https://www.theverge.com/2018/6/29/17519422/tmobile-texting-rcs-universal-rollout-starting-samsung-s7

T-Mobile has started rolling out support for the RCS Universal profile — a new messaging standard that’s supposed to make traditional texting look a bit more like chatting in a modern messaging app, complete with read receipts, typing indicators, and more.

The rollout, spotted by Android Police, is starting with Samsung’s Galaxy S7 and S7 Edge and is supposed to come to more Android devices later in the year. There are a million qualifiers here around how and when everyone will really get to use this, but this is still an important step toward improving the basic texting experience on Android.