PC-bsd, pfsense and freenas use patches from STABLE and HEAD to get things done, they can't use unpatched FreeBSD because it's not meeting their needs.
You seem to be working on 8.5, 9.4 or 10.2 and the others don't see a release until you're done with the one you're focusing on.
I'm using 9.3 right now. I had to wait until you were done with 10.1, hoping FreeBSD 9.4 will be next.
There's no way to plan anything around FreeBSD's release or development process. There's no telling if your new FreeBSD version is going to be stable or not, a driver from STABLE might be more stable than the same driver from RELEASE.
Many live systems are lagging behind with FreeBSD updates because updating those systems can lead to extended downtime due to potential bugs in drivers or a potential breakage caused by the merging of conf files.
Err... that's exactly what 10.1 is.
It's ok, we can agree to disagree.
I sometimes have to patch the sources with change sets from HEAD or STABLE to get bug fixes.
qlogic drivers had bugs in 10.0 which crash the system. Fully updated 10.0 is still affected.
The point holds for 10.1. A bug in 10.1 will only be fixed in 10.2.
My system is still crashing consistently with a fully updated 10.0.
It's only a question of time before I find something which crashes 10.1.
They don't bring the system down in Linux, either. Stop spreading FUD.
FreeBSD sometimes completely stops booting on your hardware or turns unstable for no good reason. (search on google for posts from people who can't boot FreeBSD 8.x on hardware which was running 6.x or 7.x without the slightest bug)
FreeBSD can crash your system because of an unstable driver after a major upgrade like 9.2 to 9.3.
You can see they're right, "FreeBSD doesn't take your system down like Linux", it's much worse.