<Li> Silverlight 4--On November 18, 2009, at the Professional Developers Conference in Los Angeles, Microsoft Corporation unveiled a Beta version of Silverlight 4 . The final version was released on April 15, 2010 (along with Silverlight 4 tools for developers). New features in Silverlight 4 include: Support for Google's Chrome browser, webcam and microphone, printing, more mouse support, new notification support to send messages to users, new and enhanced controls (e.g., RichTextBox, DataGrid), theming of controls, rendering HTML, better localization, etc...</Li> <Ul> <Li> Silverlight 5--The official release was made available to download officially on December 9, 2011 . New features included GPU accelerated video decoding, 3D graphics, playback speed controls, remote control, and 64 - bit support . </Li> </Ul> <Li> Silverlight 5--The official release was made available to download officially on December 9, 2011 . New features included GPU accelerated video decoding, 3D graphics, playback speed controls, remote control, and 64 - bit support . </Li>

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