24 September 2018, Apache Lucene™ 7.5.0 available
The Lucene PMC is pleased to announce the release of Apache Lucene 7.5.0.
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: http://lucene.apache.org/core/downloads.html Please read CHANGES.txt for a full list of new features and changes:
Lucene 7.5.0 Release Highlights:
IndexWriter#deleteDocs(Query... query) applies deletes to wrong documents if the index is sorted.
Changes in Runtime behavior
TieredMergePolicy now respects maxSegmentSizeMB by default when executing findForcedMerges and findForcedDeletesMerges.
- A new points based Shape Indexing and Searching that decomposes shapes into a triangular mesh and indexes individual triangles as a 6 dimension point.
A new ByteBuffer based Directory implementation that aims to replace the deprecated RAMDirectory.
The UnifiedHighlighter can now use the MatchesIterator API to highlight any query more accurately.
TopFieldComparator can now stop comparing documents if the index is sorted, even if hits still need to be visited to compute the hit count.
TieredMergePolicy can control how aggressively deletes should be reclaimed with the new deletesPctAllowed setting.
Further details of changes are available in the change log available at: http://lucene.apache.org/core/7_5_0/changes/Changes.html
Please report any feedback to the mailing lists (http://lucene.apache.org/core/discussion.html)
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