This upcom­ing blog series by Perl core con­trib­u­tor Paul Evans promis­es to be very inter­est­ing, as it details what goes into devel­op­ing and com­mit­ting a new fea­ture into Perl itself. Evans recent­ly added the isa oper­a­tor to Perl 5.32, and will be describ­ing how to add a sim­i­lar (but fic­tion­al) fea­ture across 10 or more arti­cles. I’m look­ing for­ward to fol­low­ing along.