Hello.

   If you try to update Maple 12 to Maple 12.01 on a Macintosh with Maple1201MacUpgrade.app you will remark that "nothing happens".

   There is a permissions problem within the updater.

   To correct it, open a Terminal and type

chmod a+x /path/to/updater/directory/Maple1201MacUpgrade.app/Contents/MacOS/*

    HTH