One has been made ... a fair time ago now and that is to treat the Google (446) group as a normal group as it is now so much smaller than it was.
The other is to treat the update time as being 1 second to the hour rather than on the hour. The effect of this is that when an update occurs at what would be local midnight then the work is assigned to the previous day rather than the new one. This kind of makes sense as the unit was quite clearly completed on the previous day.