Configuration changes are foundational to app behavior, and the closely related behavior of Activity recreation and lifecycle create the structure guiding architecture on Android. With recomposition in Compose and some brand new tools along with new Android 16 changes, apps can opt out of recreation for many types of configurations and handle configuration changes better than ever before, with benefits and opportunities for both the developer experience and the user experience. Learn how and why to opt-out of recreation, and also cases to look out for where it might not be quite so straightforward.