A port is the term used to describe a collection of files which makes it extremely
easy to install an application. As it says in the
FreeBSD Ports description: Installing an application is as simple as downloading
the port, unpacking it and typing make in the port directory. If you want an application,
the port is the Way To Go(TM)
So off you go to the ports tree to install your favourite port. It's quite easy. It's simple.
And you love that new application. And you want to know when the port is updated. That's where
we come in.
For more information about the Ports tree, see https://www.freebsd.org/ports/.