G'day Polyglot,

My thinking on this has varied over time: no core modules; no core pragmata; all modules.

My current thinking is:

• I state: "Requires a minimum of Perl vX.Y.Z and uses various modules available in that version."
• I list all CPAN modules (regardless of whether they're common or not).
• I list all 3rd-party modules and libraries.
• Modules that are required for Author only tests (e.g. Test::Pod) are listed separately in README(.md) but are excluded from Makefile.PL.

I concur with what ++hippo pointed out: "Just because they are in core today ...". For example:

$ corelist CGI

Data for 2023-09-20
CGI was first released with perl 5.004, deprecated (will be CPAN-only)
+ in v5.19.7 and removed from v5.21.0
[download]

And, of course, my thinking on this may change yet again at some future time. So, consider this as only suggestions and guidelines; then make your own choices.

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