Subscriber-Only: Today's episode is available only to subscribers. If you are a Point-Free subscriber you can access your private podcast feed by visiting https://www.pointfree.co/account.---We add superpowers to the navigation tools of the [Composable Architecture][tca-gh], includingautomatically cancelling a child feature's effects upon dismissal, and even letting childfeatures dismiss themselves! Plus, we look at how "non-exhaustive" testing simplifiesnavigation-based tests.[tca-gh]: http://github.com/pointfreeco/swift-composable-architecture