The HTC One smartphone is available from all four major U.S. carriers, Verizon, AT&T, T-Mobile and Sprint to be precise. Customers who bought their units from these carriers are currently waiting for Android 4.4 KitKat update to drop, given the fact that KitKat is the latest version of Google's mobile operating system. While HTC is yet to say when carrier branded units are going to receive the update, the manufacturer revealed via Twitter that Android 4.4 has been released for U.S. unlocked as well as the developer edition variants of HTC One.
It didn't say what changes the update brings to Sense UI.
Ubergizmo , Developer Edition And U.S. Unlocked HTC One Receives Android 4.4 Update, Developer Edition And U.S. Unlocked HTC One Receives Android 4.4 Update