Apache News Online

12 October 2008 - Apache Lucene (JAVA) 2.4.0 released

The Apache Lucene Project has released the version 2.4.0 of Lucene JAVA. With 2.4.0 we have relaxed the backwards compatibility policy of the Fieldable interface: we now allow changes on a case by case basis. This means any custom classes that implement Fieldable will need to be updated. This was done to accommodate the new omitTf() method (to do pure boolean searching).

The detailed changes are here:

http://lucene.apache.org/java/2_4_0/changes/Changes.html

Lucene 2.4.0 includes index format changes that are not readable by older versions of Lucene. Lucene 2.4.0 can both read and update older Lucene indexes. Adding to an index with an older format will cause it to be converted to the newer format.

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/

NEXT RELEASE

The next release will be 2.9. After that will be 3.0, which will remove all deprecated APIs from 2.9 and will be the first release of Lucene to require JRE 1.5. The timing on these two releases is not yet known.

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-- The Apache Lucene Project