"iPhone 5 Optimization Requirement - Your binary is not optimized for iPhone 5. As of May 1, all new iPhone apps and app updates submitted must support the 4-inch display on iPhone 5. All apps must include a launch image of the appropriate size. Learn more about iPhone 5 support by reviewing the iOS Human Interface Guidelines. "
My unity3d - 3.5.2 xcode - 4.4.1
Can i upgrade xcode version to solve this problem.
a) Upgrade to Xcode 4.5 or later (though Xcode 4.4.1 might work)
b) If you are on iOS Basic then you need to upgrade to Unity 3.5.7. If you are on iOS Pro you might add iPhone 5 splash screen directly in Xcode, but upgrade to Unity 3.5.7 is still recommended.
If you try to just add an image to Xcode you will get an error saying you are using using Unity Basic and have problems. You have to upgrade to lastest Unity either 3x or 4x to get rid of this problem. Hopefully it will clear out a lot of crap apps.