Version history

OpenSearch versionRelease highlightsRelease date
1.2.0Adds observability, new attribution ratio API for Anomaly Detection, shard-level indexing back-pressure, new “match” query type for SQL and PPL, support for Faiss libraries in k-NN, and custom Dashboards branding.23 November 2021
1.1.0Adds cross-cluster replication, security for Index Management, bucket-level alerting, a CLI to help with upgrading from Elasticsearch OSS to OpenSearch, and enhancements to high cardinality data in the anomaly detection plugin.5 October 2021
1.0.1Bug fixes.1 September 2021
1.0.0General availability release. Adds compatibility setting for clients that require a version check before connecting.12 July 2021
1.0.0-rc1First release candidate.7 June 2021
1.0.0-beta1Initial beta release. Refactors plugins to work with OpenSearch.13 May 2021