The final release is posted at
http://www.sdtools.com/sdt64.html

Between the pre-release and the final version modifications were done on
- tab resizing in iiplot
- sorting of quality plots in idcom
- robustness of installation procedure
- a few documentation edits

The current SDT 6.3 is compatible with MATLAB >= 7.1
For the next release, we will be using newer objects which have only been introduced in MATLAB 7.6, but this will mostly affect the extent of GUI interactivity in FEPLOT and IIPLOT. If you have reasons to want support of older releases please get in touch, while considering that MATLAB 7.3 is needed for the new .mat format and 7.5 for pcode ...

A MATLAB bug with the WindowButtonDownFcn http://www.mathworks.com/support/bugreports/517438
induces a freeze of tabs in the IDCOM figure.

Since no bypass is proposed by the MathWorks, a new strategy is implemented in SDT 6.3 beta available at www.sdtools.com/sdtcur.html