# Upgrading from 1.7.0 to 1.7.1

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/codeigniter

- system/database

- system/helpers

- system/language

- system/libraries

Note

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

## Step 2: Update your user guide

Please replace your local copy of the user guide with the new version, including the image files.