Best practice for managing content updates

Summary:

Looking for advice on best practice for managing updates to content. At this stage we're looking to explore this based on two scenarios, both for self paced offerings.

1. Minor content update where we don't need to see which version learner has completed - Upload the new content. Delete the activity from the offering and replace with new content. Reconcile learning assignments.
2. Major content update where we need to track that learners which version has been completed - Upload the new content. End date the current offering. Create a new offering with the new content as the activity.

My questions are mainly around scenario 2. Particularly where a learner has self-enrolled rather than having been assigned the learning by admin.