Microsoft pushes new firmware update to Surface Pro 4 and Surface Book

Microsoft is pushing out a new firmware update for both the Surface Pro 4 and Surface Book this evening. It's not entirely clear what the update addresses on either device, as the Surface Update History page hasn't yet been updated with a change log.

Update: As of 9:45 PM ET Microsoft has posted the following changelog for the January 27 firmware update

Surface Pro 4 January 27 update

  • Surface Embedded Controller Firmware (v103.899.256.0) adds battery charging enhancements and thermal tuning.
  • Surface Fingerprint Sensor driver update (v2.2.10.6) improves accuracy.
  • Wireless Network Controller and Bluetooth driver update (v15.68.9037.59) improves access point compatibility and throughput on 5Ghz networks.

Surface Book January 27 update

  • Surface Embedded Controller Firmware (v88.899.256.0) adds battery charging enhancements and thermal tuning.
  • Wireless Network Controller and Bluetooth driver update (v15.68.9037.59) improves access point compatibility and throughput on 5Ghz networks.
  • Surface DTX driver update (v1.3.202.0) improves detection of the Surface keyboard to the clipboard.

In addition to the updates list above, the following additional update is available for Surface Book devices that have the optional NVIDIA GeForce GPU discrete graphics chip:

  • NVIDIA GeForce GPU update (v10.18.13.5914) improves stability.

For now, you should be able to grab the latest firmware on your Surface Pro 4 or Surface Book by checking Windows Update. Once Microsoft updates the Surface Update History page with details, we'll update this post. In the meantime, let us know if you happen to notice anything new after installing the update.

Thanks to Andrew for the tip!