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  <div class="section" id="upgrading-from-2-1-0-to-2-1-1">
<h1>Upgrading from 2.1.0 to 2.1.1<a class="headerlink" href="#upgrading-from-2-1-0-to-2-1-1" title="Permalink to this headline">¶</a></h1>
<p>Before performing an update you should take your site offline by
replacing the index.php file with a static one.</p>
<div class="section" id="step-1-update-your-codeigniter-files">
<h2>Step 1: Update your CodeIgniter files<a class="headerlink" href="#step-1-update-your-codeigniter-files" title="Permalink to this headline">¶</a></h2>
<p>Replace all files and directories in your &#8220;system&#8221; folder.</p>
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<p class="first admonition-title">Note</p>
<p class="last">If you have any custom developed files in these folders please
make copies of them first.</p>
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<h2>Step 2: Replace config/mimes.php<a class="headerlink" href="#step-2-replace-config-mimes-php" title="Permalink to this headline">¶</a></h2>
<p>This config file has been updated to contain more user mime-types, please copy
it to _application/config/mimes.php*.</p>
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<h2>Step 3: Update your IP address tables<a class="headerlink" href="#step-3-update-your-ip-address-tables" title="Permalink to this headline">¶</a></h2>
<p>This upgrade adds support for IPv6 IP addresses. In order to store them, you need
to enlarge your ip_address columns to 45 characters. For example, CodeIgniter&#8217;s
session table will need to change</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">ALTER</span> <span class="nx">TABLE</span> <span class="nx">ci_sessions</span> <span class="nx">CHANGE</span> <span class="nx">ip_address</span> <span class="nx">ip_address</span> <span class="nx">varchar</span><span class="p">(</span><span class="mi">45</span><span class="p">)</span> <span class="k">default</span> <span class="s1">&#39;0&#39;</span> <span class="k">NOT</span> <span class="k">NULL</span>
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