You need to test all aspects of multiple choice questions, and multianswer questions that contain multiple choice sub-questions. Before upgrading, or with Moodle 2.5, please first: Export multiple choice questions as GIFT and Moodle XML Backup and restore a course with multiple choice questions Run upgrade to master. Preview the multiple choice question you created earlier Edit/Delete the multiple choice question you created earlier Create, edit and delete a new multiple choice question Import the GIFT and Moodle XML questions you created earlier Verify the imported questions Restore the multiple choice questions course you created earlier Verify the restored questions Export multiple choice questions as GIFT and Moodle XML, and re-import and check that all the options are correctly preserved. Backup and restore a course with multiple choice questions, and check that all the settings are correctly preserved. Create edit and delete multianswer questions containing multiple choice subquestions. Preivew those multianswer questions and verify they work.