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From Apache Wiki <>
Subject [Lucene-java Wiki] Update of "ReleaseNote40beta" by RobertMuir
Date Wed, 08 Aug 2012 18:41:08 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Lucene-java Wiki" for change notification.

The "ReleaseNote40beta" page has been changed by RobertMuir:

add 4.0-beta placeholder

New page:
MMM???? 2012, Apache Luceneā€š 4.0-beta available
The Lucene PMC is pleased to announce the release of Apache Lucene 4.0-beta

Apache Lucene is a high-performance, full-featured text search engine
library written entirely in Java. It is a technology suitable for nearly
any application that requires full-text search, especially cross-platform.

This release contains numerous bug fixes, optimizations, and
improvements, some of which are highlighted below.  The release
is available for immediate download at:

See the CHANGES.txt file included with the release for a full list of

Lucene 4.0-beta Release Highlights:


Please read CHANGES.txt and MIGRATE.txt for a full list of new features and notes on upgrading.

Particularly, the new apis are not compatible with previous version of Lucene, however, file

format backwards compatibility is provided for indexes from the 3.0 series and the 4.0-alpha

This is an alpha release for early adopters. The guarantee for this alpha release is that
the index 
format will be the 4.0 index format, supported through the 5.x series of Apache Lucene, unless
is a critical bug (e.g. that would cause index corruption) that would prevent this.

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