Upgrade Next.js to the latest version following official migration guides and codemods. Use when upgrading Next.js versions, running codemods, or migrating between major releases.
Upgrade the current project to the latest Next.js version following official migration guides.
Detect current version: Read package.json to identify the current Next.js version and related dependencies (React, React DOM, etc.)
Fetch the latest upgrade guide: Use WebFetch to get the official upgrade documentation:
Determine upgrade path: Based on current version, identify which migration steps apply. For major version jumps, upgrade incrementally (e.g., 13 → 14 → 15).
Run codemods first: Next.js provides codemods to automate breaking changes:
npx @next/codemod@latest <transform> <path>
Common transforms:
next-async-request-api - Updates async Request APIs (v15)next-request-geo-ip - Migrates geo/ip properties (v15)next-dynamic-access-named-export - Transforms dynamic imports (v15)Update dependencies: Upgrade Next.js and peer dependencies together:
npm install next@latest react@latest react-dom@latest
Review breaking changes: Check the upgrade guide for manual changes needed:
next.config.jsUpdate TypeScript types (if applicable):
npm install @types/react@latest @types/react-dom@latest
Test the upgrade:
npm run build to check for build errorsnpm run dev and test key functionality