Surprise, surprise! Samsung is super fast with the monthly security patch this time around and it's rolling out Google's August security fix for the Galaxy S8 and although the report doesn't say anything about the Galaxy S8+, we are pretty sure the latter isn't left out and it's getting the OTA update as well. The patch has been spotted in Germany with build number G950FXXU3CRGH and it requires a 418MB download. Aside from the security patch, the changelog mentions improvements for the Game Launcher. In any case, if you still don't see the update prompt, we recommend scanning for...
Source: https://www.gsmarena.com/samsung_galaxy_s8_getting_august_2018_security_patch-news-32591.php