Xamarin Blog

An open source mobile platform for building Android, iOS, macOS, watchOS, and tvOS apps with .NET.

Get Ready for iOS 13 and Xcode 11

Support for iOS 13 and Xcode 11 to accompany Apple’s Xcode Gold Master (GM) release has just been announced! Now, build your Xamarin.iOS (and Xamarin.Forms for iOS) apps with Xcode 11 GM and submit your iOS 13, tvOS 13 and watchOS 6 apps to the Apple App Store.

iOS 13 Preview Release Now Available

Today, we are excited to share our first preview containing support for iOS 13 and Xcode 11! With today's preview, you can begin building applications using Xcode 13 and begin integrating existing new APIs for iOS 13 such as Sign in with Apple, along with support for iPadOS 13, watchOS 6, tvOS 13, and macOS 10.15.

Migrating MacOS Apps to 64-bit Before the Apple Transition

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.

Getting Ready for macOS’s Hardened Runtime and Notary

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.”

CoreML Programming with Xamarin.Mac and F#

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.