Following Sprint and Verizon's Galaxy S4 Android 4.3 updates last week, today it's the turn of the US Cellular model to get the updated version of the OS. The update to firmware version R970VXUAMJA is rolling out to USC-branded devices starting today, bringing Galaxy Gear smartwatch support and Samsung's KNOX enterprise security suite alongside the newer OS version. Samsung's changelog also lists updates to various bundled apps too, including Mobile TV, Slacker Radio and Amazon Shopping.
If the recently-leaked update timetable continues to prove accurate, we're looking at 4.3 updates for AT&T and T-Mobile's Galaxy S4s following around Nov. 13 and 18 respectively.
Source: Samsung; Thanks, Luke!