PHP 7.4 has been released. It’s the next PHP 7 minor release and should once again boost performance and improve code readability/maintainability.
All client accounts are being upgraded to the new version and will increase website speed.
Even if PHP 7.4 significantly boosts performance and improves code readability, PHP 8 will be the real milestone for PHP performance, as the proposal for JIT inclusion has already been approved.
You can check out the full list of features and additions on the official RFC page.
There's nothing for you to do, just sit back, relax and enjoy a speedier site.