Saw this on the DJI forms. In the new maps, the red zones seem to be gone!. For me, almost all yellow zones are now green zones (requiring no unlock). Better step than before? Though the 3 day validity of an unlock is still there. They should really make that at least 1 week.
DJI - The World Leader in Camera Drones/Quadcopters for Aerial Photography
DJI - The World Leader in Camera Drones/Quadcopters for Aerial Photography