If you search on CPAN and find a module which also has its own distribution as well as being in the "perl" distribution then that is dual-life. There's also a handy list on github.

If you are writing a custom CPAN client then I would suggest you simply ignore this. Dual-life modules should be treated by the client just the same as anything else on CPAN. Purely core modules shouldn't be updated by the client. Simple.

🦛

In reply to Re^3: Upgrading core modules by hippo
in thread Upgrading core modules by Anonymous Monk

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