gistfile1.txt

  resources :subscriptions, only: [:index] do
    collection do
      delete 'destroy'
      get    'edit'
      put    'update'
    end
  end

Rails 3 generates : 

                              subscriptions DELETE   /subscriptions(.:format)                                        subscriptions#destroy
                         edit_subscriptions GET      /subscriptions/edit(.:format)                                   subscriptions#edit
                                            PUT      /subscriptions(.:format)                                        subscriptions#update
                                            GET      /subscriptions(.:format)                                        subscriptions#index

Rails 4 generates :

                              subscriptions DELETE   /subscriptions/destroy(.:format)                                subscriptions#destroy
                         edit_subscriptions GET      /subscriptions/edit(.:format)                                   subscriptions#edit
                                            PUT      /subscriptions/update(.:format)                                 subscriptions#update
                                            GET      /subscriptions(.:format)                                        subscriptions#index