Apple has used the force-upgrade path which you cannot opt out of (at least not easily) and which is permitted by their TOU, exactly twice, both to address seri

Apple has used the force-upgrade path which you cannot opt out of (at least not easily) and which is permitted by their TOU, exactly twice, both to address serious security vulnerabilities. Once for this problem, and once for the NTP security bug in 2014. That is it. https://support.apple.com/en-us/HT204425 https://support.apple.com/en-us/HT204425