29 July 2022 - Apache Lucene™ 9.3.0 available The Lucene PMC is pleased to announce the release of Apache Lucene 9.3.0.
Apache Lucene is a high-performance, full-featured search engine library written entirely in Java. It is a technology suitable for nearly any application that requires structured search, full-text search, faceting, nearest-neighbor search across high-dimensionality vectors, spell correction or query suggestions. This release contains numerous bug fixes, optimizations, and improvements, some of which are highlighted below. The release is available for immediate download at: https://lucene.apache.org/core/downloads.html Lucene 9.3.0 Release Highlights: • Merge on full flush is enabled now by default with a timeout of 500ms. • Add getAllChildren functionality to facets. • Added facetsets module for high dimensional (hyper-rectangle) faceting. • Top-level two-clause disjunctions sorted by score now use the block-max MAXSCORE algorithm. • When running KnnVectorQuery with a filter, reuse the cached filter bit set. Please read CHANGES.txt for a full list of new features and changes: https://lucene.apache.org/core/9_3_0/changes/Changes.html Note: The Apache Software Foundation uses an extensive mirroring network for distributing releases. It is possible that the mirror you are using may not have replicated the release yet. If that is the case, please try another mirror. This also applies to Maven access.