Four years after release, Samsung has finally turned off the hall lights for owners of the Galaxy S8 and S8+. The two smartphones are now to be considered legacy devices and will no longer receive any scheduled security updates from Samsung. The Galaxy Note 8 and S8 Active are next in line for a similar treatment.
https://www.notebookcheck.net/No-more-updates-Samsung-ends-software-support-for-the-Galaxy-S8-and-S8.537438.0.html