# CodeIgniter User Guide Version 1.5.4

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# Upgrading From Beta 1.0 to Final 1.2

To upgrade to Version 1.2 please replace the following directories with the new versions:

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

- drivers
- helpers
- init
- language
- libraries
- plugins
- scaffolding

Please also replace your local copy of the user guide with the new version.