| Microsoft Silverlight 2 | 10/10/2008 | 10/12/2010 | Review Note | | Support for releases known as Tools ends no less than 12 months following the notification date. Customers are encouraged to promptly update to a later release to continue to receive support, including security updates. |
| Microsoft Silverlight 3 | 7/9/2009 | 4/12/2011 | Review Note | | Support for releases known as Tools ends no less than 12 months following the notification date. Customers are encouraged to promptly update to a later release to continue to receive support, including security updates. |
| Silverlight 4 | 4/15/2010 | 1/8/2013 | Review Note | | Support for releases known as Tools ends no less than 12 months following the notification date. Customers are encouraged to promptly update to a later release to continue to receive support, including security updates. |
| Silverlight 5 | 12/9/2011 | 10/12/2021 | Review Note | | Support for releases known as Tools ends no less than 12 months following the notification date. Silverlight 5 will support the browser versions listed on this page through 10/12/2021, or though the support lifecycle of the underlying browsers, whichever is shorter. As browsers evolve, the support page will be updated to reflect levels of compatibility with newer browser versions. |
