What problem does it solve? Upgrading an Expo SDK version often breaks dependencies, native modules, and deprecated APIs like expo-av, leaving developers to manually hunt through changelogs and fix cryptic build errors. ## 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 for both CNG and bare workflow projects. - Breaking Change Migration Guides: Provides detailed references for React 19 changes, React Compiler setup, the New Architecture, native tabs restructuring, and expo-av to expo-audio/expo-video migrations. - Housekeeping and Cleanup: Identifies removable packages, outdated patches, redundant Metro/PostCSS config options, and stale expo.install.exclude entries. - Use Case: When upgrading a React Native app from Expo SDK 53 to SDK 55, use this Skill to update dependencies, migrate audio/video code off expo-av, convert native tabs imports, and verify the New Architecture works. ## Quick Start Upgrade my Expo project to the latest SDK version and fix any deprecated API usage and dependency issues.