Issue #20388 has been updated by tenderlovemaking (Aaron Patterson). Sorry, I should be more specific. The code sample returns `nil` before 4f77d8d3, and since 4f77d8d3 it will raise an exception (it tries to mutate the `args` array) ---------------------------------------- Bug #20388: super + ruby2_keywords isn't working https://bugs.ruby-lang.org/issues/20388#change-107434 * Author: tenderlovemaking (Aaron Patterson) * Status: Open * Assignee: jeremyevans0 (Jeremy Evans) * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- ```ruby class A def process action, ... end end class B < A def process method_name, *args args.freeze super end ruby2_keywords(:process) end p B.new.process(:foo, bar: :baz) ``` The above code started breaking at revision 4f77d8d3 -- https://bugs.ruby-lang.org/