> Is there any documentation (e-mail threads, commit messages, etc.) for
> the changes made to the header files for DragonFlyBSD from FreeBSD? If
> not, what is the best way to get up to speed on the changes?
If you're looking to browse specific links, there's the commits list
archive on http://leaf.dragonflybsd.org/mailarchive or the web interface
to the source code at http://www.dragonflybsd.org/cvsweb .