Leak: One UI 10 is a "complete overhaul" of Samsung’s interface, "unprecedented" changes per Ice Universe, on Android 18, possibly renamed Galaxy OS

A source close to Nokia Power User says Samsung is rebuilding One UI 10 from its design philosophy up: one contextual view combining calendar, location and conversations instead of hopping between apps, fewer taps and hidden menus, and smoother handoffs between phone, tablet and watch. Ice Universe confirmed via an independent source that the changes are "unprecedented" and arrive with the Fold9 (mid-2027). The Galaxy OS name is a separate, unconfirmed rumour, and Samsung has not commented.