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OpenSearch 3.3.2 and OpenSearch Dashboards 3.3.0 Release Notes

Release Highlights

Includes maintenance changes and bug fixes for the OpenSearch core engine and ML Commons, Neural Search, Skills, k-NN and Security plugins.

Release Details

OpenSearch 3.3.2 includes the following bug fix updates.

OpenSearch Release Notes.

FEATURES

OpenSearch ML Commons

  • Nova mme support (#4368)

ENHANCEMENTS

OpenSearch ML Commons

  • Support MCP connector in agent update API (#4352)
  • Add refresh policy; add checkpoint id field (#4305)

OpenSearch Neural Search

  • [Agentic Search] Add conversation search support with agentic search (#1626)
  • [Agentic Search] Extract JSON from Agent Response (#1631)
  • [Agentic Search] Extract agent summary based on models (#1633)

BUG FIXES

OpenSearch Core Engine

  • Fix issue with updating core with a patch number other than 0 (#19377)
  • Fix IndexOutOfBoundsException when running include/exclude on non-existent prefix in terms aggregations (#19637)
  • Add S3Repository.LEGACY_MD5_CHECKSUM_CALCULATION to list of repository-s3 settings (#19789)

OpenSearch k-NN

  • Do not apply memory optimized search for old indices. (#2918)

OpenSearch ML Commons

  • [Agentic Search] Add extract JSON processor in Query Planning Tool (#4356)
  • Add name validation to index prefix (#4332)
  • Fix CVE-2025-58057 (#4338)
  • Fix unsupported operation exception in execute tool API (#4325)
  • Fixing regex bypass issue (#4336)
  • Fix when return_history is true (#4310)
  • Use filtered output in agent tool response streaming (#4335)
  • Combine json chunks from requests (#4317)

OpenSearch Remote Metadata SDK

  • Upgrading netty codec version to match with OpenSearch Core Engine (#273)

OpenSearch Security

  • Create a WildcardMatcher.NONE when creating a WildcardMatcher with an empty string (#5694)
  • Add security provider earlier in bootstrap process (#5749)

OpenSearch Skills

  • Fix regex bypass issue (#656)

MAINTENANCE

OpenSearch Core Engine

  • Bump ch.qos.logback modules from 1.5.18 to 1.5.20 in HDFS test fixture (#19764)
  • Bump org.bouncycastle:bc-fips from 2.1.1 to 2.1.2 (#19817)