+

in lib/gitlab/feature_flag_alert/milestone.rb [28:38]


      def +(other)
        major, minor = value.split(".").map(&:to_i)

        
        
        total = (major * 12) + minor + other
        new_major, new_minor = total.divmod(12)

        self.class.new([new_major, new_minor].join("."))
      end