Microsoft To Do will stop supporting iOS 16 and macOS 12 starting late August to mid-September 2025. Updates will require iOS 17 or macOS 13 and later. Users on older versions won't receive updates, potentially affecting app performance and security. Organizations should encourage OS upgrades and update device policies.
Applies to: Microsoft 365 apps
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).