Microsoft closed the official Silverlight resource site and redirected it to the MSDN developer center spreading rumours about the end of Silverlight.
ComponentOne has released Studio Enterprise 2012 V3 with new controls for Windows 8, WinRT and existing control suites with support for localization RTF and Visual Studio 2012.
Microsoft announced the new Async Targeting Pack for Visual Studio 11 Beta, which will allow developers to use asynchronous programming features in .NET 4 or Silverlight 5 applications. These features were previously provided in the Async CTP, which is now deprecated.
Silverlight 5 has finally been released by Microsoft, with a lot of new features such as full 3d stack with XNA Libraries, several binding related enhancements, unrestricted File System access and more.