Yes folks.
If you have a Flex Daily schedule where you manually set the duration of the zones, you may in fact find that those zones have already been re-calculated with new durations.
I went and deleted one of my schedules and re-created it and all of the zones got calculated durations which never happened previously. Apparently it’s down to a new provider of weather data.
So if you maybe WANTED to use Flex Daily but couldn’t, then go and try it now