Arc can run on the latest version of Racket. You have to use Arc 3.1 - that build is a bit buried on the site: http://arclanguage.org/item?id=10254 http://arcla

Arc can run on the latest version of Racket. You have to use Arc 3.1 - that build is a bit buried on the site: http://arclanguage.org/item?id=10254 http://arclanguage.org/item?id=10254