The changes include a rollout of support for Windows Mixed Reality features. Others focus on system stability, with no security, battery life, or performance updates.

Surface Book 2 Firmware Update Changelog

Though none of the changes are major, they should help create a platform on which to build on. Users may note the following changes if they’re still running the Windows 10 Creators Update (1703):

Intel Corporation – Display – 22.20.16.4840: Intel(R) UHD Graphics 620 – 22.20.16.4840 improves system stability. Intel(R) HD Graphics 620 –  22.20.16.4840 improves system stability. Surface – Firmware – 387.1879.769.0: 387.1879.769.0 improves system stability. Surface – HID– 1.19.136.0: Surface Dial Filter – 1.19.136.0 improves system stability. Surface – System – 4.6.136.0: Surface Integration – 4.6.136.0 improves system stability. Surface – USB – 2.14.136.0: Surface UCSI Device, Universal Serial Bus controllers – 2.14.136.0 improves system stability.

Meanwhile, users of the Fall Creators Update (1709) have received support for Windows Mixed Reality. As the devices shipped with 1703, you’ll have to begin the upgrade to access those features. To enable them, Microsoft has made the following tweaks:

“NVIDIA GeForce GTX 1050 – Device adapters 23.21.13.8808 required to support Windows Mixed Reality features. NVIDIA GeForce GTX 1060 – Device adapters 23.21.13.8808 required to support Windows Mixed Reality features. Surface ACPI Notify Driver – System devices 5.15.136.0 required to support Windows Mixed Reality features. Surface Integration Service Device – System devices 4.14.136.0 required to support Windows Mixed Reality features.”

You should have been prompted to download the firmware update a few days ago via the usual methods. If not, you can grab them manually from the official site. The file will let you install drivers selectively if needed.

First Surface Book 2 Firmware Update Adds Windows Mixed Reality Support - 23First Surface Book 2 Firmware Update Adds Windows Mixed Reality Support - 14First Surface Book 2 Firmware Update Adds Windows Mixed Reality Support - 98First Surface Book 2 Firmware Update Adds Windows Mixed Reality Support - 56First Surface Book 2 Firmware Update Adds Windows Mixed Reality Support - 63