next-upgrade

To upgrade Next.js safely, this skill detects your current version in package.json, fetches official migration guides, and applies Next.js codemods to automate transformations. It guides you through incremental upgrades across major versions and validates results with builds and tests.

Next.js codemods are automated transformation tools accessed via npx @next/codemod. They apply code changes to your project based on official migration guides, minimizing manual guesswork and potential breakages during the Next.js version upgrade process.

Yes, you can upgrade Next.js incrementally across major versions. The skill supports incremental upgrades by fetching the relevant official upgrade guides and applying the necessary codemods for each step, validating results with builds and tests along the way.

Yes, access to package.json is required to upgrade your Next.js project. The skill uses package.json to detect the current Next.js version and related dependencies, which is necessary before applying official migration guides and codemods.

The best way to apply official Next.js migration guides automatically is by using this skill to fetch the documentation and run the Next.js codemods tooling. This minimizes manual guesswork by performing automated transformations on your project files.

Using automated codemods instead of manually updating your Next.js project minimizes potential breakages and guesswork. The skill fetches official upgrade guides and applies transformations automatically, ensuring a safer migration by validating results with builds and tests.