Publishing .imodel file in Microstation CONNECT (10.11.00.36)

When publishing an I-model in Microstation CONNECT (10.11.00.36), I am only able to obtain a ver 1.6 i.dgn file.  This is not recognised by my Navigator CONNECT (06.01.06.10) programme.  Is a separate plug-in required to publish .imodel files from Microstation?