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  <div class="section" id="upgrading-from-a-previous-version">
<h1>Upgrading From a Previous Version<a class="headerlink" href="#upgrading-from-a-previous-version" title="Permalink to this headline">¶</a></h1>
<p>Please read the upgrade notes corresponding to the version you are
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<ul>
<li class="toctree-l1"><a class="reference internal" href="upgrade_316.html">Upgrading from 3.1.5 to 3.1.6</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_315.html">Upgrading from 3.1.4 to 3.1.5</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_314.html">Upgrading from 3.1.3 to 3.1.4</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_313.html">Upgrading from 3.1.2 to 3.1.3</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_312.html">Upgrading from 3.1.1 to 3.1.2</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_311.html">Upgrading from 3.1.0 to 3.1.1</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_310.html">Upgrading from 3.0.6 to 3.1.0</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_306.html">Upgrading from 3.0.5 to 3.0.6</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_305.html">Upgrading from 3.0.4 to 3.0.5</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_304.html">Upgrading from 3.0.3 to 3.0.4</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_303.html">Upgrading from 3.0.2 to 3.0.3</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_302.html">Upgrading from 3.0.1 to 3.0.2</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_301.html">Upgrading from 3.0.0 to 3.0.1</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_300.html">Upgrading from 2.2.x to 3.0.x</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_223.html">Upgrading from 2.2.2 to 2.2.3</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_222.html">Upgrading from 2.2.1 to 2.2.2</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_221.html">Upgrading from 2.2.0 to 2.2.1</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_220.html">Upgrading from 2.1.4 to 2.2.x</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_214.html">Upgrading from 2.1.3 to 2.1.4</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_213.html">Upgrading from 2.1.2 to 2.1.3</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_212.html">Upgrading from 2.1.1 to 2.1.2</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_211.html">Upgrading from 2.1.0 to 2.1.1</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_210.html">Upgrading from 2.0.3 to 2.1.0</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_203.html">Upgrading from 2.0.2 to 2.0.3</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_202.html">Upgrading from 2.0.1 to 2.0.2</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_201.html">Upgrading from 2.0 to 2.0.1</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_200.html">Upgrading from 1.7.2 to 2.0</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_172.html">Upgrading from 1.7.1 to 1.7.2</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_171.html">Upgrading from 1.7.0 to 1.7.1</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_170.html">Upgrading from 1.6.3 to 1.7.0</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_163.html">Upgrading from 1.6.2 to 1.6.3</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_162.html">Upgrading from 1.6.1 to 1.6.2</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_161.html">Upgrading from 1.6.0 to 1.6.1</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_160.html">Upgrading from 1.5.4 to 1.6.0</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_154.html">Upgrading from 1.5.3 to 1.5.4</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_153.html">Upgrading from 1.5.2 to 1.5.3</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_152.html">Upgrading from 1.5.0 or 1.5.1 to 1.5.2</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_150.html">Upgrading from 1.4.1 to 1.5.0</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_141.html">Upgrading from 1.4.0 to 1.4.1</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_140.html">Upgrading from 1.3.3 to 1.4.0</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_133.html">Upgrading from 1.3.2 to 1.3.3</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_132.html">Upgrading from 1.3.1 to 1.3.2</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_131.html">Upgrading from 1.3 to 1.3.1</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_130.html">Upgrading from 1.2 to 1.3</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_120.html">Upgrading from 1.1 to 1.2</a></li>
<li class="toctree-l1"><a class="reference internal" href="upgrade_b11.html">Upgrading from Beta 1.0 to Beta 1.1</a></li>
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