Upgraded from 4.2.1 to 4.2.2 on clone site - what are common issues less noticeable?

[pityocamptes]

Ok, thanks. I did not see any declaration errors at the top of the page. To see these, would I need to change the errors to show? If so, is this in the config file? Or where? or will the declaration errors show regardless? So, can I safely assume that since I have no declaration errors that I'm good to go? I did notice that in the admincp that it still shows 4.2.1 for the admin cp version, but on the forum index it does show the 4.2.2... thanks!