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next-upgrade

Upgrade Next.js projects across major versions using official migration guides and codemods.

Updated May 29, 2026
Search Tags:#javascript#migration#codemods#next.js#web-development#upgrade
One-click install
npx skills add https://github.com/sjmontano/SafeRoutes-Popayan --skill next-upgrade-sjmontano
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: next-upgrade
Source: https://github.com/sjmontano/SafeRoutes-Popayan/tree/main/.agents/skills/next-upgrade
Command: npx skills add https://github.com/sjmontano/SafeRoutes-Popayan --skill next-upgrade-sjmontano

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Upgrading Next.js across major versions can introduce breaking changes, misaligned peer dependencies, and configuration drift. This skill provides a guided, codemod-assisted upgrade workflow to minimize risk and ensure a smooth transition.

Core Features & Use Cases

  • Incremental upgrade path through major versions (e.g., 12→13→14) with official migration docs.
  • Automated codemod execution to adapt API changes and project structure.
  • Dependency updates and validation of builds and developer server startup across environments.

Quick Start

Follow the guided steps in this skill to upgrade Next.js in your project, starting by identifying the current version and running the recommended codemods.

Frequently Asked Questions about next-upgrade

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I upgrade Next.js to a newer major version safely?▼

Upgrade Next.js safely by detecting the current version, fetching official migration docs, running codemods for API changes, updating peer dependencies, and validating builds and dev server startup.

What are codemods and how do they help with Next.js migration?▼

Codemods automate API and project structure adaptation during Next.js major version upgrades, reducing risk and ensuring a smooth transition by programmatically updating codebase patterns.

Can I jump directly from Next.js 12 to version 14 in one step?▼

Next.js upgrades require an incremental path through major versions (e.g., 12→13→14), applying official migration docs and codemods at each stage to resolve breaking changes and peer dependency misalignment.

Why does my Next.js build fail after updating the framework version?▼

Build failures after a Next.js version update typically stem from configuration drift or misaligned peer dependencies; guided upgrade workflows address this by updating dependencies and validating builds.

How do I fix misaligned peer dependencies when upgrading Next.js?▼

Fix misaligned peer dependencies during Next.js upgrades by updating related packages alongside the framework and running build validation to ensure environment compatibility.

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