
    Amazon OpenSearch Service now supports version 2.19, featuring enhanced vector search capabilities, improved observability with query insights dashboards, and advanced anomaly detection functionalities.


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<p>
Amazon OpenSearch Service has released version 2.19 with significant improvements in Vector Search, Observability, and OpenSearch Dashboards.
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<ul>
<li>Vector Search enhancements include:
<ul>
<li>Faiss engine supports AVX512 SIMD instructions</li>
<li>ML inference search response processor for advanced ranking</li>
<li>Lucene binary vectors support</li>
<li>Hybrid search with pagination and rank fusion</li>
</ul>
</li>
<li>Observability improvements:
<ul>
<li>Query insights dashboards for monitoring top queries</li>
<li>Enhanced anomaly detection with multiple criteria</li>
<li>Dedicated index for improved anomaly result performance</li>
</ul>
</li>
<li>Added template query functionality for more flexible search operations</li>
</ul>
<p>
The update is now available in all AWS Regions where Amazon OpenSearch Service is supported.
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