The big news is that Perl 6 has grammars. Copying something that OCaml (camlp4) has had for over a decade. Arguably influenced by LISP which has had non-grammatical macros for decades. Being able to modify the grammar of a language is fantastic: see the bitmatch and micmatch projects. Welcome to the party, Perl 6 users. I wonder if one day we’ll see type inference, phantom types, the ability to get close to the metal, real GC, etc etc?