Does UT support Archiving / Historical Versions?
No. Archiving can be enabled on an UT database. Data, captured with UT for ArcGIS are stored correctly in the historical versions. But because of a limitation in ArcGIS, data of historical versions cannot be presented correctly with UT functionality.
The ArcGIS interface IQueryDef returns incorrect values on a historical version. This interface is used in UT for ArcGIS extensively and cannot be replaced by other interfaces. The provided workaround is not applicable in an application like UT for ArcGIS.