Skip to content

3.9.0

Latest
Latest

Choose a tag to compare

View all tags
@github-actions github-actions released this 29 Sep 21:54
· 52 commits to main since this release
Immutable release. Only release title and notes can be modified.
3.9.0
4ee42a9
This commit was created on GitHub.com and signed with GitHub鈥檚 verified signature.
GPG key ID: B5690EEEBB952194
Verified
Learn about vigilant mode.

Version 3.9.0 Release Notes

Compatible with OpenSearch and OpenSearch Dashboards version 3.9.0

Features

  • Add DELETE task API for removing stored completed task results (#21727)
  • Add deployment drain and finish APIs for zero-downtime node deployments (#21448)
  • Add adaptive per-action concurrency limiting module with Vegas, Gradient2, and AIMD algorithms (#22312)
  • Add virtual thread-per-task executor support to ThreadPool (#22485)
  • Add extensible payload decoder framework for pull-based ingestion (#22364)
  • Add plugin SPI for dynamic field-type inference and dynamic-template types (#22607)
  • Add pluggable PrimaryOperationPolicy to EngineConfig for cross-cluster replication (#22886)
  • Add object-store fencing token for remote store primary term validation (#22774)
  • Auto-restore remote store primaries on node loss when no valid copy survives (#22904)
  • Add FieldDomain metadata producer API for enhanced can_match shard pruning (#22483)
  • Add intra-segment search support for histogram, auto_date_histogram, and range aggregations (#22531)
  • Add MPP-style distributed join and aggregation execution for the analytics engine (#21844)

Enhancements

  • Add cluster.blocks.read.auto_release setting to prevent unconditional auto-release of user-set index read blocks (#22610)
  • Add cluster-level remote-store flush settings for uncommitted segments (#22935)
  • Restore size-based periodic flush on remote-store shards (#22865)
  • Apply index.periodic_flush_interval changes to running shards dynamically (#22991)
  • Use ordinals instead of byte values for bucket keys in multi-term aggregations (#21033)
  • Optimize bucket counting and tracking in LongKeyedBucketOrds with O(1) lookups (#22450)
  • Speed up reading history operations from Lucene via sequential stored-fields reader (#22603)
  • Use prefixQuery to speed up wildcardQuery and regexpQuery for wildcard field type (#22510)
  • Preserve constant_score through filtered aliases to maintain Lucene no-scoring fast path (#22776)
  • Promote lowest-version replica on document-replication failover to prevent stuck replicas during rolling upgrades (#22783)
  • Avoid cancellation checks on every advance() call for posting enums to reduce CPU overhead (#22856)
  • Avoid quadratic identifier scan when removing snapshots (#22968)
  • Stream translog parts instead of buffering the whole file for upload (#23015)
  • Change tiered cache default partition count to 16 for improved hit rates on high-core instances (#23032)
  • Bound Arrow native memory pools when node.native_memory.limit is unknown (#22762)
  • Lower default arrow.flight.channel.outbound_buffer_threshold from 64 MB to 512 KB (#22697)
  • Deprecate RestHighLevelClient in favor of opensearch-java client (#23008)
  • Remove Jackson 2.x dependencies from OpenSearch core (#22704)
  • Remove legacy client benchmark and noop API plugin modules (#21839)
  • Preserve routing in Translog.Delete for CDC-based replication (#22584)
  • Exempt server-injected preferences from strict weighted routing check and scope them per index (#22571)
  • Reject out-of-range WLM node threshold updates at validation time (#22649)
  • Return HTTP 400 for too_many_clauses and too_many_nested_clauses errors (#21725)
  • Refactor forPattern if-else chains to switch on FormatNames enum for O(1) dispatch (#22568)
  • Drain active streams before closing Flight channel to prevent spurious leak errors (#22642)
  • Skip stream connections to nodes without a stream address in mixed-version clusters (#22810)
  • Remove duplicate native memory limit setting from NodeDuressSettings (#22620)

Bug Fixes

  • Fix ApproximateScoreQuery.equals for query cache correctness (#22737)
  • Fix NPE on collapse with search_after sort using _score or _doc (#23029)
  • Fix NPE when creating a match-all composable index template without an inline template (#22421)
  • Fix NPE in routing table checksum when a shard has no primary (#22723)
  • Fix ClassCastException in mixed rollup and raw index avg aggregation reduce (#22658)
  • Fix parent-bucket scoping in StreamStringTermsAggregator for nested terms aggregations (#21447)
  • Fix cache entries removed before promotion being retained indefinitely (#22662)
  • Fix stale fielddata retention by invalidating exact key on reader close (#22491)
  • Use point-in-time key snapshot for fielddata cache cleanup to prevent missed entries (#22499)
  • Invalidate exact bitset filter cache keys on reader close (#22498)
  • Make ICache keys() iteration safe under concurrent mutation (#22542)
  • Fix stranded snapshot markers on publish failure with bounded retry (#22518)
  • Fix OpenSearch process not exiting when startup fails due to StartupException (#22259)
  • Bound completion suggester max_determinized_states to prevent heap exhaustion (CVE-2026-63136) (#22924)
  • Fix silent hang when REST response body cannot be serialized (#22840)
  • Fix opensearch-heap-prof reset crashing on non-numeric lg_prof_sample argument (#22970)
  • Re-register persistent task throttling keys to prevent cluster state restore failure (#22656)
  • Fix node crash on partially-consumed native stream teardown (#22754)
  • Fix virtual-thread scheduler deadlock from Flight client stream failure logging (#22743)
  • Fix constant ~5s stall in coordinator reduce teardown on limited queries (#22609)
  • Fix 500 on PPL query over alias spanning mapping-less index (#22665)
  • Fix use slice() instead of clone() for multipart uploads in RemoteDirectory to prevent AlreadyClosedException (#22705)
  • Gate internal ignore settings on remote data attributes in snapshot restore (#22570)
  • Allow read access to Kubernetes pod cgroup paths (#22846)
  • Fix HTTP connection leaks in plugin install command (#22507)
  • Fix ambiguous Node type reference in build.gradle (#22514)
  • Revert default SSE type to bucket_default to fix S3-compatible storage uploads (#23041)

Maintenance

  • Bump Apache HttpCore5 to 5.4.3 and Apache HttpClient5 to 5.6.4 to fix TLS latency regression (#22731)
  • Update AWS SDK to 2.54.2 to fix S3 upload failures (#22816)
  • Upgrade Lucene to 10.5.1 (#22898)
  • Update bundled JDK to 25.0.4.1+1 (#22808)
  • Update Gradle to 9.7.1 (#22719)
  • Update log4j to 2.25.5 (CVE-2026-49844) (#22923)
  • Bump Jackson to 2.22.2 (#22847)
  • Update OpenTelemetry to 1.66.0 and OpenTelemetry Semconv to 1.44.0 (#23033)
  • Update Project Reactor to 3.8.7 and Reactor Netty to 1.3.7 (#22848)
  • Update SnakeYaml to 2.7 and SnakeYaml Engine to 3.1.1 (#23006)
  • Bump Apache RAT dependency from 0.15 to 0.18 (#22770)
  • Bump com.squareup.okio:okio from 3.16.4 to 3.17.0 (#21617)
  • Bump com.sun.xml.bind:jaxb-impl from 4.0.7 to 4.0.8 (#21614)
  • Bump org.apache.commons:commons-configuration2 from 2.15.0 to 2.15.1 (#21947)
  • Bump org.carrot2:morfologik-stemming from 2.1.9 to 2.2.0 (#22156)
  • Bump org.jsoup:jsoup from 1.22.2 to 1.23.1 (#22641)
  • Bump org.jspecify:jspecify from 1.0.0 to 1.0.1 (#22640)
  • Bump org.jline:jline from 4.0.14 to 4.4.2 (#23001)
  • Bump com.google.jimfs:jimfs from 1.3.1 to 1.3.2 (#22866)
  • Bump com.github.spotbugs:spotbugs-annotations from 4.10.1 to 4.10.4 (#22158, #23000)
  • Bump com.diffplug.spotless to 8.10.1 (#22874)
  • Remove obsolete OS packaging tests (#22879)
  • Replace deprecated AccessController in core libraries and plugins (#22503, #22988)
Assets 3
Loading