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Any major difference between perl 5.00503 and perl 5.6?
Have a look at perldoc perldelta.
This will show you all changes from version to version.
(No link to the monastery library, because it has only version 5.005)
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
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