When & Where to Check for Android 8.0 Oreo
It's extremely difficult to predict when you might see your update arrive because Samsung's roll outs vary year-to-year.
Unlike Apple's iOS roll outs, Samsung's releases take place over several weeks as it, and its carrier partners, work through kinks. There will be many different release dates so you'll need to keep your eyes wide open once the roll out process begins. Again, we expect it to start sometime in the near future.
Once the Galaxy Note 8 Android Oreo update starts rolling out, you'll want to occasionally check for the Oreo update via your device's Settings.
We also recommend watching Galaxy Note 8 update support pages, like this one at AT&T.