Owners of the Surface Pro 4 and Surface Book will want to check for new updates waiting on Microsoft's servers. At least three updates are available for the Surface Book and Surface Pro 4.

The three updates, one of which requires a reboot, are the following:

  • Microsoft driver update for Surface UEFI
  • Microsoft driver update for Surface Integration
  • Microsoft driver update for Surface Integration Service Device

UEFI stands for Unified Extensible Firmware Interface and is basically the BIOS/firmware equivalent on newer Surface machines (Surface Pro 4, Surface Book). That update will require a reboot to install the firmware, and this could be considered a relatively important update.

The other two updates are much broader as they can touch everything from storage to display to sleep/hibernate performance. Until Microsoft posts a detailed changelog, we'll just have to wait and see what they do or fix. The changelog should appear on the official Surface Update History page in the next day or so.

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Update: Some users are reporting that this may fix a bug we weren't aware of related to stuck CPU scaling on the Surface devices following the Anniversary Update.

Update 2: We had to reboot our Surface two times for the full installation to take effect. We were only prompted for the first reboot, so make sure you do a second one to be sure.

Update 3: Microsoft has now posted the changelog, which we'll repost below

August 30 Release

  • Surface Management Engine - Improves stability and performance when you change between power states.
  • Surface UEFI - Improves stability and performance when you change between power states.
  • Surface Integration - Improves the device usability and battery life.
  • Surface Integration Service Device - Makes sure the default Balanced power plan is set correctly when the operating system is updated.

Those in the Release Preview may also see a cumulative update to 14393.105.

We should also note that the driver/firmware updates do not appear to be tied to any Insider builds. We saw the updates on Production, Release Preview, and Fast Ring.

Thanks, Wendell H.and Brian G., for the tips!

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