changes after kernel update

	I updated one of my systems tonight, to 

FreeBSD 7.0-CURRENT #0: Sat Jan 10 23:05:28 EST 2009 i386 

	After rebooting with the new kernel, things were different.
	0) uname says 7.0 ... but it should say 8.0 - right?  Where is
this set?
	1) there was a bunch of stuff that flashed by before the boot
menu showed up.
	2) I was obliged of change disk specifications from (e.g.)

	/dev/da0s1a

	to

	/dev/da0a

	However after making those changes in fstab and rc.conf,
everything works as before.  (So far.  ;-)
	I see noting about this in UPDATING.  Where can I find out more
information?

	Respectfully,


				Robert Huff