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-#############################
-Upgrading from 1.4.1 to 1.5.0
-#############################
-
-.. note:: 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.
-
-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:
-
--  application/config/user_agents.php (new file for 1.5)
--  application/config/smileys.php (new file for 1.5)
--  codeigniter/
--  database/ (new folder for 1.5. Replaces the "drivers" folder)
--  helpers/
--  language/
--  libraries/
--  scaffolding/
-
-.. note:: If you have any custom developed files in these folders please
-	make copies of them first.
-
-Step 2: Update your database.php file
-=====================================
-
-Open your application/config/database.php file and add these new items::
-
-
-    $db['default']['cache_on'] = FALSE;
-    $db['default']['cachedir'] = '';
-
-Step 3: Update your config.php file
-===================================
-
-Open your application/config/config.php file and ADD these new items::
-
-
-    /*
-    |--------------------------------------------------------------------------
-    | Class Extension Prefix
-    |--------------------------------------------------------------------------
-    |
-    | This item allows you to set the filename/classname prefix when extending
-    | native libraries.  For more information please see the user guide:
-    |
-    | https://codeigniter.com/user_guide/general/core_classes.html
-    | https://codeigniter.com/user_guide/general/creating_libraries.html
-    |
-    */
-    $config['subclass_prefix'] = 'MY_';
-
-    /*
-    |--------------------------------------------------------------------------
-    | Rewrite PHP Short Tags
-    |--------------------------------------------------------------------------
-    |
-    | If your PHP installation does not have short tag support enabled CI
-    | can rewrite the tags on-the-fly, enabling you to utilize that syntax
-    | in your view files.  Options are TRUE or FALSE (boolean)
-    |
-    */
-    $config['rewrite_short_tags'] = FALSE;
-
-In that same file REMOVE this item::
-
-
-    /*
-    |--------------------------------------------------------------------------
-    | Enable/Disable Error Logging
-    |--------------------------------------------------------------------------
-    |
-    | If you would like errors or debug messages logged set this variable to
-    | TRUE (boolean).  Note: You must set the file permissions on the "logs" folder
-    | such that it is writable.
-    |
-    */
-    $config['log_errors'] = FALSE;
-
-Error logging is now disabled simply by setting the threshold to zero.
-
-Step 4: Update your main index.php file
-=======================================
-
-If you are running a stock index.php file simply replace your version
-with the new one.
-
-If your index.php file has internal modifications, please add your
-modifications to the new file and use it.
-
-Step 5: Update your user guide
-==============================
-
-Please also replace your local copy of the user guide with the new
-version.