Carenado has released the fourth batch of aircraft for Prepar3D Version 4. These include:
C208b Grand Caravan EX
Ct206h Stationair G1000 extension pack
SR22 GTSX Turbo
CT182T Skylane G1000
Serial numbers originally delivered with the purchase from Carenado are still usable. All of the above will need new serial numbers if bought from any reseller.
Customers should download the package again from the link originally provided. You should uninstall the aircraft before installing this new version.