[ANNOUNCE] Apache Lucene 10.5.0 released

Alan Woodward <[email protected]> Fri, 26 Jun 2026 09:53:11 +0100
Newsgroups gmane.comp.jakarta.lucene.devel
Message-ID <CAFv9U3n84e1h6cZTvFDmeKaXDmbdOekzg52abigBDRR=+f2Onw__2901.23888278089$1782464130$gmane$org@mail.gmail.com>
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The Lucene PMC is pleased to announce the release of Apache Lucene 10.5.0.

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 10.5.0 Release Highlights:

 * A new experimental columnar batch indexing API
 * Improvements to bulk scoring and filtering of documents allowing much
greater use of SIMD instructions and vectorisation
 * Extension of concurrent searches to many more Collector types, notably
Grouping searches
 * New queries allowing hybrid searches to use Bayesian probabilities to
combine scores from different index types (eg BM25 and vector scores)

Please read CHANGES.txt for a full list of new features and changes:

  <https://lucene.apache.org/core/10_5_0/changes/Changes.html>

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<div dir=3D"ltr">The Lucene PMC is pleased to announce the release of Apach=
e Lucene 10.5.0.<br><br>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 sear=
ch, faceting, nearest-neighbor search across high-dimensionality vectors, s=
pell correction or query suggestions.<br><br>This release contains numerous=
 bug fixes, optimizations, and improvements, some of which are highlighted =
below. The release is available for immediate download at:<br><br>=C2=A0 &l=
t;<a href=3D"https://lucene.apache.org/core/downloads.html">https://lucene.=
apache.org/core/downloads.html</a>&gt;<br><br>### Lucene 10.5.0 Release Hig=
hlights:<br><br>=C2=A0* A new experimental columnar batch indexing API<br>=
=C2=A0* Improvements to bulk scoring and filtering of documents allowing mu=
ch greater use of SIMD instructions and vectorisation<br>=C2=A0* Extension =
of concurrent searches to many more Collector types, notably Grouping searc=
hes<br>=C2=A0* New queries allowing hybrid searches to use Bayesian probabi=
lities to combine scores from different index types (eg BM25 and vector sco=
res)<br><br>Please read CHANGES.txt for a full list of new features and cha=
nges:<br><br>=C2=A0 &lt;<a href=3D"https://lucene.apache.org/core/10_5_0/ch=
anges/Changes.html">https://lucene.apache.org/core/10_5_0/changes/Changes.h=
tml</a>&gt;</div>

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