apache
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<a href="#27+November%2C+2007%3A+release+0.15.1+available">27 November, 2007: release 0.15.1 available </a>
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<a href="#26+November%2C+2007%3A+release+0.14.4+available">26 November, 2007: release 0.14.4 available </a>
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<a href="#19+October%2C+2007%3A+release+0.14.3+available">19 October, 2007: release 0.14.3 available </a>
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<a href="#4+September%2C+2007%3A+release+0.14.1+available"> 4 September, 2007: release 0.14.1 available </a>
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<a name="N1000C"></a><a name="Download"></a>
<h2 class="h3">Download</h2>
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<a name="N10023"></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>
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<h2 class="h3">News</h2>
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<a name="N1003D"></a><a name="27+November%2C+2007%3A+release+0.15.1+available"></a>
<h3 class="h4">27 November, 2007: release 0.15.1 available </h3>
<p>This release fixes critical bugs in release 0.15.0.</p>
<a name="N10047"></a><a name="26+November%2C+2007%3A+release+0.14.4+available"></a>
<h3 class="h4">26 November, 2007: release 0.14.4 available </h3>
<p>This release fixes critical bugs in release 0.14.3.</p>
<a name="N10051"></a><a name="29+October+2007%3A+release+0.15.0+available"></a>
<h3 class="h4">29 October 2007: release 0.15.0 available </h3>
<p>This release contains my improvements, new features, bug
      fixes and optimizations.  See the release notes (above) for
      details.</p>
<a name="N1005B"></a><a name="19+October%2C+2007%3A+release+0.14.3+available"></a>
<h3 class="h4">19 October, 2007: release 0.14.3 available </h3>
<p>This release fixes critical bugs in release 0.14.2.</p>
<a name="N10065"></a><a name="4+September%2C+2007%3A+release+0.14.1+available"></a>
<h3 class="h4"> 4 September, 2007: release 0.14.1 available </h3>
<p>New features in release 0.14 include:</p>
<ul>
	  
<li>Better checksums in HDFS.  Checksums are no longer
	  stored in parallel HDFS files, but are stored directly by
	  datanodes alongside blocks.  This is more efficient for the
	  namenode and also improves data integrity.</li>

	  
<li>Pipes: A C++ API for MapReduce</li>

	  
<li>Eclipse Plugin, including HDFS browsing, job
	  monitoring, etc.</li>

	  
<li>File modification times in HDFS.</li>
	
</ul>
<p>There are many other improvements, bug fixes, optimizations
	and new features.  Performance and reliability are better than
	ever.</p>
<div class="note">
<div class="label">Note</div>
<div class="content">When upgrading an existing HDFS filesystem to a 0.14.x
	release from a 0.13.x or earlier release, you should first
	start HDFS with 'bin/start-dfs.sh -upgrade'.  See the <a href="http://wiki.apache.org/lucene-hadoop/Hadoop_0.14_Upgrade">Hadoop
	0.14 Upgrade</a> page for details.</div>
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