Title: Apache Lucene™ 8.10.0 available category: core/news URL: save_as:

The Lucene PMC is pleased to announce the release of Apache Lucene 8.10.0.

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 8.10.0 Release Highlights:

New features

• Multi-valued fields are now supported in numeric range facet counting
• Added new analyzer for Telugu
• Near-real-time readers opened from an IndexCommit can now sort their leaves
• SimpleText codec now implements skipping for its postings lists

Optimizations

• Performance improvements for faceting, including a new protected API to control which fields are counted for drill-down during drill sideways, and optimized drill sideways iterating
• RegexpQuery's detection of adversarial (ReDoS) regular expressions is improved, catching exotic cases that it missed before, and throwing TooComplexToDeterminizeException
• Speedup for computing the leading prefix and trailing suffix from an Automaton, and for managing powersets during determinize
• Speedups for stored fields retrieval with the default codec (BEST_SPEED)
• IndexWriter uses less RAM when buffering documents, especially in the case of many unique fields
• forceMerge will now merge any number of segments at once, making it much faster in many cases
• Compression improvements for docvalues storage

... plus a number of exciting bug fixes!

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

https://lucene.apache.org/core/8_10_0/changes/Changes.html