Close signed tasks, open follow-ups, carry revision notes. Every one is ready to run, and you can adjust it in plain language.
Clarify which design version the reviewer is deciding on.
Your reviewers get a clear task for the current proof. They know what decision to make and when it is due.
Reopen the reviewer task for your revised artwork.
Your reviewer gets a task ready to review, with the replacement proof and its version named in a comment.