id summary reporter owner description type status milestone component version severity resolution keywords cc 1142 boost/serialization/optional doesn't include necessary header ben.carlyle@… Robert Ramey "The following function refers to version::value without an include of boost/serialization/version.hpp, resulting in user code that won't compile. It is possible to work around this problem by including boost/serialization/version.hpp before including boost/serialization/optional.hpp. I did not require a work-around with boost 1.32.0, but both 1.34.0 and 1.34.1 appear to need the work-around. {{{ template void save( Archive & ar, const boost::optional & t, const unsigned int /*version*/ ) }}} " Bugs closed To Be Determined serialization Boost 1.34.1 Regression fixed