This form, referred to as the "Crosswalk of 2001 IEP Forms and 2023 IEP Forms" will show you what is new on the IEP form. It references the "old IEP" pages to the "new IEP" pages.

From the Chris Walsh Centers YouTube Channel: This is a series headed by intern, Catie Ashe, which aims to invite expert, Kathryn Welby, to speak on the difference between a 504 & an IEP.