To make a FIG-file backward compatible, from the Layout Editor, select File >
Preferences > General > MAT-Files, and then select MATLAB Version 5 or later
(save -v6).
NoteThe -v6 option discussed in this section is obsolete and will be removed in a future
version of MATLAB.
All Other Preferences
GUIDE provides other preferences, for the Layout Editor interface and for inserting code
comments. In the Preferences dialog box, click GUIDE to access these preferences.
GUIDE Preferences