> > "You will want to delete old binaries that were part of the version of NetBSD
> >  that you upgraded from and have since been removed from the NetBSD
> >  distribution."
> > 
> >  How exactly can I do this?
> 
>   Use "ls -ltr" and look at the time stamps.

 Thank you, I have better uses for my time.

 [I'm not criticising The Team or portmaster here; I just want that
  statement backed up by a practical suggestion ;)]