removed 3.x compatibility code add helper macros swap and swapf for swapping variables add DegreeToRadians and RadiansToDegree helpers
… instead of NSLocalizedString(@"StringToken", @"").
…@holwick - thanks for sharing! See PSMacros for datails. New stuff is e.h. performance measurement macros, helper for collections, user defaults, etc. As macros compile away if you don't use them, it doesn't make your app thicker.