How to PHP update -> version 5.5

Hello,



I'm new here and i've a problem.

I need to update to PHP 5.5 but I'dont know how.



I've tried

cd /usr/local/directadmin/custombuild

./build update

./build clean

./build php n



Now my PHP version is PHP 5.3.29



Thanks



Fons

How to PHP update -> version 5.5