Upgrade considerations

A baseline that is valid in a previous release is not necessarily valid after an upgrade. For example, if you upgrade from release 1.2 to release 1.3, the study could contain RefNames that you could create in release 1.2 but that you cannot create and are not valid in release 1.3, such as no, an invalid RefName. A study that contains such RefNames does not pass validation in release 1.3.