[umanwizard]

> so are they completely switching to clang or some other compiler.

Yes, they are -- your understanding was correct. The FreeBSD OS now exclusively builds with clang, and clang is also the compiler shipped with the system.

You can, of course, still install GCC, and many other packages, from the ports tree, but it is no longer part of the OS.

[emaste]

In fact for the vast majority of FreeBSD users (those on i386 or amd64), this happened years ago. Old GCC was kept in the tree for some Tier-2/Tier-3 archs (like MIPS), and is now removed because it's no longer used for those.