Surface Book 3 firmware update focuses on security and Battery Smart Charging

Surface Book 3 Review Tablet
Surface Book 3 Review Tablet (Image credit: Daniel Rubino / Windows Central)

What you need to know

  • A new firmware update is available for the Surface Book 3.
  • The update improves Battery Smart Charing reliability and also improves security.
  • You can grab the new update through Windows Update now.

Microsoft's Surface Book 3 has a new firmware update. The update is available for both the Surface Book 3 13.5-inch and the Surface Book 3 15-inch. As is the case with most firmware updates, this update doesn't include any new features. Instead, it includes several performance and security improvements. Some of the most significant changes include improvements to Battery Smart Charging reliability and and improvements to system stability.

Here's what's new for the Surface Book 3, as found in its release notes (opens in new tab):

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Firmware versionUpdate info
Intel – SoftwareComponent - 1.61.251.0Addresses security updates and improves system stability.
Intel – System - 2031.15.0.1743Addresses security updates and improves system stability.
Intel - Extension - 1952.14.0.1470Addresses security updates and improves system stability.
Surface – HIDClass - 3.31.139.0Improves system stability and addresses system bugcheck.
Surface - System - 6.105.139.0Improves integration between system services and addresses system bugcheck.
Surface – Firmware – 13.0.1594.2Addresses security updates and improves system stability.
Surface – Firmware – 9.101.140.0Addresses security updates and improves system stability.
Surface - Firmware - 10.204.139.0* Improves Battery Smart Charging reliability and improves kiosk mode.
Surface - Extension - 1.61.137.0* Improves Battery Smart Charging reliability and improves kiosk mode.
Surface - System - 3.85.139.0Resolves application uninstallation issues in low power state.

You can grab the latest updates for both the Surface Book 3 13.5-inch or Surface Book 3 15-inch through Windows Update now.

Sean Endicott
News Writer and apps editor

Sean Endicott brings nearly a decade of experience covering Microsoft and Windows news to Windows Central. He joined our team in 2017 as an app reviewer and now heads up our day-to-day news coverage. If you have a news tip or an app to review, hit him up at sean.endicott@futurenet.com (opens in new tab).