New in 7.4 are the arrow functions and the $foo ??= 'bar; assignment. 7.2 brought class-based type hinting and return types, and everything else was included in 7.0 - including $too = $foo ?? 'bar'; and scalar type hinting.
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New in 7.4 are the arrow functions and the
$foo ??= 'bar;assignment. 7.2 brought class-based type hinting and return types, and everything else was included in 7.0 - including$too = $foo ?? 'bar';and scalar type hinting.