Follow minimum PHP version recommanded for security
September 7, 2018 · 15:10 · Guillaume Focheux (idsquare)
Description
Just stick to the security recommendation of http://php.net/supported-versions.php to keep WordPress/ClassicPress secure and modern. It's not break WP/CP after if PHP isn't upgrade but just stop update WP/CP until new PHP version installed.
I think there are many similar thoughts shared in here https://petitions.classicpress.net/posts/6/minimum-php-version-should-be-7-x