I personally don't think it is such a good idea to have....
Powered by UBB.threadsâ„¢ 7.5.6p2 at the page footer.
I feel it is a kind of announcement to the hacking community - telling them where you're at (or not) security wise.
(Google is a hackers friend!)
(Just Google... "Powered by UBB.threadsâ„¢ 7.5.6p1")
I believe Powered by UBB.threadsâ„¢ would suffice.
I mean, if you need to know your version number, just take a look in the admin CP.
Thoughts?