Versions of .NET

Release 2.10.5

  • Released on 2011-08-24

Release notes


Mono is a portable and open source implementation of the .NET framework for Unix, Windows, MacOS and other operating systems.

Mono 2.10.5 is a minor update to Mono 2.10, Mono 2.10.1, Mono 2.10.2, Mono 2.10.3 and 2.10.4 based on the mono-2-10 branch of github. Mono 2.10.5 was released on August 24th, 2011.


  • Add support for reference instances of Interlocked.Exchange<T> to full-aot, similarly to Interlocked.CompareExchange<T>.

  • Added IObserver/IObservable to the MOBILE profile

Bug Fixes

  • Novell #445855: Timezone will be reflected if the system updates.
  • Xamarin #12, Novell #690357 and many other incarnations of the same bug: Fix a threadpool bug that would hang the threadpool activity under no load.
  • Xamarin #99: Fix in parsing assembly names.
  • Xamarin #149: Regex.Compiler is a no-op, for WP7 compatibility on the MOBILE profiles
  • Xamarin #171: LLVM backend fixes.
  • Xamarin #223: WindowsBase's System.IO.Compression fixed to work on Windows (invalid C calling conventions used)
  • Xamarin #227: Exit on unhandled exceptions only
  • Xamarin #263: Fixes debugging deadlock on Lion
  • Xamarin #280: Removes some LLVM passes that do not work
  • Xamarin #296: Provide an error message if an instance method is decorated with MonoPInvokeCallback
  • Xamarin #311: LinkedList.Clear improved
  • Fix the range of Random ().Next
  • Task optimization to avoid creating empty delegates
  • Use 'as' for casting certificate extensions since we already deal with null and malformed extensions will throw, hard to debug, ICE when we just want to ignore them
  • Fix TaskCreationOptions
  • g_log works under Android
  • Workaround broken Android C library, to make SGen reliable
  • TaskCompletionSource is now thread safe