6 June 2017, Apache Lucene™ 6.6.0 available The Lucene PMC is pleased to announce the release of Apache Lucene 6.6.0.

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/6_6_0/changes/Changes.html

Lucene 6.6.0 Release Highlights:

New features:

  • A concurrent SortedSet facets implementation

Optimizations:

  • spatial-extras HeatmapFacetCounter will now short-circuit it's work when Bits.MatchNoBits is passed

Improvements:

  • OfflineSorter now passes the total number of items it will write to getWriter()
  • Move dictionary for Ukrainian analyzer to external dependency
  • SortedSetDocValuesReaderState now implements Accountable so one can see how much RAM it is using
  • OfflineSorter can now run concurrently if you pass it an optional ExecutorService
  • Sorted set facets now use sparse storage when collecting hits, when appropriate

Other:

Along with numerous bug fixes.

Further details of changes are available in the change log available at: http://lucene.apache.org/core/6_6_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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