This update improves battery life during sleep.
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 – Firmware – 188.8.131.52
There are no prerequisites for installing this update.
You must restart the computer after you apply this update.
Update replacement information
This update doesn't replace a previously released update.
Surface Pro Embedded Controller Firmware (v184.108.40.206)