nk" href="#step-20-remove-usage-of-previously-deprecated-functionalities" title="Permalink to this headline">¶</a></h2>
<p>In addition to the <code class="docutils literal"><span class="pre">$autoload['core']</span></code> configuration setting, there’s a
number of other functionalities that have been removed in CodeIgniter 3.0.0:</p>
<div class="section" id="the-sha1-library">
<h3>The SHA1 library<a class="headerlink" href="#the-sha1-library" title="Permalink to this headline">¶</a></h3>
<p>The previou