proper upgrade procedure from base to base

[Andriy Gapon]

What is the proper upgrade procedure to go, say, from f7 to f8 or from f8 to f10
(later)?
UPDATING says to follow instructions from 20070327, but those amount to "remove
old base port, install new base port". But then what about ports for xorg or gtk2
or alsa lib? They do not seem to get updated following this procedure.

Is there an automated way to upgrade all ports that have different versions for
different bases?

-- 
Andriy Gapon