Module::corelist is a perl module that can provide various information about the versions of perl modules that shipped with perl interpreter releases.

it contains a hash of hashes which is keyed on the perl interpreter version, as indicated in $]. the second level hash has pairs of modules and as well as their versions. it's possible that the version of a module is unspecified, in which case it will be undef.

other features include a hash providing iso formatted versions of the release dates, as gleaned from perlhist, and a hash that clusters known perl releases by their major versions.