Just remember if you do go thru the route of updating these phones using the 950U or 955U from XDA, you will have to revert back to Rogers stock rom that is Nougat to be able to officially update to oreo when rogers does get around to releasing it. I am running BRA8 Orea update on my note for the 950U model and it is running great no issues the only problem you will have is if you use wifi calling.
Rogers seems to be behind the curve when it comes to updates, not just on samsung phones. I also have LG V30 which has not received any updates, hopefully all will get it in time. A lot of patience is needed when dealing with updates and rogers.
Mobile Syrup have said that Canadian Oreo will be arriving for both the S8's and the Note8 before the end of March.
19 march galaxy s8
galaxy s8 on air fm radio
hope it will be enable on the 19 march oreo update