DragonflyBSD v5.0 released
lists.dragonflybsd.org
lists.dragonflybsd.org
> Preliminary HAMMER2 support has been released into the wild as-of the 5.0 release.
DragonflyBSD itself is officially supported on x86_64.
What about GNU Hurd?
Scroll down to "All changes since DragonFly 4.8"
Or the 3 links in the 3rd paragraph...