I just found something interesting.. well, at least, fun:

Package namespace installed latest in CPAN file Perl::MinimumVersion 1.29 1.30 CHORNY/Perl-MinimumVersion-1.30.tar.gz

After installing Perl::MinimumVersion, I get:

Package namespace         installed    latest  in CPAN file
Perl::MinimumVersion::Reason      1.20      1.29  CHORNY/Perl-MinimumVersion-1.29.tar.gz

And if I ask to install Perl::MinimumVersion::Reason, yeah, of course, I get:

Package namespace         installed    latest  in CPAN…