27 Feb 10 Lucene 2.9.2 and 3.0.1 released
Lucene 2.9.2 and 3.0.1 versions have been released. Both are mainly bug fix versions from the previous ones.
The main difference between 2 and 3 versions is that version 3 has no support for java 1.4 and has a more clean API as deprecated stuff has been removed. This means if you want to upgrade your Lucene JARs to v.3 you must use at least Java 1.5 and have no deprecation warnings in you code.
More details of both releases can be found in the official announcement:
Hello Lucene users,
On behalf of the Lucene development community I would like to announce the release of Lucene Java versions 3.0.1 and 2.9.2:
Both releases fix bugs in the previous versions:
- 2.9.2 is a bugfix release for the Lucene Java 2.x series, based on Java 1.4
- 3.0.1 has the same bug fix level but is for the Lucene Java 3.x series, based on Java 5.New users of Lucene are advised to use version 3.0.1 for new developments, because it has a clean, type-safe API.
Important improvements in these releases include:
- An increased maximum number of unique terms in each index segment.
- Fixed experimental CustomScoreQuery to respect per-segment search. This introduced an API change!
- Important fixes to IndexWriter: a commit() thread-safety issue, lost document deletes in near real-time indexing.
- Bugfixes for Contrib’s Analyzers package.
- Restoration of some public methods that were lost during deprecation removal.
- The new Attribute-based TokenStream API now works correctly with different class loaders.Both releases are fully compatible with the corresponding previous versions. We strongly recommend upgrading to 2.9.2 if you are using 2.9.1 or 2.9.0; and to 3.0.1 if you are using 3.0.0.
See core changes at
http://lucene.apache.org/java/3_0_1/changes/Changes.html
http://lucene.apache.org/java/2_9_2/changes/Changes.htmland contrib changes at
http://lucene.apache.org/java/3_0_1/changes/Contrib-Changes.html
http://lucene.apache.org/java/2_9_2/changes/Contrib-Changes.htmlBinary 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/
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Tags: Java, Lucene, Open source
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