Upgrade Instructions
Select the package you want to download and upload its contents to the webserver. If upgrading to an existing site, disregard the /install folder

When the files are uploaded, access http://www.example.com/xoopsupdate.php replacing http://www.example.com with the URL to your XOOPS site

Reload the page until a form appears with a submit button, then press the button and your system is updated.

After successful update, delete the xoopsupdate.php file from your XOOPS root. It should not harm anything to keep it, but it is a good idea to delete it.

Download XOOPS 2.2 RC2 Full (no modules):
(for testing only)
Xoops 2.2 RC2 (Not stable) (.zip)
Xoops 2.2 RC2 (Not stable) (.tar.gz)

RC2 Upgrade Patches:
(for testing only)
Xoops 2.0.13 to 2.2 RC2 (Not stable) (.zip)
Xoops 2.0.13 to 2.2 RC2 (Not stable) (.tar.gz)
Xoops 2.2 RC to 2.2 RC2 (Not stable) (.zip)
Xoops 2.2 RC to 2.2 RC2 (Not stable) (.tar.gz)