All the major carriers in the US such as Sprint, Verizon, and T-Mobile have released Android Oreo update for the Galaxy S8. AT&T has been the only carrier whose Galaxy S8 units haven’t received the Oreo update. The carrier is now currently pushing out Android 8.0 update to its Galaxy S8 device and this means that we are having a very rare situation where all the Big Four US carriers release an Android update to their devices within days.