Which autocad versions does your latest viewer support?
Thanks for taking interest in GroupDocs.Viewer.
GroupDocs.Viewer for .NET supports following AutoCAD formats and versions:
- DXF
- DWG release 11, 12, 13, 14
- DWG 2000, 2000i, 2002
- DWG 2004, 2005, 2006
- DWG 2010, 2011, 2012
- DWG 2013, 2014, 2015, 2016
Whereas, GroupDocs.Viewer for Java supports DXF and DWG 2004 at the moment.