The Lucene PMC is pleased to announce the release of Apache Lucene 9.12.0.
Apache Lucene is a high-performance, full-featured search engine library
written entirely in Java. It is a technology suitable for nearly any
application that requires structured search, full-text search, faceting,
nearest-neighbor search across high-dimensionality vectors, spell
correction or query suggestions.
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 9.12.0 Release Highlights:
Security Fixes
• Deserialization of Untrusted Data vulnerability in Apache Lucene
Replicator - CVE-2024-45772
New Features
• Improve intra-merge parallelism for many value types.
• Add support JDK 23 to the Panama Vectorization Provider.
Improvements
• Add Intervals.regexp and Intervals.range methods to produce
IntervalsSource for regexp and range queries.
• Remove support for writing 8 bit scalar vector quantization. 4 and
7 bit quantization are still supported
Optimizations
• Inline postings skip data to improve performance of queries that
need skipping such as conjunctions.
• Optimizations to the decoding logic of blocks of postings.
• Avoid performance degradation with closing shared mapped segment data
... plus a multitude of helpful bug fixes!
Please read CHANGES.txt for a full list of new features and changes:
https://lucene.apache.org/core/9_12_0/changes/Changes.html
-Chris.
