Hi, I've just started using MonoDevelop/Xamarin Studio as of yesterday.
I'm unable to use Async/await (the keywords are highlighted, but result in compilation errors), and the standard .NET4.5 libraries don't exist (i.e. there's no HttpClient in System.Net, or at all!)
I've tried all of the Stable, Beta, and Alpha channels (versions 4.0.3 and 4.0.5)
I'm evaluating Mono+GTK# as a cross-platform .NET solution for a new project I am starting, but if it's limited to a subset of the language & libraries, it's not very portable.