iOS 5 fully compatible?

Today the new iOS 5 was released. We are working on a game and need to know if there is something to consider for such upgrade.

Also at this time what is the suggested development environment (Xcode, iOS Mac version, etc.) to avoid rejection apps from Apple Store.

Regards.

Rigs.

My game was approved a week ago but I just updated to iOS5 and it won’t run on a normal build.
If I use a developmentbuild it works. I’m stumped…and very pissed off.
http://forum.unity3d.com/threads/107…-approved-game