Did you deliberately misquote me? I specifically said version 5.12 of the interpreter wasn't sufficient.
Since 5.10, Perl has been changing in backwards incompatible ways. To get the latest version of the language, you need to request it using use 5.010; or similar.
Did you mean you found a convoluted way (which I did not understand) to describe use 5.012;
? If you meant that, why didn't you say so?
Not that I agree use 5.YYY; switches to different versions of the language. Or that without using use 5.XXX; you won't be getting any of the latest version. *Most* changes of the language you'll get with, or without use 5.XXX. (Smart match for instance, all of the regexp changes, new versions of Unicode, etc).
Either you didn't express yourself properly, or you just advocated that strict var checks be moved to the linter.
First of all, strictness checks aren't warnings. Second, due to exporting, one actually needs to run code to know what's being exported - and hence whether strict vars will complain or not.
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