--- title: Amazon OpenSearch Service now supports OpenSearch... description: Amazon OpenSearch Service now supports OpenSearch 3.7, bringing several improvements. Key additions include 1-bit scalar quantization on Faiss and Lucene... canonical: https://daily.dev/posts/amazon-opensearch-service-now-supports-opensearch-version-3-7-wkqtg7wcc twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Amazon OpenSearch Service now supports OpenSearch version 3.7 | daily.dev og:description: Amazon OpenSearch Service now supports OpenSearch 3.7, bringing several improvements. Key additions include 1-bit scalar quantization on Faiss and Lucene... og:url: https://daily.dev/posts/amazon-opensearch-service-now-supports-opensearch-version-3-7-wkqtg7wcc og:image: https://api.daily.dev/og/posts/wkqTG7Wcc.png og:image:alt: Amazon OpenSearch Service now supports OpenSearch version 3.7 og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Amazon OpenSearch Service now supports OpenSearch version 3.7 **[AWS](https://daily.dev/sources/aws)** · 1 min read · 0 upvotes · 0 comments ## Summary Amazon OpenSearch Service now supports OpenSearch 3.7, bringing several improvements. Key additions include 1-bit scalar quantization on Faiss and Lucene engines to reduce vector storage and memory usage while maintaining accuracy, faster vector retrieval via doc values without reindexing, and an enhanced Search Relevance Workbench with new evaluation metrics, CSV judgment uploads, and hybrid search optimization. Query Insights gains automated query recommendations, a finished-queries cache, and the ability to export top query data to Amazon S3 for trend analysis. The update is available in all AWS Regions where Amazon OpenSearch Service is offered. ## Full article daily.dev links to this article rather than hosting it. 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