Should I install this update?
- This update was released on December 12, 2014 and offers a new build (version 5.1.31211.0) of Microsoft Silverlight for users of recalled version 5.1.31010.0. For more information about Silverlight, go to the What is Silverlight? section.
- This update is included in current Silverlight installers. If you do not have Silverlight installed, the update will be offered to you on compatible systems by Microsoft Update.
Improvements in this update
Fixes an issue that generated errors when you tried to play Microsoft PlayReady Digital Rights Management (DRM) content in Silverlight version 5.1.31010.0.
How to obtain this update
This update is available from the following sources.
Microsoft UpdateThis update is available from Microsoft Update. If you have an earlier version of Silverlight installed, this update will be offered as "Update for Microsoft Silverlight (KB3011970)."
Silverlight update information
Restart requirementYou do not have to restart the computer after you apply this update.
Note If you have had an earlier version of Silverlight installed, or if you are using Mozilla Firefox, you must restart your browser.