php is a good idea to make sure you're upgraded to 7.x. A lot of security and performance improvements. I'm on 7.3.13 and will be migrating to 7.4 soon. The main thing I'm concerned about is 7.4 compatiblity with my add-ons, but from the research I've done it should be pretty seamless. I've got 7.4 all loaded and update on my system -- just need to flip it over from 7.3.I am still on 5.x. What kind of page load improvement can you expect by switching to 7.x?
FYI, there's a potential bug in PHP 7.4.2 https://bugs.php.net/bug.php?id=79174 with scheduled fix in next PHP 7.4.3 release which can cause web apps like wordpress to prevent user logins.PHP 7.4 adoption isn’t particularly noteworthy at the moment. But that’s expected because it’s still relatively new. Many people understandably hold off a few releases before upgrading.
Pretty impressive they squashed the bug in less than 24hrs from the time it was reported.