Xamarin.iOS 12.8 Release Notes
To see installation instructions for both Visual Studio for Mac and Visual Studio 2019, please visit http://releases.xamarin.com/
- The latest features and APIs requires Xcode 10.2 and the bundled iOS, tvOS and watchOS SDKs
- Apple Xcode 10.2 requires a Mac running OSX 10.14.3 (Mojave) or newer
What's New in this Release
Support for Xcode 10.2
For more information you can consult the Xcode 10.2 release notes from Apple.
Support for iOS 12.2
For more information you can consult the iOS 12.2 release notes from Apple.
Support for tvOS 12.2
For more information you can consult the tvOS 12.2 release notes from Apple.
Support for watchOS 5.2
For more information you can consult the watchOS 5.2 release notes from Apple.
This version of Xamarin.iOS corresponds to our 16.0 (
d16-0) milestone and includes support for Xcode 10.2.
- May 2, 2019 - Xamarin.iOS 220.127.116.11
- April 4, 2019 - Xamarin.iOS 18.104.22.168
You can learn more about how we ship our releases in the Visual Studio 2019 Release Rhythm document.
May 2, 2019 - Xamarin.iOS 22.214.171.124
- 5132 - [uikit] Don't crash if
UIGestureRecognizer.Disposeis called multiple… times
- 5798 - [mono] Fixed LLVM optimization regression where APIs that would return generics might sometimes not work properly
April 4, 2019 - Xamarin.iOS 126.96.36.199
This release is based on Xamarin.iOS 12.6 (d16-0) and the Xcode 10.2 final release.
64 bits watchOS support
Xcode 10 GM added support for 64 bits watch application, aka
arm64_32. The current app store submission process requires this architecture to be included in your application when including watch support. You can workaround this with [https://github.com/xamarin/xamarin-macios/issues/4810#issuecomment-421338365](these instructions).
Trying to run a watch app on the new Series 4 Apple Watch will fail with this error:
IncorrectArchitecture: Failed to find matching arch for 32-bit Mach-O input file ... error MT1006: Could not install the application 'MyTestApp.app' on the device 'MyDevice': AMDeviceSecureInstallApplicationBundle returned: 0xe8000087 (kAMDIncorrectArchitectureError).
This is because the S4 device can only execute native
armv7klike previous watches.
Please read https://github.com/xamarin/xamarin-macios/issues/4864 for more information and a workaround.
Using an older Xcode version
The following documents contains a complete list of the API changes since the Xamarin.iOS 12.6 stable release:
Integrated Mono Features/Fixes
Your feedback is important to us. If there are any problems with this release, check the Xamarin.iOS Forums and Xamarin Mac/iOS Github Repository for existing issues. If you do not find any matching issue, please feel free to start a new discussion and report an issue.
Xamarin.iOS is based on the following open-source repositories: