we have a sparc, running 1.5.1, and i want to bring it 
up-to-date with recent security fixes. i'm assuming i 
should upgrade to the latest 1.5.x...?

apologies in advance if this is a frequently asked question,
but: what's the recommended procedure for doing that?

can i just do i do a 'make build' as with netbsd-current, 
but use '-rnetbsd-1-5' for cvs checkout/update ?
is that safe?

or should i build a release (or get an up-to-date snapshot?),
and then start an install and pick 'upgrade'...?

if there's documentation on this, please point me to it. :-)

thanks.

- rob