Can anyone give the main differences between 3.x and 4.x?
E.g. what features and/or improvements make it so apps like Foursquare require 4.0?
E.g. what features and/or improvements make it so apps like Foursquare require 4.0?
Although I'm not sure what would happen if you compiled the appropriate parts of http://compiler-rt.llvm.org/ into a 3.x application.