Apache Lucene 9.4

It is a pleasure to inform you that a new version of the Apache Lucene library has been released. It is the next release from the 9.x branch – Lucene 9.4.

Some of the changes included in the Apache Lucene 9.4:

  • FacetSets can now be filtered using a Query by using MatchingFacetSetCounts.
  • Support for Java 19 foreign memory access was added – when the –enable-preview flag will be passed to your Java application Lucene will be able to use the new API with MMapDirectory.
  • KnnVector fields can be stored with 8-bit precision now saving storage and improving query latency slightly.

The full list of changes can be found at: https://lucene.apache.org/core/9_4_0/changes/Changes.html.

Apache Lucene 9.4 can be downloaded from https://dlcdn.apache.org/lucene/java/.

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