Here's what's improved in today's Surface 3 firmware update

Earlier today, Microsoft released new firmware for the Surface 3. At the time, there was no changelog available, but now - over ten hours later - we finally know what's included in the update.

The new firmware is different depending on whether you're running Windows 8.1 or 10. Here's what got improved if you're on Windows 8.1:

Windows Update History Name	Device Manager Name
System Firmware Update – 8/8/2016	Surface System Aggregator Firmware v1.0.52500.0 improves proximity sensor for mobile broadband and Wi-Fi connections. Surface UEFI v1.51116.178.0 adds commercial UEFI features and improves stability of the on-screen keyboard. Intel(R) HD Graphics v20.19.15.4424 improves system performance in some applications. Surface Platform Power Driver v2.1.65.1 improves battery charging. Intel(R) USB 3.0 Host Controller Adaptation Driver v603.9600.2588.2097 improves USB device enumeration when the device resumes operation from sleep or hibernation.

Windows Update History Name

Device Manager Name

System Firmware Update – 8/8/2016

Surface System Aggregator Firmware

v1.0.52500.0 improves proximity sensor for mobile broadband and Wi-Fi connections.

Surface UEFI

v1.51116.178.0 adds commercial UEFI features and improves stability of the on-screen keyboard.

Intel(R) HD Graphics

v20.19.15.4424 improves system performance in some applications.

Surface Platform Power Driver

v2.1.65.1 improves battery charging.

Intel(R) USB 3.0 Host Controller Adaptation Driver

v603.9600.2588.2097 improves USB device enumeration when the device resumes operation from sleep or hibernation.

The version available for Windows 10 contains most of what you see above, but along with quite a bit more. For clarity, we'll include the entire changelog.

Windows Update History Name	Device Manager Name
System Firmware Update – 8/8/2016	Surface System Aggregator Firmware v1.0.52500.0 improve proximity sensor for mobile broadband and Wi-Fi connections. Surface UEFI v1.51116.178.0 adds commercial UEFI features and improves stability of the on-screen keyboard. Surface Pen Settings v12.0.303.1 improves the stability of the pen settings and prepares for the Windows 10 Anniversary Update. Intel(R) AVStream Camera v21.10586.6053.549 improves the stability of the camera. Intel(R) Imaging Signal Processor 2401 v21.10586.6053.549 improves the stability of the camera. Microsoft Camera Front v21.10586.6053.549 improves the stability of the camera. Microsoft Camera Rear v21.10586.6053.549 improves the stability of the camera. Surface Platform Power Driver v2.1.65.1 improves battery charging.
Intel Corporation driver update for Intel(R) HD Graphics	Intel(R) HD Graphics v20.19.15.4424 improves system performance in some applications.
For Verizon 4G LTE model only
Intel Corporation driver update for Surface IA7260 Firmware	Surface IA7260 Firmware Update v1544.02.00.28 improves modem stability.

Today's update will be the first since June 22, and even that was only for Verizon models running Windows 10. Before that, there was a small update on May 31.

Microsoft also confirmed back in June that the company will no longer be manufacturing the Surface 3 beginning in December. According to the original statement, inventory is already limited. This raised speculation as to whether or not a Surface 4 is in the works, but there have been no credible rumors.