Apple has been moving towards 64-bit only applications on macOS for a number of releases. Though new Xamarin.Mac applications target 64-bit by default, any existing Xamarin.Mac applications that target 32-bit must be migrated to 64-bit to continue working in the future. Learn more.
Today, we are happy to announce the release of all Xamarin API documentation as Open Source. Additionally, we have moved the hosting of Xamarin.Forms, Xamarin.Android, Xamarin.iOS & Xamarin.Mac, and SkiaSharp from their old Xamarin home to docs.microsoft.com.
With macOS Mojave, Apple introduced support for Hardened Runtime and Notary service. These two services are designed to improve application security on macOS. Recently Apple has stated:
“Beginning in macOS 10.14.5, all new or updated kernel extensions and all software from developers new to distributing with Developer ID must be notarized in order to run. In a future version of macOS, notarization will be required by default for all software.”
Although Xamarin technologies are most commonly used to develop mobile applications, Xamarin.Mac makes it easy to use your preferred .NET language to develop desktop Mac apps. There are many C# examples in Xamarin’s mac-samples directory on Github, but it's also easy to use F# to develop desktop Mac apps as well.