This update enables support for new Surface Pro Type Cover and Surface Pro Signature Type Cover.
How to get this update
This update will be downloaded and installed automatically. It will be listed in the Windows Update history as follows:
Surface - Keyboard – 1.1.504.0
There are no prerequisites for installing this update.
You don't have to restart the computer after you apply this update.
Update replacement information
This update doesn't replace a previously released update.
Surface Type Cover Filter Device (v1.1.504.0)