It was being reported that the Facebook 3.0 for iPhone has some bugs. In order to Fix those bugs, Facebook for iPhone has been updated to version 3.0.1 (NOT 3.1).
This update is just to fix some bugs with birthdays, timestamps, friend list crashing, etc. Users are also facing problems with notifications which is not an application bug but it’s a server issue that will be fixed a next few days.
I have fixes ready for the bugs with birthdays, timestamps, crashing in the friends list, and many others. 3.01 will go to Apple shortly.
3.01 won’t fix the notifications error. That error is on our servers and will be fixed in a day or two.
So they make a national case against how slow Apple was with approving their app and immediately turn around and need a bug update.