When’s the deadline for the Big Switch?

Exactly when we switch completely to AppFactory V4.2 depends on Apple! Why? All app templates are based on Xcode and link to an iOS version. To submit a new version of your app, ready for the latest iOS system you need to use the latest Xcode version and the AppFactory version linked to it. Consequently, the AppFactory 4.1 will work until the release of the iOS10, probably during autumn 2016.