It seems like quite a few manufacturers have been having trouble with Android Oreo update rollouts, and Samsung hasn’t been immune to this. Galaxy S8 units in Europe began receiving Oreo a few weeks ago, only to have the rollout halted due to some units randomly rebooting. The rollout has since recommenced, and Samsung has just made the update notes for the S8’s Oreo update available.
Update notes tend to be very long, as they go into pretty great detail regarding what exactly has changed.
Samsung’s official Oreo update notes for the Galaxy S8 are now live was written by the awesome team at Android Police.