when submitting for review on iTunes connect I got this:
New apps and app updates must be built with the public (GM) versions of Xcode 6 or later, OS X, and iOS SDK. Don't submit apps built with beta software including beta OS X builds.
My Xcode is Version 7.2.1 (7C1002)
OS X 10.11 (15A2301)
iOS SDK is iOS 9.2
I didn't use any beta version!!