Samsung is set to announce the reopening of its beta-testing program, Galaxy Beta, in the coming days, with users getting the chance to have a taste of Oreo prior to the final release scheduled for Q1 2018. The Galaxy Note 8 is snubbed for some reason, however.
https://www.notebookcheck.net/Samsung-to-open-Oreo-beta-program-soon-Note-8-snubbed.261350.0.html