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  <div class="section" id="upgrading-from-1-5-4-to-1-6-0">
<h1>Upgrading from 1.5.4 to 1.6.0<a class="headerlink" href="#upgrading-from-1-5-4-to-1-6-0" 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 these files and directories in your “system” folder with the new
versions:</p>
<ul class="simple">
<li>system/codeigniter</li>
<li>system/database</li>
<li>system/helpers</li>
<li>system/libraries</li>
<li>system/plugins</li>
<li>system/language</li>
</ul>
<div class="admonition note">
<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>
</div>
</div>
<div class="section" id="step-2-add-time-to-update-to-your-config-php">
<h2>Step 2: Add time_to_update to your config.php<a class="headerlink" href="#step-2-add-time-to-update-to-your-config-php" title="Permalink to this headline">¶</a></h2>
<p>Add the following to application/config/config.php with the other
session configuration options</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;sess_time_to_update&#39;</span><span class="p">]</span>         <span class="o">=</span> <span class="mi">300</span><span class="p">;</span>
</pre></div>
</div>
</div>
<div class="section" id="step-3-add-autoload-model">
<h2>Step 3: Add $autoload[‘model’]<a class="headerlink" href="#step-3-add-autoload-model" title="Permalink to this headline">¶</a></h2>
<p>Add the following to application/config/autoload.php</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="cm">/*</span>
<span class="cm">| -------------------------------------------------------------------</span>
<span class="cm">| Auto-load Model files</span>
<span class="cm">| -------------------------------------------------------------------</span>
<span class="cm">| Prototype:</span>
<span class="cm">|</span>
<span class="cm">| $autoload[&#39;model&#39;] = array(&#39;my_model&#39;);</span>
<span class="cm">|</span>
<span class="cm">*/</span>

<span class="nv">$autoload</span><span class="p">[</span><span class="s1">&#39;model&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="k">array</span><span class="p">();</span>
</pre></div>
</div>
</div>
<div class="section" id="step-4-add-to-your-database-php">
<h2>Step 4: Add to your database.php<a class="headerlink" href="#step-4-add-to-your-database-php" title="Permalink to this headline">¶</a></h2>
<p>Make the following changes to your application/config/database.php file:</p>
<p>Add the following variable above the database configuration options,
with $active_group</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$active_record</span> <span class="o">=</span> <span class="k">TRUE</span><span class="p">;</span>
</pre></div>
</div>
<p>Remove the following from your database configuration options</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$db</span><span class="p">[</span><span class="s1">&#39;default&#39;</span><span class="p">][</span><span class="s1">&#39;active_r&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="k">TRUE</span><span class="p">;</span>
</pre></div>
</div>
<p>Add the following to your database configuration options</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$db</span><span class="p">[</span><span class="s1">&#39;default&#39;</span><span class="p">][</span><span class="s1">&#39;char_set&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s2">&quot;utf8&quot;</span><span class="p">;</span>
<span class="nv">$db</span><span class="p">[</span><span class="s1">&#39;default&#39;</span><span class="p">][</span><span class="s1">&#39;dbcollat&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s2">&quot;utf8_general_ci&quot;</span><span class="p">;</span>
</pre></div>
</div>
</div>
<div class="section" id="step-5-update-your-user-guide">
<h2>Step 5: Update your user guide<a class="headerlink" href="#step-5-update-your-user-guide" title="Permalink to this headline">¶</a></h2>
<p>Please also replace your local copy of the user guide with the new
version.</p>
</div>
</div>

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