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<h1>
Apache Lucene - Overview
</h1>
<div id="minitoc-area">
<ul class="minitoc">
<li>
<a href="#Apache Lucene">Apache Lucene</a>
</li>
<li>
<a href="#Lucene News">Lucene News</a>
<ul class="minitoc">
<li>
<a href="#26+August+2007+-+Lucene+at+ApacheCon+Atlanta">26 August 2007 - Lucene at ApacheCon Atlanta</a>
</li>
<li>
<a href="#19+June+2007+-+Release+2.2+available">19 June 2007 - Release 2.2 available</a>
</li>
<li>
<a href="#18+February+2007+-+Lucene+at+ApacheCon+Europe">18 February 2007 - Lucene at ApacheCon Europe</a>
</li>
<li>
<a href="#17+February+2007+-+Release+2.1+available">17 February 2007 - Release 2.1 available</a>
</li>
<li>
<a href="#3+January+2007+-+Nightly+Source+builds+available">3 January 2007 - Nightly Source builds available</a>
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<a name="N1000C"></a><a name="Apache Lucene"></a>
<h2 class="boxed">Apache Lucene</h2>
<div class="section">
<p>
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.
</p>
<p>
Apache Lucene is an open source project available for
<a href="http://www.apache.org/dyn/closer.cgi/lucene/java/">free download</a>.
Please use the links on the left to access Lucene.
</p>
</div>
<a name="N1001D"></a><a name="Lucene News"></a>
<h2 class="boxed">Lucene News</h2>
<div class="section">
<a name="N10023"></a><a name="26+August+2007+-+Lucene+at+ApacheCon+Atlanta"></a>
<h3 class="boxed">26 August 2007 - Lucene at ApacheCon Atlanta</h3>
<p>
<a href="http://www.us.apachecon.com"><img alt="ApacheCon US logo" src="http://www.apache.org/ads/ApacheCon/2007-usa-125x125.png"></a>
Lucene will once again be well represented at ApacheCon USA in Atlanta this November 12-16, 2007.
</p>
<p>The following talks and trainings are scheduled for this year's conference:
<ul>
<li>November 12: <a href="http://us.apachecon.com/us2007/program/talk/1859">Lucene Boot Camp</a> by Grant Ingersoll. An all-day training focusing on getting started with Lucene.</li>
<li>November 16, 9:00 am: <a href="http://us.apachecon.com/us2007/program/talk/1992">Apache Solr out of the Box</a> by Chris Hostetter. Introduction to Solr.</li>
<li>November 16, 10:00 am: <a href="http://us.apachecon.com/us2007/program/talk/1943">Building a Vertical Search Site using Apache Software</a> by Ken Krugler. Will cover many Lucene-based projects.</li>
<li>November 16, 3:00 pm: <a href="http://us.apachecon.com/us2007/program/talk/1953">Apache Lucene Performance</a> by Grant Ingersoll. Tips and techniques for improving Lucene performance.</li>
<li>November 16, 4:00 pm: <a href="http://us.apachecon.com/us2007/program/talk/2017"> Advanced Indexing Techniques with Apache Lucene</a> by Michael Busch. Information on payloads and advanced indexing techniques.</li>
</ul>
</p>
<a name="N1005B"></a><a name="19+June+2007+-+Release+2.2+available"></a>
<h3 class="boxed">19 June 2007 - Release 2.2 available</h3>
<p>This release has many improvements since release 2.1. New major features:
<ul>
<li>
<a href="http://lucene.apache.org/java/2_2_0/api/org/apache/lucene/index/IndexWriter.html">"Point-in-time" searching over NFS</a>
</li>
<li>
<a href="http://lucene.apache.org/java/2_2_0/api/org/apache/lucene/search/payloads/package-summary.html">Payloads</a>
</li>
<li>
<a href="http://lucene.apache.org/java/2_2_0/api/org/apache/lucene/search/function/package-summary.html">Function queries</a>
</li>
<li>
<a href="http://lucene.apache.org/java/2_2_0/api/org/apache/lucene/document/Field.html">New API for pre-analyzed fields</a>
</li>
</ul>
In addition Lucene 2.2 has many performance
improvements, bug fixes, etc. See
<a href="http://svn.apache.org/repos/asf/lucene/java/tags/lucene_2_2_0/CHANGES.txt">CHANGES.txt</a>
for details.
</p>
<p>Lucene 2.2 includes index format changes that are not readable
by older versions of Lucene. Lucene 2.2 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.
</p>
<p>Binary and source distributions are
available
<a href="http://www.apache.org/dyn/closer.cgi/lucene/java/">here</a>.
</p>
<a name="N1008E"></a><a name="18+February+2007+-+Lucene+at+ApacheCon+Europe"></a>
<h3 class="boxed">18 February 2007 - Lucene at ApacheCon Europe</h3>
<p>
<a href="http://www.eu.apachecon.com"><img alt="ApacheCon Europe logo" src="http://www.apache.org/ads/ApacheCon/2007-europe-125x125.png" style="float: left; padding: 3px;"></a>
Lucene Java and related <a href="http://lucene.apache.org/">Lucene</a> projects will have extensive representation at <a href="http://www.eu.apachecon.com">ApacheCon Europe</a> in Amsterdam this year. For the 2007 session,
Yonik Seeley will be giving the <a href="http://www.eu.apachecon.com/program/talk/11">Full-Text Search with Lucene</a> talk at 10:30 am on May 2nd. Immediately following, Grant Ingersoll
will be presenting <a href="http://www.eu.apachecon.com/program/talk/12">Advanced Lucene</a> at 11:30. Grant will also be leading a full day tutorial session on May 1st titled
<a href="http://www.eu.apachecon.com/program/talk/127">Lucene Boot Camp</a>.
</p>
<p>Lucene related talks include Solr committer Bertrand Delacr&eacute;taz's talk titled <a href="http://www.eu.apachecon.com/program/talk/34">Beyond full-text searches with Solr and Lucene</a> and
Hadoop committer Owen O'Malley's <a href="http://www.eu.apachecon.com/program/talk/36">Introduction to Hadoop</a>.
</p>
<p>Registration is now open on the ApacheCon website.</p>
<a name="N100C1"></a><a name="17+February+2007+-+Release+2.1+available"></a>
<h3 class="boxed">17 February 2007 - Release 2.1 available</h3>
<p>This release has many improvements since release
2.0, including new features, performance
improvements, bug fixes, etc. See
<a href="http://svn.apache.org/repos/asf/lucene/java/tags/lucene_2_1_0/CHANGES.txt">CHANGES.txt</a>
for details.
</p>
<p>Lucene 2.1 includes index format changes that are not readable
by older versions of Lucene. Lucene 2.1 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.
</p>
<p>Binary and source distributions are
available
<a href="http://www.apache.org/dyn/closer.cgi/lucene/java/">here</a>.
</p>
<a name="N100D9"></a><a name="3+January+2007+-+Nightly+Source+builds+available"></a>
<h3 class="boxed">3 January 2007 - Nightly Source builds available</h3>
<p>Nightly source builds of the current development version of Lucene
are now available at
<a href="http://people.apache.org/builds/lucene/java/nightly/">http://people.apache.org/builds/lucene/java/nightly/</a>. Files are named lucene-DATE-src.tar.gz where DATE is the date of the build.
</p>
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