Android Oreo may not be the flashiest release, but it's got tons of under-the-hood changes. We recently discovered documentation in the AOSP source code that outlines one of these understated features, which has been dubbed "Rescue Party."
According to Google, Rescue Party will automatically kick in when it detects that "the system_server restarts more than 5 times in 5 minutes," or if "a persistent system app crashes more than 5 times in 30 seconds."
In other words, if your phone's stuck in a bootloop, or if you get the dreaded "SystemUI has stopped" message, Rescue Party will attempt to fix the issue.