load_defaults

# File railties/lib/rails/application/configuration.rb, line 74
      def load_defaults(target_version)
        case target_version.to_s
        when "5.0"
          if respond_to?(:action_controller)
            action_controller.per_form_csrf_tokens = true
            action_controller.forgery_protection_origin_check = true
          end

          ActiveSupport.to_time_preserves_timezone = true

          if respond_to?(:active_record)
            active_record.belongs_to_required_by_default = true
          end

          self.ssl_options = { hsts: { subdomains: true } }
        when "5.1"
          load_defaults "5.0"

          if respond_to?(:assets)
            assets.unknown_asset_fallback = false
          end

          if respond_to?(:action_view)
            action_view.form_with_generates_remote_forms = true
          end
        when "5.2"
          load_defaults "5.1"

          if respond_to?(:active_record)
            active_record.cache_versioning = true
          end

          if respond_to?(:action_dispatch)
            action_dispatch.use_authenticated_cookie_encryption = true
          end

          if respond_to?(:active_support)
            active_support.use_authenticated_message_encryption = true
            active_support.use_sha1_digests = true
          end

          if respond_to?(:action_controller)
            action_controller.default_protect_from_forgery = true
          end

          if respond_to?(:action_view)
            action_view.form_with_generates_ids = true
          end
        when "6.0"
          load_defaults "5.2"

          self.autoloader = :zeitwerk if RUBY_ENGINE == "ruby"

          if respond_to?(:action_view)
            action_view.default_enforce_utf8 = false
          end

          if respond_to?(:action_dispatch)
            action_dispatch.use_cookies_with_metadata = true
            action_dispatch.return_only_media_type_on_content_type = false
          end

          if respond_to?(:action_mailer)
            action_mailer.delivery_job = "ActionMailer::MailDeliveryJob"
          end

          if respond_to?(:active_job)
            active_job.return_false_on_aborted_enqueue = true
          end

          if respond_to?(:active_storage)
            active_storage.queues.analysis = :active_storage_analysis
            active_storage.queues.purge    = :active_storage_purge

            active_storage.replace_on_assign_to_many = true
          end

          if respond_to?(:active_record)
            active_record.collection_cache_versioning = true
          end
        else
          raise "Unknown version #{target_version.to_s.inspect}"
        end

        @loaded_config_version = target_version
      end