id summary reporter owner description type status milestone component version severity resolution keywords cc 3633 boost::gregorian::greg_year is missing a default constructor anonymous Marshall Clow boost::gregorian::greg_year is missing a default constructor, which prevents it from being serialized with boost::serialization. This is not the case with greg_month or greg_day. Bugs closed Boost 1.41.0 date_time Boost 1.51.0 Problem fixed Marshall Clow