(Note that I’ve just upgraded from 4.x, so I’ll be posting several questions and bug reports. Overall the migration went surprisingly well and the boards are still functional, so kudos for that!)
I have noticed that the time calculations for “Last Post” appear to not compensate for the time zone.
For instance, if I post to my forums, the time on the post itself is correct — but when I look at the topic list, it shows the last post as being “7 hours ago.” And indeed, my timezone is UTC-7.
This isn’t a showstopper, and it might even be a known issue, but I figured I’d mention it.