General CADD Pro
General CADD Pro v2.1.37 (and list of fixes) can be downloaded from here.
The beta of General CADD Pro v3.0.12 is also available for testing and download. Check out the new user-customizable toolbars, spell checker, and the new GT and OT commands. A discussion forum is here.
BricsCAD for Linux
You can download the beta release of BricsCAD v5 for Linux from here. On the download page, you find a new trial license key for BricsCad V5 for Linux, valid until end of September 2004.
BricsCad V5 improves performance, and contains more than 200 fixes -- including numerous fixes and improvements related to running on WINE. (BricsCad V5 for Linux runs in the WINE environment, and has been tested on SuSE, RED HAT and FEDORA CORE.) Check out the support forum here.
Robert Davis alerts me that ProgeSOFT of Italy is porting IntelliCAD to Linux, calling it "CADforLINUX".
There are very few details, so I don't know if the effort is similar to (or the same as) BricsCAD.