This update improves the stability of the pen settings and adds support for Windows 10 Version 1607 (Anniversary Update).
How to get this update
This update will be downloaded and installed automatically. It will be listed in the Windows Update history as follows:
System Firmware Update – 8/8/2016
This update is available for Surface 3 devices that are running Windows 10.
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 Pen Settings (v12.0.303.1)
Learn about the terminology that Microsoft uses to describe software updates.