Upgrade to PHP5 on Fedora Core

PHP List, My hosting service allows me enough access to do things like handle my own upgrades and full administrative access. Usually, because I am more of a web designer than an server administrator, I get their support staff to manage upgrades and installations. However, that does cost money, so I thought this time, if it's easy enough, I would try upgrading PHP myself. Currently my hosting service is running PHP Version 4.4.2, and I would like to upgrade to the latest stable build of PHP 5. At home, I use Ubuntu LTS, and to upgrade to PHP 5 I just used apt-get (with the Synaptic GUI) to upgrade. It was very easy. The hosting machine is using Fedora Core 1. I'm less familiar with Red Hat systems, but I do understand that yum is the equivalent of apt-get. So, I'm hoping I can just do: yum install php5 ... and be off and running. But because I don't really want to suffer any downtime, I hoped to get confirmation here on this list that this will work, and check if I need any other configuration options. If it makes a difference, I'm also running MySQL 5.0 on the system, and Apache 2. Is there anything else I need to know for a smooth upgrade to PHP 5? -- Dave M G