All new accounts are currently setup with PHP 7. New updates are applied for security, and performance. Some updates are known to break outdated scripts, so be sure to keep you site updated.
The version of PHP used for our hosing managed by our upstream provider Liquid Web and is updated as new versions are released.
If you are running an older version of PHP, you can upgrade through the control panel in the “Features” tab by selecting “Change Technology” under “Default Site Technologies”.