We are in the process of upgrading all front end model mdl files from matlab 2010a to 2012b. To do this, we are opening the mdl files with 2012b, making a text change on the top level and then saving the file. The changes are to add the SVN tags $Id$ and $HeadURL$ as strings (or moving them/changing font size if they exist).

If the model is a common library part, it must be unlocked before it can be edited. This is done (after the model has been opened) by the matlab command line:

>> set_param('rtdemod','Lock','off')

where rtdemod is the mdl file name (leave out the .mdl part). You should see the padlock icon on the lower left disappear and you can make changes.

When you save, you have the option of asking matlab to save a 2010a version. Please do this, we can remove these files later when we have tested the system thoroughly with 2012b.

When you close the file the lock is reapplied.