Bought a software package with a new machine. The package included Bobcad. When I got the package (a month ago) I noticed the Bobcad was ver 20. I know that ver 21 has been out for about 6 months. Is there a big difference between the two?...Enough to insist thtat they give me the latest software version? Jim

I would always try to get the newer version. If they don't give it to you you can also upgrade at cheap prices from BobCad direct. As for new stuff, there is not all too much difference. 21 added solidworks file opening and parasolid file opening. A few minor options on surfaces and solids. In general that's it.

http://www.bobcad.com/index.php

Read it on their main page.