Upgrading 7.1 to 7.3, use 7.2 as a safe step?

[Nerius Landys]

For me, time can be spared, but errors should be avoided at all costs.
I have upgraded FreeBSD before, for example 7.0 -> 7.1.  I use the
buildworld/buildkernel procedure.
I now have a 7.1 system.  Should I upgrade to 7.2 and then to 7.3, or
is it safe to go directly from 7.1 to 7.3?

- Nerius

P.S. I will also be upgrading 8.0 to 8.2 on another system, and assume
the answer you give can be applied there as well.