Thanks for the quick reply, John. There is no dependancy on the ACF JS, just the IDs and classes are needed for some show/hide logic.
I wish those changes were documented in the upgrade guide, as they break a lot of things. Ideally there would be another compatibility filter that – when enabled – outputs the old ID and class format. I liked the field names in the IDs as it made it obvious, what input field belongs to which custom field.
But I’m happy I didn’t overlook any obvious setting and will start implementing the new IDs and classes now. 🙂
