Upgrading Expo

References

• ./references/new-architecture.md -- SDK +53: New Architecture migration guide
• ./references/react-19.md -- SDK +54: React 19 changes (useContext → use, Context.Provider → Context, forwardRef removal)
• ./references/react-compiler.md -- SDK +54: React Compiler setup and migration guide
• ./references/native-tabs.md -- SDK +55: Native tabs changes (Icon/Label/Badge now accessed via NativeTabs.Trigger.*)
• ./references/expo-av-to-audio.md -- Migrate audio playback and recording from expo-av to expo-audio
• ./references/expo-av-to-video.md -- Migrate video playback from expo-av to expo-video

Beta/Preview Releases

Beta versions use .preview suffix (e.g., 55.0.0-preview.2), published under @next tag.

Check if latest is beta: https://exp.host/--/api/v2/versions (look for -preview in expoVersion)

npx expo install expo@next --fix  # install beta

Step-by-Step Upgrade Process

1. Upgrade Expo and dependencies

npx expo install expo@latest
npx expo install --fix

2. Run diagnostics: npx expo-doctor

3. Clear caches and reinstall

npx expo export -p ios --clear
rm -rf node_modules .expo
watchman watch-del-all

Breaking Changes Checklist

• Check for removed APIs in release notes
• Update import paths for moved modules
• Review native module changes requiring prebuild
• Test all camera, audio, and video features
• Verify navigation still works correctly

Prebuild for Native Changes

If upgrading requires native changes:

npx expo prebuild --clean

This regenerates the ios and android directories. Ensure the project is not a bare workflow app before running this command.

Clear caches for bare workflow

• Clear the cocoapods cache for iOS: cd ios && pod install --repo-update
• Clear derived data for Xcode: npx expo run:ios --no-build-cache
• Clear the Gradle cache for Android: cd android && ./gradlew clean

Housekeeping

• Review release notes for the target SDK version at https://expo.dev/changelog
• If using Expo SDK 54 or later, ensure react-native-worklets is installed — this is required for react-native-reanimated to work.
• Enable React Compiler in SDK 54+ by adding "experiments": { "reactCompiler": true } to app.json — it's stable and recommended
• Delete sdkVersion from app.json to let Expo manage it automatically
• Remove implicit packages from package.json: @babel/core, babel-preset-expo, expo-constants.
• If the babel.config.js only contains 'babel-preset-expo', delete the file
• If the metro.config.js only contains expo defaults, delete the file

Deprecated Packages

When migrating deprecated packages, update all code usage before removing the old package. For expo-av, consult the migration references to convert Audio.Sound to useAudioPlayer, Audio.Recording to useAudioRecorder, and Video components to VideoView with useVideoPlayer.

expo.install.exclude

Check if package.json has excluded packages:

{
  "expo": { "install": { "exclude": ["react-native-reanimated"] } }
}

Exclusions are often workarounds that may no longer be needed after upgrading. Review each one.

Removing patches

Check if there are any outdated patches in the patches/ directory. Remove them if they are no longer needed.

Postcss

• autoprefixer isn't needed in SDK +53. Remove it from dependencies and check postcss.config.js or postcss.config.mjs to remove it from the plugins list.
• Use postcss.config.mjs in SDK +53.

Metro

Remove redundant metro config options:

• resolver.unstable_enablePackageExports is enabled by default in SDK +53.
• experimentalImportSupport is enabled by default in SDK +54.
• EXPO_USE_FAST_RESOLVER=1 is removed in SDK +54.
• cjs and mjs extensions are supported by default in SDK +50.
• Expo webpack is deprecated, migrate to Expo Router and Metro web.

Hermes engine v1

Since SDK 55, users can opt-in to use Hermes engine v1 for improved runtime performance. This requires setting useHermesV1: true in the expo-build-properties config plugin, and may require a specific version of the hermes-compiler npm package. Hermes v1 will become a default in some future SDK release.

New Architecture

The new architecture is enabled by default, the app.json field "newArchEnabled": true is no longer needed as it's the default. Expo Go only supports the new architecture as of SDK +53.

Upgrading Expo

Overview

Upgrade Expo SDK versions safely, handling breaking changes, dependencies, and configuration updates.

When to Use This Skill

Use this skill when you need to upgrade Expo SDK versions.

Use this skill when:

• Upgrading to a new Expo SDK version
• Handling breaking changes between SDK versions
• Updating dependencies for compatibility
• Migrating deprecated APIs to new versions
• Preparing apps for new Expo features

Instructions

This skill guides you through upgrading Expo SDK versions:

1. Pre-Upgrade Planning: Review release notes and breaking changes
2. Dependency Updates: Update packages for SDK compatibility
3. Configuration Migration: Update app.json and configuration files
4. Code Updates: Migrate deprecated APIs to new versions
5. Testing: Verify app functionality after upgrade

Upgrade Process

1. Pre-Upgrade Checklist

• Review Expo SDK release notes
• Identify breaking changes affecting your app
• Check compatibility of third-party packages
• Backup current project state
• Create a feature branch for the upgrade

2. Update Expo SDK

# Update Expo CLI
npm install -g expo-cli@latest


# Upgrade Expo SDK
npx expo install expo@latest


# Update all Expo packages
npx expo install --fix

3. Handle Breaking Changes

• Review migration guides for breaking changes
• Update deprecated API calls
• Modify configuration files as needed
• Update native dependencies if required
• Test affected features thoroughly

4. Update Dependencies

# Check for outdated packages
npx expo-doctor


# Update packages to compatible versions
npx expo install --fix


# Verify compatibility
npx expo-doctor

5. Testing

• Test core app functionality
• Verify native modules work correctly
• Check for runtime errors
• Test on both iOS and Android
• Verify app store builds still work

Common Issues

Dependency Conflicts

• Use expo install instead of npm install for Expo packages
• Check package compatibility with new SDK version
• Resolve peer dependency warnings

Configuration Changes

• Update app.json for new SDK requirements
• Migrate deprecated configuration options
• Update native configuration files if needed

Breaking API Changes

• Review API migration guides
• Update code to use new APIs
• Test affected features after changes

Best Practices

• Always upgrade in a feature branch
• Test thoroughly before merging
• Review release notes carefully
• Update dependencies incrementally
• Keep Expo CLI updated
• Use expo-doctor to verify setup

Resources

For more information, see the source repository.