Pre-test setup: Standup a Moodle site any version < 4.0 Standup a Moodle 4.0 site Actual Test: Login to the Pre 4.0 site Create a new course Create a new quiz Create some questions in the course/quiz context and create some tags Add some random questions to the quiz and tag those random questions Make sure you add different types and combinations of tags for the random questions Backup the course Login to the 4.0 site Restore the course Navigate to the course > quiz Navigate to Questions Edit the random questions Confirm: That all the tags are available for the restored questions like the pre 4.0 site.