14 DAY TRIAL // T-Mobile was the first carrier to deploy Android 5.1.1 Lollipop update for Samsung Galaxy S6 and Galaxy S6 edge. The Magenta operator was followed soon by other carriers, including US Cellular.
It's also worth mentioning that Samsung is now rolling out Android 5.1.1 Lollipop to Galaxy S6 and Galaxy S6 edge units globally, but since the deployment is staged, it will take some time until it reaches all devices.
Now, according to US Cellular, the new software update build G920R4TYU2BOF7 (G925R4TYU2BOF7 for Galaxy S6 edge) should upgrade the phones to Android 5.1.1 Lollipop, but it will also add some new features and improvements.
Even though the carrier has yet to post an official changelog for this update, we already know that Android 5.1.1 Lollipop brings some new camera improvements to Galaxy S6 and Galaxy S6 edge.
For example, they get lower ISO values and raw DNG format support for state-of-the-art pictures. Some other camera enhancements should be included as well.
Apart from that, Samsung is expected to have added some tweaking to its TouchWiz UX, but without an official changelog, we can't confirm what changes the South Korean company may have included in this update.
Keep in mind that the update is pushed OTA (over the air), but it's also available through Smart Switch">Samsung Smart Switch desktop software.