### VERSION 0.0.3 => 0.0.4 If you use Devise of callback named verify_authenticity_token we need to add a initializers like Add `config/initializers/locales.rb` ``` module LocalesControllerCallbacks extend ActiveSupport::Concern included do skip_before_action :verify_authenticity_token end end LocalesController.send(:include, LocalesControllerCallbacks) ``` Otherwise is ok.