The Lucene PMC is pleased to announce the release of Apache Lucene 9.4.2 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 on high-dimensionality vectors, spell correction or query suggestions.
This patch release contains an important fix for a bug affecting version 9.4.1. The release is available for immediate download at: https://lucene.apache.org/core/downloads.html Lucene 9.4.2 Release Highlights Bug fixes - Fixed integer overflow when opening segments containing more than ~16M KNN vectors. - Fixed cost computation of BitSets created via DocIdSetBuilder, such as for multi-term queries. This may improve performance of multi-term queries. Enhancements - CheckIndex now verifies the consistency of KNN vectors more thoroughly. Further details of changes are available in the change log available at: https://lucene.apache.org/core/9_4_2/changes/Changes.html. Please report any feedback to the mailing lists ( http://lucene.apache.org/core/discussion.html) Note: The Apache Software Foundation now uses a content distribution network (CDN) for distributing releases. -- Adrien
