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next-upgrade

next-upgrade

github.com/connoradsDevelopment1866 installsUpdated today
Repository

About next-upgrade

A skill for upgrading an existing Next.js project using official migration guides, codemods, dependency updates, and build checks. It is intended for developers moving projects to newer Next.js versions.

Key features

  1. 01Detects current Next.js and related dependencies
  2. 02Selects version-specific migration steps
  3. 03Runs codemods for breaking changes
  4. 04Updates Next.js and peer dependencies
  5. 05Checks builds and key functionality

Use cases

  1. 01Planning an incremental major-version upgrade
  2. 02Applying automated transforms before manual migration
  3. 03Checking a project after dependency updates

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/connorads/dotfiles --skill next-upgrade

After installing, type/next-upgradein Claude Code to confirm it loaded.

Details

From the project README

Upgrade Next.js

Upgrade the current project to the latest Next.js version following official migration guides.

Instructions

  1. Detect current version: Read package.json to identify the current Next.js version and related dependencies (React, React DOM, etc.)

  2. Fetch the latest upgrade guide: Use WebFetch to get the official upgrade documentation:

  3. Determine upgrade path: Based on current version, identify which migration steps apply. For major version jumps, upgrade incrementally (e.g., 13 → 14 → 15).

  4. 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)

  5. Update dependencies: Upgrade Next.js and peer dependencies together:

    npm install next@latest react@latest react-dom@latest

  6. Review breaking changes: Check the upgrade guide for manual changes needed:

    • API changes (e.g., async params in v15)
    • Configuration changes in next.config.js
    • Deprecated features being removed

  7. Update TypeScript types (if applicable):

    npm install @types/react@latest @types/react-dom@latest

  8. Test the upgrade:

    • Run npm run build to check for build errors
    • Run npm run dev and test key functionality

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