24 March 2020, Apache Lucene™ 8.5.0 available
The Lucene PMC is pleased to announce the release of Apache Lucene 8.5.0.
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
Please read CHANGES.txt for a full list of new features and changes:
Lucene 8.5.0 Release Highlights:
- XYPointField allows you to index points in flat X,Y space and efficiently find documents that fall within a bounding box, distance or arbitrary polygon
- New query builders on LatLonShape allow you to efficiently find documents with a specific relation to a point or polygon
Optimizations & Improvements
- You can now store up to 16 data dimensions in a Point field
- KoreanTokenizer supports custom dictionaries
- Binary doc values are now compressed, and term dictionaries have improved compression
- Index flushes are up to 20% faster if all docvalues updates are updating a single field to the same value
- The index of stored fields and term vectors is now stored off-heap
- Query parsers based on QueryBuilder can boost particular terms or synonyms by setting BoostAttribute values on a token stream
- Intervals queries correctly handle repeated subterms in ordered and unordered sources
Further details of changes are available in the change log available at: https://lucene.apache.org/core/8_5_0/changes/Changes.html
Please report any feedback to the mailing lists (https://lucene.apache.org/core/discussion.html)
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