If you want to perform upgrade on Xoops installed from Softaculous, just follow the path below:

cPanel --> Softaculous --> Portals/CMS --> Xoops,

find your Current installation and click 'Upgrade' link under "Version". If there isn't any 'Upgrade' button/link, that means that the application is up to date and Upgrade is not available. If your Xoops is not installed through Softaculous, or you want to upgrade your installation manually, you can follow these steps:

1. Go to your administration area --> system module --> preferences --> general settings and enable PHP debug

2. Run pre-upgrade script

3. After uploading all files in the patch archive, access www.YOURSITE.com/xoopsupdate.php, replacing www.YOURSITE.com with your site's URL. This will show error messages and no real content, but don't worry, just proceed to next step.

4. Reload the page

5. Press the submit button to update the system