Module::CoreList::Utils - what utilities shipped with versions of perl
use Module::CoreList::Utils;
print $Module::CoreList::Utils::utilities{5.009003}{ptar}; # prints 1
print Module::CoreList::Utils->first_release('corelist');
# prints 5.008009
print Module::CoreList::Utils->first_release_by_date('corelist');
# prints 5.009002