Microsoft have just released the June 2021 update for the Surface Duo. While it’s not Android 11 just yet it does include improvements. The build is 2021.525.62 (North America) and 2021.525.64 (Europe) and it includes the June 2021 Android security updates. Microsoft say it also improves device and UI stability.
In this video I look at the changes to the Surface Duo in June: