https://www.bleepingcomputer.com/news/microsoft/microsoft-surface-book-2-getting-new-firmware-update-with-improvements/

Microsoft has officially rolled out the August 2018 update for the Surface Book 2, which went on sale last year. The latest firmware update is available for Surface Book 2 devices that run Windows 10 Fall Creators Update or Windows 10 April 2018 Update.

According to the changelog published by Microsoft, Intel's display driver on Surface Book 2 is getting an update to version 24.20.100.6136 to improve system stability. The update also includes improvements for battery performance and keyboard backlight.