- Added support for OpenSearch 3.7 on Amazon OpenSearch Service, delivering vector search performance improvements, 1‑bit scalar quantization, and doc‑values‑based vector retrieval without reindexing.
- Introduced Search Relevance Workbench enhancements (new metrics, CSV judgment uploads, hybrid search optimization) and Query Insights capabilities (automated query recommendations, finished‑queries cache, export to S3).
- Available in all AWS regions; upgrade guidance provided in the updated documentation.
Amazon OpenSearch Service now supports OpenSearch version 3.7
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