Upgrading from 3.0.1 to 3.0.2
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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 all files and directories in your *system/* directory.

Note:

  If you have any custom developed files in these directories, please
  make copies of them first.


Step 2: Update your application/config/constants.php file
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The *application/config/constants.php* file has been updated to check
if constants aren’t already defined before doing that, making it
easier to add an environment-specific configuration.

Note:

  If you’ve made modifications to this file, please make a backup
  first and cross-check the differences first.
