Change in feeding schedule, after filling up IFC registration form

I recently enrolled my 2 months old baby to ifc and he will be starting next month. When filling up the registration form, he was only 1 month and some information might be abit different now. Eg in the form i stated that he’s feeding every 3 hours (back when he was 1 month old) but now at 2 months old he’s feeding more often 1.5hrs - 2hrs. How do i inform the IFC on the change of information in the form? Or i can just inform the teachers during his first day? #firsttimemom