Hi all,
Today I got weird signs all over my site and a message when trying to access admin panel that some functions was deprecated. In contact with my host I've got this message:

"The issue was caused by the fact that the server's default PHP version is PHP 5.3, while your application requires PHP 5.2 or lower to work properly.

I have now set the PHP version for your account to PHP 5.2 via the PHP Version Manager tool in cPanel and your website appears to be loading properly."

So what is the necessary steps to "upgrade" to PHP 5.3 or over?

//Morgan