I already /msg'd AnomalousMonk about it but maybe a post is a better idea: v5.26 had a section on Truth and Falsehood but not v5.28. I suppose this information is still supposed to be found somewhere in the documentation, but I have no idea where...

Edit: it is in perldata

In reply to Re^2: methods for dealing with zero '0' as a string or char by Eily
in thread methods for dealing with zero '0' as a string or char by boleary

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