It's not. I don't know what its history is. My girlfriend used it on
her computer when she was still at UBC and on ResNet, and it worked just
fine there. I installed the reference (ISC) DHCP software on my system,
and after some hacking on the scripts it uses for configuring things I'm
quite happy with it.
My experience with dhcpcd (vs ISC's dhclient) was that it was more
opaque that I like personally. It is likely fine in simple situations,
but I like something I can see the guts of more easily when things start
to get complicated. This impression could well be wrong, but that's how
things seemed at the time.
Brian.