The Apache Software Foundation

Release 2.9.1 of Apache Lucene java is now available.

This release fixes bugs from 2.9.0, including one serious bug whereby BooleanQuery could silently fail to retrieve certain matching documents.

There are also some minor API changes, including a Version parameter added to QueryParser and contrib Analyzers, so that version dependent defaults are consistent across classes, as well as un-deprecating of certain methods (we were too zealous in a few cases!).

Otherwise the changes are all bug fixes and documentation improvements.

This release is fully compatible with 2.9.0.  We strongly recommend upgrading to 2.9.1 if you are using 2.9.0.  Furthermore, because some additional APIs were deprecated in 2.9.1, to ensure a clean ("JAR drop in") upgrade to 3.0 you'll need to verify your code compiles against 2.9.1 without deprecation warnings.

See core changes at
http://lucene.apache.org/java/2_9_1/changes/Changes.html and contrib
changes at
http://lucene.apache.org/java/2_9_1/changes/Contrib-Changes.html.

Binary and source distributions are available at
http://www.apache.org/dyn/closer.cgi/lucene/java/

Lucene artifacts are also available in the Maven2 repository at
http://repo1.maven.org/maven2/org/apache/lucene/

Hello Lucene users,

On behalf of the Lucene dev community (a growing community far larger than just the committers) I would like to announce the release of Lucene 2.9.

While we generally try and maintain full backwards compatibility between major versions, Lucene 2.9 has a variety of breaks that are spelled out in the 'Changes in backwards compatibility policy' section
of CHANGES.txt.

We recommend that you recompile your application with Lucene 2.9 rather than attempting to “drop” it in. This will alert you to any issues you may have to fix if you are affected by one of the backward
compatibility breaks. As always, its a really good idea to thoroughly read CHANGES.txt before upgrading.

Lucene 2.9 comes with a bevy of new features, including:

 * Per segment searching and caching (can lead to much faster reopen among other things)

 * Near real-time search capabilities added to IndexWriter

 * New Query types

 * Smarter, more scalable multi-term queries (wildcard, range, etc)

 * A freshly optimized Collector/Scorer API

 * Improved Unicode support and the addition of Collation contrib

 * A new Attribute based TokenStream API

 * A new QueryParser framework in contrib with a core QueryParser replacement impl included.

 * Scoring is now optional when sorting by Field, or using a custom Collector, gaining sizable performance when scores are not required.

 * New analyzers (PersianAnalyzer, ArabicAnalyzer, SmartChineseAnalyzer)

 * New fast-vector-highlighter for large documents

 * Lucene now includes high-performance handling of numeric fields.
   Such fields are indexed with a trie structure, enabling simple to use and much faster numeric range searching without having to externally pre-process numeric values into textual values.

 ---

And many, many more features, bug fixes, optimizations, and various improvements. You can find the full list of changes here:

http://lucene.apache.org/java/2_9_0/changes/Changes.html

Many changes have also occurred in Lucene's Contrib area:

http://lucene.apache.org/java/2_9_0/changes/Contrib-Changes.html

Binary and source distributions are available at
http://www.apache.org/dyn/closer.cgi/lucene/java/

Lucene artifacts are also available in the Maven2 repository at
http://repo1.maven.org/maven2/org/apache/lucene/

The Next Release:

The next release will be Lucene 3.0. This should come along shortly, and will remove all of the deprecated code in Lucene 2.9. Lucene 3.0 will also be the first release to move from Java 1.4 to Java 1.5 as a requirement.

Thanks,

Mark Miller

The Apache Lucene project is pleased to announce the release of Apache Tika 0.4. The release contents have been pushed out to the main Apache release site and the m2 ibiblio sync, so the releases should be available as soon as the mirrors get the syncs.

Apache Tika, a subproject of Apache Lucene, is a toolkit for detecting and extracting metadata and structured text content from various documents using existing parser libraries.

Apache Tika 0.4 contains a number of improvements and bug fixes. Details can be found in the changes file:

http://www.apache.org/dist/lucene/tika/CHANGES-0.4.txt

Apache Tika is available in source form from the following download page:
http://www.apache.org/dyn/closer.cgi/lucene/tika/apache-tika-0.4-src.tar.gz

Apache Tika is also available in binary form or for use using Maven 2 from the Central Maven Repositories:
http://repo1.maven.org/maven2/org/apache/tika/
http://mirrors.ibiblio.org/pub/mirrors/maven2/org/apache/tika/

In the initial 48 hours, the release may not be available on all mirrors.
When downloading from a mirror site, please remember to verify the downloads using signatures found on the Apache site:
http://www.apache.org/dist/lucene/tika/KEYS

For more information on Apache Tika, visit the project home page:
http://lucene.apache.org/tika

-- Chris Mattmann (on behalf of the Apache Lucene community)

Release 2.4.1 of Lucene is now available.

This release fixes bugs from 2.4.0, including one data loss bug where in certain situations binary fields would be truncated to 0 bytes.
2.4.1 has no new features, nor API changes or changes to file formats, so it's fully compatible with 2.4.0.

See changes at http://lucene.apache.org/java/2_4_1/changes/Changes.html

Binary and source distributions are available at
http://www.apache.org/dyn/closer.cgi/lucene/java/

Lucene artifacts are also available in the Maven2 repository at
http://repo1.maven.org/maven2/org/apache/lucene/