Version 2.31

This update includes new features and improvements. Key changes include:

• Adds required Firmware support for Cellular and WiFi functionality under Windows.

Full Changelog: 2.30...2.31

This update is compatible with the following Surface Duo Models:

• Surface Duo America 128GB
• Surface Duo AT&T 128GB
• Surface Duo Europe 128GB
• Surface Duo America 256GB
• Surface Duo AT&T 256GB
• Surface Duo Europe 256GB

This update is compatible with the following installed software on Surface Duo:

• Android 10 (any firmware)
• Android 11 (any firmware)

This update requires an unlocked bootloader (via fastboot flashing unlock) and can be started by using fastboot boot boot.img

Guides for installing Windows can be found here