Currently, if you modify any Learning Objects in an Online Course or Curriculum, the Date Edited field does NOT get updated.
During an audit (such as ISO), it is very difficult to prove what Course version that a Learner has received, and it would be much easier if we could report on the Course's Date Edited field.
Example: On December 19th, I created a course ('Course Date' attached). On December 22nd, I deleted the Course's Video Lesson and replaced it with a newer Video Lesson. As you can see in the Course History (attached, which you can't print), the Dated Edited field does not change. I believe if you modify any of the learning content in a Course or Curriculum, the Date Edited field should reflect that.