You should always update your PHP version to the latest stable release in order to keep your website up to date with the latest security, speed and performance updates.
Whenever a new PHP version is released usually brings improvements in terms of security and performance and by using an older PHP version this could mean your website is less secure and the performance is lower.
Older versions of PHP are also depreciated, meaning they are no longer supported and any vulnerabilities will not be fixed leaving your website open to potential attacks.
By Hostziza support team
