S4 Q&A: The school sent me a new I-20 for the next intake because my change of status is still pending.

 That's normal - the updated I-20 keeps your file valid with a new start date while USCIS decides. Keep it with your records and check the new dates. Whether USCIS also needs a copy of the updated I-20 depends on your case, so our senior consultant confirms that with you.