Just a quick word on P3D V4.   We have been testing this internally for some time and are very enthusiastic about this new release. It's stable, it's fast and it compatible to a certain degree. Scenery seems to be rather easy to 'make work', aircraft of course have to be compiled again got 64 bits. This is NOT a trivial task. At Aerosoft however we rather not make things 'just work' without making use of the new features us the sim. So how older products are updated depends. Most older