Release history
OpenSearch releases
Open source distributed and RESTful search engine.
All releases
12 shown
3.6.0
New feature
Notable features
- Pull-based ingestion marked as public API
- Bitmap64 query support
- Index warmer for replica shards
3.5.0
Breaking risk
Notable features
- HTTP/3 (server side) support
- Circuit breaker support for gRPC transport
- Index-level encryption for snapshots and remote-store
3.4.0
Breaking risk
Notable features
- Context-aware segment grouping support
- Dynamic consumer configuration for pull-based ingestion
- Hybrid Cardinality collector optimization
2.19.4
Breaking risk
Notable features
- search.query.max_query_string_length cluster setting
3.3.2
Bug fix
Bug fixes for aggregation casting, timestamp upgrades, and repository settings.
3.3.0
Breaking risk
Notable features
- Rule-based auto-tagging schema with security attributes
- Field collapsing with search_after support
- Streaming aggregations including cardinality
3.2.0
Breaking risk
Notable features
- Enhanced Terms lookup with query clause support
- Hierarchical and ACL-aware routing processors
- Warm Indices Write Block on Flood Watermark
3.1.0
Breaking risk
Breaking changes
- Pull-based ingestion consumer reset Resume API breaking changes for experimental feature
Security fixes
- CVE-2025-27820
Notable features
- Rule-based auto-tagging CRUD APIs
- Derived source feature integration
- Auto Force Merge Manager