During this month’s Patch Tuesday, Microsoft quietly rolled out a minor update to Silverlight which bumped the build number to Silverlight 5.1. This is the first update to Silverlight since Silverlight 5 was released in December of 2011.
This may as well be the last version of Silverlight, since the company has stated before that they were planing to move in a new direction. Although Microsoft has also stated that support for Silverlight 5 will be ongoing until the year 2021. So whats new in Silverlight 5.1?
- Fixes Security issue described in the following Microsoft Knowledge Base article: 2636927 MS12-034
- Fixes an issue where “Best Effort” Silverlight Digital Rights Management Output Protection levels failed on some machines.
- Fixed a failure to update OOB (out of browser) applications that are configured to use elevated trust when in browser.
- Fixes an issue where persistent license acquisition would fail when a customer upgrades from Silverlight 4 to Silverlight 5.
- Fixes an issue where certain character combinations can cause Silverlight application to crash.
- Fixes an issue where Silverlight would not play content which required Output Protection.
- Fixes a Silverlight DRM issue where some customers encounter hardware ID mismatch errors which can only be resolved by re-individualization.