then fix the core, or cajole CPAN authors as appropriate. See also the
C<-d> and C<-v> options for more detail. You'll probably want to use the
C<-c cachedir> option to avoid repeated CPAN downloads and may want to
-use C<-m file:///mirror/path> if you made a local CPAN mirror.
+use C<-m file:///mirror/path> if you made a local CPAN mirror. Note that
+a minicpan mirror won't actually work, but can provide a good first pass
+to quickly get a list of modules which definitely haven't changed, to
+avoid having to download absolutely everything.
To see which core distro versions differ from the current CPAN versions: