FSX/P3D. Bought v1 skipped v2 and ready to upgrade to v3. I didn't bother purchasing the v2 upgrade as I knew more construction was taking place. Same reason I skipped all those Heathrow upgrades. I respect when developers do it, but I do pick and choose. Like the Vegas upgrade we are still waiting for FSDT to deliver. According to Gary Summons, V3 is nearly ready and will be beta tested soon. New additiong include the new Runway Extension, Control Tower, Monarch and Eurojet hangers, as well as other texture changes and modified base image. The scenery will also come with a FTX option for the base image for better compatibility. More info via the source link below. Thanks to ADX reader Jamal Weston for the tipoff.