• The latest features and API requires Xcode 8.3 and the bundled iOS, tvOS and watchOS SDKs;
  • Apple Xcode 8.3 requires a Mac running OSX 10.12 (Sierra) or newer;

What's New

This release is built upon our open sourced SDK, using the d15-4 branch and is based on Mono 5.2 (2017-04).

This is mostly a bug fix releases as most engineering efforts are to support Xcode 9 this fall.

Bug Fixes

  • 56345 - [msbuild] Properly generate dSYMs for WatchKit2 appex's
  • 56452 - [jit] Optimize ldloc+ldfld operations for valuetypes, so they don't require making a copy of the valuetype
  • 57266 - [mtouch] Normalize strings that refer to assemblies and their paths before comparing them
  • 57764 - [msbuild] Don't define IOS for tvOS binding projects
  • 57826 - [mtouch] Fix same symbol used in assemblies with/without dlsym
  • 57833 - [mtouch] Check for __Internal p/invokes after processing for exception marshaling
  • 57919 - [bcl] Dynamic object is not supported
  • 58114 - [llvm] csc (Rolsyn) produce fault clauses that the llvm backend does not support

API diff

The following documents contains a complete list of the API changes since our previous stable 10.10 release:

Xamarin Workbook

If it's not already installed, install the Xamarin Workbooks app first. The workbook file should download automatically, but if it doesn't, just click to start the workbook download manually.