I've read that TODAY() can't be used in filter criteria for a roll-up summary. Is there any way around this? I have a field on a detail that tells whether it is from this year, last year, or longer ago than that. I've tried to make a checkbox that reads this field and gives a boolean, but apparently, that's still not functional. Is there any way around this?
Flows are out of the question, as I have several hundred thousand records that I would have to loop through.