Microsoft Surface Laptop 3 (with AMD processor) is receiving the July 2020 Firmware update.
The updates are available for Surface Laptop 3 devices running Windows 10 May 2019Â Update, version 1903, or greater.
With the latest build, Microsoft is improving the external monitor resolution support, system stability and also enabling Surface Dock 2 update.
| Windows Update History Name | Device Manager Name | Version and Update |
| Advanced Micro Devices, Inc. – Display – 26.20.12055.1000 | AMD Radeon (TM) Vega 9 Graphics – Display Adapter / AMD Radeon (TM) Vega 11 Graphics – Display adapters | 26.20.12055.1000 Improves external monitor resolution support. |
| Surface UEFI – Firmware -1.2449.140.0 | Surface UEFI – Firmware | 1.2449.140.0 Improves system stability. |
| Surface – System – 6.83.139.0 | Surface Integration – System devices | 6.83.139.0 Addresses issues related to Boot Configuration options and improves error correction. |
| Advanced Micro Devices, Inc. – System – 1.0.27.0 | AMD Micro PEP Device – System devices | 1.0.27.0 Improves battery life. |
| Surface – Extension – 5.5.0.0 | 5.5.0.0 Enables Surface Dock 2 update. |
As always, Surface updates are released in stages and not every Surface will receive the update at the same time, but it’ll be delivered to all devices.
To manually check for updates, head to Settings > Update & security > Windows Update and check for updates.
Alternate download
Surface Laptop 3 with Intel Processor
https://www.microsoft.com/download/details.aspx?id=100429
Surface Laptop 3 with AMD Processor
https://www.microsoft.com/download/details.aspx?id=100428
Source: Surface update history
 July 2020 Firmware Update improves external monitor resolution support; Full changelog and download links.){kind=link}