That sounds right[1], but it's very possible that 11.1 will get it.

[1] https://wiki.freebsd.org/WhatsNew/FreeBSD11

Meanwhile OpenBSD has had Haswell support since 5.5, Broadwell/Bay Trail since 5.9.

http://www.openbsd.org/55.html

http://www.openbsd.org/59.html

That they do, and that's quite admirable (and important, since nVidia won't port their binary blob drivers; and nouveau doesn't run on OpenBSD either.)

Out of the box ZFS boot is still more important to me than getting rid of my Radeon card, though.

How does NetBSD fare in that regard?

Haswell is in 11.0, anything newer than that needs to use out of tree.