Merge branch 'main' into os-12371

.github/CODEOWNERS

@@ -11,7 +11,7 @@
 #   3. Use the command palette to run the CODEOWNERS: Show owners of current file command, which will display all code owners for the current file.
 
 # Default ownership for all repo files
-* @abbashus @adnapibar @anasalkouz @andrross @Bukhtawar @CEHENKLE @dblock @dbwiddis @dreamer-89 @gbbafna @kotwanikunal @mch2 @msfroh @nknize @owaiskazi19 @reta @Rishikesh1159 @ryanbogan @sachinpkale @saratvemulapalli @setiah @shwetathareja @sohami @tlfeng @VachaShah
+* @anasalkouz @andrross @Bukhtawar @CEHENKLE @dblock @dbwiddis @dreamer-89 @gbbafna @kotwanikunal @mch2 @msfroh @nknize @owaiskazi19 @reta @Rishikesh1159 @sachinpkale @saratvemulapalli @shwetathareja @sohami @tlfeng @VachaShah
 
 /modules/transport-netty4/ @peternied
 
@@ -24,4 +24,4 @@
 
 /.github/ @peternied
 
-/MAINTAINERS.md @abbashus @adnapibar @anasalkouz @andrross @Bukhtawar @CEHENKLE @dblock @dbwiddis @dreamer-89 @gbbafna @kotwanikunal @mch2 @msfroh @nknize @owaiskazi19 @peternied @reta @Rishikesh1159 @ryanbogan @sachinpkale @saratvemulapalli @setiah @shwetathareja @sohami @tlfeng @VachaShah
+/MAINTAINERS.md @anasalkouz @andrross @Bukhtawar @CEHENKLE @dblock @dbwiddis @dreamer-89 @gbbafna @kotwanikunal @mch2 @msfroh @nknize @owaiskazi19 @peternied @reta @Rishikesh1159 @sachinpkale @saratvemulapalli @shwetathareja @sohami @tlfeng @VachaShah

.github/workflows/changelog_verifier.yml

@@ -1,7 +1,7 @@
 name: "Changelog Verifier"
 on:
   pull_request:
-    types: [opened, edited, review_requested, synchronize, reopened, ready_for_review, labeled, unlabeled]
+    types: [opened, synchronize, reopened, ready_for_review, labeled, unlabeled]
 
 jobs:
   # Enforces the update of a changelog file on every pull request
@@ -13,7 +13,32 @@ jobs:
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           ref: ${{ github.event.pull_request.head.sha }}
-
       - uses: dangoslen/changelog-enforcer@v3
+        id: verify-changelog-3x
+        with:
+          skipLabels: "autocut, skip-changelog"
+          changeLogPath: 'CHANGELOG-3.0.md'
+        continue-on-error: true
+      - uses: dangoslen/changelog-enforcer@v3
+        id: verify-changelog
         with:
           skipLabels: "autocut, skip-changelog"
+          changeLogPath: 'CHANGELOG.md'
+        continue-on-error: true
+      - run: |
+          # The check was possibly skipped leading to success for both the jobs
+          if [[ ${{ steps.verify-changelog-3x.outcome }} == 'success' && ${{ steps.verify-changelog.outcome }} == 'success' ]]; then
+            exit 0
+          fi
+          
+          if [[ ${{ steps.verify-changelog-3x.outcome }} == 'failure' && ${{ steps.verify-changelog.outcome }} == 'failure' ]]; then
+            echo "error: Please ensure a changelog entry exists in CHANGELOG.md or CHANGELOG-3.0.md"
+            exit 1
+          fi
+          
+          # Concatenates the labels and checks if the string contains "backport"
+          has_backport_label=${{ contains(join(github.event.pull_request.labels.*.name, ', '), 'backport')}}
+          if [[ ${{ steps.verify-changelog.outcome }} == 'success' && $has_backport_label == false ]]; then
+            echo "error: Please make sure that the PR has a backport label associated with it when making an entry to the CHANGELOG.md file"
+            exit 1
+          fi

.github/workflows/pull-request-checks.yml

@@ -18,6 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: peternied/[email protected]
+        if: github.actor != 'dependabot[bot]'
         with:
           checklist-items: |
             New functionality includes testing.

.github/workflows/wrapper.yml

@@ -8,4 +8,4 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: gradle/wrapper-validation-action@v2
+      - uses: gradle/wrapper-validation-action@v3

CHANGELOG-3.0.md

@@ -0,0 +1,53 @@
+# CHANGELOG
+All notable changes to this project are documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). See the [CONTRIBUTING guide](./CONTRIBUTING.md#Changelog) for instructions on how to add changelog entries.
+
+## [Unreleased 3.0]
+### 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))
+- Allow to pass the list settings through environment variables (like [], ["a", "b", "c"], ...) ([#10625](https://github.com/opensearch-project/OpenSearch/pull/10625))
+- 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))
+
+### Dependencies
+
+### Changed
+- Migrate client transports to Apache HttpClient / Core 5.x ([#4459](https://github.com/opensearch-project/OpenSearch/pull/4459))
+- 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/))
+- Deprecate CamelCase `PathHierarchy` tokenizer name in favor to lowercase `path_hierarchy` ([#10894](https://github.com/opensearch-project/OpenSearch/pull/10894))
+- Breaking change: Do not request "search_pipelines" metrics by default in NodesInfoRequest ([#12497](https://github.com/opensearch-project/OpenSearch/pull/12497))
+
+### 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))
+
+### 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))
+
+### Security
+
+[Unreleased 3.0]: https://github.com/opensearch-project/OpenSearch/compare/2.x...HEAD