Silverlight 3.0 is the current version of Silverlight that was unveiled in March 2009 and will have a full release in July 2009. It features new capabilities for building rich internet applications (RIAs) including controls, search discoverability, .NET RIA services, improved performance, and accessibility. Silverlight 3.0 also allows applications to run outside the browser on the desktop and includes new graphics, media, and Expression Blend 3 features.