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 fromfalse
totrue
. See Next.js Compiler for more info. - The
next/image
import was renamed tonext/legacy/image
. Thenext/future/image
import was renamed tonext/image
. A codemod is available to safely and automatically rename your imports. - The
next/link
child can no longer be<a>
. Add thelegacyBehavior
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configuration property has been removed and superseded by Output File Tracing.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 tonext/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 newnext/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
.
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