We are about to start setting up product on demand using defense mapping in ArcGIS Enterprise 10.6. We use the MCGP data model with version 4.4 of the technical reference document, but the link below says that esri defence mapping only supports up to version 4.2 of the TRD for MCGP.
Esri Defense Mapping | Features
Does anyone know if 4.4 will be supported any time soon?