🔒 We now support many different forms of navigation in the Composable Architecture, but if used naively, they open us up to invalid states, like being navigated to several screens at a time. We’ll correct this with the help of Swift's enums.

🔒 While we just tackled drill-down navigation, sadly the API we used was deprecated in iOS 16. Let's get things working with the new `navigationDestination` view modifier, and see what testing in the Composable Architecture has to say about navigation.

🔒 We have a single navigation API powering alerts, dialogs, sheets, popovers, and full screen covers, but what about the prototypical form of navigation, the one that everyone thinks of when they hear "navigation"? It's time to tackle links.

🔒 Let's prepare to delete a *lot* of code. The navigation APIs we've built so far to drive alerts, dialogs, and sheets all have more or less the same shape. We can unify them all in a single package that can also be applied to popovers, fullscreen covers, and more!

🔒 We add superpowers to the navigation tools of the [Composable Architecture][tca-gh], including

automatically cancelling a child feature's effects upon dismissal, and even letting child

features dismiss themselves! Plus, we look at how "non-exhaustive" testing simplifies

navigation-based tests.

[tca-gh]: http://github.com/pointfreeco/swift-composable-architecture

🔒 We tackle a more complex form of navigation: sheets! We'll start with the tools the Composable

Architecture ships today before greatly simplifying them, taking inspiration from the tools we

built for alerts and dialogs.

🔒 Let's dip our toes into the new composable navigation tools by improving how alerts and

confirmation dialogs can used in the library. We will create a new reducer operator that more

correctly handles the logic and hides unnecessary details.

🔒 It's finally time to tackle navigation in the Composable Architecture. We'll port the

Inventory app we first built to understand SwiftUI navigation, which will push us to

understand what makes the architecture "composable," how it facilitates communication between

features, and testing.

🆓 Our first ever livestream! We talk about a few new features that made it into our

[Dependencies](http://github.com/pointfreeco/swift-dependencies) library when we extracted it

from the Composable Architecture, live code our way through a `NavigationStack` refactor of

our [Standups](http://github.com/pointfreeco/standups) app, and answer your questions along

the way!

🔒 We conclude the series by taking control of the last two dependencies: persistence and speech recognition. We'll make use of even more features of our new Dependencies library and we'll write tests for our features that would have been impossible before.