The Lucene PMC is pleased to announce the release of Apache Lucene 9.10.
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 on high-dimensionality vectors, spell correction or
query suggestions.
This release contains numerous features, 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 9.10 Release Highlights
New Features
* Support for similarity-based vector searches, ie. finding all nearest
neighbors whose similarity is greater than a configured threshold from a
query vector. See [Byte|Float]VectorSimilarityQuery.
* Index sorting is now compatible with block joins. See
IndexWriterConfig#setParentField.
* MMapDirectory now takes advantage of the now finalized JDK foreign
memory API internally when running on Java 22 (or later). This was only
supported with Java 19 to 21 until now.
* SIMD vectorization now takes advantage of JDK vector incubator on Java
22. This was only supported with Java 20 or 21 until now.
Optimizations
* Tail postings are now encoded using group-varint. This yielded speedups
on queries that match lots of terms that have short postings lists in
Lucene's nightly benchmarks.
* Range queries on points now exit earlier when evaluating a segment that
has no matches. This will improve performance when intersected with other
queries that have a high up-front cost such as multi-term queries.
* BooleanQueries that mix SHOULD and FILTER clauses now propagate minimum
competitive scores to the SHOULD clauses, yielding significant speedups for
top-k queries sorted by descending score.
* IndexSearcher#count has been optimized on pure disjunctions of two term
queries.
... plus a multitude of helpful bug fixes!
Further details of changes are available in the change log available at:
http://lucene.apache.org/core/9_10_0/changes/Changes.html.
Please report any feedback to the mailing lists (
http://lucene.apache.org/core/discussion.html)
Note: The Apache Software Foundation uses an extensive mirroring network
for distributing releases. It is possible that the mirror you are using may
not have replicated the release yet. If that is the case, please try
another mirror. This also applies to Maven access.
--
Adrien
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 on high-dimensionality vectors, spell correction or
query suggestions.
This release contains numerous features, 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 9.10 Release Highlights
New Features
* Support for similarity-based vector searches, ie. finding all nearest
neighbors whose similarity is greater than a configured threshold from a
query vector. See [Byte|Float]VectorSimilarityQuery.
* Index sorting is now compatible with block joins. See
IndexWriterConfig#setParentField.
* MMapDirectory now takes advantage of the now finalized JDK foreign
memory API internally when running on Java 22 (or later). This was only
supported with Java 19 to 21 until now.
* SIMD vectorization now takes advantage of JDK vector incubator on Java
22. This was only supported with Java 20 or 21 until now.
Optimizations
* Tail postings are now encoded using group-varint. This yielded speedups
on queries that match lots of terms that have short postings lists in
Lucene's nightly benchmarks.
* Range queries on points now exit earlier when evaluating a segment that
has no matches. This will improve performance when intersected with other
queries that have a high up-front cost such as multi-term queries.
* BooleanQueries that mix SHOULD and FILTER clauses now propagate minimum
competitive scores to the SHOULD clauses, yielding significant speedups for
top-k queries sorted by descending score.
* IndexSearcher#count has been optimized on pure disjunctions of two term
queries.
... plus a multitude of helpful bug fixes!
Further details of changes are available in the change log available at:
http://lucene.apache.org/core/9_10_0/changes/Changes.html.
Please report any feedback to the mailing lists (
http://lucene.apache.org/core/discussion.html)
Note: The Apache Software Foundation uses an extensive mirroring network
for distributing releases. It is possible that the mirror you are using may
not have replicated the release yet. If that is the case, please try
another mirror. This also applies to Maven access.
--
Adrien