n. (from dark matter, darknet, etc and CPAN)

  1. The private legacy software written in Perl with which Perl 5 must remain backwards compatible.

Compare the mountains of corporate Visual Basic apps with which Windows must maintain compatibility, at high cost.

Not that it shouldn’t be done, we need not burden ourselves with bad practices forever, but deprecation cycles and dealing with dormant CPAN modules and code in the DarkPAN means it will take time. —David Landgren, “This Week on perl5-porters - 6-12 January 2008”

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