This was an experimental feature added in 5.14: https://metacpan.org/pod/perl5140delta#Array-and-hash-container-functions-accept-references and then removed in 5.24: https://metacpan.org/pod/perl5240delta#The-autoderef-feature-has-been-removed . One of the biggest problems with it is that there's no correct way to handle an object with both hash and array overloads defined. --- via perlbug: queue: perl5 status: new https://rt.perl.org/Ticket/Display.html?id=133109Thread Previous | Thread Next