Microsoft Silverlight

Also known as Silverlight, Windows Presentation Foundation Everywhere, WPF/E

application framework for writing and running rich Internet applications

Key facts

Developer: Microsoft Corporation
Initial release: September 5, 2007 ; 18 years ago ( 2007-09-05 )
Final release: 5.1.50918.0 (January 15, 2019 ; 7 years ago ( 2019-01-15 ) ) [ ± ]
Preview release: None [ ± ]
Operating system: Microsoft Windows , Windows Mobile , Windows Phone 7 , Mac OS X , and Symbian OS
Platform: ARM32 , IA-32 and x86-64
Type: Application framework , run-time environment and multimedia framework
License: Freeware
Website: microsoft.com/silverlight

via Wikipedia infobox

Official website

Silverlight 5 - Microsoft Lifecycle | Microsoft Learn

Silverlight 5 follows the Fixed Lifecycle Policy.

~17 min read

Article

Microsoft Silverlight is a discontinued application framework designed for writing and running rich internet applications, similar to Adobe's runtime, Adobe Flash. While early versions of Silverlight focused on streaming media, later versions supported multimedia, graphics, and animation, and gave support to developers for CLI languages and development tools. Silverlight was one of the two application development platforms for Windows Phone, but web pages using Silverlight did not run on the Windows Phone or Windows Mobile versions of Internet Explorer, as there was no Silverlight plugin for Internet Explorer on those platforms.

Microsoft terminated support for Silverlight on Internet Explorer 11 (the last remaining web browser still supporting Silverlight) on October 12, 2021.