I use MacPorts to handle my installs of apache, php, etc. on my Mac. If you are using MacPorts on your Mac like I am, you may want to remember these handy codes to manage your MacPorts packages.
sudo port selfupdate
Update MacPorts to the latest version
List installed packages
sudo port upgrade outdated
Automatically upgrade outdated packages
With MacPorts, it really is that simple to install and then make sure you have the most current version. I love it, and I highly recommend it to everyone else.