Discrepancy with the light Complexity view between 4.24 and 4.25. Is this a bug from the last update or a fix?

I know my lights aren’t optimized and I am in the middle of that. But when I opened my old file from 4.24 I found that the light complexity view made it seem like I didn’t need to do anything. I opened up the same old file for 4.25 and looked at with light complexity and found it to be drastically different. Not sure if this is a fix from the last version or what.