This release adds support for Xamarin Unified API that makes it simple to share code between iOS and Mac. More importantly, it also makes it possible to target both 32-bit and 64-bit Apple platforms with the same binary. Apple now requires that all new iOS submissions to the App Store support 64-bit platforms, and from June 1st, this requirement will apply to application updates as well. If you are developing a Xamarin.iOS application using one of our components, you should upgrade as soon as possible.
(For a complete list of changes, see the release history.)