Xamarin.iOS 13.8 Release Notes

System Requirements | What's New | Known Issues | Blogs | Open Source

To see installation instructions for both Visual Studio for Mac and Visual Studio 2019, please visit https://docs.microsoft.com/xamarin/get-started/installation

Requirements

  • The latest features and APIs require Xcode 11.2 and the bundled iOS, tvOS and watchOS SDKs
  • Apple Xcode 11.2 requires a Mac running macOS 10.14.4 (Mojave) or newer
  • Visual Studio 2019 or Visual Studio for Mac

What's New in this Release

Release History

This version of Xamarin.iOS corresponds to our 16.4 (d16-4) milestone.

  • December 11, 2019 - Xamarin.iOS 13.8.3.0
  • November 11, 2019 - Xamarin.iOS 13.8.2.2
  • November 4, 2019 - Xamarin.iOS 13.8.1.17
  • October 17, 2019 - Xamarin.iOS 13.8.1.1

You can learn more about how we ship our releases in the Visual Studio 2019 Release Rhythm document.

December 11, 2019 - Xamarin.iOS 13.8.3.0

This version is included in Visual Studio for Mac 8.4 Preview 4.

Issues

  • 7484 - [Interpreter] Fixes interpreter crash with EntityFrameworkCore 3.0
  • 7399 - [AOT] Fixes SignalR issue with AOT on device

November 11, 2019 - Xamarin.iOS 13.8.2.2

This version is included in Visual Studio for Mac 8.4 Preview 2.1.

This release includes new and updated API to support Xcode 11.2. For more information you can view our release notes for 13.6.

Enhancements

  • 7309 - [Generator] Allow 1 level nested classes

November 4, 2019 - Xamarin.iOS 13.8.1.17

This version is included in Visual Studio for Mac 8.4 Preview 2.

Issues

  • 17416 - [Runtime] Fix Socket.BeginConnect so it does not complete too early when not using callback
  • 17422 - [Profiler] Fix coverage profiler on macOS
  • 17524 - [Debugger] Avoid cutting exceptions in stack traces
  • 17530 - [Runtime] Update NTLM authentication protocol related sources
  • 17240 - [Runtime] Add drawing type converters to mobile profiles

Enhancements

  • 7164 - [Linker] Ensure removal of NSUrlSessionHandler if unused

October 17, 2019 - Xamarin.iOS 13.8.1.1

This version is included in Visual Studio for Mac 8.4 Preview 1.

This release includes new and updated API to support Xcode 11.1. For more information you can view our release notes for 13.4.

Enhancements

  • 6863 - [Generator] Provide clear error message on type mismatch with BindAs error

Issues

  • 7004 - [Runtime] Build and ship Xamarin[-debug].framework.dSYM
  • 5603 - [Network] Add currentPath property to NWPathMonitor
  • 6443 - [Foundation] Allow users to explicitly bypass the background session check
  • 6762 - [Foundation] Ensure that we allow cellular data by default
  • 6883 - [Registrar] Ignore method encodings when processing copyback arguments in the dynamic registrar
  • 6704 - [Foundation] Ensure that a collection in NSUrlSessionHandler is not modified during the loop
  • 6828 - [Generator] Handle subclasses of NSObject as ref/out parameters in third-party libraries
  • 6346 - [Linker] Fix NullReferenceException when System.Linq.Queryable is used
  • 6711 - [Linker] Always preserve INativeObject (interface) on types
  • 6688 - [NaturalLanguage] Fix NullReferenceException in NLLanguageRecognizer Community Contribution ❤️
  • 6649 - [UIKit] Add [NullAllowed] to UIButton.SetAttributedTitle
  • 6654 - [AddressBook] Make ABRecord non-abstract

Known Issues

  • 7264 - MT0000: Unexpected error ... when a project's path has a quote

    If a project or its directory contain a single quote, the build will fail with an MT0000 error. Workaround: rename the project or the directory to remove the single quote.

Using an older Xcode version

Using an older Xcode version (than the one mentioned in the above requirements) is often possible. For more information see the following documentation.

API Diff

The following documents contains a complete list of the API changes since the Xamarin.iOS 13.6 stable release:

Integrated Mono Features/Fixes

Xamarin.iOS uses a customized runtime and base class libraries (BCL) from Mono 6.6 Commit 52810372

Feedback

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.

Open Source

Xamarin.iOS is based on the following open-source repositories:

Contributors

A big Thank You! to external contributors who made improvements in this release: