http://wccftech.com/how-to-update-galaxy-s6-to-android-8-0-oreo/

Google’s latest Android 8.0 Oreo may have been out for just over a month, we are already seeing developers testing them on devices as old as Samsung Galaxy S2! In today’s ROM-in-Testing feature, we are looking at a Galaxy S6 port based on Android Oreo. As the warning always goes, these ROMs are very early releases as is the operating system itself, hence flash them only if you want to test them and are ready for dealing with the bugs. Definitely not ready for daily use yet. Doesn’t matter? Well, here’s how you can update Galaxy S6 to Android 8 Oreo then.

What’s working?