If you're the early adopter sort who bought the original Surface Duo, you'll soon get an Android update — if not the one you'd expect in late 2021. Microsoft told The Verge in a statement that it expected to upgrade the first Duo to Android 11 "before the end of this year." The company didn't say what to expect with the update, although it wouldn't be surprising if some Surface Duo 2 features carried over to the older dual-screen phone.
Android 11 on the Duo 2 refines the multitasking experience, such as prioritizing the right-hand screen. Google's OS also includes generally improved support for dual-screen devices, potentially improving support for third-party apps. You might also see Microsoft iron out the Duo's still-buggy software, although that's not guaranteed.
The issue, as you might guess, is the timing. Microsoft is delivering Android 11 right as Google is close to releasing Android 12. Surface Duo owners will still be roughly a year behind their counterparts with conventional phones. That's understandable given the challenges of supporting a dual-screen device, but it won't be much consolation to Duo users wanting to try the latest Android features.