I was convinced that I'd already upgraded to 2.2.3 and was about to apply the 2.2.4 patch when I noticed that my system module displays the version 2.13.
I downloaded the upgrade files and upgraded te modules 'successfully' according to the messages but it still displays version 2.13 in modules admin section. Have I missed something here?
I want to get right upto date ASAP because people are having difficulties on some areas of the site including registration where they're getting the 'no valid ticket' error message.
Thanks in advance.

The XOOPS Info module gives information about all kind of version numbers, see here for more info: https://xoops.org/modules/news/article.php?storyid=2635

Hey that's great thanks - what a cool resource.
Turns out I AM using 2.2.3Final after all. It still says 2.13 in the module admin area though???
Anyway, it doesn't matter now. I'm off to apply the patch.