Galaxy S8 and Galaxy S8 + are getting new firmware version G95xFXXUCDUK1. The update will hit various markets in the next few days. It contains a November 2021 security patch that fixes dozens of privacy and security vulnerabilities.
Samsung launched the Galaxy S8 and Galaxy S8 + in early 2017 with Android 7.0 Nougat pre-installed. The devices received an update to Android 8.0 in 2018 and a One UI update based on Android 9 Pie in 2019.