next-upgrade

This skill upgrades Next.js by reading your current version from package.json and applying official codemods to automate API migrations. It updates next, react, and react-dom dependencies, then runs build and dev servers to verify functionality.

Codemods are automated code transformations that apply official Next.js migration guides to your codebase. They handle breaking changes and API shifts automatically, minimizing manual migration tasks and downtime during the version upgrade.

Yes, the upgrade process updates next, react, and react-dom to their latest versions simultaneously. It adjusts TypeScript types if applicable and runs build and dev servers afterward to verify that the upgraded dependencies function correctly.

The best way is following an incremental upgrade path determined by your current Next.js version. This skill maps out the required steps based on official migration guides and applies automated codemod transforms as needed for each version jump.

Next.js builds often fail after upgrading due to breaking changes and API shifts. This skill addresses that by applying official codemods for automated migrations and running the build server post-upgrade to verify that essential functionality works correctly.

No, you do not need to manually update dependencies first. The skill identifies the current Next.js version and related dependencies from package.json automatically, then upgrades next, react, and react-dom to the latest versions as part of the process.