This update includes several changes that should improve the smoothness of this simulation, especially during turns. There are also improvements to the aircraft gauges, the flight planner, weather simulation, and the aircraft's behavior.
New to this update is Dynamic Scenery, which will work both day and night, whether you have shadows turned on or off. The Shadows Flight Simulator now includes shadows for aircraft, buildings, and dynamic scenery. The complete redesign of the scenery system in Flight Simulator 2000 made the previous method of displaying shadows obsolete. A list of all the improvements and plans for future changes can be found here.