How do other people work on concurrent versions of the same module?

Update: I'm trying to compare the results of running the old version(0.71) and current version (0.72) of Devel::Size side by side to determine where the differences arise.

Perl won't let you have both installed concurrently, nor easily back the later out in favour of the earlier.

My workaround this impasse is (as most things seem to be with Perl development), clumsy and laborious. I wondered how other people have tackled the problem which must have come up many times in the past.

In reply to Module development: concurrent versions (Updated) by BrowserUk

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