I've just gotten word from Production Control that our September game update will not be going out tonight due to a scheduling issue. I don't have any additional details. I am advised that the patch will occur tomorrow evening instead (late Tuesday night/early Wednesday morning).
Apologies to those that took the day off or spontaneously got sick (/cough) for the patch.
P.S. That's why we always throw "tentative" in there a lot. Stuff is often outside of our direct control.