We're taking a look at the new Turnitin LTI 2.0 that operates with the Canvas Plagiarism Framework. We've been using the original Turnitin LTI for a couple years now. What are the various upgrade paths for moving from the old LTI to the new LTI? What happens to assignments created with the old LTI when we disable it, will those links stop working? Do we need to identify and migrate all assignments before pulling the plug on old LTI? Is there a documented or recommended upgrade path?