how to track 6.0 increments ?

[ke.han]

I have installed 6.0 and would like to follow important changes before 
something labeled 6.1 comes out.
What is the prescribed method for this?

I don't want to follow current or stable (I don't think).  I just want 
security fixes and other changes that might be termed 6.01 if there were 
such a thing.

To add to the question, while playing with my system, I did:

cvsup -L 2 -h cvsup.FreeBSD.org /usr/share/examples/cvsup/standard-supfile
...and then later...
cvsup -L 2 -h cvsup.FreeBSD.org /usr/share/examples/cvsup/stable-supfile

I have not recompiled the kernel or anything.  Just sync'd the source. 

So, how do I get things back to the 6.0 install source?  and how do I 
track things from this point?  I have read all the handbook has to 
offer.  Unfortunately, it is mostly general information.  I need a 
simple clear recipe.

thanks, ke han