Microsoft recently introduce Silverlight 4, in Silverlight 4 Microsoft have remove old bugs and introduce some new features, in old version of Silverlight there is no support of print the application and double click event, now these all features are available in Silverlight 4 and more control and function are also given.
New features and improvements contains the following sections
- Controls
- Out-of-Browser
- Media
- Networking
- Printing
- User Interface
- XAML
- Data
- Application Model
- Core
- Silverlight Designer
- Windows Phone Platform Support
- Related Topics
For more details and information click here MSDN What's New in Silverlight 4.
Reference: Silverlight 4 : The Official Microsoft Silverlight Site