The discussion forum software was updated overnight Sunday night. You should not see any differences, as this was a "maintenance release", fixing some "bugs", including a number of security problems that have been discovered over the last 6 months since we last updated the software.
As I've said before, doing these updates is quite important because the release of a new "maintenance release" means the publication of the security flaws in the previous release, which hackers read to see if they can find any ways into a web site like this one.
Please let us know if you discover anything unusual with this new version of the software.