> this new method is possible to work because FreeBSD switched from Heimdal Kerberos implementation to MIT Kerberos in FreeBSD 15.0-RELEASE … and I am really glad that FreeBSD finally did it.

What was the problem with Heimdal? The FreeBSD wiki says they used an old version, but why not upgrade to a newer version of Heimdal instead of switching to an entirely different implementation?

This [0] may provide a hint. Heimdal was developed outside of the US and not subject to export restrictions, unlike MIT. So perhaps in the beginning it wasn’t the package of choice to begin with.

And this [1] says for interoperability reasons.

[0] https://docs-archive.freebsd.org/doc/11.1-RELEASE/usr/local/...

[1] https://freebsdfoundation.org/project/import-mit-kerberos-in...