The page is severely outdated - the text seems to date at least 10 years back. Many AutoCad entity types are not mentioned at all. They ought all to be listed, together with what can be tried to get them to import. The limitations in supported entity types ought to be listed (especially in surfaces and solids)
Autodesk Architectural Desktop (ADT) is mentioned - the product name was changed into AutoCad Architecture in version 2008, almost 10 years ago.
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