.11.0 to 2.12.1 ([#17229](https://github.com/opensearch-project/OpenSearch/pull/17229))
- Bump `org.jruby.joni:joni` from 2.2.1 to 2.2.3 ([#17136](https://github.com/opensearch-project/OpenSearch/pull/17136))
- Bump `org.apache.ant:ant` from 1.10.14 to 1.10.15 ([#17288](https://github.com/opensearch-project/OpenSearch/pull/17288))
- Bump `reactor_netty` from 1.1.26 to 1.1.27 ([#17322](https://github.com/opensearch-project/OpenSearch/pull/17322))
- Bump `me.champeau.gradle.japicmp` from 0.4.5 to 0.4.6 ([#17375](https://github.com/opensearch-project/OpenSearch/pull/17375))
- Bump `com.google.api.grpc:proto-google-common-protos` from 2.37.1 to 2.52.0 ([#17379](https://github.com/opensearch-project/OpenSearch/pull/17379))
- Bump `net.minidev:json-smart` from 2.5.1 to 2.5.2 ([#17378](https://github.com/opensearch-project/OpenSearch/pull/17378))
- Bump `com.netflix.nebula.ospackage-base` from 11.10.1 to 11.11.1 ([#17374](https://github.com/opensearch-project/OpenSearch/pull/17374))
- Bump `ch.qos.logback:logback-classic` from 1.5.16 to 1.5.17 ([#17497](https://github.com/opensearch-project/OpenSearch/pull/17497))
- Bump `software.amazon.awssdk` from 2.20.86 to 2.30.31 ([#17396](https://github.com/opensearch-project/OpenSearch/pull/17396))
- Bump `org.jruby.jcodings:jcodings` from 1.0.61 to 1.0.63 ([#17560](https://github.com/opensearch-project/OpenSearch/pull/17560))
- Bump `com.azure:azure-storage-blob` from 12.28.1 to 12.29.1 ([#17562](https://github.com/opensearch-project/OpenSearch/pull/17562))

### Changed
- Changed locale provider from COMPAT to CLDR  ([#14345](https://github.com/opensearch-project/OpenSearch/pull/14345))
- Change http code on create index API with bad input raising NotXContentException from 500 to 400 ([#4773](https://github.com/opensearch-project/OpenSearch/pull/4773))
- Improve summary error message for invalid setting updates ([#4792](https://github.com/opensearch-project/OpenSearch/pull/4792))
- Return 409 Conflict HTTP status instead of 503 on failure to concurrently execute snapshots ([#8986](https://github.com/opensearch-project/OpenSearch/pull/5855))
- Add task completion count in search backpressure stats API ([#10028](https://github.com/opensearch-project/OpenSearch/pull/10028/))
- Breaking change: Do not request "search_pipelines" metrics by default in NodesInfoRequest ([#12497](https://github.com/opensearch-project/OpenSearch/pull/12497))
- Use simpler matching logic for source fields when explicit field names (no wildcards or dot-paths) are specified ([#17160](https://github.com/opensearch-project/OpenSearch/pull/17160))
- Refactor `:libs` module `bootstrap` package to eliminate top level split packages for JPMS support ([#17117](https://github.com/opensearch-project/OpenSearch/pull/17117))
- Refactor the codebase to eliminate top level split packages for JPMS support ([#17153](https://github.com/opensearch-project/OpenSearch/pull/17153)
- Refactor `:server` module `org.apacge.lucene` package to eliminate top level split packages for JPMS support ([#17241](https://github.com/opensearch-project/OpenSearch/pull/17241))
- Stop minimizing automata used for case-insensitive matches ([#17268](https://github.com/opensearch-project/OpenSearch/pull/17268))
- Refactor the `:server` module `org.opensearch.client` to `org.opensearch.transport.client` to eliminate top level split packages for JPMS support ([#17272](https://github.com/opensearch-project/OpenSearch/pull/17272))
- Use Lucene `BM25Similarity` as default since the `LegacyBM25Similarity` is marked as deprecated ([#17306](https://github.com/opensearch-project/OpenSearch/pull/17306))
- Wildcard field index only 3gram of the input data [#17349](https://github.com/opensearch-project/OpenSearch/pull/17349)
- Use BC libraries to parse PEM files, increase key length, allow general use of known cryptographic binary extensions, remove unused BC dependencies ([#3420](https://github.com/opensearch-project/OpenSearch/pull/14912))
- Add optional enum set read / write functionality to stream input / output ([#17556](https://github.com/opensearch-project/OpenSearch/pull/17556))
- Convert transport-reactor-netty4 to use gradle version catalog [#17233](https://github.com/opensearch-project/OpenSearch/pull/17233)
- Increase force merge threads to 1/8th of cores [#17255](https://github.com/opensearch-project/OpenSearch/pull/17255)
- TieredSpilloverCache took-time threshold now guards heap tier as well as disk tier [#17190](https://github.com/opensearch-project/OpenSearch/pull/17190)

### Deprecated

### Removed
- Remove deprecated code to add node name into log pattern of log4j property file ([#4568](https://github.com/opensearch-project/OpenSearch/pull/4568))
- Unused object and import within TransportClusterAllocationExplainAction ([#4639](https://github.com/opensearch-project/OpenSearch/pull/4639))
- Remove LegacyESVersion.V_7_0_* and V_7_1_* Constants ([#2768](https://https://github.com/opensearch-project/OpenSearch/pull/2768))
- Remove LegacyESVersion.V_7_2_ and V_7_3_ Constants ([#4702](https://github.com/opensearch-project/OpenSearch/pull/4702))
- Always auto release the flood stage block ([#4703](https://github.com/opensearch-project/OpenSearch/pull/4703))
- Remove LegacyESVersion.V_7_4_ and V_7_5_ Constants ([#4704](https://github.com/opensearch-project/OpenSearch/pull/4704))
- Remove Legacy Version support from Snapshot/Restore Service ([#4728](https://github.com/opensearch-project/OpenSearch/pull/4728))
- Remove deprecated serialization logic from pipeline aggs ([#4847](https://github.com/opensearch-project/OpenSearch/pull/4847))
- Remove unused private methods ([#4926](https://github.com/opensearch-project/OpenSearch/pull/4926))
- Remove LegacyESVersion.V_7_8_ and V_7_9_ Constants ([#4855](https://github.com/opensearch-project/OpenSearch/pull/4855))
- Remove LegacyESVersion.V_7_6_ and V_7_7_ Constants ([#4837](https://github.com/opensearch-project/OpenSearch/pull/4837))
- Remove LegacyESVersion.V_7_10_ Constants ([#5018](https://github.com/opensearch-project/OpenSearch/pull/5018))
- Remove Version.V_1_ Constants ([#5021](https://github.com/opensearch-project/OpenSearch/pull/5021))
- Remove custom Map, List and Set collection classes ([#6871](https://github.com/opensearch-project/OpenSearch/pull/6871))
- Remove package org.opensearch.action.support.master ([#4856](https://github.com/opensearch-project/OpenSearch/issues/4856))
- Remove deprecated 'gateway' settings used to defer cluster recovery ([#3117](https://github.com/opensearch-project/OpenSearch/issues/3117))
- Remove FeatureFlags.PLUGGABLE_CACHE as the feature is no longer experimental ([#17344](https://github.com/opensearch-project/OpenSearch/pull/17344))

### Fixed
- Fix 'org.apache.hc.core5.http.ParseException: Invalid protocol version' under JDK 16+ ([#4827](https://github.com/opensearch-project/OpenSearch/pull/4827))
- Fix compression support for h2c protocol ([#4944](https://github.com/opensearch-project/OpenSearch/pull/4944))
- Don't over-allocate in HeapBufferedAsyncEntityConsumer in order to consume the response ([#9993](https://github.com/opensearch-project/OpenSearch/pull/9993))
- Add HTTP/2 protocol support to HttpRequest.HttpVersion ([#17248](https://github.com/opensearch-project/OpenSearch/pull/17248))
- Fix missing bucket in terms aggregation with missing value ([#17418](https://github.com/opensearch-project/OpenSearch/pull/17418))
- Fix explain action on query rewrite ([#17286](https://github.com/opensearch-project/OpenSearch/pull/17286))
- Fix visit of inner query for FunctionScoreQueryBuilder ([#16776](https://github.com/opensearch-project/OpenSearch/pull/16776))
- Fix case insensitive and escaped query on wildcard ([#16827](https://github.com/opensearch-project/OpenSearch/pull/16827))
- Fix exists queries on nested flat_object fields throws exception ([#16803](https://github.com/opensearch-project/OpenSearch/pull/16803))
- Add highlighting for wildcard search on `match_only_text` field ([#17101](https://github.com/opensearch-project/OpenSearch/pull/17101))
- Fix illegal argument exception when creating a PIT ([#16781](https://github.com/opensearch-project/OpenSearch/pull/16781))
- Fix NPE in node stats due to QueryGroupTasks ([#17576](https://github.com/opensearch-project/OpenSearch/pull/17576))

## 2025-02-27 Version 2.19.1 Release Notes

## [2.19.1]
### Added
- Add execution_hint to cardinality aggregator request (#[17420](https://github.com/opensearch-project/OpenSearch/pull/17420))

### Dependencies
- Bump netty from 4.1.117.Final to 4.1.118.Final ([#17320](https://github.com/opensearch-project/OpenSearch/pull/17320))
- Bump `jetty` version from 9.4.55.v20240627 to 9.4.57.v20241219

### Changed

### Deprecated

### Fixed
- Fix HTTP API calls that hang with 'Accept-Encoding: zstd' ([#17408](https://github.com/opensearch-project/OpenSearch/pull/17408))

## 2024-12-09 Version 1.3.20 Release Notes

### Dependencies
- Bump `icu4j` from 62.1 to 62.2 ([#15469](https://github.com/opensearch-project/OpenSearch/pull/15469))
- Bump `org.bouncycastle:bc-fips` from 1.0.2.4 to 1.0.2.5 ([#13446](https://github.com/opensearch-project/OpenSearch/pull/13446))
- Bump `Netty` from 4.1.112.Final to 4.1.115.Final ([#16661](https://github.com/opensearch-project/OpenSearch/pull/16661))
- Bump `avro` from 1.11.3 to 1.11.4 ([#16773](https://github.com/opensearch-project/OpenSearch/pull/16773))
- Bump `commonsio` to 2.16.0 ([#16780](https://github.com/opensearch-project/OpenSearch/pull/16780))
- Bump `protobuf-java` to 3.25.5 ([#16792](https://github.com/opensearch-project/OpenSearch/pull/16792))
- Bump `snappy-java` to 1.1.10.7 ([#16792](https://github.com/opensearch-project/OpenSearch/pull/16792))
- Bump `mime4j-core` to 0.8.11 ([#16810](https://github.com/opensearch-project/OpenSearch/pull/16810))

### Fixed
- Update help output for _cat ([#14722](https://github.com/opensearch-project/OpenSearch/pull/14722))
- Bugfix to guard against stack overflow errors caused by very large reg-ex input ([#16101](https://github.com/opensearch-project/OpenSearch/pull/16101))

## 2024-10-28 Version 2.18.0 Release Notes

## [2.18.0]
### Added
- [Workload Management] Add orchestrator for wlm resiliency (QueryGroupService) ([#15925](https://github.com/opensearch-project/OpenSearch/pull/15925))
- [Offline Nodes] Adds offline-tasks library containing various interfaces to be used for Offline Background Tasks. ([#13574](https://github.com/opensearch-project/OpenSearch/pull/13574))
- Add support for async deletion in S3BlobContainer ([#15621](https://github.com/opensearch-project/OpenSearch/pull/15621))
- [Workload Management] QueryGroup resource cancellation framework changes ([#15651](https://github.com/opensearch-project/OpenSearch/pull/15651))
- [Workload Management] Add QueryGroup Stats API Logic ([15777](https://github.com/opensearch-project/OpenSearch/pull/15777))
- Implement WithFieldName interface in ValuesSourceAggregationBuilder & FieldSortBuilder ([#15916](https://github.com/opensearch-project/OpenSearch/pull/15916))
- Add successfulSearchShardIndices in searchRequestContext ([#15967](https://github.com/opensearch-project/OpenSearch/pull/15967), [#16110](https://github.com/opensearch-project/OpenSearch/pull/16110))
- Fallback to Remote cluster-state on Term-Version check mismatch - ([#15424](https://github.com/opensearch-project/OpenSearch/pull/15424))
- [Tiered Caching] Segmented cache changes ([#16047](https://github.com/opensearch-project/OpenSearch/pull/16047))
- Add support for msearch API to pass search pipeline name - ([#15923](https://github.com/opensearch-project/OpenSearch/pull/15923))
- Add success and failure metrics for async shard fetch ([#15976](https://github.com/opensearch-project/OpenSearch/pull/15976))
- Add support to dynamically resize threadpools size. ([#16236](https://github.com/opensearch-project/OpenSearch/pull/16236))
- [S3 Repository] Change default retry mechanism of s3 clients to Standard Mode ([#15978](https://github.com/opensearch-project/OpenSearch/pull/15978))
- [Workload Management] Add Integration Tests for Workload Management CRUD APIs ([#15955](https://github.com/opensearch-project/OpenSearch/pull/15955))
- Add new metric REMOTE_STORE to NodeStats API response ([#15611](https://github.com/opensearch-project/OpenSearch/pull/15611))
- New `phone` & `phone-search` analyzer + tokenizer ([#15915](https://github.com/opensearch-project/OpenSearch/pull/15915))
- Add _list/indices API as paginated alternate to _cat/indices ([#14718](https://github.com/opensearch-project/OpenSearch/pull/14718))
- Add changes to block calls in cat shards, indices and segments based on dynamic limit settings ([#15986](https://github.com/opensearch-project/OpenSearch/pull/15986))
- Flat object field use IndexOrDocValuesQuery to optimize query ([#14383](https://github.com/opensearch-project/OpenSearch/issues/14383))
- Add method to return dynamic SecureTransportParameters from SecureTransportSettingsProvider interface ([#16387](https://github.com/opensearch-project/OpenSearch/pull/16387)
- Add _list/shards API as paginated alternate to _cat/shards ([#14641](https://github.com/opensearch-project/OpenSearch/pull/14641))
- [Star Tree - Search] Add support for metric aggregations with/without term query ([15289](https://github.com/opensearch-project/OpenSearch/pull/15289))
- URI path filtering support in cluster stats API ([#15938](https://github.com/opensearch-project/OpenSearch/pull/15938))
- Add support for renaming aliases during snapshot restore ([#16292](https://github.com/opensearch-project/OpenSearch/pull/16292))

### Dependencies
- Bump `org.apache.logging.log4j:log4j-core` from 2.23.1 to 2.24.0 ([#15858](https://github.com/opensearch-project/OpenSearch/pull/15858))
- Bump `com.azure:azure-identity` from 1.13.0 to 1.13.2 ([#15578](https://github.com/opensearch-project/OpenSearch/pull/15578))
- Bump `protobuf` from 3.22.3 to 3.25.4 ([#15684](https://github.com/opensearch-project/OpenSearch/pull/15684))
- Bump `peter-evans/create-pull-request` from 6 to 7 ([#15863](https://github.com/opensearch-project/OpenSearch/pull/15863))
- Bump `com.nimbusds:oauth2-oidc-sdk` from 11.9.1 to 11.19.1 ([#15862](https://github.com/opensearch-project/OpenSearch/pull/15862))
- Bump `com.microsoft.azure:msal4j` from 1.17.0 to 1.17.2 ([#15945](https://github.com/opensearch-project/OpenSearch/pull/15945), [#16406](https://github.com/opensearch-project/OpenSearch/pull/16406))
- Bump `ch.qos.logback:logback-core` from 1.5.6 to 1.5.10 ([#15946](https://github.com/opensearch-project/OpenSearch/pull/15946), [#16307](https://github.com/opensearch-project/OpenSearch/pull/16307))
- Update protobuf from 3.25.4 to 3.25.5 ([#16011](https://github.com/opensearch-project/OpenSearch/pull/16011))
- Bump `org.roaringbitmap:RoaringBitmap` from 1.2.1 to 1.3.0 ([#16040](https://github.com/opensearch-project/OpenSearch/pull/16040))
- Bump `com.nimbusds:nimbus-jose-jwt` from 9.40 to 9.41.1 ([#16038](https://github.com/opensearch-project/OpenSearch/pull/16038))
- Bump `actions/github-script` from 5 to 7 ([#16039](https://github.com/opensearch-project/OpenSearch/pull/16039))
- Bump `dnsjava:dnsjava` from 3.6.1 to 3.6.2 ([#16041](https://github.com/opensearch-project/OpenSearch/pull/16041))
- Bump `com.maxmind.geoip2:geoip2` from 4.2.0 to 4.2.1 ([#16042](https://github.com/opensearch-project/OpenSearch/pull/16042))
- Bump `com.maxmind.db:maxmind-db` from 3.1.0 to 3.1.1 ([#16137](https://github.com/opensearch-project/OpenSearch/pull/16137))
- Bump Apache lucene from 9.11.1 to 9.12.0 ([#15333](https://github.com/opensearch-project/OpenSearch/pull/15333))
- Bump `com.azure:azure-core-http-netty` from 1.15.3 to 1.15.5 ([#16133](https://github.com/opensearch-project/OpenSearch/pull/16133), [#16311](https://github.com/opensearch-project/OpenSearch/pull/16311))
- Bump `netty` from 4.1.112.Final to 4.1.114.Final ([#16182](https://github.com/opensearch-project/OpenSearch/pull/16182))
- Bump `com.google.api-client:google-api-client` from 2.2.0 to 2.7.0 ([#16216](https://github.com/opensearch-project/OpenSearch/pull/16216))
- Bump `com.azure:azure-json` from 1.1.0 to 1.3.0 ([#16217](https://github.com/opensearch-project/OpenSearch/pull/16217))
- Bump `io.grpc:grpc-api` from 1.57.2 to 1.68.0 ([#16213](https://github.com/opensearch-project/OpenSearch/pull/16213))
- Bump `org.jline:jline` from 3.26.3 to 3.27.0 ([#16135](https://github.com/opensearch-project/OpenSearch/pull/16135))
- Bump `com.squareup.okio:okio` from 3.9.0 to 3.9.1 ([#16212](https://github.com/opensearch-project/OpenSearch/pull/16212))
- Bump `lycheeverse/lychee-action` from 1.10.0 to 2.0.2 ([#16310](https://github.com/opensearch-project/OpenSearch/pull/16310))
- Bump `com.google.code.gson:gson` from 2.10.1 to 2.11.0 ([#16308](https://github.com/opensearch-project/OpenSearch/pull/16308))
- Bump `io.grpc:grpc-api` from 1.57.2 to 1.68.0 ([#16213](https://github.com/opensearch-project/OpenSearch/pull/16213))
- Bump `me.champeau.gradle.japicmp` from 0.4.3 to 0.4.4 ([#16309](https://github.com/opensearch-project/OpenSearch/pull/16309))
- Bump `com.google.oauth-client:google-oauth-client` from 1.35.0 to 1.36.0 ([#16306](https://github.com/opensearch-project/OpenSearch/pull/16306))

### Changed
- Add support for docker compose v2 in TestFixturesPlugin ([#16049](https://github.com/opensearch-project/OpenSearch/pull/16049))
- Remove identity-related feature flagged code from the RestController ([#15430](https://github.com/opensearch-project/OpenSearch/pull/15430))
- Remove Identity FeatureFlag ([#16024](https://github.com/opensearch-project/OpenSearch/pull/16024))
- Ensure RestHandler.Wrapper delegates all implementations to the wrapped handler ([#16154](https://github.com/opensearch-project/OpenSearch/pull/16154))
- Enable coordinator search.request_stats_enabled by default ([#16290](https://github.com/opensearch-project/OpenSearch/pull/16290))
- Optimise clone operation for incremental full cluster snapshots ([#16296](https://github.com/opensearch-project/OpenSearch/pull/16296))
- Code cleanup: Remove ApproximateIndexOrDocValuesQuery ([#16273](https://github.com/opensearch-project/OpenSearch/pull/16273))
- Update last seen cluster state in the commit phase ([#16215](https://github.com/opensearch-project/OpenSearch/pull/16215))
- Make multiple settings dynamic for tuning on larger clusters([#16347](https://github.com/opensearch-project/OpenSearch/pull/16347))

### Fixed
- Fix wildcard query containing escaped character ([#15737](https://github.com/opensearch-project/OpenSearch/pull/15737))
- Fix case-insensitive query on wildcard field ([#15882](https://github.com/opensearch-project/OpenSearch/pull/15882))
- Add validation for the search backpressure cancellation settings ([#15501](https://github.com/opensearch-project/OpenSearch/pull/15501))
- Fix search_as_you_type not supporting multi-fields ([#15988](https://github.com/opensearch-project/OpenSearch/pull/15988))
- Avoid infinite loop when `flat_object` field contains invalid token ([#15985](https://github.com/opensearch-project/OpenSearch/pull/15985))
- Fix infinite loop in nested agg ([#15931](https://github.com/opensearch-project/OpenSearch/pull/15931))
- Fix update settings with null replica not honoring cluster setting bug ([#14948](https://github.com/opensearch-project/OpenSearch/pull/14948))
- Fix race condition in node-join and node-left ([#15521](https://github.com/opensearch-project/OpenSearch/pull/15521))
- Streaming bulk request hangs ([#16158](https://github.com/opensearch-project/OpenSearch/pull/16158))
- Fix warnings from SLF4J on startup when repository-s3 is installed ([#16194](https://github.com/opensearch-project/OpenSearch/pull/16194))
- Fix protobuf-java leak through client library dependencies ([#16254](https://github.com/opensearch-project/OpenSearch/pull/16254))
- Fix multi-search with template doesn't return status code ([#16265](https://github.com/opensearch-project/OpenSearch/pull/16265))
- [Streaming Indexing] Fix intermittent 'The bulk request must be terminated by a newline [\n]' failures [#16337](https://github.com/opensearch-project/OpenSearch/pull/16337))
- Fix wrong default value when setting `index.number_of_routing_shards` to null on index creation ([#16331](https://github.com/opensearch-project/OpenSearch/pull/16331))
- Fix inefficient Stream API call chains ending with count() ([#15386](https://github.com/opensearch-project/OpenSearch/pull/15386))
- [Workload Management] Make query groups persistent across process restarts [#16370](https://github.com/opensearch-project/OpenSearch/pull/16370)
- Fix missing fields in task index mapping to ensure proper task result storage ([#16201](https://github.com/opensearch-project/OpenSearch/pull/16201))
- Fix typo super->sb in method toString() of RemoteStoreNodeAttribute ([#15362](https://github.com/opensearch-project/OpenSearch/pull/15362))
- Fix array hashCode calculation in ResyncReplicationRequest ([#16378](https://github.com/opensearch-project/OpenSearch/pull/16378))
- [Workload Management] Enhance rejection mechanism in workload management ([#16417](https://github.com/opensearch-project/OpenSearch/pull/16417))
- [Workload Management] Fixing Create/Update QueryGroup TransportActions to execute from non-cluster manager nodes ([16422](https://github.com/opensearch-project/OpenSearch/pull/16422))
- Fix flaky test in `testApproximateRangeWithSizeOverDefault` by adjusting totalHits assertion logic ([#16434](https://github.com/opensearch-project/OpenSearch/pull/16434#pullrequestreview-2386999409))

## 2024-10-01 Version 2.17.1 Release Notes

## [2.17.1]
### Added
- Add path prefix support to hashed prefix snapshots ([#15664](https://github.com/opensearch-project/OpenSearch/pull/15664))
- Memory optimisations in _cluster/health API ([#15492](https://github.com/opensearch-project/OpenSearch/pull/15492))

### Dependencies

### Changed

### Deprecated

### Removed

### Fixed

## 2024-09-17 Version 2.17.0 Release Notes

## [2.17.0]
### Added
- [Workload Management] Add Settings for Workload Management feature ([#15028](https://github.com/opensearch-project/OpenSearch/pull/15028))
- Fix for hasInitiatedFetching to fix allocation explain and manual reroute APIs (([#14972](https://github.com/opensearch-project/OpenSearch/pull/14972))
- [Workload Management] Add queryGroupId to Task ([14708](https://github.com/opensearch-project/OpenSearch/pull/14708))
- Add setting to ignore throttling nodes for allocation of unassigned primaries in remote restore ([#14991](https://github.com/opensearch-project/OpenSearch/pull/14991))
- [Workload Management] Add Delete QueryGroup API Logic ([#14735](https://github.com/opensearch-project/OpenSearch/pull/14735))
- [Streaming Indexing] Enhance RestClient with a new streaming API support ([#14437](https://github.com/opensearch-project/OpenSearch/pull/14437))
- Add basic aggregation support for derived fields ([#14618](https://github.com/opensearch-project/OpenSearch/pull/14618))
- [Workload Management] Add Create QueryGroup API Logic ([#14680](https://github.com/opensearch-project/OpenSearch/pull/14680))- [Workload Management] Add Create QueryGroup API Logic ([#14680](https://github.com/opensearch-project/OpenSearch/pull/14680))
- Add ThreadContextPermission for markAsSystemContext and allow core to perform the method ([#15016](https://github.com/opensearch-project/OpenSearch/pull/15016))
- Add ThreadContextPermission for stashAndMergeHeaders and stashWithOrigin ([#15039](https://github.com/opensearch-project/OpenSearch/pull/15039))
- [Concurrent Segment Search] Support composite aggregations with scripting ([#15072](https://github.com/opensearch-project/OpenSearch/pull/15072))
- Add `rangeQuery` and `regexpQuery` for `constant_keyword` field type ([#14711](https://github.com/opensearch-project/OpenSearch/pull/14711))
- Add took time to request nodes stats ([#15054](https://github.com/opensearch-project/OpenSearch/pull/15054))
- [Workload Management] Add Get QueryGroup API Logic ([14709](https://github.com/opensearch-project/OpenSearch/pull/14709))
- [Workload Management] Add Update QueryGroup API Logic ([#14775](https://github.com/opensearch-project/OpenSearch/pull/14775))
- [Workload Management] QueryGroup resource tracking framework changes ([#13897](https://github.com/opensearch-project/OpenSearch/pull/13897))
- Support filtering on a large list encoded by bitmap ([#14774](https://github.com/opensearch-project/OpenSearch/pull/14774))
- Add slice execution listeners to SearchOperationListener interface ([#15153](https://github.com/opensearch-project/OpenSearch/pull/15153))
- Make balanced shards allocator timebound ([#15239](https://github.com/opensearch-project/OpenSearch/pull/15239))
- Add allowlist setting for ingest-geoip and ingest-useragent ([#15325](https://github.com/opensearch-project/OpenSearch/pull/15325))
- Adding access to noSubMatches and noOverlappingMatches in Hyphenation ([#13895](https://github.com/opensearch-project/OpenSearch/pull/13895))
- Star tree mapping changes ([#14605](https://github.com/opensearch-project/OpenSearch/pull/14605))
- Add support for index level max slice count setting for concurrent segment search ([#15336](https://github.com/opensearch-project/OpenSearch/pull/15336))
- Support cancellation for cat shards and node stats API.([#13966](https://github.com/opensearch-project/OpenSearch/pull/13966))
- [Streaming Indexing] Introduce bulk HTTP API streaming flavor ([#15381](https://github.com/opensearch-project/OpenSearch/pull/15381))
- Add support for centralize snapshot creation with pinned timestamp ([#15124](https://github.com/opensearch-project/OpenSearch/pull/15124))
- Add concurrent search support for Derived Fields ([#15326](https://github.com/opensearch-project/OpenSearch/pull/15326))
- [Workload Management] Add query group stats constructs ([#15343](https://github.com/opensearch-project/OpenSearch/pull/15343)))
- Add limit on number of processors for Ingest pipeline([#15460](https://github.com/opensearch-project/OpenSearch/pull/15465)).
- Add runAs to Subject interface and introduce IdentityAwarePlugin extension point ([#14630](https://github.com/opensearch-project/OpenSearch/pull/14630))
- [Workload Management] Add rejection logic for co-ordinator and shard level requests ([#15428](https://github.com/opensearch-project/OpenSearch/pull/15428)))
- Adding translog durability validation in index templates ([#15494](https://github.com/opensearch-project/OpenSearch/pull/15494))
- [Range Queries] Add new approximateable query framework to short-circuit range queries ([#13788](https://github.com/opensearch-project/OpenSearch/pull/13788))
- [Workload Management] Add query group level failure tracking ([#15227](https://github.com/opensearch-project/OpenSearch/pull/15527))
- [Reader Writer Separation] Add experimental search replica shard type to achieve reader writer separation ([#15237](https://github.com/opensearch-project/OpenSearch/pull/15237))
- Add index creation using the context field ([#15290](https://github.com/opensearch-project/OpenSearch/pull/15290))
- [Remote Publication] Add remote download stats ([#15291](https://github.com/opensearch-project/OpenSearch/pull/15291))
- Add support to upload snapshot shard blobs with hashed prefix ([#15426](https://github.com/opensearch-project/OpenSearch/pull/15426))
- Add prefix support to hashed prefix & infix path types on remote store ([#15557](https://github.com/opensearch-project/OpenSearch/pull/15557))
- Add canRemain method to TargetPoolAllocationDecider to move shards from local to remote pool for hot to warm tiering ([#15010](https://github.com/opensearch-project/OpenSearch/pull/15010))
- Add support for pluggable deciders for concurrent search ([#15363](https://github.com/opensearch-project/OpenSearch/pull/15363))
- Optimise snapshot deletion to speed up snapshot deletion and creation ([#15568](https://github.com/opensearch-project/OpenSearch/pull/15568))
- [Remote Publication] Added checksum validation for cluster state behind a cluster setting ([#15218](https://github.com/opensearch-project/OpenSearch/pull/15218))
- Optimize NodeIndicesStats output behind flag ([#14454](https://github.com/opensearch-project/OpenSearch/pull/14454))
- Add support for comma-separated list of index names to be used with Snapshot Status API ([#15409](https://github.com/opensearch-project/OpenSearch/pull/15409))[SnapshotV2] Snapshot Status API changes (#15409))
- ClusterManagerTaskThrottler Improvements ([#15508](https://github.com/opensearch-project/OpenSearch/pull/15508))
- Relax the join validation for Remote State publication ([#15471](https://github.com/opensearch-project/OpenSearch/pull/15471))
- Reset DiscoveryNodes in all transport node actions request ([#15131](https://github.com/opensearch-project/OpenSearch/pull/15131))
- MultiTermQueries in keyword fields now default to `indexed` approach and gated behind cluster setting ([#15637](https://github.com/opensearch-project/OpenSearch/pull/15637))
- Adding WithFieldName interface for QueryBuilders with fieldName ([#15705](https://github.com/opensearch-project/OpenSearch/pull/15705))
- Making _cat/allocation API use indexLevelStats ([#15292](https://github.com/opensearch-project/OpenSearch/pull/15292))
- Static RemotePublication setting added, removed experimental feature flag ([#15478](https://github.com/opensearch-project/OpenSearch/pull/15478))
-  [Remote Publication] Upload incremental cluster state on master re-election ([#15145](https://github.com/opensearch-project/OpenSearch/pull/15145))

### Dependencies
- Bump `netty` from 4.1.111.Final to 4.1.112.Final ([#15081](https://github.com/opensearch-project/OpenSearch/pull/15081))
- Bump `org.apache.commons:commons-lang3` from 3.14.0 to 3.15.0 ([#14861](https://github.com/opensearch-project/OpenSearch/pull/14861))
- OpenJDK Update (July 2024 Patch releases) ([#14998](https://github.com/opensearch-project/OpenSearch/pull/14998))
- Bump `com.microsoft.azure:msal4j` from 1.16.1 to 1.17.0 ([#14995](https://github.com/opensearch-project/OpenSearch/pull/14995), [#15420](https://github.com/opensearch-project/OpenSearch/pull/15420))
- Bump `actions/github-script` from 6 to 7 ([#14997](https://github.com/opensearch-project/OpenSearch/pull/14997))
- Bump `org.tukaani:xz` from 1.9 to 1.10 ([#15110](https://github.com/opensearch-project/OpenSearch/pull/15110))
- Bump `org.apache.avro:avro` from 1.11.3 to 1.12.0 in /plugins/repository-hdfs ([#15119](https://github.com/opensearch-project/OpenSearch/pull/15119))
- Bump `org.bouncycastle:bcpg-fips` from 1.0.7.1 to 2.0.9 ([#15103](https://github.com/opensearch-project/OpenSearch/pull/15103), [#15299](https://github.com/opensearch-project/OpenSearch/pull/15299))
- Bump `com.azure:azure-core` from 1.49.1 to 1.51.0 ([#15111](https://github.com/opensearch-project/OpenSearch/pull/15111))
- Bump `org.xerial.snappy:snappy-java` from 1.1.10.5 to 1.1.10.6 ([#15207](https://github.com/opensearch-project/OpenSearch/pull/15207))
- Bump `com.azure:azure-xml` from 1.0.0 to 1.1.0 ([#15206](https://github.com/opensearch-project/OpenSearch/pull/15206))
- Bump `reactor` from 3.5.19 to 3.5.20 ([#15262](https://github.com/opensearch-project/OpenSearch/pull/15262))
- Bump `reactor-netty` from 1.1.21 to 1.1.22 ([#15262](https://github.com/opensearch-project/OpenSearch/pull/15262))
- Bump `org.apache.kerby:kerb-admin` from 2.0.3 to 2.1.0 ([#15301](https://github.com/opensearch-project/OpenSearch/pull/15301))
- Bump `com.azure:azure-core-http-netty` from 1.15.1 to 1.15.3 ([#15300](https://github.com/opensearch-project/OpenSearch/pull/15300))
- Bump `com.gradle.develocity` from 3.17.6 to 3.18 ([#15297](https://github.com/opensearch-project/OpenSearch/pull/15297))
- Bump `commons-cli:commons-cli` from 1.8.0 to 1.9.0 ([#15298](https://github.com/opensearch-project/OpenSearch/pull/15298))
- Bump `opentelemetry` from 1.40.0 to 1.41.0 ([#15361](https://github.com/opensearch-project/OpenSearch/pull/15361))
- Bump `opentelemetry-semconv` from 1.26.0-alpha to 1.27.0-alpha ([#15361](https://github.com/opensearch-project/OpenSearch/pull/15361))
- Bump `tj-actions/changed-files` from 44 to 45 ([#15422](https://github.com/opensearch-project/OpenSearch/pull/15422))
- Bump `dnsjava:dnsjava` from 3.6.0 to 3.6.1 ([#15418](https://github.com/opensearch-project/OpenSearch/pull/15418))
- Bump `com.netflix.nebula.ospackage-base` from 11.9.1 to 11.10.0 ([#15419](https://github.com/opensearch-project/OpenSearch/pull/15419))
- Bump `org.roaringbitmap:RoaringBitmap` from 1.1.0 to 1.2.1 ([#15423](https://github.com/opensearch-project/OpenSearch/pull/15423))
- Bump `icu4j` from 70.1 to 75.1 ([#15469](https://github.com/opensearch-project/OpenSearch/pull/15469))

### Changed
- Add lower limit for primary and replica batch allocators timeout ([#14979](https://github.com/opensearch-project/OpenSearch/pull/14979))
- Optimize regexp-based include/exclude on aggregations when pattern matches prefixes ([#14371](https://github.com/opensearch-project/OpenSearch/pull/14371))
- Replace and block usages of org.apache.logging.log4j.util.Strings ([#15238](https://github.com/opensearch-project/OpenSearch/pull/15238))
- Remote publication using minimum node version for backward compatibility ([#15216](https://github.com/opensearch-project/OpenSearch/pull/15216))

### Deprecated

### Removed
- Remove some unused code in the search backpressure package ([#15518](https://github.com/opensearch-project/OpenSearch/pull/15518))

### Fixed
- Fix constraint bug which allows more primary shards than average primary shards per index ([#14908](https://github.com/opensearch-project/OpenSearch/pull/14908))
- Fix NPE when bulk ingest with empty pipeline ([#15033](https://github.com/opensearch-project/OpenSearch/pull/15033))
- Fix missing value of FieldSort for unsigned_long ([#14963](https://github.com/opensearch-project/OpenSearch/pull/14963))
- Fix delete index template failed when the index template matches a data stream but is unused ([#15080](https://github.com/opensearch-project/OpenSearch/pull/15080))
- Fix array_index_out_of_bounds_exception when indexing documents with field name containing only dot ([#15126](https://github.com/opensearch-project/OpenSearch/pull/15126))
- Fixed array field name omission in flat_object function for nested JSON ([#13620](https://github.com/opensearch-project/OpenSearch/pull/13620))
- Fix incorrect parameter names in MinHash token filter configuration handling ([#15233](https://github.com/opensearch-project/OpenSearch/pull/15233))
- Fix range aggregation optimization ignoring top level queries ([#15287](https://github.com/opensearch-project/OpenSearch/pull/15287))
- Fix indexing error when flat_object field is explicitly null ([#15375](https://github.com/opensearch-project/OpenSearch/pull/15375))
- Fix split response processor not included in allowlist ([#15393](https://github.com/opensearch-project/OpenSearch/pull/15393))
- Fix unchecked cast in dynamic action map getter ([#15394](https://github.com/opensearch-project/OpenSearch/pull/15394))
- Fix null values indexed as "null" strings in flat_object field ([#14069](https://github.com/opensearch-project/OpenSearch/pull/14069))
- Fix terms query on wildcard field returns nothing ([#15607](https://github.com/opensearch-project/OpenSearch/pull/15607))
- Fix remote snapshot file_cache exceeding capacity ([#15077](https://github.com/opensearch-project/OpenSearch/pull/15077))

## 2024-07-24 Version 2.16.0 Release Notes

## [2.16.0]
### Added
- Add fingerprint ingest processor ([#13724](https://github.com/opensearch-project/OpenSearch/pull/13724))
- [Remote Store] Rate limiter for remote store low priority uploads ([#14374](https://github.com/opensearch-project/OpenSearch/pull/14374/))
- Apply the date histogram rewrite optimization to range aggregation ([#13865](https://github.com/opensearch-project/OpenSearch/pull/13865))
- [Writable Warm] Add composite directory implementation and integrate it with FileCache ([12782](https://github.com/opensearch-project/OpenSearch/pull/12782))
- [Workload Management] Add QueryGroup schema ([13669](https://github.com/opensearch-project/OpenSearch/pull/13669))
- Add batching supported processor base type AbstractBatchingProcessor ([#14554](https://github.com/opensearch-project/OpenSearch/pull/14554))
- Fix race condition while parsing derived fields from search definition ([14445](https://github.com/opensearch-project/OpenSearch/pull/14445))
- Add `strict_allow_templates` dynamic mapping option ([#14555](https://github.com/opensearch-project/OpenSearch/pull/14555))
- Add allowlist setting for ingest-common and search-pipeline-common processors ([#14439](https://github.com/opensearch-project/OpenSearch/issues/14439))
- [Workload Management] add queryGroupId header propagator across requests and nodes ([#14614](https://github.com/opensearch-project/OpenSearch/pull/14614))
- Create SystemIndexRegistry with helper method matchesSystemIndex ([#14415](https://github.com/opensearch-project/OpenSearch/pull/14415))
- Print reason why parent task was cancelled ([#14604](https://github.com/opensearch-project/OpenSearch/issues/14604))
- Add matchesPluginSystemIndexPattern to SystemIndexRegistry ([#14750](https://github.com/opensearch-project/OpenSearch/pull/14750))
- Add Plugin interface for loading application based configuration templates (([#14659](https://github.com/opensearch-project/OpenSearch/issues/14659)))
- Refactor remote-routing-table service inline with remote state interfaces([#14668](https://github.com/opensearch-project/OpenSearch/pull/14668))
- Add shard-diff path to diff manifest to reduce number of read calls remote store (([#14684](https://github.com/opensearch-project/OpenSearch/pull/14684)))
- Add SortResponseProcessor to Search Pipelines (([#14785](https://github.com/opensearch-project/OpenSearch/issues/14785)))
- Add prefix mode verification setting for repository verification (([#14790](https://github.com/opensearch-project/OpenSearch/pull/14790)))
- Add SplitResponseProcessor to Search Pipelines (([#14800](https://github.com/opensearch-project/OpenSearch/issues/14800)))
- Optimize TransportNodesAction to not send DiscoveryNodes for NodeStats, NodesInfo and ClusterStats call ([14749](https://github.com/opensearch-project/OpenSearch/pull/14749))
- Reduce logging in DEBUG for MasterService:run ([#14795](https://github.com/opensearch-project/OpenSearch/pull/14795))
- Refactor remote-routing-table service inline with remote state interfaces([#14668](https://github.com/opensearch-project/OpenSearch/pull/14668))
- Add rest, transport layer changes for hot to warm tiering - dedicated setup (([#13980](https://github.com/opensearch-project/OpenSearch/pull/13980))
- Enabling term version check on local state for all ClusterManager Read Transport Actions ([#14273](https://github.com/opensearch-project/OpenSearch/pull/14273))
- Optimize Cluster Stats Indices to precomute node level stats ([#14426](https://github.com/opensearch-project/OpenSearch/pull/14426))
- Create listener to refresh search thread resource usage ([#14832](https://github.com/opensearch-project/OpenSearch/pull/14832))
- Add logic to create index templates (v2) using context field ([#14811](https://github.com/opensearch-project/OpenSearch/pull/14811))

### Dependencies
- Update to Apache Lucene 9.11.1 ([#14042](https://github.com/opensearch-project/OpenSearch/pull/14042), [#14576](https://github.com/opensearch-project/OpenSearch/pull/14576))
- Bump `netty` from 4.1.110.Final to 4.1.111.Final ([#14356](https://github.com/opensearch-project/OpenSearch/pull/14356))
- Bump `org.wiremock:wiremock-standalone` from 3.3.1 to 3.6.0 ([#14361](https://github.com/opensearch-project/OpenSearch/pull/14361))
- Bump `reactor` from 3.5.17 to 3.5.19 ([#14395](https://github.com/opensearch-project/OpenSearch/pull/14395), [#14697](https://github.com/opensearch-project/OpenSearch/pull/14697))
- Bump `reactor-netty` from 1.1.19 to 1.1.21 ([#14395](https://github.com/opensearch-project/OpenSearch/pull/14395), [#14697](https://github.com/opensearch-project/OpenSearch/pull/14697))
- Bump `commons-net:commons-net` from 3.10.0 to 3.11.1 ([#14396](https://github.com/opensearch-project/OpenSearch/pull/14396))
- Bump `com.nimbusds:nimbus-jose-jwt` from 9.37.3 to 9.40 ([#14398](https://github.com/opensearch-project/OpenSearch/pull/14398))
- Bump `org.apache.commons:commons-configuration2` from 2.10.1 to 2.11.0 ([#14399](https://github.com/opensearch-project/OpenSearch/pull/14399))
- Bump `com.gradle.develocity` from 3.17.4 to 3.17.5 ([#14397](https://github.com/opensearch-project/OpenSearch/pull/14397))
- Bump `opentelemetry` from 1.36.0 to 1.40.0 ([#14457](https://github.com/opensearch-project/OpenSearch/pull/14457), [#14674](https://github.com/opensearch-project/OpenSearch/pull/14674))
- Bump `opentelemetry-semconv` from 1.25.0-alpha to 1.26.0-alpha ([#14674](https://github.com/opensearch-project/OpenSearch/pull/14674))
- Bump `azure-identity` from 1.11.4 to 1.13.0, Bump `msal4j` from 1.14.3 to 1.15.1, Bump `msal4j-persistence-extension` from 1.2.0 to 1.3.0 ([#14506](https://github.com/opensearch-project/OpenSearch/pull/14673))
- Bump `com.azure:azure-storage-common` from 12.21.2 to 12.25.1 ([#14517](https://github.com/opensearch-project/OpenSearch/pull/14517))
- Bump `com.microsoft.azure:msal4j` from 1.15.1 to 1.16.0 ([#14610](https://github.com/opensearch-project/OpenSearch/pull/14610))
- Bump `com.github.spullara.mustache.java:compiler` from 0.9.13 to 0.9.14 ([#14672](https://github.com/opensearch-project/OpenSearch/pull/14672))
- Bump `net.minidev:accessors-smart` from 2.5.0 to 2.5.1 ([#14673](https://github.com/opensearch-project/OpenSearch/pull/14673))
- Bump `jackson` from 2.17.1 to 2.17.2 ([#14687](https://github.com/opensearch-project/OpenSearch/pull/14687))
- Bump `net.minidev:json-smart` from 2.5.0 to 2.5.1 ([#14748](https://github.com/opensearch-project/OpenSearch/pull/14748))

### Changed
- [Tiered Caching] Move query recomputation logic outside write lock ([#14187](https://github.com/opensearch-project/OpenSearch/pull/14187))
- unsignedLongRangeQuery now returns MatchNoDocsQuery if the lower bounds are greater than the upper bounds ([#14416](https://github.com/opensearch-project/OpenSearch/pull/14416))
- Make the class CommunityIdProcessor final ([#14448](https://github.com/opensearch-project/OpenSearch/pull/14448))
- Updated the `indices.query.bool.max_clause_count` setting from being static to dynamically updateable ([#13568](https://github.com/opensearch-project/OpenSearch/pull/13568))
- Allow @InternalApi annotation on classes not meant to be constructed outside of the OpenSearch core ([#14575](https://github.com/opensearch-project/OpenSearch/pull/14575))
- Add @InternalApi annotation to japicmp exclusions ([#14597](https://github.com/opensearch-project/OpenSearch/pull/14597))
- Allow system index warning in OpenSearchRestTestCase.refreshAllIndices ([#14635](https://github.com/opensearch-project/OpenSearch/pull/14635))
- Make reroute iteration time-bound for large shard allocations ([#14848](https://github.com/opensearch-project/OpenSearch/pull/14848))

### Deprecated
- Deprecate batch_size parameter on bulk API ([#14725](https://github.com/opensearch-project/OpenSearch/pull/14725))

### Removed
- Remove query categorization changes ([#14759](https://github.com/opensearch-project/OpenSearch/pull/14759))

### Fixed
- Fix bug in SBP cancellation logic ([#13259](https://github.com/opensearch-project/OpenSearch/pull/13474))
- Fix handling of Short and Byte data types in ScriptProcessor ingest pipeline ([#14379](https://github.com/opensearch-project/OpenSearch/issues/14379))
- Switch to iterative version of WKT format parser ([#14086](https://github.com/opensearch-project/OpenSearch/pull/14086))
- Fix match_phrase_prefix_query not working on text field with multiple values and index_prefixes ([#10959](https://github.com/opensearch-project/OpenSearch/pull/10959))
- Fix the computed max shards of cluster to avoid int overflow ([#14155](https://github.com/opensearch-project/OpenSearch/pull/14155))
- Fixed rest-high-level client searchTemplate & mtermVectors endpoints to have a leading slash ([#14465](https://github.com/opensearch-project/OpenSearch/pull/14465))
- Write shard level metadata blob when snapshotting searchable snapshot indexes ([#13190](https://github.com/opensearch-project/OpenSearch/pull/13190))
- Fix aggs result of NestedAggregator with sub NestedAggregator ([#13324](https://github.com/opensearch-project/OpenSearch/pull/13324))
- Fix fs info reporting negative available size ([#11573](https://github.com/opensearch-project/OpenSearch/pull/11573))
- Add ListPitInfo::getKeepAlive() getter ([#14495](https://github.com/opensearch-project/OpenSearch/pull/14495))
- Fix FuzzyQuery in keyword field will use IndexOrDocValuesQuery when both of index and doc_value are true ([#14378](https://github.com/opensearch-project/OpenSearch/pull/14378))
- Fix file cache initialization ([#14004](https://github.com/opensearch-project/OpenSearch/pull/14004))
- Handle NPE in GetResult if "found" field is missing ([#14552](https://github.com/opensearch-project/OpenSearch/pull/14552))
- Fix create or update alias API doesn't throw exception for unsupported parameters ([#14719](https://github.com/opensearch-project/OpenSearch/pull/14719))
- Refactoring FilterPath.parse by using an iterative approach ([#14200](https://github.com/opensearch-project/OpenSearch/pull/14200))
- Refactoring Grok.validatePatternBank by using an iterative approach ([#14206](https://github.com/opensearch-project/OpenSearch/pull/14206))
- Fix NPE when creating index with index.number_of_replicas set to null ([#14812](https://github.com/opensearch-project/OpenSearch/pull/14812))
- Update help output for _cat ([#14722](https://github.com/opensearch-project/OpenSearch/pull/14722))
- Fix bulk upsert ignores the default_pipeline and final_pipeline when auto-created index matches the index template ([#12891](https://github.com/opensearch-project/OpenSearch/pull/12891))
- Fix NPE in ReplicaShardAllocator ([#14385](https://github.com/opensearch-project/OpenSearch/pull/14385))
- Use circuit breaker in InternalHistogram when adding empty buckets ([#14754](https://github.com/opensearch-project/OpenSearch/pull/14754))
- Create new IndexInput for multi part upload ([#14888](https://github.com/opensearch-project/OpenSearch/pull/14888))
- Fix searchable snapshot failure with scripted fields ([#14411](https://github.com/opensearch-project/OpenSearch/pull/14411))
- Fix the visit of inner query for NestedQueryBuilder ([#14739](https://github.com/opensearch-project/OpenSearch/pull/14739))
- Fix constant_keyword field type used when creating index ([#14807](https://github.com/opensearch-project/OpenSearch/pull/14807))

## 2024-07-09 Version 1.3.18 Release Notes

### Upgrades
- Bump `netty` from 4.1.110.Final to 4.1.111.Final ([#14356](https://github.com/opensearch-project/OpenSearch/pull/14356))

## 2024-06-12 Version 2.15.0 Release Notes

## [2.15.0]
### Added
- Add leader and follower check failure counter metrics ([#12439](https://github.com/opensearch-project/OpenSearch/pull/12439))
- Add latency metrics for instrumenting critical clusterManager code paths ([#12333](https://github.com/opensearch-project/OpenSearch/pull/12333))
- Add support for Azure Managed Identity in repository-azure ([#12423](https://github.com/opensearch-project/OpenSearch/issues/12423))
- Add useCompoundFile index setting ([#13478](https://github.com/opensearch-project/OpenSearch/pull/13478))
- Make outbound side of transport protocol dependent ([#13293](https://github.com/opensearch-project/OpenSearch/pull/13293))
- [Remote Store] Upload translog checkpoint as object metadata to translog.tlog([#13637](https://github.com/opensearch-project/OpenSearch/pull/13637))
- [Remote Store] Add dynamic cluster settings to set timeout for segments upload to Remote Store ([#13679](https://github.com/opensearch-project/OpenSearch/pull/13679))
- Add getMetadataFields to MapperService ([#13819](https://github.com/opensearch-project/OpenSearch/pull/13819))
- Add "wildcard" field type that supports efficient wildcard, prefix, and regexp queries ([#13461](https://github.com/opensearch-project/OpenSearch/pull/13461))
- Allow setting query parameters on requests ([#13776](https://github.com/opensearch-project/OpenSearch/issues/13776))
- Add dynamic action retry timeout setting ([#14022](https://github.com/opensearch-project/OpenSearch/issues/14022))
- Add capability to disable source recovery_source for an index ([#13590](https://github.com/opensearch-project/OpenSearch/pull/13590))
- Add remote routing table for remote state publication with experimental feature flag ([#13304](https://github.com/opensearch-project/OpenSearch/pull/13304))
- Add upload flow for writing routing table to remote store ([#13870](https://github.com/opensearch-project/OpenSearch/pull/13870))
- Add dynamic action retry timeout setting ([#14022](https://github.com/opensearch-project/OpenSearch/issues/14022))
- [Remote Store] Add support to disable flush based on translog reader count ([#14027](https://github.com/opensearch-project/OpenSearch/pull/14027))
- Add recovery chunk size setting ([#13997](https://github.com/opensearch-project/OpenSearch/pull/13997))
- [Query Insights] Add exporter support for top n queries ([#12982](https://github.com/opensearch-project/OpenSearch/pull/12982))
- [Query Insights] Add X-Opaque-Id to search request metadata for top n queries ([#13374](https://github.com/opensearch-project/OpenSearch/pull/13374))
- [Streaming Indexing] Enhance RestAction with request / response streaming support ([#13772](https://github.com/opensearch-project/OpenSearch/pull/13772))
- Move Remote Store Migration from DocRep to GA and modify remote migration settings name ([#14100](https://github.com/opensearch-project/OpenSearch/pull/14100))
- [Remote State] Add async remote state deletion task running on an interval, configurable by a setting ([#13995](https://github.com/opensearch-project/OpenSearch/pull/13995))
- Add remote routing table for remote state publication with experimental feature flag ([#13304](https://github.com/opensearch-project/OpenSearch/pull/13304))
- Add support for query level resource usage tracking ([#13172](https://github.com/opensearch-project/OpenSearch/pull/13172))
- [Query Insights] Add cpu and memory metrics to top n queries ([#13739](https://github.com/opensearch-project/OpenSearch/pull/13739))
- Derived field object type support ([#13720](https://github.com/opensearch-project/OpenSearch/pull/13720))
- Support Dynamic Pruning in Cardinality Aggregation ([#13821](https://github.com/opensearch-project/OpenSearch/pull/13821))

### Dependencies
- Bump `com.github.spullara.mustache.java:compiler` from 0.9.10 to 0.9.13 ([#13329](https://github.com/opensearch-project/OpenSearch/pull/13329), [#13559](https://github.com/opensearch-project/OpenSearch/pull/13559))
- Bump `org.apache.commons:commons-text` from 1.11.0 to 1.12.0 ([#13557](https://github.com/opensearch-project/OpenSearch/pull/13557))
- Bump `org.hdrhistogram:HdrHistogram` from 2.1.12 to 2.2.2 ([#13556](https://github.com/opensearch-project/OpenSearch/pull/13556), [#13986](https://github.com/opensearch-project/OpenSearch/pull/13986))
- Bump `com.gradle.enterprise` from 3.17.2 to 3.17.4 ([#13641](https://github.com/opensearch-project/OpenSearch/pull/13641), [#13753](https://github.com/opensearch-project/OpenSearch/pull/13753))
- Bump `org.apache.hadoop:hadoop-minicluster` from 3.3.6 to 3.4.0 ([#13642](https://github.com/opensearch-project/OpenSearch/pull/13642))
- Bump `mockito` from 5.11.0 to 5.12.0 ([#13665](https://github.com/opensearch-project/OpenSearch/pull/13665))
- Bump `com.google.code.gson:gson` from 2.10.1 to 2.11.0 ([#13752](https://github.com/opensearch-project/OpenSearch/pull/13752))
- Bump `ch.qos.logback:logback-core` from 1.5.3 to 1.5.6 ([#13756](https://github.com/opensearch-project/OpenSearch/pull/13756))
- Bump `netty` from 4.1.109.Final to 4.1.110.Final ([#13802](https://github.com/opensearch-project/OpenSearch/pull/13802))
- Bump `jackson` from 2.17.0 to 2.17.1 ([#13817](https://github.com/opensearch-project/OpenSearch/pull/13817))
- Bump `reactor` from 3.5.15 to 3.5.17 ([#13825](https://github.com/opensearch-project/OpenSearch/pull/13825))
- Bump `reactor-netty` from 1.1.17 to 1.1.19 ([#13825](https://github.com/opensearch-project/OpenSearch/pull/13825))
- Bump `commons-cli:commons-cli` from 1.7.0 to 1.8.0 ([#13840](https://github.com/opensearch-project/OpenSearch/pull/13840))
- Bump `org.apache.xmlbeans:xmlbeans` from 5.2.0 to 5.2.1 ([#13839](https://github.com/opensearch-project/OpenSearch/pull/13839))
- Bump `actions/checkout` from 3 to 4 ([#13935](https://github.com/opensearch-project/OpenSearch/pull/13935))
- Bump `com.netflix.nebula.ospackage-base` from 11.9.0 to 11.9.1 ([#13933](https://github.com/opensearch-project/OpenSearch/pull/13933))
- Bump `com.azure:azure-core-http-netty` from 1.12.8 to 1.15.1 ([#14128](https://github.com/opensearch-project/OpenSearch/pull/14128))
- Bump `tim-actions/get-pr-commits` from 1.1.0 to 1.3.1 ([#14126](https://github.com/opensearch-project/OpenSearch/pull/14126))

### Changed
- Add ability for Boolean and date field queries to run when only doc_values are enabled ([#11650](https://github.com/opensearch-project/OpenSearch/pull/11650))
- Refactor implementations of query phase searcher, allow QueryCollectorContext to have zero collectors ([#13481](https://github.com/opensearch-project/OpenSearch/pull/13481))
- Adds support to inject telemetry instances to plugins ([#13636](https://github.com/opensearch-project/OpenSearch/pull/13636))
- Adds support to provide tags with value in Gauge metric. ([#13994](https://github.com/opensearch-project/OpenSearch/pull/13994))
- Move cache removal notifications outside lru lock ([#14017](https://github.com/opensearch-project/OpenSearch/pull/14017))

### Removed
- Remove handling of index.mapper.dynamic in AutoCreateIndex([#13067](https://github.com/opensearch-project/OpenSearch/pull/13067))

### Fixed
- Fix get field mapping API returns 404 error in mixed cluster with multiple versions ([#13624](https://github.com/opensearch-project/OpenSearch/pull/13624))
- Allow clearing `remote_store.compatibility_mode` setting ([#13646](https://github.com/opensearch-project/OpenSearch/pull/13646))
- Painless: ensure type "UnmodifiableMap" for params ([#13885](https://github.com/opensearch-project/OpenSearch/pull/13885))
- Don't return negative scores from `multi_match` query with `cross_fields` type  ([#13829](https://github.com/opensearch-project/OpenSearch/pull/13829))
- Pass parent filter to inner hit query ([#13903](https://github.com/opensearch-project/OpenSearch/pull/13903))
- Fix NPE on restore searchable snapshot ([#13911](https://github.com/opensearch-project/OpenSearch/pull/13911))
- Fix double invocation of postCollection when MultiBucketCollector is present ([#14015](https://github.com/opensearch-project/OpenSearch/pull/14015))
- Fix ReplicaShardBatchAllocator to batch shards without duplicates ([#13710](https://github.com/opensearch-project/OpenSearch/pull/13710))
- Java high-level REST client bulk() is not respecting the bulkRequest.requireAlias(true) method call ([#14146](https://github.com/opensearch-project/OpenSearch/pull/14146))
- Fix ShardNotFoundException during request cache clean up ([#14219](https://github.com/opensearch-project/OpenSearch/pull/14219))
- Fix the rewrite method for MatchOnlyText field query ([#14248](https://github.com/opensearch-project/OpenSearch/pull/14248))
- Fix Concurrent Modification Exception in Indices Request Cache([#14032](https://github.com/opensearch-project/OpenSearch/pull/14221))

## 2024-05-30 Version 1.3.17 Release Notes

### Upgrades
- OpenJDK Update (April 2024 Patch releases), update to Eclipse Temurin 11.0.23+9 ([#13406](https://github.com/opensearch-project/OpenSearch/pull/13406))
- Upgrade BouncyCastle dependencies from 1.75 to 1.78.1 resolving [CVE-2024-30172], [CVE-2024-30171] and [CVE-2024-29857]
- Bump `netty` from 4.1.109.Final to 4.1.110.Final ([#13802](https://github.com/opensearch-project/OpenSearch/pull/13802))

## 2024-05-07 Version 2.14.0 Release Notes

## [2.14.0]
### Added
- Add explicit dependency to validatePom and generatePom tasks ([#12909](https://github.com/opensearch-project/OpenSearch/pull/12909))
- Constant Keyword Field ([#12285](https://github.com/opensearch-project/OpenSearch/pull/12285))
- [Concurrent Segment Search] Perform buildAggregation concurrently and support Composite Aggregations ([#12697](https://github.com/opensearch-project/OpenSearch/pull/12697))
- Convert ingest processor supports ip type ([#12818](https://github.com/opensearch-project/OpenSearch/pull/12818))
- Allow setting KEYSTORE_PASSWORD through env variable ([#12865](https://github.com/opensearch-project/OpenSearch/pull/12865))
- Add a counter to node stat (and _cat/shards) api to track shard going from idle to non-idle ([#12768](https://github.com/opensearch-project/OpenSearch/pull/12768))
- [Concurrent Segment Search] Disable concurrent segment search for system indices and throttled requests ([#12954](https://github.com/opensearch-project/OpenSearch/pull/12954))
- Rename ingest processor supports overriding target field if exists ([#12990](https://github.com/opensearch-project/OpenSearch/pull/12990))
- [Tiered Caching] Make took time caching policy setting dynamic ([#13063](https://github.com/opensearch-project/OpenSearch/pull/13063))
- Detect breaking changes on pull requests ([#9044](https://github.com/opensearch-project/OpenSearch/pull/9044))
- Add cluster primary balance contraint for rebalancing with buffer ([#12656](https://github.com/opensearch-project/OpenSearch/pull/12656))
- [Remote Store] Make translog transfer timeout configurable ([#12704](https://github.com/opensearch-project/OpenSearch/pull/12704))
- Derived fields support to derive field values at query time without indexing ([#12569](https://github.com/opensearch-project/OpenSearch/pull/12569))
- Add support for more than one protocol for transport ([#12967](https://github.com/opensearch-project/OpenSearch/pull/12967))
- [Tiered Caching] Add dimension-based stats to ICache implementations. ([#12531](https://github.com/opensearch-project/OpenSearch/pull/12531))
- Add changes for overriding remote store and replication settings during snapshot restore. ([#11868](https://github.com/opensearch-project/OpenSearch/pull/11868))
- Reject Resize index requests (i.e, split, shrink and clone), While DocRep to SegRep migration is in progress.([#12686](https://github.com/opensearch-project/OpenSearch/pull/12686))
- Add an individual setting of rate limiter for segment replication ([#12959](https://github.com/opensearch-project/OpenSearch/pull/12959))
- [Tiered Caching] Add dimension-based stats to TieredSpilloverCache ([#13236](https://github.com/opensearch-project/OpenSearch/pull/13236))
- [Tiered Caching] Expose new cache stats API ([#13237](https://github.com/opensearch-project/OpenSearch/pull/13237))
- [Streaming Indexing] Ensure support of the new transport by security plugin ([#13174](https://github.com/opensearch-project/OpenSearch/pull/13174))
- Add cluster setting to dynamically configure the buckets for filter rewrite optimization. ([#13179](https://github.com/opensearch-project/OpenSearch/pull/13179))
- [Tiered caching] Make Indices Request Cache Stale Key Mgmt Threshold setting dynamic ([#12941](https://github.com/opensearch-project/OpenSearch/pull/12941))
- Make search query counters dynamic to support all query types ([#12601](https://github.com/opensearch-project/OpenSearch/pull/12601))
- [Tiered Caching] Gate new stats logic behind FeatureFlags.PLUGGABLE_CACHE ([#13238](https://github.com/opensearch-project/OpenSearch/pull/13238))
- [Tiered Caching] Add a dynamic setting to disable/enable disk cache. ([#13373](https://github.com/opensearch-project/OpenSearch/pull/13373))
- Batch mode for async fetching shard information in GatewayAllocator for unassigned shards ([#8746](https://github.com/opensearch-project/OpenSearch/pull/8746))
- [Remote Store] Add settings for remote path type and hash algorithm ([#13225](https://github.com/opensearch-project/OpenSearch/pull/13225))
- [Remote Store] Upload remote paths during remote enabled index creation ([#13386](https://github.com/opensearch-project/OpenSearch/pull/13386))
- [Search Pipeline] Handle default pipeline for multiple indices ([#13276](https://github.com/opensearch-project/OpenSearch/pull/13276))
- [Batch Ingestion] Add `batch_size` to `_bulk` API. ([#12457](https://github.com/opensearch-project/OpenSearch/issues/12457))
- [Remote Store] Add capability of doing refresh as determined by the translog ([#12992](https://github.com/opensearch-project/OpenSearch/pull/12992))
- Support multi ranges traversal when doing date histogram rewrite optimization. ([#13317](https://github.com/opensearch-project/OpenSearch/pull/13317))

### Dependencies
- Bump `org.apache.commons:commons-configuration2` from 2.10.0 to 2.10.1 ([#12896](https://github.com/opensearch-project/OpenSearch/pull/12896))
- Bump `asm` from 9.6 to 9.7 ([#12908](https://github.com/opensearch-project/OpenSearch/pull/12908))
- Bump `net.minidev:json-smart` from 2.5.0 to 2.5.1 ([#12893](https://github.com/opensearch-project/OpenSearch/pull/12893), [#13117](https://github.com/opensearch-project/OpenSearch/pull/13117))
- Bump `netty` from 4.1.107.Final to 4.1.109.Final ([#12924](https://github.com/opensearch-project/OpenSearch/pull/12924), [#13233](https://github.com/opensearch-project/OpenSearch/pull/13233))
- Bump `commons-io:commons-io` from 2.15.1 to 2.16.0 ([#12996](https://github.com/opensearch-project/OpenSearch/pull/12996), [#12998](https://github.com/opensearch-project/OpenSearch/pull/12998), [#12999](https://github.com/opensearch-project/OpenSearch/pull/12999))
- Bump `org.apache.commons:commons-compress` from 1.24.0 to 1.26.1 ([#12627](https://github.com/opensearch-project/OpenSearch/pull/12627))
- Bump `org.apache.commons:commonscodec` from 1.15 to 1.16.1 ([#12627](https://github.com/opensearch-project/OpenSearch/pull/12627))
- Bump `org.apache.commons:commonslang` from 3.13.0 to 3.14.0 ([#12627](https://github.com/opensearch-project/OpenSearch/pull/12627))
- Bump Apache Tika from 2.6.0 to 2.9.2 ([#12627](https://github.com/opensearch-project/OpenSearch/pull/12627))
- Bump `com.gradle.enterprise` from 3.16.2 to 3.17.2 ([#13116](https://github.com/opensearch-project/OpenSearch/pull/13116), [#13191](https://github.com/opensearch-project/OpenSearch/pull/13191), [#13327](https://github.com/opensearch-project/OpenSearch/pull/13327))
- Bump `gradle/wrapper-validation-action` from 2 to 3 ([#13192](https://github.com/opensearch-project/OpenSearch/pull/13192))
- Bump joda from 2.12.2 to 2.12.7 ([#13193](https://github.com/opensearch-project/OpenSearch/pull/13193))
- Bump bouncycastle from 1.77 to 1.78 ([#13243](https://github.com/opensearch-project/OpenSearch/pull/13243))
- Update google dependencies in repository-gcs and discovery-gce ([#13213](https://github.com/opensearch-project/OpenSearch/pull/13213))
- Bump `com.google.apis:google-api-services-compute` from v1-rev235-1.25.0 to v1-rev20240407-2.0.0 ([#13333](https://github.com/opensearch-project/OpenSearch/pull/13333))
- Bump `com.github.spullara.mustache.java:compiler` from 0.9.10 to 0.9.11 ([#13329](https://github.com/opensearch-project/OpenSearch/pull/13329))
- Bump `commons-cli:commons-cli` from 1.6.0 to 1.7.0 ([#13331](https://github.com/opensearch-project/OpenSearch/pull/13331))
- Bump `jakarta.enterprise:jakarta.enterprise.cdi-api` from 4.0.1 to 4.1.0 ([#13328](https://github.com/opensearch-project/OpenSearch/pull/13328))
- Bump `com.google.api.grpc:proto-google-iam-v1` from 0.12.0 to 1.33.0 ([#13332](https://github.com/opensearch-project/OpenSearch/pull/13332))
- Bump `com.squareup.okio:okio` from 3.8.0 to 3.9.0 ([#12997](https://github.com/opensearch-project/OpenSearch/pull/12997))
- OpenJDK Update (April 2024 Patch releases), update to Eclipse Temurin 21.0.3+9 ([#13389](https://github.com/opensearch-project/OpenSearch/pull/13389))
- Bump `org.bouncycastle:bc-fips` from 1.0.2.4 to 1.0.2.5 ([#13446](https://github.com/opensearch-project/OpenSearch/pull/13446))
- Bump `lycheeverse/lychee-action` from 1.9.3 to 1.10.0 ([#13447](https://github.com/opensearch-project/OpenSearch/pull/13447))
- Bump `com.netflix.nebula.ospackage-base` from 11.8.1 to 11.9.0 ([#13440](https://github.com/opensearch-project/OpenSearch/pull/13440))

### Changed
- [BWC and API enforcement] Enforcing the presence of API annotations at build time ([#12872](https://github.com/opensearch-project/OpenSearch/pull/12872))
- Improve built-in secure transports support ([#12907](https://github.com/opensearch-project/OpenSearch/pull/12907))
- Update links to documentation in rest-api-spec ([#13043](https://github.com/opensearch-project/OpenSearch/pull/13043))
- Ignoring unavailable shards during search request execution with ignore_available parameter ([#13298](https://github.com/opensearch-project/OpenSearch/pull/13298))
- Refactoring globMatch using simpleMatchWithNormalizedStrings from Regex ([#13104](https://github.com/opensearch-project/OpenSearch/pull/13104))
- [BWC and API enforcement] Reconsider the breaking changes check policy to detect breaking changes against released versions ([#13292](https://github.com/opensearch-project/OpenSearch/pull/13292))
- Switch to macos-13 runner for precommit and assemble github actions due to macos-latest is now arm64 ([#13412](https://github.com/opensearch-project/OpenSearch/pull/13412))
- [Revert] Prevent unnecessary fetch sub phase processor initialization during fetch phase execution ([#12503](https://github.com/opensearch-project/OpenSearch/pull/12503))

### Fixed
- Fix bulk API ignores ingest pipeline for upsert ([#12883](https://github.com/opensearch-project/OpenSearch/pull/12883))
- Fix issue with feature flags where default value may not be honored ([#12849](https://github.com/opensearch-project/OpenSearch/pull/12849))
- Fix UOE While building Exists query for nested search_as_you_type field ([#12048](https://github.com/opensearch-project/OpenSearch/pull/12048))
- Enabled mockTelemetryPlugin for IT and fixed OOM issues ([#13054](https://github.com/opensearch-project/OpenSearch/pull/13054))
- Fix from and size parameter can be negative when searching ([#13047](https://github.com/opensearch-project/OpenSearch/pull/13047))
- Fix implement mark() and markSupported() in class FilterStreamInput ([#13098](https://github.com/opensearch-project/OpenSearch/pull/13098))
- Fix IndicesRequestCache Stale calculation ([#13070](https://github.com/opensearch-project/OpenSearch/pull/13070)]
- Fix snapshot _status API to return correct status for partial snapshots ([#12812](https://github.com/opensearch-project/OpenSearch/pull/12812))
- Improve the error messages for _stats with closed indices ([#13012](https://github.com/opensearch-project/OpenSearch/pull/13012))
- Ignore BaseRestHandler unconsumed content check as it's always consumed. ([#13290](https://github.com/opensearch-project/OpenSearch/pull/13290))
- Fix mapper_parsing_exception when using flat_object fields with names longer than 11 characters ([#13259](https://github.com/opensearch-project/OpenSearch/pull/13259))
- DATETIME_FORMATTER_CACHING_SETTING experimental feature should not default to 'true' ([#13532](https://github.com/opensearch-project/OpenSearch/pull/13532))
- Fix negative RequestStats metric issue ([#13553](https://github.com/opensearch-project/OpenSearch/pull/13553))

## 2024-04-18 Version 1.3.16 Release Notes

### Upgrades
- Bump `netty` from 4.1.107.Final to 4.1.109.Final ([#12924](https://github.com/opensearch-project/OpenSearch/pull/12924), [#13233](https://github.com/opensearch-project/OpenSearch/pull/13233))

## 2024-03-21 Version 2.13.0 Release Notes

## [2.13.0]
### Added
- [Tiered caching] Introducing cache plugins and exposing Ehcache as one of the pluggable disk cache option ([#11874](https://github.com/opensearch-project/OpenSearch/pull/11874))
- Add support for dependencies in plugin descriptor properties with semver range ([#11441](https://github.com/opensearch-project/OpenSearch/pull/11441))
- Add community_id ingest processor ([#12121](https://github.com/opensearch-project/OpenSearch/pull/12121))
- Introduce query level setting `index.query.max_nested_depth` limiting nested queries ([#3268](https://github.com/opensearch-project/OpenSearch/issues/3268)
- Add toString methods to MultiSearchRequest, MultiGetRequest and CreateIndexRequest ([#12163](https://github.com/opensearch-project/OpenSearch/pull/12163))
- Fix error in RemoteSegmentStoreDirectory when debug logging is enabled ([#12328](https://github.com/opensearch-project/OpenSearch/pull/12328))
- Support for returning scores in matched queries ([#11626](https://github.com/opensearch-project/OpenSearch/pull/11626))
- Add shard id property to SearchLookup for use in field types provided by plugins ([#1063](https://github.com/opensearch-project/OpenSearch/pull/1063))
- [Tiered caching] Make IndicesRequestCache implementation configurable [EXPERIMENTAL] ([#12533](https://github.com/opensearch-project/OpenSearch/pull/12533))
- Force merge API supports performing on primary shards only ([#11269](https://github.com/opensearch-project/OpenSearch/pull/11269))
- Add kuromoji_completion analyzer and filter ([#4835](https://github.com/opensearch-project/OpenSearch/issues/4835))
- [Admission Control] Integrate IO Usage Tracker to the Resource Usage Collector Service and Emit IO Usage Stats ([#11880](https://github.com/opensearch-project/OpenSearch/pull/11880))
- The org.opensearch.bootstrap.Security should support codebase for JAR files with classifiers ([#12586](https://github.com/opensearch-project/OpenSearch/issues/12586))
- Remote reindex: Add support for configurable retry mechanism ([#12561](https://github.com/opensearch-project/OpenSearch/pull/12561))
- Tracing for deep search path ([#12103](https://github.com/opensearch-project/OpenSearch/pull/12103))
- [Metrics Framework] Adds support for asynchronous gauge metric type. ([#12642](https://github.com/opensearch-project/OpenSearch/issues/12642))
- [Tiered caching] Add Stale keys Management and CacheCleaner to IndicesRequestCache ([#12625](https://github.com/opensearch-project/OpenSearch/pull/12625))
- Make search query counters dynamic to support all query types ([#12601](https://github.com/opensearch-project/OpenSearch/pull/12601))
- [Tiered caching] Add policies controlling which values can enter pluggable caches [EXPERIMENTAL] ([#12542](https://github.com/opensearch-project/OpenSearch/pull/12542))
- [Tiered caching] Add serializer integration to allow ehcache disk cache to use non-primitive values ([#12709](https://github.com/opensearch-project/OpenSearch/pull/12709))
- [Admission Control] Integrated IO Based AdmissionController to AdmissionControl Framework ([#12583](https://github.com/opensearch-project/OpenSearch/pull/12583))
- Add Remote Store Migration Experimental flag and allow mixed mode clusters under same ([#11986](https://github.com/opensearch-project/OpenSearch/pull/11986))
- Built-in secure transports support ([#12435](https://github.com/opensearch-project/OpenSearch/pull/12435))
- Lightweight Transport action to verify local term before fetching cluster-state from remote ([#12252](https://github.com/opensearch-project/OpenSearch/pull/12252/))
- Integrate with admission controller for cluster-manager Read API. ([#12496](https://github.com/opensearch-project/OpenSearch/pull/12496))
- Introduce a new setting `index.check_pending_flush.enabled` to expose the ability to disable the check for pending flushes by write threads ([#12710](https://github.com/opensearch-project/OpenSearch/pull/12710))

### Dependencies
- Bump `com.squareup.okio:okio` from 3.7.0 to 3.8.0 ([#12290](https://github.com/opensearch-project/OpenSearch/pull/12290))
- Bump `org.bouncycastle:bcprov-jdk15to18` to `org.bouncycastle:bcprov-jdk18on` version 1.77 ([#12326](https://github.com/opensearch-project/OpenSearch/pull/12326))
- Bump `org.bouncycastle:bcmail-jdk15to18` to `org.bouncycastle:bcmail-jdk18on` version 1.77 ([#12326](https://github.com/opensearch-project/OpenSearch/pull/12326))
- Bump `org.bouncycastle:bcpkix-jdk15to18` to `org.bouncycastle:bcpkix-jdk18on` version 1.77 ([#12326](https://github.com/opensearch-project/OpenSearch/pull/12326))
- Bump `gradle/wrapper-validation-action` from 1 to 2 ([#12367](https://github.com/opensearch-project/OpenSearch/pull/12367))
- Bump `netty` from 4.1.106.Final to 4.1.107.Final ([#12372](https://github.com/opensearch-project/OpenSearch/pull/12372))
- Bump `opentelemetry` from 1.34.1 to 1.36.0 ([#12388](https://github.com/opensearch-project/OpenSearch/pull/12388), [#12618](https://github.com/opensearch-project/OpenSearch/pull/12618))
- Bump Apache Lucene from 9.9.2 to 9.10.0 ([#12392](https://github.com/opensearch-project/OpenSearch/pull/12392))
- Bump `org.apache.logging.log4j:log4j-core` from 2.22.1 to 2.23.1 ([#12464](https://github.com/opensearch-project/OpenSearch/pull/12464), [#12587](https://github.com/opensearch-project/OpenSearch/pull/12587))
- Bump `antlr4` from 4.11.1 to 4.13.1 ([#12445](https://github.com/opensearch-project/OpenSearch/pull/12445))
- Bump `com.netflix.nebula.ospackage-base` from 11.8.0 to 11.8.1 ([#12461](https://github.com/opensearch-project/OpenSearch/pull/12461))
- Bump `peter-evans/create-or-update-comment` from 3 to 4 ([#12462](https://github.com/opensearch-project/OpenSearch/pull/12462))
- Bump `lycheeverse/lychee-action` from 1.9.1 to 1.9.3 ([#12521](https://github.com/opensearch-project/OpenSearch/pull/12521))
- Bump `com.azure:azure-core` from 1.39.0 to 1.47.0 ([#12520](https://github.com/opensearch-project/OpenSearch/pull/12520))
- Bump `ch.qos.logback:logback-core` from 1.2.13 to 1.5.3 ([#12519](https://github.com/opensearch-project/OpenSearch/pull/12519))
- Bump `codecov/codecov-action` from 3 to 4 ([#12585](https://github.com/opensearch-project/OpenSearch/pull/12585))
- Bump `org.apache.zookeeper:zookeeper` from 3.9.1 to 3.9.2 ([#12580](https://github.com/opensearch-project/OpenSearch/pull/12580))
- Bump `org.codehaus.woodstox:stax2-api` from 4.2.1 to 4.2.2 ([#12579](https://github.com/opensearch-project/OpenSearch/pull/12579))
- Bump Jackson version from 2.16.1 to 2.17.0 ([#12611](https://github.com/opensearch-project/OpenSearch/pull/12611), [#12662](https://github.com/opensearch-project/OpenSearch/pull/12662))
- Bump `reactor-netty` from 1.1.15 to 1.1.17 ([#12633](https://github.com/opensearch-project/OpenSearch/pull/12633))
- Bump `reactor` from 3.5.14 to 3.5.15 ([#12633](https://github.com/opensearch-project/OpenSearch/pull/12633))
- Bump `aws-sdk-java` from 2.20.55 to 2.20.86 ([#12251](https://github.com/opensearch-project/OpenSearch/pull/12251))

### Changed
- Allow composite aggregation to run under a parent filter aggregation ([#11499](https://github.com/opensearch-project/OpenSearch/pull/11499))
- Quickly compute terms aggregations when the top-level query is functionally match-all for a segment ([#11643](https://github.com/opensearch-project/OpenSearch/pull/11643))
- Mark fuzzy filter GA and remove experimental setting ([12631](https://github.com/opensearch-project/OpenSearch/pull/12631))
- Keep the election scheduler open until cluster state has been applied ([#11699](https://github.com/opensearch-project/OpenSearch/pull/11699))

### Fixed
- [Revert] [Bug] Check phase name before SearchRequestOperationsListener onPhaseStart ([#12035](https://github.com/opensearch-project/OpenSearch/pull/12035))
- Add support of special WrappingSearchAsyncActionPhase so the onPhaseStart() will always be followed by onPhaseEnd() within AbstractSearchAsyncAction ([#12293](https://github.com/opensearch-project/OpenSearch/pull/12293))
- Add a system property to configure YamlParser codepoint limits ([#12298](https://github.com/opensearch-project/OpenSearch/pull/12298))
- Prevent read beyond slice boundary in ByteArrayIndexInput ([#10481](https://github.com/opensearch-project/OpenSearch/issues/10481))
- Fix the "highlight.max_analyzer_offset" request parameter with "plain" highlighter ([#10919](https://github.com/opensearch-project/OpenSearch/pull/10919))
- Prevent unnecessary fetch sub phase processor initialization during fetch phase execution ([#12503](https://github.com/opensearch-project/OpenSearch/pull/12503))
- Fix `terms` query on `float` field when `doc_values` are turned off by reverting back to `FloatPoint` from `FloatField` ([#12499](https://github.com/opensearch-project/OpenSearch/pull/12499))
- Fix get task API does not refresh resource stats ([#11531](https://github.com/opensearch-project/OpenSearch/pull/11531))
- Fix for deserilization bug in weighted round-robin metadata ([#11679](https://github.com/opensearch-project/OpenSearch/pull/11679))
- onShardResult and onShardFailure are executed on one shard causes opensearch jvm crashed ([#12158](https://github.com/opensearch-project/OpenSearch/pull/12158))
- Avoid overflow when sorting missing last on `epoch_millis` datetime field ([#12676](https://github.com/opensearch-project/OpenSearch/pull/12676))

## 2024-03-01 Version 1.3.15 Release Notes

### Upgrades
- Bump `netty` from 4.1.100.Final to 4.1.104.Final ([#11294](https://github.com/opensearch-project/OpenSearch/pull/11294), [#11775](https://github.com/opensearch-project/OpenSearch/pull/11775)), [#12034](https://github.com/opensearch-project/OpenSearch/pull/12034))
- Bump `netty` from 4.1.106.Final to 4.1.107.Final ([#12372](https://github.com/opensearch-project/OpenSearch/pull/12372))
- Bump `org.apache.kerby:kerb-admin` from 1.0.1 to 2.0.3 ([#12194](https://github.com/opensearch-project/OpenSearch/pull/12194))

## 2024-02-09 Version 2.12.0 Release Notes

## [2.12.0]
### Added
- [Admission control] Add Resource usage collector service and resource usage tracker  ([#9890](https://github.com/opensearch-project/OpenSearch/pull/9890))
- [Admission control] Add enhancements to FS stats to include read/write time, queue size and IO time ([#10541](https://github.com/opensearch-project/OpenSearch/pull/10541))
- [Remote cluster state] Change file names for remote cluster state ([#10557](https://github.com/opensearch-project/OpenSearch/pull/10557))
- [Search Pipelines] Add request-scoped state shared between processors (and three new processors) ([#9405](https://github.com/opensearch-project/OpenSearch/pull/9405))
- Per request phase latency ([#10351](https://github.com/opensearch-project/OpenSearch/issues/10351))
- [Remote Store] Add repository stats for remote store([#10567](https://github.com/opensearch-project/OpenSearch/pull/10567))
- [Remote cluster state] Upload global metadata in cluster state to remote store([#10404](https://github.com/opensearch-project/OpenSearch/pull/10404))
- [Remote cluster state] Download functionality of global metadata from remote store ([#10535](https://github.com/opensearch-project/OpenSearch/pull/10535))
- [Remote cluster state] Restore global metadata from remote store when local state is lost after quorum loss ([#10404](https://github.com/opensearch-project/OpenSearch/pull/10404))
- [Remote cluster state] Make index and global metadata upload timeout dynamic cluster settings ([#10814](https://github.com/opensearch-project/OpenSearch/pull/10814))
- Add search query categorizer ([#10255](https://github.com/opensearch-project/OpenSearch/pull/10255))
- Per request phase latency ([#10351](https://github.com/opensearch-project/OpenSearch/issues/10351))
- Add cluster state stats ([#10670](https://github.com/opensearch-project/OpenSearch/pull/10670))
- Remove ingest processor supports excluding fields ([#10967](https://github.com/opensearch-project/OpenSearch/pull/10967), [#11983](https://github.com/opensearch-project/OpenSearch/pull/11983))
- [Tiered caching] Enabling serialization for IndicesRequestCache key object ([#10275](https://github.com/opensearch-project/OpenSearch/pull/10275))
- [Tiered caching] Defining interfaces, listeners and extending IndicesRequestCache with Tiered cache support ([#10753](https://github.com/opensearch-project/OpenSearch/pull/10753))
- [Remote cluster state] Restore cluster state version during remote state auto restore ([#10853](https://github.com/opensearch-project/OpenSearch/pull/10853))
- Update the indexRandom function to create more segments for concurrent search tests ([10247](https://github.com/opensearch-project/OpenSearch/pull/10247))
- Add support for query profiler with concurrent aggregation ([#9248](https://github.com/opensearch-project/OpenSearch/pull/9248))
- Introduce ConcurrentQueryProfiler to profile query using concurrent segment search path and support concurrency during rewrite and create weight ([10352](https://github.com/opensearch-project/OpenSearch/pull/10352))
- Implement on behalf of token passing for extensions ([#8679](https://github.com/opensearch-project/OpenSearch/pull/8679))
- Provide service accounts tokens to extensions ([#9618](https://github.com/opensearch-project/OpenSearch/pull/9618))
- [Streaming Indexing] Introduce new experimental server HTTP transport based on Netty 4 and Project Reactor (Reactor Netty) ([#9672](https://github.com/opensearch-project/OpenSearch/pull/9672))
- Enable must_exist parameter for update aliases API ([#11210](https://github.com/opensearch-project/OpenSearch/pull/11210))
- Add back half_float BKD based sort query optimization ([#11024](https://github.com/opensearch-project/OpenSearch/pull/11024))
- Request level coordinator slow logs ([#10650](https://github.com/opensearch-project/OpenSearch/pull/10650))
- Add template snippets support for field and target_field in KV ingest processor ([#10040](https://github.com/opensearch-project/OpenSearch/pull/10040))
- Allowing pipeline processors to access index mapping info by passing ingest service ref as part of the processor factory parameters ([#10307](https://github.com/opensearch-project/OpenSearch/pull/10307))
- Add experimental SIMD implementation of B-tree to round down dates ([#11194](https://github.com/opensearch-project/OpenSearch/issues/11194))
- Make number of segment metadata files in remote segment store configurable ([#11329](https://github.com/opensearch-project/OpenSearch/pull/11329))
- Allow changing number of replicas of searchable snapshot index ([#11317](https://github.com/opensearch-project/OpenSearch/pull/11317))
- Adding slf4j license header to LoggerMessageFormat.java ([#11069](https://github.com/opensearch-project/OpenSearch/pull/11069))
- [BWC and API enforcement] Introduce checks for enforcing the API restrictions ([#11175](https://github.com/opensearch-project/OpenSearch/pull/11175))
- Maintainer approval check ([#11378](https://github.com/opensearch-project/OpenSearch/pull/11378))
- Create separate transport action for render search template action ([#11170](https://github.com/opensearch-project/OpenSearch/pull/11170))
- Add additional handling in SearchTemplateRequest when simulate is set to true ([#11591](https://github.com/opensearch-project/OpenSearch/pull/11591))
- Introduce cluster level setting `cluster.index.restrict.replication.type` to prevent replication type setting override during index creations([#11583](https://github.com/opensearch-project/OpenSearch/pull/11583))
- Add match_only_text field that is optimized for storage by trading off positional queries performance ([#6836](https://github.com/opensearch-project/OpenSearch/pull/11039))
- Add copy ingest processor ([#11870](https://github.com/opensearch-project/OpenSearch/pull/11870))
- Introduce new feature flag "WRITEABLE_REMOTE_INDEX" to gate the writeable remote index functionality ([#11717](https://github.com/opensearch-project/OpenSearch/pull/11170))
- Bump OpenTelemetry from 1.32.0 to 1.34.1 ([#11891](https://github.com/opensearch-project/OpenSearch/pull/11891))
- Add remove_by_pattern ingest processor ([#11920](https://github.com/opensearch-project/OpenSearch/pull/11920))
- Support index level allocation filtering for searchable snapshot index ([#11563](https://github.com/opensearch-project/OpenSearch/pull/11563))
- Add `org.opensearch.rest.MethodHandlers` and `RestController#getAllHandlers` ([11876](https://github.com/opensearch-project/OpenSearch/pull/11876))
- New DateTime format for RFC3339 compatible date fields ([#11465](https://github.com/opensearch-project/OpenSearch/pull/11465))
- Add community_id ingest processor ([#12121](https://github.com/opensearch-project/OpenSearch/pull/12121))
- Add support for Google Application Default Credentials in repository-gcs ([#8394](https://github.com/opensearch-project/OpenSearch/pull/8394))
- Remove concurrent segment search feature flag for GA launch ([#12074](https://github.com/opensearch-project/OpenSearch/pull/12074))
- Enable Fuzzy codec for doc id fields using a bloom filter ([#11022](https://github.com/opensearch-project/OpenSearch/pull/11022))
- [Metrics Framework] Adds support for Histogram metric ([#12062](https://github.com/opensearch-project/OpenSearch/pull/12062))
- Support for returning scores in matched queries ([#11626](https://github.com/opensearch-project/OpenSearch/pull/11626))

### Dependencies
- Bumps jetty version to 9.4.52.v20230823 to fix GMS-2023-1857 ([#9822](https://github.com/opensearch-project/OpenSearch/pull/9822))
- Bump Lucene from 9.7.0 to 9.8.0 ([10276](https://github.com/opensearch-project/OpenSearch/pull/10276))
- Bump `commons-io:commons-io` from 2.13.0 to 2.15.1 ([#10294](https://github.com/opensearch-project/OpenSearch/pull/10294), [#11001](https://github.com/opensearch-project/OpenSearch/pull/11001), [#11002](https://github.com/opensearch-project/OpenSearch/pull/11002), [#11446](https://github.com/opensearch-project/OpenSearch/pull/11446), [#11554](https://github.com/opensearch-project/OpenSearch/pull/11554), [#11560](https://github.com/opensearch-project/OpenSearch/pull/11560), [#11796](https://github.com/opensearch-project/OpenSearch/pull/11796))
- Bump `com.google.api.grpc:proto-google-common-protos` from 2.10.0 to 2.25.1 ([#10208](https://github.com/opensearch-project/OpenSearch/pull/10208), [#10298](https://github.com/opensearch-project/OpenSearch/pull/10298))
- Bump `com.netflix.nebula.ospackage-base` from 11.4.0 to 11.8.0 ([#10295](https://github.com/opensearch-project/OpenSearch/pull/10295), [#11630](https://github.com/opensearch-project/OpenSearch/pull/11630), [#12167](https://github.com/opensearch-project/OpenSearch/pull/12167))
- Bump `org.apache.zookeeper:zookeeper` from 3.9.0 to 3.9.1 ([#10506](https://github.com/opensearch-project/OpenSearch/pull/10506))
- Bump `de.thetaphi:forbiddenapis` from 3.5.1 to 3.6 ([#10508](https://github.com/opensearch-project/OpenSearch/pull/10508))
- Bump `org.codehaus.woodstox:stax2-api` from 4.2.1 to 4.2.2 ([#10639](https://github.com/opensearch-project/OpenSearch/pull/10639))
- Bump `org.bouncycastle:bc-fips` from 1.0.2.3 to 1.0.2.4 ([#10297](https://github.com/opensearch-project/OpenSearch/pull/10297))
- Bump `com.google.http-client:google-http-client` from 1.43.2 to 1.43.3 ([#10635](https://github.com/opensearch-project/OpenSearch/pull/10635))
- Bump `com.squareup.okio:okio` from 3.5.0 to 3.7.0 ([#10637](https://github.com/opensearch-project/OpenSearch/pull/10637), [#11632](https://github.com/opensearch-project/OpenSearch/pull/11632))
- Bump `org.apache.logging.log4j:log4j-core` from 2.20.0 to 2.22.1 ([#10858](https://github.com/opensearch-project/OpenSearch/pull/10858), [#11000](https://github.com/opensearch-project/OpenSearch/pull/11000), [#11270](https://github.com/opensearch-project/OpenSearch/pull/11270), [#11695](https://github.com/opensearch-project/OpenSearch/pull/11695))
- Bump `aws-actions/configure-aws-credentials` from 2 to 4 ([#10504](https://github.com/opensearch-project/OpenSearch/pull/10504))
- Bump `stefanzweifel/git-auto-commit-action` from 4 to 5 ([#11171](https://github.com/opensearch-project/OpenSearch/pull/11171))
- Bump `actions/github-script` from 6 to 7.0.1 ([#11271](https://github.com/opensearch-project/OpenSearch/pull/11271), [#12166](https://github.com/opensearch-project/OpenSearch/pull/12166))
- Bump `jackson` and `jackson_databind` from 2.15.2 to 2.16.0 ([#11273](https://github.com/opensearch-project/OpenSearch/pull/11273))
- Bump `netty` from 4.1.100.Final to 4.1.106.Final ([#11294](https://github.com/opensearch-project/OpenSearch/pull/11294), [#11775](https://github.com/opensearch-project/OpenSearch/pull/11775)), [#12034](https://github.com/opensearch-project/OpenSearch/pull/12034))
- Bump `com.avast.gradle:gradle-docker-compose-plugin` from 0.16.12 to 0.17.6 ([#10163](https://github.com/opensearch-project/OpenSearch/pull/10163), [#11692](https://github.com/opensearch-project/OpenSearch/pull/11692))
- Bump `com.squareup.okhttp3:okhttp` from 4.11.0 to 4.12.0 ([#10861](https://github.com/opensearch-project/OpenSearch/pull/10861))
- Bump `org.apache.commons:commons-text` from 1.10.0 to 1.11.0 ([#11344](https://github.com/opensearch-project/OpenSearch/pull/11344))
- Bump `reactor-netty-core` from 1.1.12 to 1.1.15 ([#11350](https://github.com/opensearch-project/OpenSearch/pull/11350)), ([#12042](https://github.com/opensearch-project/OpenSearch/pull/12042))
- Bump `com.gradle.enterprise` from 3.14.1 to 3.16.2 ([#11339](https://github.com/opensearch-project/OpenSearch/pull/11339), [#11629](https://github.com/opensearch-project/OpenSearch/pull/11629), [#12056](https://github.com/opensearch-project/OpenSearch/pull/12056))
- Bump `actions/setup-java` from 3 to 4 ([#11447](https://github.com/opensearch-project/OpenSearch/pull/11447))
- Bump `commons-net:commons-net` from 3.9.0 to 3.10.0 ([#11450](https://github.com/opensearch-project/OpenSearch/pull/11450))
- Bump `org.apache.maven:maven-model` from 3.9.4 to 3.9.6 ([#11445](https://github.com/opensearch-project/OpenSearch/pull/11445))
- Bump `org.apache.xmlbeans:xmlbeans` from 5.1.1 to 5.2.0 ([#11448](https://github.com/opensearch-project/OpenSearch/pull/11448))
- Bump `logback-core` and `logback-classic` to 1.2.13 ([#11521](https://github.com/opensearch-project/OpenSearch/pull/11521))
- Bumps `jetty` version from 9.4.52.v20230823 to 9.4.53.v20231009 ([#11539](https://github.com/opensearch-project/OpenSearch/pull/11539))
- Bump `org.wiremock:wiremock-standalone` from 3.1.0 to 3.3.1 ([#11555](https://github.com/opensearch-project/OpenSearch/pull/11555))
- Bump `org.apache.commons:commons-compress` from 1.24.0 to 1.25.0 ([#11556](https://github.com/opensearch-project/OpenSearch/pull/11556))
- Bump `actions/stale` from 8 to 9 ([#11557](https://github.com/opensearch-project/OpenSearch/pull/11557))
- Bump `com.netflix.nebula:nebula-publishing-plugin` from 20.3.0 to 21.0.0 ([#11671](https://github.com/opensearch-project/OpenSearch/pull/11671))
- Bump `commons-cli:commons-cli` from 1.5.0 to 1.6.0 ([#10996](https://github.com/opensearch-project/OpenSearch/pull/10996))
- Bump `com.maxmind.geoip2:geoip2` from 4.1.0 to 4.2.0 ([#11559](https://github.com/opensearch-project/OpenSearch/pull/11559))
- Bump `org.apache.commons:commons-lang3` from 3.13.0 to 3.14.0 ([#11691](https://github.com/opensearch-project/OpenSearch/pull/11691))
- Bump `com.maxmind.db:maxmind-db` from 3.0.0 to 3.1.0 ([#11693](https://github.com/opensearch-project/OpenSearch/pull/11693))
- Bump `net.java.dev.jna:jna` from 5.13.0 to 5.14.0 ([#11798](https://github.com/opensearch-project/OpenSearch/pull/11798))
- Bump `lycheeverse/lychee-action` from 1.8.0 to 1.9.1 ([#11795](https://github.com/opensearch-project/OpenSearch/pull/11795), [#11887](https://github.com/opensearch-project/OpenSearch/pull/11887))
- Bump `Lucene` from 9.8.0 to 9.9.2 ([#11421](https://github.com/opensearch-project/OpenSearch/pull/11421)), ([#12063](https://github.com/opensearch-project/OpenSearch/pull/12063))
- Bump `com.networknt:json-schema-validator` from 1.0.86 to 1.2.0 ([#11886](https://github.com/opensearch-project/OpenSearch/pull/11886), [#11963](https://github.com/opensearch-project/OpenSearch/pull/11963))
- Bump `com.google.api:gax-httpjson` from 0.103.1 to 2.42.0 ([#11794](https://github.com/opensearch-project/OpenSearch/pull/11794), [#12165](https://github.com/opensearch-project/OpenSearch/pull/12165))
- Bump `com.google.oauth-client:google-oauth-client` from 1.34.1 to 1.35.0 ([#11960](https://github.com/opensearch-project/OpenSearch/pull/11960))
- Bump `com.diffplug.spotless` from 6.23.2 to 6.25.0 ([#11962](https://github.com/opensearch-project/OpenSearch/pull/11962), [#12055](https://github.com/opensearch-project/OpenSearch/pull/12055))
- Bump `com.google.cloud:google-cloud-core` from 2.5.10 to 2.30.0 ([#11961](https://github.com/opensearch-project/OpenSearch/pull/11961))
- Bump `reactor-core` from 3.5.11 to 3.5.14 ([#12042](https://github.com/opensearch-project/OpenSearch/pull/12042))
- Bump `org.apache.shiro:shiro-core` from 1.11.0 to 1.13.0 ([#12200](https://github.com/opensearch-project/OpenSearch/pull/12200))
- Bump `com.google.http-client:google-http-client-jackson2` from 1.43.3 to 1.44.1 ([#12059](https://github.com/opensearch-project/OpenSearch/pull/12059))
- Bump `peter-evans/create-issue-from-file` from 4 to 5 ([#12057](https://github.com/opensearch-project/OpenSearch/pull/12057))
- Bump `org.gradle.test-retry` from 1.5.4 to 1.5.8 ([#12168](https://github.com/opensearch-project/OpenSearch/pull/12168))
- Bump `org.apache.kerby:kerb-admin` from 1.0.1 to 2.0.3 ([#12194](https://github.com/opensearch-project/OpenSearch/pull/12194))

### Changed
- Mute the query profile IT with concurrent execution ([#9840](https://github.com/opensearch-project/OpenSearch/pull/9840))
- Force merge with `only_expunge_deletes` honors max segment size ([#10036](https://github.com/opensearch-project/OpenSearch/pull/10036))
- Add the means to extract the contextual properties from HttpChannel, TcpCChannel and TrasportChannel without excessive typecasting ([#10562](https://github.com/opensearch-project/OpenSearch/pull/10562)), ([#11751](https://github.com/opensearch-project/OpenSearch/pull/11751))
- Introduce new dynamic cluster setting to control slice computation for concurrent segment search ([#9107](https://github.com/opensearch-project/OpenSearch/pull/9107))
- Search pipelines now support asynchronous request and response processors to avoid blocking on a transport thread ([#10598](https://github.com/opensearch-project/OpenSearch/pull/10598))
- [Remote Store] Add Remote Store backpressure rejection stats to `_nodes/stats` ([#10524](https://github.com/opensearch-project/OpenSearch/pull/10524))
- [BUG] Fix java.lang.SecurityException in repository-gcs plugin ([#10642](https://github.com/opensearch-project/OpenSearch/pull/10642))
- Add telemetry tracer/metric enable flag and integ test. ([#10395](https://github.com/opensearch-project/OpenSearch/pull/10395))
- Performance improvement for Datetime field caching ([#4558](https://github.com/opensearch-project/OpenSearch/issues/4558))
- Add instrumentation for indexing in transport bulk action and transport shard bulk action. ([#10273](https://github.com/opensearch-project/OpenSearch/pull/10273))
- Disallow removing some metadata fields by remove ingest processor ([#10895](https://github.com/opensearch-project/OpenSearch/pull/10895), [#11607](https://github.com/opensearch-project/OpenSearch/pull/11607))
- Performance improvement for MultiTerm Queries on Keyword fields ([#7057](https://github.com/opensearch-project/OpenSearch/issues/7057))
- Refactor common parts from the Rounding class into a separate 'round' package ([#11023](https://github.com/opensearch-project/OpenSearch/issues/11023))
- Performance improvement for date histogram aggregations without sub-aggregations ([#11083](https://github.com/opensearch-project/OpenSearch/pull/11083))
- Apply the fast filter optimization to composite aggregation of date histogram source ([#11505](https://github.com/opensearch-project/OpenSearch/pull/11083))
- Disable concurrent aggs for Diversified Sampler and Sampler aggs ([#11087](https://github.com/opensearch-project/OpenSearch/issues/11087))
- Made leader/follower check timeout setting dynamic ([#10528](https://github.com/opensearch-project/OpenSearch/pull/10528))
- Improved performance of numeric exact-match queries ([#11209](https://github.com/opensearch-project/OpenSearch/pull/11209))
- Change error message when per shard document limit is breached ([#11312](https://github.com/opensearch-project/OpenSearch/pull/11312))
- Improve boolean parsing performance ([#11308](https://github.com/opensearch-project/OpenSearch/pull/11308))
- Interpret byte array as primitive using VarHandles ([#11362](https://github.com/opensearch-project/OpenSearch/pull/11362))
- Automatically add scheme to discovery.ec2.endpoint ([#11512](https://github.com/opensearch-project/OpenSearch/pull/11512))
- Restore support for Java 8 for RestClient ([#11562](https://github.com/opensearch-project/OpenSearch/pull/11562))
- Add deleted doc count in _cat/shards ([#11678](https://github.com/opensearch-project/OpenSearch/pull/11678))
- Capture information for additional query types and aggregation types ([#11582](https://github.com/opensearch-project/OpenSearch/pull/11582))
- Use slice_size == shard_size heuristic in terms aggs for concurrent segment search and properly calculate the doc_count_error ([#11732](https://github.com/opensearch-project/OpenSearch/pull/11732))
- Added Support for dynamically adding SearchRequestOperationsListeners with SearchRequestOperationsCompositeListenerFactory ([#11526](https://github.com/opensearch-project/OpenSearch/pull/11526))
- Ensure Jackson default maximums introduced in 2.16.0 do not conflict with OpenSearch settings ([#11890](https://github.com/opensearch-project/OpenSearch/pull/11890))
- Extract cluster management for integration tests into JUnit test rule out of OpenSearchIntegTestCase ([#11877](https://github.com/opensearch-project/OpenSearch/pull/11877)), ([#12000](https://github.com/opensearch-project/OpenSearch/pull/12000))
- Workaround for https://bugs.openjdk.org/browse/JDK-8323659 regression, introduced in JDK-21.0.2 ([#11968](https://github.com/opensearch-project/OpenSearch/pull/11968))
- Updates IpField to be searchable when only `doc_values` are enabled ([#11508](https://github.com/opensearch-project/OpenSearch/pull/11508))
- [Query Insights] Query Insights Framework which currently supports retrieving the most time-consuming queries within the last configured time window ([#11903](https://github.com/opensearch-project/OpenSearch/pull/11903))
- [Query Insights] Implement Top N Queries feature to collect and gather information about high latency queries in a window ([#11904](https://github.com/opensearch-project/OpenSearch/pull/11904))
- Add override support for sampling based on action ([#9621](https://github.com/opensearch-project/OpenSearch/issues/9621))
- Added custom sampler support based on transport action in request ([#9621](https://github.com/opensearch-project/OpenSearch/issues/9621))
- Disable concurrent search for composite aggregation([#12375](https://github.com/opensearch-project/OpenSearch/pull/12375))

### Removed
- Remove deprecated classes for Rounding ([#10956](https://github.com/opensearch-project/OpenSearch/issues/10956))

### Fixed
- Fix failure in dissect ingest processor parsing empty brackets ([#9225](https://github.com/opensearch-project/OpenSearch/pull/9255))
- Fix `class_cast_exception` when passing int to `_version` and other metadata fields in ingest simulate API ([#10101](https://github.com/opensearch-project/OpenSearch/pull/10101))
- Fix Segment Replication ShardLockObtainFailedException bug during index corruption ([10370](https://github.com/opensearch-project/OpenSearch/pull/10370))
- Fix some test methods in SimulatePipelineRequestParsingTests never run and fix test failure ([#10496](https://github.com/opensearch-project/OpenSearch/pull/10496))
- Fix passing wrong parameter when calling newConfigurationException() in DotExpanderProcessor ([#10737](https://github.com/opensearch-project/OpenSearch/pull/10737))
- Delegating CachingWeightWrapper#count to internal weight object ([#10543](https://github.com/opensearch-project/OpenSearch/pull/10543))
- Fix per request latency last phase not tracked ([#10934](https://github.com/opensearch-project/OpenSearch/pull/10934))
- Fix SuggestSearch.testSkipDuplicates by forcing refresh when indexing its test documents ([#11068](https://github.com/opensearch-project/OpenSearch/pull/11068))
- [BUG] Fix the thread context that is not properly cleared and messes up the traces ([#10873](https://github.com/opensearch-project/OpenSearch/pull/10873))
- Handle canMatchSearchAfter for frozen context scenario ([#11249](https://github.com/opensearch-project/OpenSearch/pull/11249))
- Fix the issue with DefaultSpanScope restoring wrong span in the TracerContextStorage upon detach ([#11316](https://github.com/opensearch-project/OpenSearch/issues/11316))
- Remove shadowJar from `lang-painless` module publication ([#11369](https://github.com/opensearch-project/OpenSearch/issues/11369))
- Fix remote shards balancer and remove unused variables ([#11167](https://github.com/opensearch-project/OpenSearch/pull/11167))
- Fix parsing of flat object fields with dots in keys ([#11425](https://github.com/opensearch-project/OpenSearch/pull/11425))
- Fix bug where replication lag grows post primary relocation ([#11238](https://github.com/opensearch-project/OpenSearch/pull/11238))
- Fix noop_update_total metric in indexing stats cannot be updated by bulk API ([#11485](https://github.com/opensearch-project/OpenSearch/pull/11485),[#11917](https://github.com/opensearch-project/OpenSearch/pull/11917))
- Fix for stuck update action in a bulk with `retry_on_conflict` property ([#11152](https://github.com/opensearch-project/OpenSearch/issues/11152))
- Fix template setting override for replication type ([#11417](https://github.com/opensearch-project/OpenSearch/pull/11417))
- Fix Automatic addition of protocol broken in #11512 ([#11609](https://github.com/opensearch-project/OpenSearch/pull/11609))
- Fix issue when calling Delete PIT endpoint and no PITs exist ([#11711](https://github.com/opensearch-project/OpenSearch/pull/11711))
- Fix tracing context propagation for local transport instrumentation ([#11490](https://github.com/opensearch-project/OpenSearch/pull/11490))
- Fix parsing of single line comments in `lang-painless` ([#11815](https://github.com/opensearch-project/OpenSearch/issues/11815))
- Fix memory leak issue in ReorganizingLongHash ([#11953](https://github.com/opensearch-project/OpenSearch/issues/11953))
- Prevent setting remote_snapshot store type on index creation ([#11867](https://github.com/opensearch-project/OpenSearch/pull/11867))
- [BUG] Fix remote shards balancer when filtering throttled nodes ([#11724](https://github.com/opensearch-project/OpenSearch/pull/11724))
- Add advance(int) for numeric values in order to allow point based optimization to kick in ([#12089](https://github.com/opensearch-project/OpenSearch/pull/12089))

## 2023-11-20 Version 2.11.1 Release Notes

## [2.11.1]

### Changed
- Use iterative approach to evaluate Regex.simpleMatch ([#11060](https://github.com/opensearch-project/OpenSearch/pull/11060))

### Fixed
- [BUG] Disable sort optimization for HALF_FLOAT ([#10999](https://github.com/opensearch-project/OpenSearch/pull/10999))
- Adding version condition while adding geoshape doc values to the index, to ensure backward compatibility.([#11095](https://github.com/opensearch-project/OpenSearch/pull/11095))
- Remove shadowJar from `lang-painless` module publication ([#11369](https://github.com/opensearch-project/OpenSearch/issues/11369))

## 2023-10-12 Version 2.11.0 Release Notes

## [2.11]

### Added
- Add coordinator level stats for search latency ([#8386](https://github.com/opensearch-project/OpenSearch/issues/8386))
- Add metrics for thread_pool task wait time ([#9681](https://github.com/opensearch-project/OpenSearch/pull/9681))
- Async blob read support for S3 plugin ([#9694](https://github.com/opensearch-project/OpenSearch/pull/9694))
- [Telemetry-Otel] Added support for OtlpGrpcSpanExporter exporter ([#9666](https://github.com/opensearch-project/OpenSearch/pull/9666))
- Async blob read support for encrypted containers ([#10131](https://github.com/opensearch-project/OpenSearch/pull/10131))
- Implement Visitor Design pattern in QueryBuilder to enable the capability to traverse through the complex QueryBuilder tree. ([#10110](https://github.com/opensearch-project/OpenSearch/pull/10110))
- Add capability to restrict async durability mode for remote indexes ([#10189](https://github.com/opensearch-project/OpenSearch/pull/10189))
- Add Doc Status Counter for Indexing Engine ([#4562](https://github.com/opensearch-project/OpenSearch/issues/4562))
- Add unreferenced file cleanup count to merge stats ([#10204](https://github.com/opensearch-project/OpenSearch/pull/10204))
- Configurable merge policy for index with an option to choose from LogByteSize and Tiered merge policy ([#9992](https://github.com/opensearch-project/OpenSearch/pull/9992))
- [Remote Store] Add support to restrict creation & deletion if system repository and mutation of immutable settings of system repository ([#9839](https://github.com/opensearch-project/OpenSearch/pull/9839))
- Improve compressed request handling ([#10261](https://github.com/opensearch-project/OpenSearch/pull/10261))

### Dependencies
- Bump JNA version from 5.5 to 5.13 ([#9963](https://github.com/opensearch-project/OpenSearch/pull/9963))
- Bump `peter-evans/create-or-update-comment` from 2 to 3 ([#9575](https://github.com/opensearch-project/OpenSearch/pull/9575))
- Bump `actions/checkout` from 2 to 4 ([#9968](https://github.com/opensearch-project/OpenSearch/pull/9968))
- Bump OpenTelemetry from 1.26.0 to 1.30.1 ([#9950](https://github.com/opensearch-project/OpenSearch/pull/9950))
- Bump `org.apache.commons:commons-compress` from 1.23.0 to 1.24.0 ([#9973, #9972](https://github.com/opensearch-project/OpenSearch/pull/9973, https://github.com/opensearch-project/OpenSearch/pull/9972))
- Bump `com.google.cloud:google-cloud-core-http` from 2.21.1 to 2.23.0 ([#9971](https://github.com/opensearch-project/OpenSearch/pull/9971))
- Bump `mockito` from 5.4.0 to 5.5.0 ([#10022](https://github.com/opensearch-project/OpenSearch/pull/10022))
- Bump `bytebuddy` from 1.14.3 to 1.14.7 ([#10022](https://github.com/opensearch-project/OpenSearch/pull/10022))
- Bump `com.zaxxer:SparseBitSet` from 1.2 to 1.3 ([#10098](https://github.com/opensearch-project/OpenSearch/pull/10098))
- Bump `tibdex/github-app-token` from 1.5.0 to 2.1.0 ([#10125](https://github.com/opensearch-project/OpenSearch/pull/10125))
- Bump `org.wiremock:wiremock-standalone` from 2.35.0 to 3.1.0 ([#9752](https://github.com/opensearch-project/OpenSearch/pull/9752))
- Bump `org.eclipse.jgit` from 6.5.0 to 6.7.0 ([#10147](https://github.com/opensearch-project/OpenSearch/pull/10147))
- Bump `codecov/codecov-action` from 2 to 3 ([#10209](https://github.com/opensearch-project/OpenSearch/pull/10209))
- Bump `com.google.http-client:google-http-client-jackson2` from 1.43.2 to 1.43.3 ([#10126](https://github.com/opensearch-project/OpenSearch/pull/10126))
- Bump `org.xerial.snappy:snappy-java` from 1.1.10.3 to 1.1.10.5 ([#10206](https://github.com/opensearch-project/OpenSearch/pull/10206), [#10299](https://github.com/opensearch-project/OpenSearch/pull/10299))
- Bump `org.bouncycastle:bcpkix-jdk15to18` from 1.75 to 1.76 ([10219](https://github.com/opensearch-project/OpenSearch/pull/10219))`
- Bump `org.bouncycastle:bcprov-jdk15to18` from 1.75 to 1.76 ([10219](https://github.com/opensearch-project/OpenSearch/pull/10219))`
- Bump `org.bouncycastle:bcmail-jdk15to18` from 1.75 to 1.76 ([10219](https://github.com/opensearch-project/OpenSearch/pull/10219))`
- Bump asm from 9.5 to 9.6 ([#10302](https://github.com/opensearch-project/OpenSearch/pull/10302))
- Bump netty from 4.1.97.Final to 4.1.99.Final ([#10303](https://github.com/opensearch-project/OpenSearch/pull/10303))
- Bump `peter-evans/create-pull-request` from 3 to 5 ([#10301](https://github.com/opensearch-project/OpenSearch/pull/10301))
- Bump `org.apache.avro:avro` from 1.11.2 to 1.11.3 ([#10210](https://github.com/opensearch-project/OpenSearch/pull/10210))
- Bump `netty` from 4.1.99.Final to 4.1.100.Final ([#10564](https://github.com/opensearch-project/OpenSearch/pull/10564))

### Changed
- Add instrumentation in rest and network layer. ([#9415](https://github.com/opensearch-project/OpenSearch/pull/9415))
- Allow parameterization of tests with OpenSearchIntegTestCase.SuiteScopeTestCase annotation ([#9916](https://github.com/opensearch-project/OpenSearch/pull/9916))
- Add instrumentation in transport service. ([#10042](https://github.com/opensearch-project/OpenSearch/pull/10042))
- [Tracing Framework] Add support for SpanKind. ([#10122](https://github.com/opensearch-project/OpenSearch/pull/10122))
- Pass parent filter to inner query in nested query ([#10246](https://github.com/opensearch-project/OpenSearch/pull/10246))
- Disable concurrent segment search when terminate_after is used ([#10200](https://github.com/opensearch-project/OpenSearch/pull/10200))
- Add instrumentation in Inbound Handler. ([#100143](https://github.com/opensearch-project/OpenSearch/pull/10143))
- Enable remote segment upload backpressure by default ([#10356](https://github.com/opensearch-project/OpenSearch/pull/10356))
- [Remote Store] Add support to reload repository metadata inplace ([#9569](https://github.com/opensearch-project/OpenSearch/pull/9569))
- [Metrics Framework] Add Metrics framework. ([#10241](https://github.com/opensearch-project/OpenSearch/pull/10241))
- Updating the separator for RemoteStoreLockManager since underscore is allowed in base64UUID url charset ([#10379](https://github.com/opensearch-project/OpenSearch/pull/10379))

### Removed
- Remove spurious SGID bit on directories ([#9447](https://github.com/opensearch-project/OpenSearch/pull/9447))

### Fixed
- Fix ignore_missing parameter has no effect when using template snippet in rename ingest processor ([#9725](https://github.com/opensearch-project/OpenSearch/pull/9725))
- Fix broken backward compatibility from 2.7 for IndexSorted field indices ([#10045](https://github.com/opensearch-project/OpenSearch/pull/10045))
- Fix concurrent search NPE when track_total_hits, terminate_after and size=0 are used ([#10082](https://github.com/opensearch-project/OpenSearch/pull/10082))
- Fix remove ingest processor handing ignore_missing parameter not correctly ([10089](https://github.com/opensearch-project/OpenSearch/pull/10089))
- Fix registration and initialization of multiple extensions ([10256](https://github.com/opensearch-project/OpenSearch/pull/10256))
- Fix circular dependency in Settings initialization ([10194](https://github.com/opensearch-project/OpenSearch/pull/10194))
- Fix Segment Replication ShardLockObtainFailedException bug during index corruption ([10370](https://github.com/opensearch-project/OpenSearch/pull/10370))

## 2023-09-08 Version 2.10.0 Release Notes

## [2.10]

### Added
- Add server version as REST response header [#6583](https://github.com/opensearch-project/OpenSearch/issues/6583)
- Start replication checkpointTimers on primary before segments upload to remote store. ([#8221]()https://github.com/opensearch-project/OpenSearch/pull/8221)
- Introduce new static cluster setting to control slice computation for concurrent segment search. ([#8847](https://github.com/opensearch-project/OpenSearch/pull/8884))
- Add configuration for file cache size to max remote data ratio to prevent oversubscription of file cache ([#8606](https://github.com/opensearch-project/OpenSearch/pull/8606))
- Disallow compression level to be set for default and best_compression index codecs ([#8737]()https://github.com/opensearch-project/OpenSearch/pull/8737)
- [distribution/archives] [Linux] [x64] Provide the variant of the distributions bundled with JRE ([#8195]()https://github.com/opensearch-project/OpenSearch/pull/8195)
- Prioritize replica shard movement during shard relocation ([#8875](https://github.com/opensearch-project/OpenSearch/pull/8875))
- Introducing Default and Best Compression codecs as their algorithm name ([#9123](https://github.com/opensearch-project/OpenSearch/pull/9123))
- Make SearchTemplateRequest implement IndicesRequest.Replaceable ([#9122](https://github.com/opensearch-project/OpenSearch/pull/9122))
- [BWC and API enforcement] Define the initial set of annotations, their meaning and relations between them ([#9223](https://github.com/opensearch-project/OpenSearch/pull/9223))
- [Remote Store] Add Segment download stats to remotestore stats API ([#8718](https://github.com/opensearch-project/OpenSearch/pull/8718))
- [Remote Store] Add remote segment transfer stats on NodesStats API ([#9168](https://github.com/opensearch-project/OpenSearch/pull/9168) [#9393](https://github.com/opensearch-project/OpenSearch/pull/9393) [#9454](https://github.com/opensearch-project/OpenSearch/pull/9454))
- [Segment Replication] Support realtime reads for GET requests ([#9212](https://github.com/opensearch-project/OpenSearch/pull/9212))
- Allow test clusters to run with TLS ([#8900](https://github.com/opensearch-project/OpenSearch/pull/8900))
- Add jdk.incubator.vector module support for JDK 20+ ([#8601](https://github.com/opensearch-project/OpenSearch/pull/8601))
- [Feature] Expose term frequency in Painless script score context ([#9081](https://github.com/opensearch-project/OpenSearch/pull/9081))
- Add support for reading partial files to HDFS repository ([#9513](https://github.com/opensearch-project/OpenSearch/issues/9513))
- [Remote Store] Rate limiter integration for remote store uploads and downloads([#9448](https://github.com/opensearch-project/OpenSearch/pull/9448/))
- [BWC and API enforcement] Decorate the existing APIs with proper annotations (part 1) ([#9520](https://github.com/opensearch-project/OpenSearch/pull/9520))
- Add support for extensions to search responses using SearchExtBuilder ([#9379](https://github.com/opensearch-project/OpenSearch/pull/9379))
- [Remote State] Create service to publish cluster state to remote store ([#9160](https://github.com/opensearch-project/OpenSearch/pull/9160))
- Core crypto library to perform encryption and decryption of source content ([#8466](https://github.com/opensearch-project/OpenSearch/pull/8466))
- Expose DelimitedTermFrequencyTokenFilter to allow providing term frequencies along with terms ([#9479](https://github.com/opensearch-project/OpenSearch/pull/9479))
- APIs for performing async blob reads and async downloads from the repository using multiple streams ([#9592](https://github.com/opensearch-project/OpenSearch/issues/9592))
- Add concurrent segment search related metrics to node and index stats ([#9622](https://github.com/opensearch-project/OpenSearch/issues/9622))
- Add average concurrency metric for concurrent segment search ([#9670](https://github.com/opensearch-project/OpenSearch/issues/9670))
- Introduce cluster default remote translog buffer interval setting ([#9584](https://github.com/opensearch-project/OpenSearch/pull/9584))
- Added encryption-sdk lib to provide encryption and decryption capabilities ([#8466](https://github.com/opensearch-project/OpenSearch/pull/8466) [#9289](https://github.com/opensearch-project/OpenSearch/pull/9289))
- [Segment Replication] Adding segment replication statistics rolled up at index, node and cluster level ([#9709](https://github.com/opensearch-project/OpenSearch/pull/9709))
- Added crypto-kms plugin to provide AWS KMS based key providers for encryption/decryption. ([#8465](https://github.com/opensearch-project/OpenSearch/pull/8465))
- [Remote state] Integrate remote cluster state in publish/commit flow ([#9665](https://github.com/opensearch-project/OpenSearch/pull/9665))
- [Remote Store] Changes to introduce repository registration during bootstrap via node attributes. ([#9105](https://github.com/opensearch-project/OpenSearch/pull/9105))
- [Remote state] Auto restore index metadata from last known cluster state ([#9831](https://github.com/opensearch-project/OpenSearch/pull/9831))

### Dependencies
- Bump `org.apache.logging.log4j:log4j-core` from 2.17.1 to 2.20.0 ([#8307](https://github.com/opensearch-project/OpenSearch/pull/8307))
- Bump `io.grpc:grpc-context` from 1.46.0 to 1.57.1 ([#8726](https://github.com/opensearch-project/OpenSearch/pull/8726), [#9145](https://github.com/opensearch-project/OpenSearch/pull/9145))
- Bump `com.netflix.nebula:gradle-info-plugin` from 12.1.5 to 12.1.6 ([#8724](https://github.com/opensearch-project/OpenSearch/pull/8724))
- Bump `commons-codec:commons-codec` from 1.15 to 1.16.0 ([#8725](https://github.com/opensearch-project/OpenSearch/pull/8725))
- Bump `org.apache.zookeeper:zookeeper` from 3.8.1 to 3.9.0 ([#8844](https://github.com/opensearch-project/OpenSearch/pull/8844), [#9146](https://github.com/opensearch-project/OpenSearch/pull/9146))
- Bump `org.gradle.test-retry` from 1.5.3 to 1.5.4 ([#8842](https://github.com/opensearch-project/OpenSearch/pull/8842))
- Bump `com.netflix.nebula.ospackage-base` from 11.3.0 to 11.4.0 ([#8838](https://github.com/opensearch-project/OpenSearch/pull/8838))
- Bump `com.google.http-client:google-http-client-gson` from 1.43.2 to 1.43.3 ([#8840](https://github.com/opensearch-project/OpenSearch/pull/8840))
- OpenJDK Update (July 2023 Patch releases) ([#8869](https://github.com/opensearch-project/OpenSearch/pull/8869))
- Bump `hadoop` libraries from 3.3.4 to 3.3.6 ([#6995](https://github.com/opensearch-project/OpenSearch/pull/6995))
- Bump `com.gradle.enterprise` from 3.13.3 to 3.14.1 ([#8996](https://github.com/opensearch-project/OpenSearch/pull/8996))
- Bump `org.apache.commons:commons-lang3` from 3.12.0 to 3.13.0 ([#8995](https://github.com/opensearch-project/OpenSearch/pull/8995))
- Bump `com.google.cloud:google-cloud-core-http` from 2.21.0 to 2.21.1 ([#8999](https://github.com/opensearch-project/OpenSearch/pull/8999))
- Bump `com.maxmind.geoip2:geoip2` from 4.0.1 to 4.1.0 ([#8998](https://github.com/opensearch-project/OpenSearch/pull/8998))
- Bump `org.apache.commons:commons-lang3` from 3.12.0 to 3.13.0 in /plugins/repository-hdfs ([#8997](https://github.com/opensearch-project/OpenSearch/pull/8997))
- Bump `netty` from 4.1.94.Final to 4.1.96.Final ([#9030](https://github.com/opensearch-project/OpenSearch/pull/9030))
- Bump `com.google.jimfs:jimfs` from 1.2 to 1.3.0 ([#9080](https://github.com/opensearch-project/OpenSearch/pull/9080))
- Bump `io.projectreactor.netty:reactor-netty-http` from 1.1.8 to 1.1.9 ([#9147](https://github.com/opensearch-project/OpenSearch/pull/9147))
- Bump `org.apache.maven:maven-model` from 3.9.3 to 3.9.4 ([#9148](https://github.com/opensearch-project/OpenSearch/pull/9148))
- Bump `com.azure:azure-storage-blob` from 12.22.3 to 12.23.0 ([#9231](https://github.com/opensearch-project/OpenSearch/pull/9231))
- Bump `com.diffplug.spotless` from 6.19.0 to 6.20.0 ([#9227](https://github.com/opensearch-project/OpenSearch/pull/9227))
- Bump `org.xerial.snappy:snappy-java` from 1.1.8.2 to 1.1.10.3 ([#9252](https://github.com/opensearch-project/OpenSearch/pull/9252))
- Bump `com.squareup.okhttp3:okhttp` from 4.9.3 to 4.11.0 ([#9252](https://github.com/opensearch-project/OpenSearch/pull/9252))
- Bump `com.squareup.okio:okio` from 2.8.0 to 3.5.0 ([#9252](https://github.com/opensearch-project/OpenSearch/pull/9252))
- Bump `com.google.code.gson:gson` from 2.9.0 to 2.10.1 ([#9230](https://github.com/opensearch-project/OpenSearch/pull/9230))
- Bump `lycheeverse/lychee-action` from 1.2.0 to 1.8.0 ([#9228](https://github.com/opensearch-project/OpenSearch/pull/9228))
- Bump `snakeyaml` from 2.0 to 2.1 ([#9269](https://github.com/opensearch-project/OpenSearch/pull/9269))
- Bump `aws-actions/configure-aws-credentials` from 1 to 2 ([#9302](https://github.com/opensearch-project/OpenSearch/pull/9302))
- Bump `com.github.luben:zstd-jni` from 1.5.5-3 to 1.5.5-5 ([#9431](https://github.com/opensearch-project/OpenSearch/pull/9431)
- Bump `netty` from 4.1.96.Final to 4.1.97.Final ([#9553](https://github.com/opensearch-project/OpenSearch/pull/9553))
- Bump `io.grpc:grpc-api` from 1.57.1 to 1.57.2 ([#9578](https://github.com/opensearch-project/OpenSearch/pull/9578))
- Add Encryption SDK dependencies ([#8466](https://github.com/opensearch-project/OpenSearch/pull/8466))

### Changed
- Default to mmapfs within hybridfs ([#8508](https://github.com/opensearch-project/OpenSearch/pull/8508))
- Perform aggregation postCollection in ContextIndexSearcher after searching leaves ([#8303](https://github.com/opensearch-project/OpenSearch/pull/8303))
- Make Span exporter configurable ([#8620](https://github.com/opensearch-project/OpenSearch/issues/8620))
- Perform aggregation postCollection in ContextIndexSearcher after searching leaves ([#8303](https://github.com/opensearch-project/OpenSearch/pull/8303))
- [Refactor] StreamIO from common to core.common namespace in core lib ([#8157](https://github.com/opensearch-project/OpenSearch/pull/8157))
- [Refactor] Remaining HPPC to java.util collections ([#8730](https://github.com/opensearch-project/OpenSearch/pull/8730))
- Remote Segment Store Repository setting moved from `index.remote_store.repository` to `index.remote_store.segment.repository` and `cluster.remote_store.repository` to `cluster.remote_store.segment.repository` respectively for Index and Cluster level settings ([#8719](https://github.com/opensearch-project/OpenSearch/pull/8719))
- Change InternalSignificantTerms to sum shard-level superset counts only in final reduce ([#8735](https://github.com/opensearch-project/OpenSearch/pull/8735))
- Exclude 'benchmarks' from codecov report ([#8805](https://github.com/opensearch-project/OpenSearch/pull/8805))
- Create separate SourceLookup instance per segment slice in SignificantTextAggregatorFactory ([#8807](https://github.com/opensearch-project/OpenSearch/pull/8807))
- Replace the deprecated IndexReader APIs with new storedFields() & termVectors() ([#7792](https://github.com/opensearch-project/OpenSearch/pull/7792))
- [Remote Store] Add support to restore only unassigned shards of an index ([#8792](https://github.com/opensearch-project/OpenSearch/pull/8792))
- Add safeguard limits for file cache during node level allocation ([#8208](https://github.com/opensearch-project/OpenSearch/pull/8208))
- Performance improvements for BytesRefHash ([#8788](https://github.com/opensearch-project/OpenSearch/pull/8788))
- Add support for aggregation profiler with concurrent aggregation ([#8801](https://github.com/opensearch-project/OpenSearch/pull/8801))
- [Remove] Deprecated Fractional ByteSizeValue support #9005 ([#9005](https://github.com/opensearch-project/OpenSearch/pull/9005))
- Add support for aggregation profiler with concurrent aggregation ([#8801](https://github.com/opensearch-project/OpenSearch/pull/8801))
- [Remote Store] Restrict user override for remote store index level settings ([#8812](https://github.com/opensearch-project/OpenSearch/pull/8812))
- [Refactor] MediaTypeParser to MediaTypeParserRegistry ([#8636](https://github.com/opensearch-project/OpenSearch/pull/8636))
- Make MultiBucketConsumerService thread safe to use across slices during search ([#9047](https://github.com/opensearch-project/OpenSearch/pull/9047))
- Removed blocking wait in TransportGetSnapshotsAction which was exhausting generic threadpool ([#8377](https://github.com/opensearch-project/OpenSearch/pull/8377))
- Adds support for tracing runnable scenarios ([#8831](https://github.com/opensearch-project/OpenSearch/pull/8831))
- Change shard_size and shard_min_doc_count evaluation to happen in shard level reduce phase ([#9085](https://github.com/opensearch-project/OpenSearch/pull/9085))
- Add attributes to startSpan methods ([#9199](https://github.com/opensearch-project/OpenSearch/pull/9199))
- [Refactor] Task foundation classes to core library - pt 1 ([#9082](https://github.com/opensearch-project/OpenSearch/pull/9082))
- Add support for wrapping CollectorManager with profiling during concurrent execution ([#9129](https://github.com/opensearch-project/OpenSearch/pull/9129))
- Add base class for parameterizing the search based tests #9083 ([#9083](https://github.com/opensearch-project/OpenSearch/pull/9083))
- Add support for wrapping CollectorManager with profiling during concurrent execution ([#9129](https://github.com/opensearch-project/OpenSearch/pull/9129))
- Rethrow OpenSearch exception for non-concurrent path while using concurrent search ([#9177](https://github.com/opensearch-project/OpenSearch/pull/9177))
- Improve performance of encoding composite keys in multi-term aggregations ([#9412](https://github.com/opensearch-project/OpenSearch/pull/9412))
- Refactor Compressors from CompressorFactory to CompressorRegistry for extensibility ([#9262](https://github.com/opensearch-project/OpenSearch/pull/9262))
- Fix sort related ITs for concurrent search ([#9177](https://github.com/opensearch-project/OpenSearch/pull/9466)
- [Remote Store] Implicitly use replication type SEGMENT for remote store clusters ([#9264](https://github.com/opensearch-project/OpenSearch/pull/9264))
- Add support to use trace propagated from client ([#9506](https://github.com/opensearch-project/OpenSearch/pull/9506))
- Separate request-based and settings-based concurrent segment search controls and introduce AggregatorFactory method to determine concurrent search support ([#9469](https://github.com/opensearch-project/OpenSearch/pull/9469))
- [Remote Store] Rate limiter integration for remote store uploads and downloads([#9448](https://github.com/opensearch-project/OpenSearch/pull/9448/))
- [Remote Store] Implicitly use replication type SEGMENT for remote store clusters ([#9264](https://github.com/opensearch-project/OpenSearch/pull/9264))
- Redefine telemetry context restoration and propagation ([#9617](https://github.com/opensearch-project/OpenSearch/pull/9617))
- Use non-concurrent path for sort request on timeseries index and field([#9562](https://github.com/opensearch-project/OpenSearch/pull/9562))
- Added sampler based on `Blanket Probabilistic Sampling rate` and `Override for on demand` ([#9621](https://github.com/opensearch-project/OpenSearch/issues/9621))
- Decouple replication lag from logic to fail stale replicas ([#9507](https://github.com/opensearch-project/OpenSearch/pull/9507))
- Improve performance of rounding dates in date_histogram aggregation ([#9727](https://github.com/opensearch-project/OpenSearch/pull/9727))
- [Remote Store] Add support for Remote Translog Store stats in `_remotestore/stats/` API ([#9263](https://github.com/opensearch-project/OpenSearch/pull/9263))
- Removing the vec file extension from INDEX_STORE_HYBRID_NIO_EXTENSIONS, to ensure the no performance degradation for vector search via Lucene Engine.([#9528](https://github.com/opensearch-project/OpenSearch/pull/9528)))
- Cleanup Unreferenced file on segment merge failure ([#9503](https://github.com/opensearch-project/OpenSearch/pull/9503))
- Move zstd compression codec to external custom-codecs repository ([#9422](https://github.com/opensearch-project/OpenSearch/issues/9422])
- [Remote Store] Add support for Remote Translog Store upload stats in `_nodes/stats/` API ([#8908](https://github.com/opensearch-project/OpenSearch/pull/8908))
- [Remote Store] Removing feature flag to mark feature GA ([#9761](https://github.com/opensearch-project/OpenSearch/pull/9761))

### Removed
- Remove provision to create Remote Indices without Remote Translog Store ([#8719](https://github.com/opensearch-project/OpenSearch/pull/8719))

### Fixed
- Fix flaky ResourceAwareTasksTests.testBasicTaskResourceTracking test ([#8993](https://github.com/opensearch-project/OpenSearch/pull/8993))
- Fix null_pointer_exception when creating or updating ingest pipeline ([#9259](https://github.com/opensearch-project/OpenSearch/pull/9259))
- Fix memory leak when using Zstd Dictionary ([#9403](https://github.com/opensearch-project/OpenSearch/pull/9403))
- Fix condition to remove index create block ([#9437](https://github.com/opensearch-project/OpenSearch/pull/9437))
- Add support to clear archived index setting ([#9019](https://github.com/opensearch-project/OpenSearch/pull/9019))
- Fix range reads in respository-s3 ([9512](https://github.com/opensearch-project/OpenSearch/issues/9512))
- [Segment Replication] Fixed bug where replica shard temporarily serves stale data during an engine reset ([#9495](https://github.com/opensearch-project/OpenSearch/pull/9495))
- Disable shard/segment level search_after short cutting if track_total_hits != false ([#9683](https://github.com/opensearch-project/OpenSearch/pull/9683))
- [Segment Replication] Fixed bug where bytes behind metric is not accurate ([#9686](https://github.com/opensearch-project/OpenSearch/pull/9686))
- Fix broken backward compatibility from 2.7 for IndexSorted field indices ([#10045](https://github.com/opensearch-project/OpenSearch/pull/9725))

## 2023-09-14 Version 1.3.13 Release Notes

### Upgrades
- Bump `netty` from 4.1.96.Final to 4.1.97.Final ([#9553](https://github.com/opensearch-project/OpenSearch/pull/9553))
- Bump `org.xerial.snappy:snappy-java` from 1.1.8.2 to 1.1.10.3 ([#9252](https://github.com/opensearch-project/OpenSearch/pull/9252))
- Bump `com.squareup.okhttp3:okhttp` from 4.9.3 to 4.11.0 ([#9252](https://github.com/opensearch-project/OpenSearch/pull/9252))
- Bump `com.squareup.okio:okio` from 2.8.0 to 3.5.0 ([#9252](https://github.com/opensearch-project/OpenSearch/pull/9252))

## 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))

## 2023-06-06 Version 2.8.0 Release Notes

## [2.8]
### Added
- [Extensions] Moving Extensions APIs to support cross versions via protobuf. ([#7402](https://github.com/opensearch-project/OpenSearch/issues/7402))
- [Extensions] Add IdentityPlugin into core to support Extension identities ([#7246](https://github.com/opensearch-project/OpenSearch/pull/7246))
- Add connectToNodeAsExtension in TransportService ([#6866](https://github.com/opensearch-project/OpenSearch/pull/6866))
- [Search Pipelines] Accept pipelines defined in search source ([#7253](https://github.com/opensearch-project/OpenSearch/pull/7253))
- [Search Pipelines] Add `default_search_pipeline` index setting ([#7470](https://github.com/opensearch-project/OpenSearch/pull/7470))
- [Search Pipelines] Add RenameFieldResponseProcessor for Search Pipelines ([#7377](https://github.com/opensearch-project/OpenSearch/pull/7377))
- [Search Pipelines] Split search pipeline processor factories by type ([#7597](https://github.com/opensearch-project/OpenSearch/pull/7597))
- [Search Pipelines] Add script processor ([#7607](https://github.com/opensearch-project/OpenSearch/pull/7607))
- Add 'unsigned_long' numeric field type ([#6237](https://github.com/opensearch-project/OpenSearch/pull/6237))
- Add back primary shard preference for queries ([#7375](https://github.com/opensearch-project/OpenSearch/pull/7375))
- Add task cancellation timestamp in task API ([#7455](https://github.com/opensearch-project/OpenSearch/pull/7455))
- Adds ExtensionsManager.lookupExtensionSettingsById ([#7466](https://github.com/opensearch-project/OpenSearch/pull/7466))
- SegRep with Remote: Add hook for publishing checkpoint notifications after segment upload to remote store ([#7394](https://github.com/opensearch-project/OpenSearch/pull/7394))
- Add search_after query optimizations with shard/segment short cutting ([#7453](https://github.com/opensearch-project/OpenSearch/pull/7453))
- Provide mechanism to configure XContent parsing constraints (after update to Jackson 2.15.0 and above) ([#7550](https://github.com/opensearch-project/OpenSearch/pull/7550))
- Support to clear filecache using clear indices cache API ([#7498](https://github.com/opensearch-project/OpenSearch/pull/7498))
- Create NamedRoute to map extension routes to a shortened name ([#6870](https://github.com/opensearch-project/OpenSearch/pull/6870))
- Added @dbwiddis as on OpenSearch maintainer ([#7665](https://github.com/opensearch-project/OpenSearch/pull/7665))
- [Extensions] Add ExtensionAwarePlugin extension point to add custom settings for extensions ([#7526](https://github.com/opensearch-project/OpenSearch/pull/7526))
- Add new cluster setting to set default index replication type ([#7420](https://github.com/opensearch-project/OpenSearch/pull/7420))

### Dependencies
- Bump `com.netflix.nebula:gradle-info-plugin` from 12.0.0 to 12.1.3 (#7564)
- Bump `com.netflix.nebula:nebula-publishing-plugin` from 19.2.0 to 20.2.0
- Bump `com.google.protobuf:protobuf-java` from 3.22.2 to 3.22.3
- Bump `jackson` from 2.14.2 to 2.15.0 ([#7286](https://github.com/opensearch-project/OpenSearch/pull/7286))
- Bump `com.netflix.nebula:nebula-publishing-plugin` from 20.2.0 to 20.3.0
- Bump `com.netflix.nebula.ospackage-base` from 11.0.0 to 11.3.0
- Bump `gradle.plugin.com.github.johnrengelman:shadow` from 7.1.2 to 8.0.0
- Bump `jna` from 5.11.0 to 5.13.0
- Bump `commons-io:commons-io` from 2.7 to 2.12.0 (#7661, #7658, #7656)
- Bump `org.apache.shiro:shiro-core` from 1.9.1 to 1.11.0 ([#7397](https://github.com/opensearch-project/OpenSearch/pull/7397))
- Bump `jetty-server` in hdfs-fixture from 9.4.49.v20220914 to 9.4.51.v20230217 ([#7405](https://github.com/opensearch-project/OpenSearch/pull/7405))
- OpenJDK Update (April 2023 Patch releases) ([#7448](https://github.com/opensearch-project/OpenSearch/pull/7448)
- Bump `org.apache.commons:commons-compress` from 1.22 to 1.23.0 (#7462)
- Bump `com.azure:azure-core` from 1.34.0 to 1.39.0
- Bump `com.networknt:json-schema-validator` from 1.0.78 to 1.0.81 (#7460)
- Bump Apache Lucene to 9.6.0 ([#7505](https://github.com/opensearch-project/OpenSearch/pull/7505))
- Bump `com.google.cloud:google-cloud-core-http` from 1.93.3 to 2.17.0 (#7488)
- Bump `com.google.guava:guava` from 30.1.1-jre to 32.0.0-jre (#7565, #7811, #7808, #7807)
- Bump `com.azure:azure-storage-common` from 12.20.0 to 12.21.1 (#7566, #7814)
- Bump `org.apache.commons:commons-compress` from 1.22 to 1.23.0 (#7563)
- Bump `jackson` from 2.15.0 to 2.15.1 ([#7603](https://github.com/opensearch-project/OpenSearch/pull/7603))
- Bump `net.minidev:json-smart` from 2.4.10 to 2.4.11 (#7660, #7812)
- Bump `io.projectreactor.netty:reactor-netty-core` from 1.1.5 to 1.1.7 (#7657)
- Bump `org.apache.maven:maven-model` from 3.9.1 to 3.9.2 (#7655)
- Bump `com.google.api:gax` from 2.17.0 to 2.27.0 (#7697)
- Bump `io.projectreactor.netty:reactor-netty` from 1.1.4 to 1.1.7 ([#7725](https://github.com/opensearch-project/OpenSearch/pull/7725))
- Bump `io.projectreactor.netty:reactor-netty-http` from 1.1.4 to 1.1.7 ([#7725](https://github.com/opensearch-project/OpenSearch/pull/7725))
- Bump `com.google.http-client:google-http-client-appengine` from 1.41.8 to 1.43.2 (#7813)
- Bump `org.gradle.test-retry` from 1.5.2 to 1.5.3 (#7810)

### Changed
- Enable `./gradlew build` on MacOS by disabling bcw tests ([#7303](https://github.com/opensearch-project/OpenSearch/pull/7303))
- Moved concurrent-search from sandbox plugin to server module behind feature flag ([#7203](https://github.com/opensearch-project/OpenSearch/pull/7203))
- Allow access to indices cache clear APIs for read only indexes ([#7303](https://github.com/opensearch-project/OpenSearch/pull/7303))
- Changed concurrent-search threadpool type to be resizable and support task resource tracking ([#7502](https://github.com/opensearch-project/OpenSearch/pull/7502))
- Default search preference to _primary for searchable snapshot indices ([#7628](https://github.com/opensearch-project/OpenSearch/pull/7628))
- [Segment Replication] Remove codec name string match check for checkpoints ([#7741](https://github.com/opensearch-project/OpenSearch/pull/7741))

### Fixed
- Add more index blocks check for resize APIs ([#6774](https://github.com/opensearch-project/OpenSearch/pull/6774))
- Replaces ZipInputStream with ZipFile to fix Zip Slip vulnerability ([#7230](https://github.com/opensearch-project/OpenSearch/pull/7230))
- Add missing validation/parsing of SearchBackpressureMode of SearchBackpressureSettings ([#7541](https://github.com/opensearch-project/OpenSearch/pull/7541))
- [Search Pipelines] Better exception handling in search pipelines ([#7735](https://github.com/opensearch-project/OpenSearch/pull/7735))
- Fix input validation in segments and delete pit request ([#6645](https://github.com/opensearch-project/OpenSearch/pull/6645))

Release Notes: https://github.com/opensearch-project/OpenSearch/blob/main/release-notes/opensearch.release-notes-1.3.10.md

## 2023-04-18 Version 2.7.0 Release Notes

## [2.7]
### Added
- Add GeoTile and GeoHash Grid aggregations on GeoShapes. ([#5589](https://github.com/opensearch-project/OpenSearch/pull/5589))
- Disallow multiple data paths for search nodes ([#6427](https://github.com/opensearch-project/OpenSearch/pull/6427))
- [Segment Replication] Allocation and rebalancing based on average primary shard count per index ([#6422](https://github.com/opensearch-project/OpenSearch/pull/6422))
- The truncation limit of the OpenSearchJsonLayout logger is now configurable ([#6569](https://github.com/opensearch-project/OpenSearch/pull/6569))
- Add 'base_path' setting to File System Repository ([#6558](https://github.com/opensearch-project/OpenSearch/pull/6558))
- Return success on DeletePits when no PITs exist. ([#6544](https://github.com/opensearch-project/OpenSearch/pull/6544))
- Add initial search pipelines ([#6587](https://github.com/opensearch-project/OpenSearch/pull/6587))
- Add node repurpose command for search nodes ([#6517](https://github.com/opensearch-project/OpenSearch/pull/6517))
- Add wait_for_completion parameter to resize, open, and forcemerge APIs ([#6434](https://github.com/opensearch-project/OpenSearch/pull/6434))
- [Segment Replication] Apply backpressure when replicas fall behind ([#6563](https://github.com/opensearch-project/OpenSearch/pull/6563))
- [Remote Store] Integrate remote segment store in peer recovery flow ([#6664](https://github.com/opensearch-project/OpenSearch/pull/6664))
- Enable sort optimization for all NumericTypes ([#6464](https://github.com/opensearch-project/OpenSearch/pull/6464)
- Remove 'cluster_manager' role attachment when using 'node.master' deprecated setting ([#6331](https://github.com/opensearch-project/OpenSearch/pull/6331))
- Add new cluster settings to ignore weighted round-robin routing and fallback to default behaviour. ([#6834](https://github.com/opensearch-project/OpenSearch/pull/6834))
- Add experimental support for ZSTD compression. ([#3577](https://github.com/opensearch-project/OpenSearch/pull/3577))
- [Segment Replication] Add point in time and scroll query compatibility. ([#6644](https://github.com/opensearch-project/OpenSearch/pull/6644))
- Add retry delay as dynamic setting for cluster maanger throttling. ([#6998](https://github.com/opensearch-project/OpenSearch/pull/6998))
- Introduce full support for searchable snapshots ([#5087](https://github.com/opensearch-project/OpenSearch/issues/5087))
- Introduce full support for Segment Replication ([#5147](https://github.com/opensearch-project/OpenSearch/issues/5147))

### Dependencies
- Bump `org.apache.logging.log4j:log4j-core` from 2.18.0 to 2.20.0 ([#6490](https://github.com/opensearch-project/OpenSearch/pull/6490))
- Bump `com.azure:azure-storage-common` from 12.19.3 to 12.20.0 ([#6492](https://github.com/opensearch-project/OpenSearch/pull/6492)
- Bump `snakeyaml` from 1.33 to 2.0 ([#6511](https://github.com/opensearch-project/OpenSearch/pull/6511))
- Bump `io.projectreactor.netty:reactor-netty` from 1.1.3 to 1.1.4
- Bump `com.avast.gradle:gradle-docker-compose-plugin` from 0.15.2 to 0.16.11
- Bump `net.minidev:json-smart` from 2.4.8 to 2.4.9
- Bump `com.google.protobuf:protobuf-java` to 3.22.2 ([#6994](https://github.com/opensearch-project/OpenSearch/pull/6994))
- Bump Netty to 4.1.90.Final ([#6677](https://github.com/opensearch-project/OpenSearch/pull/6677)
- Bump `com.diffplug.spotless` from 6.15.0 to 6.17.0
- Bump `org.apache.zookeeper:zookeeper` from 3.8.0 to 3.8.1
- Bump `net.minidev:json-smart` from 2.4.7 to 2.4.10
- Bump `org.apache.maven:maven-model` from 3.6.2 to 3.9.1
- Bump `org.codehaus.jettison:jettison` from 1.5.3 to 1.5.4 ([#6878](https://github.com/opensearch-project/OpenSearch/pull/6878))
- Add `com.github.luben:zstd-jni:1.5.5-1` ([#3577](https://github.com/opensearch-project/OpenSearch/pull/3577))
- Bump: Netty from 4.1.90.Final to 4.1.91.Final , ASM 9.4 to ASM 9.5, ByteBuddy 1.14.2 to 1.14.3 ([#6981](https://github.com/opensearch-project/OpenSearch/pull/6981))
- Bump `com.azure:azure-storage-blob` from 12.15.0 to 12.21.1
- Bump `org.gradle.test-retry` from 1.5.1 to 1.5.2
- Bump `org.apache.hadoop:hadoop-minicluster` from 3.3.4 to 3.3.5

### Changed
- Require MediaType in Strings.toString API ([#6009](https://github.com/opensearch-project/OpenSearch/pull/6009))
- [Refactor] XContent base classes from xcontent to core library ([#5902](https://github.com/opensearch-project/OpenSearch/pull/5902))
- Added a new field type: flat_object ([#6507](https://github.com/opensearch-project/OpenSearch/pull/6507))
- Changed `opensearch-env` to respect already set `OPENSEARCH_HOME` environment variable ([#6956](https://github.com/opensearch-project/OpenSearch/pull/6956/))
- Increased visibility of BaseRestHandler’s `unrecognized` method using a new public `unrecognizedStrings` method. ([#7125](https://github.com/opensearch-project/OpenSearch/pull/7125))

### Deprecated
- Map, List, and Set in org.opensearch.common.collect ([#6609](https://github.com/opensearch-project/OpenSearch/pull/6609))

### Fixed
- Added depth check in doc parser for deep nested document ([#5199](https://github.com/opensearch-project/OpenSearch/pull/5199))
- Added equals/hashcode for named DocValueFormat.DateTime inner class ([#6357](https://github.com/opensearch-project/OpenSearch/pull/6357))
- Fixed bug for searchable snapshot to take 'base_path' of blob into account ([#6558](https://github.com/opensearch-project/OpenSearch/pull/6558))
- Fix fuzziness validation ([#5805](https://github.com/opensearch-project/OpenSearch/pull/5805))
- Avoid negative memory result in IndicesQueryCache stats calculation ([#6917](https://github.com/opensearch-project/OpenSearch/pull/6917))
- Fix GetSnapshots to not return non-existent snapshots with ignore_unavailable=true ([#6839](https://github.com/opensearch-project/OpenSearch/pull/6839))
- Fix GlobalAggregation with profile option enabled returns incorrect result ([#7114](https://github.com/opensearch-project/OpenSearch/pull/7114))

Release Notes: https://github.com/opensearch-project/OpenSearch/blob/main/release-notes/opensearch.release-notes-1.3.9.md

## 2023-02-22 Version 2.6.0 Release Notes

## [2.6]
### Added
- Add index create block when all nodes have breached high disk watermark ([#5852](https://github.com/opensearch-project/OpenSearch/pull/5852))
- Add cluster manager throttling stats in nodes/stats API ([#5790](https://github.com/opensearch-project/OpenSearch/pull/5790))
- Add support for feature flags in opensearch.yml ([#4959](https://github.com/opensearch-project/OpenSearch/pull/4959))
- Add query for initialized extensions ([#5658](https://github.com/opensearch-project/OpenSearch/pull/5658))
- Add update-index-settings allowlist for searchable snapshot ([#5907](https://github.com/opensearch-project/OpenSearch/pull/5907))
- Add new cat/segment_replication API to surface Segment Replication metrics ([#5718](https://github.com/opensearch-project/OpenSearch/pull/5718)).
- Replace latches with CompletableFutures for extensions ([#5646](https://github.com/opensearch-project/OpenSearch/pull/5646))
- Add support to disallow search request with preference parameter with strict weighted shard routing([#5874](https://github.com/opensearch-project/OpenSearch/pull/5874))
- Add support to apply index create block ([#4603](https://github.com/opensearch-project/OpenSearch/issues/4603))
- Add support for minimum compatible version for extensions ([#6003](https://github.com/opensearch-project/OpenSearch/pull/6003))
- Add a guardrail to limit maximum number of shard on the cluster ([#6143](https://github.com/opensearch-project/OpenSearch/pull/6143))
- Add cancellation of in-flight SearchTasks based on resource consumption ([#5606](https://github.com/opensearch-project/OpenSearch/pull/5605))
- Add support for ppc64le architecture ([#5459](https://github.com/opensearch-project/OpenSearch/pull/5459))
- Add a setting to control auto release of OpenSearch managed index creation block ([#6277](https://github.com/opensearch-project/OpenSearch/pull/6277))
- Fix timeout error when adding a document to an index with extension running ([#6275](https://github.com/opensearch-project/OpenSearch/pull/6275))
- Handle translog upload during primary relocation for remote-backed indexes ([#5804](https://github.com/opensearch-project/OpenSearch/pull/5804))
- Batch translog sync/upload per x ms for remote-backed indexes ([#5854](https://github.com/opensearch-project/OpenSearch/pull/5854))

### Dependencies
- Update nebula-publishing-plugin to 19.2.0 ([#5704](https://github.com/opensearch-project/OpenSearch/pull/5704))
- Bump `reactor-netty` from 1.1.1 to 1.1.2 ([#5878](https://github.com/opensearch-project/OpenSearch/pull/5878))
- OpenJDK Update (January 2023 Patch releases) ([#6075](https://github.com/opensearch-project/OpenSearch/pull/6075))
- Bump `Mockito` from 4.7.0 to 5.1.0, `ByteBuddy` from 1.12.18 to 1.12.22 ([#6088](https://github.com/opensearch-project/OpenSearch/pull/6088))
- Bump `joda` from 2.10.13 to 2.12.2 ([#6095](https://github.com/opensearch-project/OpenSearch/pull/6095))
- Upgrade to Lucene 9.5.0 ([#6078](https://github.com/opensearch-project/OpenSearch/pull/6078))
- Bump antlr4 from 4.9.3 to 4.11.1 ([#6116](https://github.com/opensearch-project/OpenSearch/pull/6116))
- Bump `Netty` from 4.1.86.Final to 4.1.87.Final ([#6130](https://github.com/opensearch-project/OpenSearch/pull/6130))
- Bump `Jackson` from 2.14.1 to 2.14.2 ([#6129](https://github.com/opensearch-project/OpenSearch/pull/6129))
- Bump `org.apache.ant:ant` from 1.10.12 to 1.10.13 ([#6306](https://github.com/opensearch-project/OpenSearch/pull/6306))
- Bump `azure-core-http-netty` from 1.12.7 to 1.12.8 ([#6304](https://github.com/opensearch-project/OpenSearch/pull/6304))
- Bump `com.azure:azure-storage-common` from 12.18.1 to 12.19.3 ([#6304](https://github.com/opensearch-project/OpenSearch/pull/6304))
- Bump `reactor-netty-http` from 1.0.24 to 1.1.2 ([#6309](https://github.com/opensearch-project/OpenSearch/pull/6309))
- Bump `com.google.protobuf:protobuf-java` from 3.21.12 to 3.22.0 ([#6387](https://github.com/opensearch-project/OpenSearch/pull/6387))
- Bump `io.projectreactor.netty:reactor-netty` from 1.1.2 to 1.1.3 ([#6386](https://github.com/opensearch-project/OpenSearch/pull/6386))
- Bump `com.diffplug.spotless` from 6.10.0 to 6.15.0 ([#6385](https://github.com/opensearch-project/OpenSearch/pull/6385))
- Bump `jettison` from 1.5.1 to 1.5.3 ([#6391](https://github.com/opensearch-project/OpenSearch/pull/6391))

### Changed
- Use ReplicationFailedException instead of OpensearchException in ReplicationTarget ([#4725](https://github.com/opensearch-project/OpenSearch/pull/4725))
- [Refactor] Use local opensearch.common.SetOnce instead of lucene's utility class ([#5947](https://github.com/opensearch-project/OpenSearch/pull/5947))
- Cluster health call to throw decommissioned exception for local decommissioned node([#6008](https://github.com/opensearch-project/OpenSearch/pull/6008))
- [Refactor] core.common to new opensearch-common library ([#5976](https://github.com/opensearch-project/OpenSearch/pull/5976))
- Update API spec for cluster health API ([#6399](https://github.com/opensearch-project/OpenSearch/pull/6399))

### Removed
- Remove deprecated org.gradle.util.DistributionLocator usage ([#6212](https://github.com/opensearch-project/OpenSearch/pull/6212))

### Fixed
- [Segment Replication] Fix for peer recovery ([#5344](https://github.com/opensearch-project/OpenSearch/pull/5344))
- Fix weighted shard routing state across search requests([#6004](https://github.com/opensearch-project/OpenSearch/pull/6004))
- [Segment Replication] Fix bug where inaccurate sequence numbers are sent during replication ([#6122](https://github.com/opensearch-project/OpenSearch/pull/6122))
- Enable numeric sort optimisation for few numerical sort types ([#6321](https://github.com/opensearch-project/OpenSearch/pull/6321))
- Fix Opensearch repository-s3 plugin cannot read ServiceAccount token ([#6390](https://github.com/opensearch-project/OpenSearch/pull/6390)

Release Notes: https://github.com/opensearch-project/OpenSearch/blob/main/release-notes/opensearch.release-notes-1.3.8.md

## 2023-01-10 Version 2.5.0 Release Notes

## [2.5]
### Added
- Prevent deletion of snapshots that are backing searchable snapshot indexes ([#5365](https://github.com/opensearch-project/OpenSearch/pull/5365))
- Reject bulk requests with invalid actions ([#5384](https://github.com/opensearch-project/OpenSearch/issues/5384))
- Add max_shard_size parameter for shrink API ([#5229](https://github.com/opensearch-project/OpenSearch/pull/5229))
- Add experimental support for extensions ([#5347](https://github.com/opensearch-project/OpenSearch/pull/5347)), ([#5518](https://github.com/opensearch-project/OpenSearch/pull/5518)), ([#5597](https://github.com/opensearch-project/OpenSearch/pull/5597)), ([#5615](https://github.com/opensearch-project/OpenSearch/pull/5615)))
- Add support to register settings dynamically ([#5495](https://github.com/opensearch-project/OpenSearch/pull/5495))
- Add auto release workflow ([#5582](https://github.com/opensearch-project/OpenSearch/pull/5582))
- Add CI bundle pattern to distribution download ([#5348](https://github.com/opensearch-project/OpenSearch/pull/5348))
- Experimental support for extended backward compatiblity in searchable snapshots ([#5429](https://github.com/opensearch-project/OpenSearch/pull/5429))
- Add support of default replica count cluster setting ([#5610](https://github.com/opensearch-project/OpenSearch/pull/5610))
- Add support for refresh level durability ([#5253](https://github.com/opensearch-project/OpenSearch/pull/5253))
- Add Request level Durability using Remote Translog functionality ([#5757](https://github.com/opensearch-project/OpenSearch/pull/5757))
- Support to fail open requests on search shard failures with weighted traffic routing ([#5072](https://github.com/opensearch-project/OpenSearch/pull/5072))
- Support versioning for Weighted routing apis([#5255](https://github.com/opensearch-project/OpenSearch/pull/5255))
- Add support for discovered cluster manager and remove local weights ([#5680](https://github.com/opensearch-project/OpenSearch/pull/5680))
- Add new level to get health per awareness attribute in _cluster/health ([#5694](https://github.com/opensearch-project/OpenSearch/pull/5694))

### Changed
- Change http code for DecommissioningFailedException from 500 to 400 ([#5283](https://github.com/opensearch-project/OpenSearch/pull/5283))
- Pre conditions check before updating weighted routing metadata ([#4955](https://github.com/opensearch-project/OpenSearch/pull/4955))
- Support remote translog transfer for request level durability ([#4480](https://github.com/opensearch-project/OpenSearch/pull/4480))
- Gracefully handle concurrent zone decommission action ([#5542](https://github.com/opensearch-project/OpenSearch/pull/5542))

### Deprecated
- Refactor fuzziness interface on query builders ([#5433](https://github.com/opensearch-project/OpenSearch/pull/5433))

### Fixed
- Fix case sensitivity for wildcard queries ([#5462](https://github.com/opensearch-project/OpenSearch/pull/5462))
- Apply cluster manager throttling settings during bootstrap ([#5524](https://github.com/opensearch-project/OpenSearch/pull/5524))
- Update thresholds map when cluster manager throttling setting is removed ([#5524](https://github.com/opensearch-project/OpenSearch/pull/5524))
- Fix backward compatibility for static cluster manager throttling threshold setting ([#5633](https://github.com/opensearch-project/OpenSearch/pull/5633))
- Fix index exclusion behavior in snapshot restore and clone APIs ([#5626](https://github.com/opensearch-project/OpenSearch/pull/5626))
- Fix graph filter error in search ([#5665](https://github.com/opensearch-project/OpenSearch/pull/5665))

### Dependencies
- Bumps `bcpg-fips` from 1.0.5.1 to 1.0.7.1 ([#5148](https://github.com/opensearch-project/OpenSearch/pull/5148))
- Bumps `commons-compress` from 1.21 to 1.22 ([#5104](https://github.com/opensearch-project/OpenSearch/pull/5104))
- Bumps `geoip2` from 3.0.1 to 3.0.2 in /modules/ingest-geoip ([#5201](https://github.com/opensearch-project/OpenSearch/pull/5201))
- Bumps `gson` from 2.9.0 to 2.10 in /plugins/repository-hdfs ([#5184](https://github.com/opensearch-project/OpenSearch/pull/5184))
- Bumps `protobuf-java` from 3.21.8 to 3.21.9 in /test/fixtures/hdfs-fixture ([#5185](https://github.com/opensearch-project/OpenSearch/pull/5185))
- Bumps `gradle-extra-configurations-plugin` from 7.0.0 to 8.0.0 ([#5330](https://github.com/opensearch-project/OpenSearch/pull/5330))
- Bumps `jcodings` from 1.0.57 to 1.0.58 ([#5330](https://github.com/opensearch-project/OpenSearch/pull/5330))
- Bumps `google-http-client-jackson2` from 1.35.0 to 1.42.3 ([#5330](https://github.com/opensearch-project/OpenSearch/pull/5330))
- Bumps `azure-core` from 1.33.0 to 1.34.0 ([#5330](https://github.com/opensearch-project/OpenSearch/pull/5330))
- Bumps `azure-core-http-netty` from 1.12.4 to 1.12.7 ([#5330](https://github.com/opensearch-project/OpenSearch/pull/5330))
- Bumps `maxmind-db` from 2.0.0 to 2.1.0 ([#5330](https://github.com/opensearch-project/OpenSearch/pull/5330))
- Bumps `json-schema-validator` from 1.0.69 to 1.0.73 ([#5330](https://github.com/opensearch-project/OpenSearch/pull/5330))
- Bumps `proto-google-common-protos` from 2.8.0 to 2.10.0 ([#5330](https://github.com/opensearch-project/OpenSearch/pull/5330))
- Bumps `protobuf-java` from 3.21.7 to 3.21.9 ([#5330](https://github.com/opensearch-project/OpenSearch/pull/5330))
- Bumps `gradle` from 7.5 to 7.6 ([#5382](https://github.com/opensearch-project/OpenSearch/pull/5382))
- Bumps `jackson` from 2.14.0 to 2.14.1 ([#5355](https://github.com/opensearch-project/OpenSearch/pull/5355))
- Bumps `apache-rat` from 0.13 to 0.15 ([#5686](https://github.com/opensearch-project/OpenSearch/pull/5686))
- Bumps `reactor-netty` from 1.0.18 to 1.1.1 ([#5685](https://github.com/opensearch-project/OpenSearch/pull/5685))
- Bumps `gradle-info-plugin` from 7.1.3 to 12.0.0 ([#5684](https://github.com/opensearch-project/OpenSearch/pull/5684))

Release Notes: https://github.com/opensearch-project/OpenSearch/blob/main/release-notes/opensearch.release-notes-1.3.7.md

Release Notes: https://github.com/opensearch-project/OpenSearch/blob/main/release-notes/opensearch.release-notes-2.4.1.md

Release Notes: https://github.com/opensearch-project/OpenSearch/blob/main/release-notes/opensearch.release-notes-2.4.0.md