The Oreo update for the Samsung Galaxy S8 is currently in testing with a public beta released in the UK, US and South Korea last week. Now the company is already seeding the first update for the beta firmware squashing a bunch of bugs discovered by the testers. The update also brings the October security patch and a couple of new features. The clock on the Always On Display got new styles, while the notification shade gained transparency settings. Some stability tweaks for the Launcher and the company's DeX station are also part of the 610MB update. The beta test is yet to start...
Source: https://www.gsmarena.com/samsung_galaxy_s8_oreo_beta_updated-news-28207.php