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<h1>Releases</h1>
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<a href="#Download">Download</a>
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<li>
<a href="#Release+Notes">Release Notes</a>
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<a href="#Project+News">Project News</a>
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<li>
<a href="#25+July%2C+2007%3A+release+0.13.1+available">25 July, 2007: release 0.13.1 available</a>
</li>
<li>
<a href="#8+June%2C+2007%3A+release+0.13.0+available"> 8 June, 2007: release 0.13.0 available </a>
</li>
<li>
<a href="#8+June%2C+2006%3A"> 8 June, 2006: FAQ added to Wiki </a>
</li>
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<a href="#5+May%2C+2006%3A+release+0.2.0+available"> 5 May, 2006: release 0.2.0 available </a>
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<li>
<a href="#6+February%2C+2006%3A+nightly+builds"> 6 February, 2006: nightly builds </a>
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<a href="#3+February%2C+2006%3A+Hadoop+code+moved+out+of+Nutch"> 3 February, 2006: Hadoop code moved out of Nutch </a>
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<p>This page lists release numbers along with their dates and a
link to release notes. You can obtain releases from a nearby
mirror.</p>
<a name="N1000F"></a><a name="Download"></a>
<h2 class="h3">Download</h2>
<div class="section">
<p>Releases may be downloaded from Apache mirrors.</p>
<p>
<a href="http://www.apache.org/dyn/closer.cgi/lucene/hadoop/">
<strong><strong>Download a release now!</strong></strong></a>
</p>
<p>On the mirror, all recent releases are available, but are not
guaranteed to be stable. For stable releases, look in the stable
directory.
</p>
</div>
<a name="N10026"></a><a name="Release+Notes"></a>
<h2 class="h3">Release Notes</h2>
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<p>Release notes for Hadoop releases are available in Jira.</p>
<p>
<a href="http://issues.apache.org/jira/browse/HADOOP?report=com.atlassian.jira.plugin.system.project:changelog-panel">
<strong><strong>Browse release notes now!</strong></strong></a>
</p>
</div>
<a name="N1003A"></a><a name="Project+News"></a>
<h2 class="h3">Project News</h2>
<div class="section">
<a name="N10040"></a><a name="25+July%2C+2007%3A+release+0.13.1+available"></a>
<h3 class="h4">25 July, 2007: release 0.13.1 available</h3>
<p>This fixes critical bugs in the 0.13.0 release.</p>
<a name="N1004A"></a><a name="8+June%2C+2007%3A+release+0.13.0+available"></a>
<h3 class="h4"> 8 June, 2007: release 0.13.0 available </h3>
<p>
In addition to new features, this release contains significant performance and reliability improvements.
For example, MapReduce sort performance on large clusters has <a href="http://wiki.apache.org/lucene-hadoop-data/attachments/FAQ/attachments/sort900-20070607.png">doubled</a>.
</p>
<div class="note">
<div class="label">Note</div>
<div class="content">
When upgrading an existing <acronym title="Hadoop Distributed File System">HDFS</acronym> filesystem to this release, you should first start HDFS with <span class="codefrag">bin/start-dfs.sh -upgrade</span>
which makes it possible to revert the upgrade. For more information on this issue, see <a href="https://issues.apache.org/jira/browse/HADOOP-702#action_12482953">HADOOP-702</a>.
</div>
</div>
<a name="N10066"></a><a name="8+June%2C+2006%3A"></a>
<h3 class="h4"> 8 June, 2006: FAQ added to Wiki </h3>
<p>
Hadoop now has a <a href="http://wiki.apache.org/lucene-hadoop/FAQ">FAQ</a>. Please help make this more complete!
</p>
<a name="N10078"></a><a name="5+May%2C+2006%3A+release+0.2.0+available"></a>
<h3 class="h4"> 5 May, 2006: release 0.2.0 available </h3>
<p>
We are now aiming for monthly releases. There have been many bug fixes and improvements in the past month.
MapReduce and DFS are now fairly reliable on clusters with up to 200 nodes.
</p>
<a name="N10082"></a><a name="6+February%2C+2006%3A+nightly+builds"></a>
<h3 class="h4"> 6 February, 2006: nightly builds </h3>
<p>
Hadoop now has nightly builds. This automatically creates a <a href="http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/">downloadable version of Hadoop every night</a>.
All unit tests must pass, or a message is sent to the developers mailing list and no new version is created.
This also updates the <a href="http://lucene.apache.org/hadoop/api/index.html">javadoc</a>.
</p>
<a name="N10094"></a><a name="3+February%2C+2006%3A+Hadoop+code+moved+out+of+Nutch"></a>
<h3 class="h4"> 3 February, 2006: Hadoop code moved out of Nutch </h3>
<p>
The Hadoop code has now been moved into its own Subversion tree, renamed into packages under org.apache.hadoop.
All unit tests pass, but little else has yet been tested.
</p>
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