What problem does it solve? Upgrading an Expo SDK version often breaks dependencies, deprecated packages, and native configurations, leaving developers to hunt through changelogs and migration guides manually. ## Core Features & Use Cases - Step-by-Step Upgrade Workflow: Runs npx expo install --fix, expo-doctor diagnostics, cache clearing, and prebuild steps in the correct order. - Breaking Change References: Provides migration guides for React 19, React Compiler, the New Architecture, native tabs, and the expo-av to expo-audio/expo-video transitions. - Housekeeping Checks: Identifies removable packages, outdated patches, redundant Metro/PostCSS config, and stale expo.install.exclude entries. - Use Case: When bumping a React Native app from SDK 53 to SDK 55, use this Skill to update dependencies, migrate expo-av audio code to useAudioPlayer, and convert native tab components to the new NativeTabs.Trigger.* API. ## Quick Start Upgrade my Expo app to the latest SDK and fix any deprecated packages or breaking changes.