Title: Apache Lucene™ 8.9.0 available category: core/news URL: save_as:

The Lucene PMC is pleased to announce the release of Apache Lucene 8.9.0.

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 full-text search, especially cross-platform.

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 8.9.0 Release Highlights:

• Compression was added to SortedSet DocValues, which allowed to significantly reduce their size on disk.
• BM25FQuery was extended to handle similarities beyond BM25Similarity. It was renamed to CombinedFieldQuery to reflect its more general scope.
• A new PatternTypingFilter was added to allow setting a type attribute on tokens based on a configured set of regular expressions.
• An option was added to supply a custom leaf sorter for IndexWriter and DirectoryReader, which allows to speed up sort queries with a provided sort criteria.

Please read CHANGES.txt for a full list of new features and changes:

https://lucene.apache.org/core/8_9_0/changes/Changes.html