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07 December 2021, Apache Lucene™ 9.0 available

The Lucene PMC is pleased to announce the release of Apache Lucene 9.0.

Apache Lucene is a high-performance, full-featured text search engine library written entirely in Java. It is a technology suitable for nearly any application that requires structured search, full-text search, especially cross-platform, faceting, nearest-neighbor search across high-dimensionality vectors, spell correction or query suggestions.

This release contains numerous features, optimizations, and improvements, some of which are highlighted below. The release is available for immediate download at:

httphttps://lucene.apache.org/core/mirrors-core-latest-redirdownloads.html

Lucene 9.0 Release Highlights

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Further details of changes are available in the change log available at: http://lucene.apache.org/core/9_0_0/changes/Changes.html and the migration guide available at https://lucene.apache.org/core/9_0_0/MIGRATE.html.

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Note: The Apache Software Foundation now uses a content distribution network (CDN) for distributing releases. We think it's unlikely, but the system is new, and it is possible that some glitch may cause the mirror you are using to lack the new release. If that is the case, please try another mirror. This also applies to Maven access.