⚠️ We have recently released XCoordinator 2.0. Make sure to read this section before migrating. In general, please replace all AnyRouter by either UnownedRouter (in viewControllers, viewModels or references to parent coordinators) or StrongRouter in your AppDelegate or for references to child coordinators. In addition to that, the rootViewController is now injected into the initializer instead of being created in the Coordinator.generateRootViewController method. “How does an app transition from one view controller to another?”. This question is common and puzzling regarding iOS development. There are many answers, as every architecture has different implementation variations. Some do it from within the implementation of a view controller, while some use a router/coordinator, an object connecting view models.