Yes, ford made changes to as-built data in 2020 (across the lineup, not just mustangs) so things are in different locations than before. As someone else said, this is mostly related to the BCM, but you may want to double-check other modules as well. As always, make a backup so if something doesn't work you can revert back.I see. So I should use 63 when my OBDLink arrives. Good thing I found this thread just in time.
Thanks.