docs: add Lucene On Faiss report for v3.0.0#351
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This was referenced Apr 10, 2026
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Summary
This PR adds documentation for the Lucene On Faiss (Memory Optimized Search) feature introduced in OpenSearch v3.0.0.
Feature Overview
Lucene-on-Faiss is a hybrid vector search approach that enables OpenSearch to perform vector searches on FAISS HNSW indexes without loading the entire index into memory. This addresses a fundamental limitation of FAISS and allows vector search operations in memory-constrained environments.
Key Changes
docs/releases/v3.0.0/features/k-nn/lucene-on-faiss.mddocs/features/k-nn/lucene-on-faiss.mdRelated Issue
Closes #151
References