Amazon OpenSearch Service now supports OpenSearch version 3.7

Amazon OpenSearch Service now supports OpenSearch version 3.7, featuring enhancements to vector search, search relevance, and query monitoring.

• 1-bit scalar quantization compresses vectors on Faiss and Lucene engines, reducing storage and memory requirements
• Retrieve vectors faster using doc values without requiring reindexing
• Search Relevance Workbench adds evaluation metrics, CSV judgment uploads, and hybrid search optimization
• Query Insights provides automated recommendations, finished-queries cache, and S3 export for query analysis
• Available across all AWS Regions where Amazon OpenSearch Service operates

OpenSearch 3.7 improves vector search efficiency and provides better tools for measuring and optimizing search quality and query performance.