Previews of upcoming versions of Xamarin.iOS are available when you select the Alpha channel in your IDE. Depending on the release cycle, updates on the Alpha channel will only be available if your system has the proper Apple SDK installed.
For example, the April 15th 2010 preview of Xamarin.iOS required Apple's confidential iPhoneOS 4.0 SDK, so the packages were only installed if you had selected the Alpha channel in the Xamarin Studio Updater and if you had iPhoneOS 4.0 installed
Enabling Preview Updates
Follow these steps:
- Make sure that you have the iPhoneOS 4.0 SDK installed, this is mandatory.
- In Xamarin Studio:
- In Visual Studio: