Next.js Upgrade Workflow

Structured 9-step workflow for upgrading Next.js applications across major versions. Handles codemod automation, dependency updates, breaking change resolution, and validation.

When to Apply

Use this skill when:

• Upgrading Next.js to a new major version (13, 14, 15, 16)
• Running codemods to automate breaking change migrations
• Resolving deprecation warnings in an existing Next.js project
• Planning an incremental migration path for large codebases
• Validating that an upgrade did not introduce regressions

9-Step Upgrade Workflow

Step 1: Detect Current Version

Identify the current Next.js version and target version.