MoreToday is a big day for the entire phpBB community and we hope you're excited! With the help of hundreds of volunteers, we have created the best and most modern version of phpBB yet: 3.1 Ascraeus.
At present phpbb 3.0.12 is the software we use on this site. I've been testing out the new 3.1.0 through the Beta and RC releases and all looks good. Hope to upgrade once more extensions are released and officially accepted - this might be a few months away.