Last week Microsoft released the September 2021 update for the Surface Duo. Unfortunately, this is not an Android 11 update, this month’s update is just the September Android security and comes in at just 76.18mb.

Maybe this week during Microsoft’s What’s next event we will get details of upgrade plans for the original Duo alongside of a Surface Duo 2 announcement.

Software version Update info
2021.817.35 (North America)

2021.817.37 (Europe)

This update:

  • Addresses scenarios outlined in the Android Security Bulletin – September 2021.


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