Microsoft is now rolling out a number of firmware updates for its Surface Book, Surface Pro, and for the one offering LTE Advanced connectivity.
According to the changelogs the latest updates are dated February 13, and they deliver changes to improve system and battery stability on those devices.
Here’s the list with changes for Surface Book, Pro, and Pro LTE Advanced.
The new February 2018 firmware update for Surface Pro and Surface Book should download and install automatically. However, if you have not received the update on your Surface, then go to Settings > Update & security > Windows Update and try to force the download manually.