> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/pointfreeco/swift-composable-architecture/llms.txt
> Use this file to discover all available pages before exploring further.

# Migration Guides

> Learn how to upgrade your application to the newest version of The Composable Architecture

## Overview

The Composable Architecture is under constant development, and we are always looking for ways to simplify the library, and make it more powerful. As such, we often need to deprecate certain APIs in favor of newer ones. We recommend people update their code as quickly as possible to the newest APIs, and these guides contain tips to do so.

<Warning>
  Before following any particular migration guide be sure you have followed all the preceding migration guides.
</Warning>

## Available Migration Guides

The following migration guides are available to help you upgrade to newer versions of The Composable Architecture:

* [Migrating to 1.19](/migration/v1-19) - Store internals rewrite and StateObject compatibility
* [Migrating to 1.18](/migration/v1-18) - Effect lifecycle changes and UIKit navigation helpers
* [Migrating to 1.17](/migration/v1-17) - @Shared property wrapper extraction to separate library

## Getting Help

If you encounter issues during migration, please refer to the specific version guide for detailed instructions. Each guide includes information about breaking changes, deprecations, and recommended upgrade paths.