Looks like cycle count, manufacture date and first use date are all new. I wonder if the information will be accurate for aftermarket batteries?
Actually, using a Mac with coconutBattery plugged into an iOS device allows you to see the date the battery was manufactured and the cycle count. I imagine there might be other software to pull this information off an iPhone.
This then raises the question why Apple couldn’t show this information within iOS on older models. It obviously has access to this battery information.