bcit-ci/CodeIgniter

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Upgrading from 1.5.2 to 1.5.3
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Before performing an update you should take your site offline by
replacing the index.php file with a static one.

Step 1: Update your CodeIgniter files
=====================================

Replace these files and directories in your "system" folder with the new
versions:

-  system/database/drivers
-  system/helpers
-  system/libraries/Input.php
-  system/libraries/Loader.php
-  system/libraries/Profiler.php
-  system/libraries/Table.php

.. note:: If you have any custom developed files in these folders please
    make copies of them first.

Step 2: Update your user guide
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Please also replace your local copy of the user guide with the new
version.