This is only a maintenance release to keep this plugin inline with the core multichoice question type. Changes are really minor and in fact for nearly all users there should be absolutely no difference in using this 1.41 version or the previous 1.4 one even with Moodle 3.0. The most significant change is that the plugin will handle better bad data in backup files during restoration of multichoiceset questions. But as I said I want to maintain this plugin inline with the core multichoice question type so this is the real reason of this release.