RELENG_4 tag in stable-supfile on 5.2.1 box - change it to RELENG_5?

[W C]

I would like to upgrade my 5.2.1 box from source with cvsup to 5-STABLE.

Do I need to change the tag to RELENG_5 for FreeBSD 5-STABLE?
Or can I cvsup a new stable-supfile?

thanks,

woody

p.s.  sorry if hotmail is sending HTML, I know, I know, all you pine users 
hate it.

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