21 December 2017, Apache Lucene™ 7.2.0 available

The Lucene PMC is pleased to announce the release of Apache Lucene 7.2.0.

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:

http://lucene.apache.org/core/mirrors-core-latest-redir.html Please read CHANGES.txt for a full list of new features and changes:

https://lucene.apache.org/core/7_2_0/changes/Changes.html

Lucene 7.2.0 Release Highlights:

  • Specific query implementations can now opt out of caching.
  • TopFieldDocCollector can now early terminate collection of matches when the index is sorted and the total hit count is not requested.
  • IndexWriter#flushNextBuffer gives more fine-grained control over the memory usage of IndexWriter.
  • Fixed document accounting in IndexWriter.
  • Query scores can be exposed in a ValuesSource using DoubleValuesSource.fromQuery().

Further details of changes are available in the change log available at: http://lucene.apache.org/core/7_2_0/changes/Changes.html

Please report any feedback to the mailing lists (http://lucene.apache.org/core/discussion.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.

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