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+<div id="masthead">
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td><h1>Code Igniter User Guide Version 1.5.0b1</h1></td>
+<td id="breadcrumb_right"><a href="../toc.html">Full Table of Contents</a></td>
+</tr>
+</table>
+</div>
+<!-- END NAVIGATION -->
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+<a href="http://www.codeigniter.com/">Code Igniter Home</a> &nbsp;&#8250;&nbsp;
+<a href="../index.html">User Guide Home</a> &nbsp;&#8250;&nbsp;
+Upgrading from 1.4.1 to 1.5.0
+</td>
+<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="www.codeigniter.com/user_guide/" />Search User Guide&nbsp; <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" />&nbsp;<input type="submit" class="submit" name="sa" value="Go" /></form></td>
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+
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+
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+<!-- START CONTENT -->
+<div id="content">
+
+<h1>Upgrading from 1.4.1 to 1.5.0</h1>
+
+<p class="important"><strong>Note:</strong> The instructions on this page assume you are running version 1.4.1.  If you 
+have not upgraded to that version please do so first.</p>
+
+<p>Before performing an update you should take your site offline by replacing the index.php file with a static one.</p>
+
+
+
+<h2>Step 1: Update your Code Igniter files</h2>
+
+<p>Replace these directories in your "system" folder with the new versions:
+
+<ul>
+
+<li><dfn>system/codeigniter/</dfn></li>
+<li><dfn>system/database/</dfn> (new for 1.5)</li>
+<li><dfn>system/helpers/</dfn></li>
+<li><dfn>system/language/</dfn></li>
+<li><dfn>system/libraries/</dfn></li>
+<li><dfn>system/scaffolding/</dfn></li>
+</ul>
+
+<p class="important"><strong>Note:</strong> If you have any custom developed files in these folders please make copies of them first.</p>
+
+
+<h2>Step 2: Update your database.php file</h2>
+
+<p>Open your <dfn>application/config/database.php</dfn> file and add these new items:</p>
+
+<pre>
+$db['default']['cache_on'] = FALSE;
+$db['default']['cachedir'] = '';
+</pre>
+
+
+
+<h2>Step 3: Update your user guide</h2>
+
+<p>Please also replace your local copy of the user guide with the new version.</p>
+
+</div>
+<!-- END CONTENT -->
+
+
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+<p>
+Previous Topic:&nbsp;&nbsp;<a href="index.html">Installation Instructions</a>
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+
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