differences in USB support between FreeBSD 4.x and 5.x ?

[Marco Molteni]

[I sent the same message to usb-bsd at eleetbsd.org, but since that list
seems not very active, I am asking here too]

Hi all,

the subject says it all.

I am considering using FreeBSD for a robotics project, and I am
thinking of using 4.x for stability. But, since we will probably use
USB a lot, I am wondering if maybe 5.x is a better choice.

Any ideas, besides the "compare the USB source between 4.x and 5.x"
suggestion? ;-)

thanks
marco