Version 13

Upgrading from 12 to 13

To update to Next.js version 13, run the following command using your preferred package manager:

npm i next@latest react@latest react-dom@latest eslint-config-next@latest
# or
yarn add next@latest react@latest react-dom@latest eslint-config-next@latest
# or
pnpm up next react react-dom eslint-config-next --latest
# or
bun add next@latest react@latest react-dom@latest eslint-config-next@latest

v13 Summary

• The Supported Browsers have been changed to drop Internet Explorer and target modern browsers.
• The minimum Node.js version has been bumped from 12.22.0 to 16.14.0, since 12.x and 14.x have reached end-of-life.
• The minimum React version has been bumped from 17.0.2 to 18.2.0.
• The swcMinify configuration property was changed from false to true. See Next.js Compiler for more info.
• The next/image import was renamed to next/legacy/image. The next/future/image import was renamed to next/image. A codemod is available to safely and automatically rename your imports.
• The next/link child can no longer be <a>. Add the legacyBehavior prop to use the legacy behavior or remove the <a> to upgrade. A codemod is available to automatically upgrade your code.
• The target configuration property has been removed and superseded by Output File Tracing.

Migrating shared features

Next.js 13 introduces a new app directory with new features and conventions. However, upgrading to Next.js 13 does not require using the new app directory.

You can continue using pages with new features that work in both directories, such as the updated Image component, Link component, Script component, and Font optimization.

<Image/> Component

Next.js 12 introduced many improvements to the Image Component with a temporary import: next/future/image. These improvements included less client-side JavaScript, easier ways to extend and style images, better accessibility, and native browser lazy loading.

Starting in Next.js 13, this new behavior is now the default for next/image.

There are two codemods to help you migrate to the new Image Component:

• next-image-to-legacy-image: This codemod will safely and automatically rename next/image imports to next/legacy/image to maintain the same behavior as Next.js 12. We recommend running this codemod to quickly update to Next.js 13 automatically.
• next-image-experimental: After running the previous codemod, you can optionally run this experimental codemod to upgrade next/legacy/image to the new next/image, which will remove unused props and add inline styles. Please note this codemod is experimental and only covers static usage (such as <Image src={img} layout="responsive" />) but not dynamic usage (such as <Image {...props} />).

Alternatively, you can manually update by following the migration guide and also see the legacy comparison.

<Link> Component

The <Link> Component no longer requires manually adding an <a> tag as a child. This behavior was added as an experimental option in version 12.2 and is now the default. In Next.js 13, <Link> always renders <a> and allows you to forward props to the underlying tag.

For example:

import Link from 'next/link'
 
// Next.js 12: `<a>` has to be nested otherwise it's excluded
<Link href="/about">
  <a>About</a>
</Link>
 
// Next.js 13: `<Link>` always renders `<a>` under the hood
<Link href="/about">
  About
</Link>

To upgrade your links to Next.js 13, you can use the new-link codemod.

<Script> Component

The behavior of next/script has been updated to support both pages and app. If incrementally adopting app, read the upgrade guide.

Font Optimization

Previously, Next.js helped you optimize fonts by inlining font CSS. Version 13 introduces the new next/font module which gives you the ability to customize your font loading experience while still ensuring great performance and privacy.

See Optimizing Fonts to learn how to use next/font.