The openstudio::osversion namespace currently contains one class, VersionTranslator, provided to enable backward compatibility. In particular, OpenStudio models (.osm) and components (.osc) made with previous versions of OpenStudio Version 0.7.0 or newer can be updated to the latest version by opening them with VersionTranslator::loadModel or VersionTranslator::loadComponent, rather than with Model::load or Component::load.

The VersionTranslator is already integrated into the OpenStudio Application, and is also available through the Ruby and C# bindings.