@cadr This commit adds a new argument to make-instance: https://github.com/racket/racket7/commit/6c79bf5b767fba503120fb6900370841b0c9e050

… and I’m guessing that the change is relevant to you

@mflatt Ah I see that’s like the mode argument in instance-set-variable-value!, thanks for letting me know, I’ll update Pycket accordingly