[ANNOUNCE] Apache Lucene 9.12.2 released

Chris Hegarty <[email protected]> Fri, 20 Jun 2025 17:24:29 +0100
Newsgroups gmane.comp.jakarta.lucene.user,gmane.comp.java.activemq.devel
Message-ID <[email protected]>
The Lucene PMC is pleased to announce the release of Apache Lucene 9.12.2.

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 patch release contains bug fixes that are highlighted below. The
release is available for immediate download at:

https://lucene.apache.org/core/downloads.html

Lucene 9.12.2 Release Highlights

Bug fixes
* Reduce NeighborArray on-heap memory during HNSW graph building
* Fix IndexSortSortedNumericDocValuesRangeQuery for int sort
* ValueSource.fromDoubleValuesSource(dvs).getSortField() would throw errors when used if the DoubleValuesSource needed scores
 * Disable connectedComponents logic in HNSW graph building.

Further details of changes are available in the change log available at:
http://lucene.apache.org/core/9_12_2/changes/Changes.html. 

-Chris.