Doubt about update of PHP in the VPS...

#1
Hello, I have a Web mounted on XenForo with multiple AddOns. The web is in a VPS that runs CentOS and I want to update the PHP.

My doubt, if I update the PHP, can I have incompatibility problems or something? That is, can the Web stop working for this update?

I have CentOS 7 and I want to move from PHP 5.4 to 5.6


Greetings.
 
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