CentraSite does not restrict the transfer of objects between different product versions. However, if for example a user-defined type is exported and already exists on the target machine, the import will fail if the existing type already has instances and the modification of the type due to the different product version is such that the existing instances do not validate with the type any longer. Typically, enhancements of the type with additional fields do not cause any problems, but modification of existing fields may lead to unexpected results.