Calling `brew autoupdate'. This command needs to be refactored, as it is written in a style that is deprecated! Use inherits from `Homebrew::AbstractCommand' ( see https://docs.brew.sh/External-Commands ) instead. Please report this issue to the domt4/homebrew-autoupdate tap (not Homebrew/brew or Homebrew/homebrew-core), or even better, submit a PR to fix it: /opt/homebrew/Library/Taps/domt4/homebrew-autoupdate/cmd/autoupdate.rb:11