9.12.0

Security Fixes

• Deserialization of Untrusted Data vulnerability in Apache Lucene Replicator - CVE-2024-45772

New Features

• Improve intra-merge parallelism for many value types. (Ben Trent)
• Add support JDK 23 to the Panama Vectorization Provider. (Chris Hegarty)

Improvements

• Add Intervals.regexp and Intervals.range methods to produce IntervalsSource for regexp and range queries. (Mayya Sharipova)
• Remove support for writing 8 bit scalar vector quantization. 4 and 7 bit quantization are still supported (Michael McCandless )

Optimizations

• Inline postings skip data to improve performance of queries that need skipping such as conjunctions. (Adrien Grand)
• Optimizations to the decoding logic of blocks of postings. (Adrien Grand, Uwe Schindler, Greg Miller)
• Avoid performance degradation with closing shared mapped segment data (Chris Hegarty, Michael Gibney, Uwe Schindler)

... plus a multitude of helpful bug fixes!