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             <h1><a href="/release/0.15.3.html">release 0.15.3 available</a></h1>
             <p><small>2008 Jan 18 </small></p>

             <!---
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 <p>This release fixes critical bugs in release 0.15.3.</p>


             <h1><a href="/release/0.15.2.html">release 0.15.2 available</a></h1>
             <p><small>2008 Jan 2 </small></p>

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 <p>This release fixes critical bugs in release 0.15.1.</p>


             <h1><a href="/release/0.15.1.html">release 0.15.1 available</a></h1>
             <p><small>2007 Nov 27 </small></p>

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 <p>This release fixes critical bugs in release 0.15.0.</p>


             <h1><a href="/release/0.14.4.html">release 0.14.4 available</a></h1>
             <p><small>2007 Nov 26 </small></p>

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 <p>This release fixes critical bugs in release 0.14.3.</p>


             <h1><a href="/release/0.15.0.html">release 0.15.0 available</a></h1>
             <p><small>2007 Oct 29 </small></p>

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 <p>This release contains many improvements, new features, bug fixes and
 optimizations.</p>
 <p>Notably, this contains the first working version of
 <a href="https://wiki.apache.org/hadoop/Hbase">HBase</a>.</p>
 <p>See the release notes (above) for details.</p>
 <p>When upgrading an existing HDFS filesystem to a 0.15.x release from an
 earlier release, you should first start HDFS with &lsquo;bin/start-dfs.sh
 -upgrade&rsquo;. See the <a href="https://wiki.apache.org/hadoop/Hadoop_Upgrade">Hadoop
 Upgrade</a> page for details.</p>


             <h1><a href="/release/0.14.3.html">release 0.14.3 available</a></h1>
             <p><small>2007 Oct 19 </small></p>

             <!---
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 -->
 <p>This release fixes critical bugs in release 0.14.2.</p>


             <h1><a href="/release/0.14.1.html">release 0.14.1 available</a></h1>
             <p><small>2007 Sep 4 </small></p>

             <!---
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   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
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 <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>
 <p>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
 &lsquo;bin/start-dfs.sh -upgrade&rsquo;. See the <a href="https://wiki.apache.org/hadoop/Hadoop_0.14_Upgrade">Hadoop 0.14
 Upgrade</a> page for
 details.</p>


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	<h1><a href="/release/0.15.3.html">release 0.15.3 available</a></h1>
	<p><small>2008 Jan 18 </small></p>

	<!---
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	you may not use this file except in compliance with the License.
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	<p>This release fixes critical bugs in release 0.15.3.</p>



	<h1><a href="/release/0.15.2.html">release 0.15.2 available</a></h1>
	<p><small>2008 Jan 2 </small></p>

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	<p>This release fixes critical bugs in release 0.15.1.</p>



	<h1><a href="/release/0.15.1.html">release 0.15.1 available</a></h1>
	<p><small>2007 Nov 27 </small></p>

	<!---
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	you may not use this file except in compliance with the License.
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	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
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	<p>This release fixes critical bugs in release 0.15.0.</p>



	<h1><a href="/release/0.14.4.html">release 0.14.4 available</a></h1>
	<p><small>2007 Nov 26 </small></p>

	<!---
	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
	limitations under the License. See accompanying LICENSE file.
	-->
	<p>This release fixes critical bugs in release 0.14.3.</p>



	<h1><a href="/release/0.15.0.html">release 0.15.0 available</a></h1>
	<p><small>2007 Oct 29 </small></p>

	<!---
	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
	limitations under the License. See accompanying LICENSE file.
	-->
	<p>This release contains many improvements, new features, bug fixes and
	optimizations.</p>
	<p>Notably, this contains the first working version of
	<a href="https://wiki.apache.org/hadoop/Hbase">HBase</a>.</p>
	<p>See the release notes (above) for details.</p>
	<p>When upgrading an existing HDFS filesystem to a 0.15.x release from an
	earlier release, you should first start HDFS with ‘bin/start-dfs.sh
	-upgrade’. See the <a href="https://wiki.apache.org/hadoop/Hadoop_Upgrade">Hadoop
	Upgrade</a> page for details.</p>



	<h1><a href="/release/0.14.3.html">release 0.14.3 available</a></h1>
	<p><small>2007 Oct 19 </small></p>

	<!---
	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
	limitations under the License. See accompanying LICENSE file.
	-->
	<p>This release fixes critical bugs in release 0.14.2.</p>



	<h1><a href="/release/0.14.1.html">release 0.14.1 available</a></h1>
	<p><small>2007 Sep 4 </small></p>

	<!---
	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
	limitations under the License. See accompanying LICENSE file.
	-->
	<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>
	<p>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="https://wiki.apache.org/hadoop/Hadoop_0.14_Upgrade">Hadoop 0.14
	Upgrade</a> page for
	details.</p>



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