Xamarin.Mac 5.2 Release Notes

System Requirements | What's New | No Known Issues | Blogs | Open Source

Requirements

  • The latest features and APIs require Xcode 10 and the bundled macOS SDK
  • Apple Xcode 10 requires a Mac running macOS 10.13.6 (High Sierra) or newer

What's New in this Release

Release History

This version of Xamarin.Mac corresponds to our 15.9 (d15-9) milestone.

  • March 20, 2019 - Xamarin.Mac 5.2.1.16
  • February 15, 2019 - Xamarin.Mac 5.2.1.15
  • January 14, 2019 - Xamarin.Mac 5.2.1.13
  • December 11, 2018 - Xamarin.Mac 5.2.1.12
  • November 28, 2018 - Xamarin.iOS 12.2.1.11
  • October 2, 2018 - Xamarin.Mac 5.2.0.0
  • September 11, 2018 - Xamarin.Mac 4.8.0.22
  • August 21, 2018 - Xamarin.Mac 4.8.0.1

You can learn more about how we ship our releases in the Visual Studio 2017 Release Rhythm document.

March 20, 2019 - Xamarin.Mac 5.2.1.16

This version is included in Visual Studio for Mac 8.0 Preview 4.

Issues fixed

  • 5510 - [mlaunch] Fixed device deployment with Xcode 10.2+ on macOS 10.14.4+

February 15, 2019 - Xamarin.Mac 5.2.1.15

This version is included in the Visual Studio 2017 version 15.9 SR7 release.

Issues Fixed

  • 10488 - [bcl] HttpWebRequest throws an uncatchable task exception

January 14, 2019 - Xamarin.Mac 5.2.1.13

This version is included in the Visual Studio for Mac 7.8 Preview 2 release.

Enhancements

  • GitHub 5324 - [mmp] Add support for mono 5.18

December 11, 2018 - Xamarin.Mac 5.2.1.12

This version is included in the Visual Studio 2017 version 15.9 SR4 release.

Issues Fixed

CVE-2018-8292 | Xamarin.Mac Information Disclosure Vulnerability

An information disclosure vulnerability exists in Xamarin.Mac when authentication information is inadvertently exposed in a redirect when the CFNetworkHandler or MessageHandler for HttpClient are used. The NSUrlSessionHandler and the managed HttpMessageHandler are not affected.

An attacker who successfully exploited this vulnerability could use the information to further compromise the web application.

The security update addresses the vulnerability by correcting how Xamarin.Mac handles redirects.

November 28, 2018 - Xamarin.iOS 12.2.1.11

This version is included in the Visual Studio 2017 version 15.9 SR3 release.

Issues Fixed

  • 5158 - [bcl] Incomplete System.Threading.Tasks.Extensions Facade

October 2, 2018 - Xamarin.Mac 5.2.0.0

This version is included in the Visual Studio 2017 version 15.9 Preview 3 release.

Enhancements

  • 693034 - Include Xcode 10 support (SDK, API and tools) from Xamarin.Mac 5.0

Issues Fixed

  • 3976 - [mmp] Add automatic detection of NetworkExtension.framework usage

September 11, 2018 - Xamarin.Mac 4.8.0.22

This version is included in the Visual Studio 2017 version 15.9 Preview 2 release.

Enhancements

  • 4133 - [foundation] Add more useful information inside NSErrorException.Message property
  • 4271 - [runtime] Make exception marshaling work with system mono
  • 4308 - [open source] Fix resetting a README dependency when the hash exists, but the branch does not
  • 4442 - [open source] Update runtime.h to fix build errors with Embeddinator 4000
  • 4569 - [mmp] Show a nice error if user tries to build a 32-bit app with Xcode 10

Issues Fixed

  • 3724 - [debugger] Cannot step into the NSUrlSessionHandler.cs code
  • 4130 - [runtime] Always release blocks on the main thread (crash in WKWebView)
  • 4235 - [msbuild] Fix error MT0099 : Internal error : Not all assemblies for Xamarin.Sdk have link tasks
  • 4237 - [msbuild] Fix MT2002: Failed to resolve assembly: ...
  • 4254 - [objcruntime] Class.GetHandle not handle byref types (crash linked to becomeFirstResponder)
  • 4384 - [mmp] Fix MissingMethodException when mono 5.12 is used
  • 4422 - [mmp] Fix no type or protocol named 'MTKViewDelegate' after adding mtouch argument --registrar:static
  • 4594 - [mmp] Ensure additional arguments are last (and can override msbuild arguments from response file)

Integrated Mono Features/Fixes

Xamarin.Mac uses a customized runtime and base class libraries (BCL) from Mono 2018-04.

August 21, 2018 - Xamarin.Mac 4.8.0.1

This version is included in the Visual Studio 2017 version 15.9 Preview 1 release.

Integrated Mono Features/Fixes

Xamarin.Mac uses a customized runtime and base class libraries (BCL) from Mono 2018-02.

Additional information can be found in Mono release notes.

API Diff

This document contains a complete list of the API changes since the Xamarin.Mac 4.6 stable release.

Feedback welcome

Your feedback is important to us. If there are any problems with this release, check the Xamarin.Mac 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.Mac is based on the following open-source repositories: