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>application/config/user_agents.php (new file for 1.5)</li>
<li>application/config/smileys.php (new file for 1.5)</li>
<li>codeigniter/</li>
<li>database/ (new folder for 1.5. Replaces the “drivers” folder)</li>
<li>helpers/</li>
<li>language/</li>
<li>libraries/</li>
<li