What is the recommended version of PHP for the CWP7 Pro application?

[VPREATR]

I've been using CWP7 Pro for some time and originally the CWP application installed and utilizes version v5.6.30 of PHP, although that was over two years ago and I wanted to inquire what the recommended/ideal version of PHP is for the application; does that still remain v5.6.30 or has it changed to a newer version?

(FWIW, this isn't about the PHP versions available to user/domain/websites, but solely the CWP application itself).

Application Version
PHP version: 5.6.30 [PHP Switcher]

PHP Version Switcher v2
You are running PHP version: 5.6.30

I'm looking for forward to your responses.

Thanks!

[n8v8r]

Not sure it really matters for CWP. If there were features depending on a newer version of PHP it would probably have been upgraded thus.

The PHP switcher is likely more for other applications running on the server. I am currently on PHP 7.1.9