The upgrade to WPMU 2.7 has been completed. Everything looks good so far that I’ve seen, but please let me know if you find any problems.
WordPress MU version 2.7 was released today. I’ll be doing the upgrade in the morning on Friday, Feb 6. You will notice a significant change in the back end interface, which was redesigned to be more user-friendly in version 2.7.
I don’t expect more than a few minutes downtime, but this is the first time doing a WPMU upgrade, so it may be a bit longer. In the case of major problems, if the upgrade isn’t complete by 11:30 am, I will revert and restore from backups.