Microsoft released its Surface Book 3 in May of this year, and as usual, it got a round of day one firmware and driver updates when it came out. It didn't get any updates after that, until this past weekend. In a batch of updates dated September 4, the Surface Book 3 received fixes for a wide range of issues. Here's the full changelog:

Windows Update History Name Device Manager Name Version and Update
Intel(R) Corporation – System – 1.0.1287.0​ Detection Verification – System devices

1.0.1287.0​

  • Improves audio reliability.
Surface – Extension – 1.58.137.0​ (Surface Book Base v3 Firmware Update) – no Device Manager notes

1.58.137.0​

  • Improves Surface Dock 2 reliability and addresses system bugcheck.
Surface – Firmware – 10.11.139.0​ Surface System Aggregator – Firmware

10.11.139.0​

  • Resolves the stability issues during low battery scenarios.
Intel(R) Corporation – System – 10.24.0.3694​ Intel(R) Smart Sound Technology (Intel(R) SST) Audio Controller – System devices

10.24.0.3694​

  • Improves device Sleep power consumption and addresses system bugcheck.
Intel(R) Corporation – System – 10.24.3694.245​ Intel(R) Smart Sound Technology (Intel(R) SST) OED – System devices

10.24.3694.245​

  • Improves device Sleep power consumption and addresses system bugcheck.
Surface – System – 2.14.137.0​ Surface System Telemetry Driver – System devices

2.14.137.0​

  • Facilitates power and thermal related data analysis.
Intel – Net – 21.80.2.1​

Intel(R) Wi-Fi 6 AX201 160MHz – Network adapters

21.80.2.1​

  • Improves Wi-Fi performance resuming from sleep and Miracast connection performance.
Intel – Bluetooth – 21.80.0.3 Intel(R) Wireless Bluetooth – Bluetooth

21.80.0.3

  • Resolves the issue with WiFi connection throughput and improves stability.
NVIDIA – Display – 26.21.14.4292​

NVIDIA GeForce GTX – Display adapters

26.21.14.4292​

  • Improves GPU stability and power consumption.
Dolby – SoftwareComponent – 3.20602.651.0​ DolbyAPO SWC Device – Software components

3.20602.651.0​

  • Improves device audio performance and stability, and addresses 3rd party app compatibility and performance.
Surface – System – 3.83.139.0​ Surface DTX – System devices

3.83.139.0

  • Improves connectivity and performance with USB Hub.
Surface – Firmware – 4.0.211.139​ 13 Inch – Surface Touch Firmware / 15 Inch – Surface Touch Firmware – Firmware

4.0.211.139​

  • Improves Touch and Pen stability.
Surface – Extension – 4.212.139.0​ (13 Inch – Surface Touch Pen Processor / 15 Inch – Surface Touch Pen Processor) – no Device Manager notes

4.212.139.0​

  • Improves Touch stability and improves pen inking when palm is also on screen.
Dolby – Extension – 5.224.130.56 (13 Inch – Dolby Device Extension) – no Device Manager notes

5.224.130.56

  • Fixes low volume output from internal speakers and improves audio reliability.
Dolby – Extension – 5.224.132.1​ (15 Inch – Dolby Device Extension) – no Device Manager notes

5.224.132.1​

  • Fixes low volume output from internal speakers and improves audio reliability.
Surface – System – 6.83.139.0​ Surface Integration Service Device – System devices

6.83.139.0​

  • Improves Surface Dock 2 reliability.

The changelog lists the updates as being available for Windows 10 version 1903 and higher; of course, there are no Surface Book 3 PCs that have Windows 10 version 1903, being that the product shipped over a year after version 1903 did.

Being that there haven't been any firmware or driver updates since May, you'll want to grab these updates. For example, Nvidia releases new Game Ready drivers for its GeForce GPUs pretty frequently, but Microsoft doesn't give you an easy way to get those (most other OEMs pre-install GeForce Experience), so this is your first GPU update in a while. And of course, there are a bunch of other fixes too.