Currently, there are two runtimes available for users to experience Silverlight content.
- Microsoft Silverlight 1.0
- Microsoft Silverlight 1.1 Alpha September Refresh
Both runtimes support rich media capabilities and enable fast, cost-effective delivery of high-quality audio and video to all major browsers including Firefox, Safari and Internet Explorer running on the Mac or on Windows. The designer experience remains largely the same for both runtimes as well. The main difference resides in the developer experience. The Silverlight 1.1 Alpha runtime introduces support for.NET languages such as Visual Basic and Visual C#.
The Features Matrix below provides an overview of which runtime is required when viewing Silverlight applications.
Silverlight Runtimes – Feature Matrix
Features |
Silverlight 1.0 |
Silverlight 1.1 Alpha September Refresh |
2D Vector Animation/Graphics |
Yes |
Yes |
AJAX Support |
Yes |
Yes |
Cross-Browser (Firefox, IE, Safari) |
Yes |
Yes |
Cross-Platform (Windows, Mac) |
Yes |
Yes |
Framework Languages (Visual Basic, Visual C#, IronRuby, Ironpython) |
No |
Yes |
HTML DOM Integration |
Yes |
Yes |
HTTP Networking |
Yes |
Yes |
Isolated Storage |
No |
Yes |
JavaScript Support |
Yes |
Yes |
JSON Web Services |
No |
Yes |
LINQ to Objects |
No |
Yes |
Managed Control Framework |
No |
Yes |
Managed HTML Bridge |
No |
Yes |
Managed Exception Handling |
No |
Yes |
Media – Content Protection |
No |
Yes |
Media – 720P High Definition (HD) Video |
Yes |
Yes |
Media – Audio/Video Support (VC-1, WMV, WMA, MP3) |
Yes |
Yes |
Media – Image Support (JPG, PNG) |
Yes |
Yes |
Media Markers |
Yes |
Yes |
Rich Core Framework (e.g. Generics, collections) |
No |
Yes |
Security Enforcement |
No |
Yes |
Silverlight ASP.NET Controls (asp:media, asp:xaml) |
Yes |
Yes |
Type Safety Verification |
No |
Yes |
Windows Meda Server Support |
Yes |
Yes |
XAML Parser (based on WPF) |
Yes |
Yes |
XMLReader/Writer |
No |
Yes |
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