MATLAB Release Notes    

Development Environment Issues

Preferences

Your preferences from Release 11 are not maintained in Release 12. Specify new preferences for Release 12.

The Tools menu in the Release 11 Editor/Debugger, which allowed you to create customized menu items, is no longer supported.

The dos Function Now Returns an Accurate Error Status

The dos function now returns a nonzero status when it encounters an error condition. In the past, dos always returned zero, indicating success, regardless of whether an error had actually occurred.


  Upgrading from an Earlier Release Programming and Data Types Issues