While T-Mobile delayed the November security patch update for its Galaxy Note 4 variant, it seems like the carrier is making sure the December security patch reaches on time as it starts roll out for the Note 4 and Note Edge variants of the devices.
T-Mobile has begun rolling out the December security patch for Note 4 and Note Edge devices build firmware build numbers N910TUBS2DPL2 and N915TUBS2DPL2, respectively.
We don’t have an official changelog for the update yet but it should come with the usual bug fixes and stuff.
If you haven’t received the update yet on your T-Mobile Note 4 or Note Edge, be sure to go to Settings » About phone and check for system updates from there.
For Odin flashable firmware files, check out our Galaxy Note 4 Firmware and Galaxy Note Edge Firmware download pages.