T-Mobile is sending out updates for several Samsung Galaxy phones on its network, covering all the major flagship devices Samsung has released this year. This includes the Galaxy S6, Galaxy S6 Edge, Galaxy S6 Edge+, and Galaxy Note 5.
The update is pretty minor, but it does enable the video calling feature in T-Mobile's advanced messaging. The S6 Edge+ and Note 5 already have video calling, but they're getting slight interface tweaks in its place.
Not a major update, but expect it to start rolling out to your phone if you have any of these newer Samsung phones on T-Mobile's network.
Galaxy S6
Galaxy S6 Edge
Galaxy S6 Edge+
Galaxy Note 5