This is definitely the best option.

However, we'd run out of CPAN namespaces though if authors start renaming modules upon realizing they made a poor design decision in the past.

Which begs the question: how to minimize the damage from a possible bad decision in the first place? I think there should be some rules of thumb.

In reply to Re^2: Sane deprecation policy for a CPAN module? by Dallaylaen
in thread Sane deprecation policy for a CPAN module? by Dallaylaen

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