chore(deps): update dependency nuxt to v4

[renovate]

ℹ️ Note

This PR body was truncated due to platform limits.

This PR contains the following updates:

Package	Change	Age	Confidence
nuxt (source)	2.16.3 → 4.5.2

---

Release Notes

nuxt/nuxt (nuxt)

v4.5.2

Compare Source

4.5.2 is the next patch release.

👉 Changelog

compare changes

🔥 Performance

• nuxt,kit: Skip rewriting unchanged generated files (#​35902)
• kit,nuxt: Use lazy imports to improve parsing speed (#​35901)
• vite: Skip html entry probes in bare-import resolver (#​35907)
• nuxt: Reuse app and component scans for unchanged structures (#​35912)

🩹 Fixes

• vite: Resolve client manifest path from resolved config (#​35883)
• nuxt: Use client-side navigation for links inside islands (#​35806)
• nuxt: Generate types for route params defined with definePageMeta (#​35857)
• nuxt: Serialize island payloads for components with underscores in keys (#​35807)
• nitro: Dedupe island renders when prerendering (#​35835)
• nuxt: Drop prefetch hints for never-hydrated chunks (#​35812)
• vite: Use same asset filenames for worker builds (#​35866)
• nitro: Reject non-object island props (#​35867)
• nuxt: Support options api in v-for islands transform (#​35877)
• nuxt: Improve page meta extraction + performance (#​35869)
• nuxt: Set build outputs when restoring vue cache (#​35895)
• kit: Honour nested apply and applyToEnvironment in vite wrapper (#​35899)
• nuxt: Re-check for preview mode after prerendered page hydration (#​35886)
• kit,nuxt,vite: Handle missed chokidar watch events (#​35887)
• nuxt: Settle asyncData status when bailing (#​35908)
• kit: Clone resolved config with klona rather than klona/full (#​35914)
• kit: Honour nested plugins' enforce in vite wrapper (#​35916)
• nuxt: Collect build cache once build outputs are final (#​35929)
• vite: Resolve vite env api sourcemaps in vite-node (#​35758)
• nuxt: Don't warn about missing <NuxtPage> on nav + with slot (#​35948)
• kit: Prepend vite environment wrapper plugin when prepend is set (#​35942)
• nuxt: Depend on rolldown as a peer to reuse vite's copy (3fda97f60)
• nitro: Define import.meta.test for server code (#​35987)
• nuxt: Match route rules against decoded paths (9123ed850)

💅 Refactors

• nuxt: Use vue-component-type-helpers instead of locally maintained helpers (#​35840)
• nuxt: Use isReferenceIdentifier in page-meta plugin (#​35882)

📖 Documentation

• Sync mcp server page with live tools and providers (#​35856)
• Add server components guide and mostly-static site recipe (#​35778)
• Minor changes (#​33479)
• Add accessible routing guide (#​34796)
• Update testing guide to test-utils v4.1.0 (#​35873)
• Update .env provider reference from dotenv to c12 (#​35911)
• Add note to avoid using defineVitestProject in e2e tests (#​35926)
• Update roadmap (f6e6027fe)

📦 Build

• ui-templates: Copy generated templates from resolved output dir (#​35921)

🏡 Chore

• nuxt: Bump @nuxt/devtools to v3.4.0 (#​35892)
• Fix lint (1951a2489)
• Throw error with cause in script (a90608d5c)
• Lint notification script 🤦 (429a96b24)
• Ignore safe pull_request_target (035a3a3d4)
• Reorder ignore (3baf6fedd)
• Bump nuxt rolldown peer dep to match unctx (2c38086f5)

✅ Tests

• Skip webpack dev tests for island v-for transform (73030e55a)
• Add regression test for #​35893 (#​35893)
• vite: Cover windows drive letters in toFsUrl (a5ad667f7)

🤖 CI

• Shard the critical-path test jobs and cache playwright (#​35832)
• Add action to notify issues resolved on release (5fffe5718)
• Make notification script more resilient (5337bd357)
• Do not comment on issues in other repos (400dfdc11)
• Add explicit permissions: {} to workflows (2e1a1cbeb)
• Rebalance windows e2e matrix (dffe13742)
• Let contributors know prs are backported (3e416c54f)
• Regenerate templates in autofix job (95d33637f)

❤️ Contributors

• Daniel Roe (@​danielroe)
• Matej Černý (@​cernymatej)
• Aubakirov Asker (@​Askerka00)
• Yoshihiro Yamaguchi (@​yamachi4416)
• Samuel Burkhard (@​samydoesit)
• Kenneth Sills (@​Kenneth-Sills)
• Spunkie (@​Spunkie)
• Bochkarev Ivan (@​Ibochkarev)
• Amulet Iris (@​KazariAI)
• Yash Bavadiya (@​xevrion)
• Alexander Lichter (@​TheAlexLichter)
• Mehraz Morshed (@​mehrazmorshed)
• mcrapts (@​mcrapts)
• Benjamin Canac (@​benjamincanac)
• Anthony Fu (@​antfu)

v4.5.1

Compare Source

⚠️ This is a security release. We recommend upgrading as soon as possible with npx nuxt upgrade --dedupe.

It fixes server-side RCE and unauthorized component instantiation via server island props, a route rule authorization bypass, server component DoS, cross-user payload disclosure on cached pages, and dev server path disclosure. Refreshing your lockfile also pulls in @nuxt/devtools@3.3.1, which fixes a separate critical development-only RCE.

If you already upgraded for the earlier route rule advisory (CVE-2026-53721), you still need this release: one of the fixes addresses a regression introduced by that fix.

If you use the cache, swr or isr route rules, purge any CDN or edge cache after upgrading; a leaked _payload.json may already be cached upstream.

Full details: Nuxt Security Patch Releases and GitHub Security Advisories.

👉 Changelog

compare changes

🔥 Performance

• nitro: Replace island teleports in a single html pass (#​35515)
• nuxt: Add vue.optionsApi and disable it for v5+ (#​35791)
• nuxt: Without pages, skip client plugins that require routing (#​35794)
• nuxt: Skip payload revival plugin when ssr: false (#​35782)

🩹 Fixes

• nitro: Read rspack dev output fs lazily for server entry (#​35740)
• rspack,webpack: Resolve loaders and runtime deps from nuxt dirs (#​35568)
• nuxt: Return global route for useRoute in detached effect scope (#​35659)
• nuxt: Ignore custom name or path when reusing an existing page in pages:extend (#​35661)
• nuxt: Render client components in nested server components (#​35669)
• nuxt: Preserve explicit useFetch method inference (#​35671)
• nuxt: Revalidate cached route payloads instead of using force-cache (#​35672)
• nuxt: Correct default export detection in plugin metadata (#​35676)
• nuxt: Clear hide/reset timeouts in set() (#​35534)
• kit,nuxt,rspack,schema,webpack: Add .mts file extension in resolver (#​33845)
• nuxt: Preserve trailing slash in NuxtLink href when unset (#​35501)
• nuxt: Don't cross-pollute useAsyncData cache on reactive key change (#​35656)
• nuxt: Filter plugin dependencies by build target (#​35682)
• nuxt: Reload real page module on HMR of JSX render-function pages (#​35678)
• nuxt: Resolve @unhead/vue/* from nuxt's dependency tree (#​35690)
• kit: Surface module load errors instead of masking as missing (#​35497)
• nuxt: Type auto-imported $fetch with nitro's $Fetch (#​35704)
• nuxt: Don't reference app config sources in shared and node tsconfigs (#​35673)
• vite: Resolve SSR inlined CSS module class name mismatch (#​35610)
• nuxt: Generate layout types even when pages module is disabled (#​35717)
• nitro: Skip resource hints for stylesheets already rendered as blocking links (#​35691)
• kit: Dedupe layers that are both auto-scanned and explicitly extended (#​35712)
• nuxt: Don't apply scroll behaviour after a subsequent nav (#​35719)
• vite: Ensure server sourcemap-preserver plugin actually runs (#​35680)
• vite: Preserve css suffix when extracting ssr inline styles (#​35714)
• nuxt: Watch external component directories in development (#​35652)
• nuxt: Don't exclude client entry module from style extraction (#​35720)
• nuxt: Amend cleanup command in NUXT_B7014 error message (#​35735)
• nuxt: Only pull in vue-router when there are island pages (#​35739)
• vite: Suppress external warnings for internal vite-node paths (#​35744)
• nuxt: Use scope-aware oxc parser for auto-imports (#​35743)
• nuxt: Sync layout meta during middleware on SSR (#​35633)
• nitro: Add alias for h3 that pins it to the version nuxt depends on (#​35774)
• nuxt: Preserve query params in cached payload extraction (#​35696)
• nuxt: Mirror runtime route tree in generated typed-router types (#​35788)
• nuxt: Warn when an imports preset from cannot be resolved (#​35799)
• kit: Avoid mutating layer configs when resolving options (#​35729)
• nuxt: Convert inline route rules exactly or drop with a warning (#​35455)
• nitro,nuxt,vite: Dedupe and normalise global css links in dev (#​35834)
• vite: Register template HMR plugin on dev servers (929c6c138)
• nuxt: Remove dev error overlay when error is cleared (#​35821)
• rspack,webpack: Resolve bundled postcss defaults from builder (#​35823)
• schema: Normalise slashes in app.buildAssetsDir (#​35833)
• nitro: Bound island props and v-for to prevent unauthenticated DoS (4e35ae9ba)
• nitro: Confine runtime payload cache to prerendering (ac9b41a36)
• nuxt: Case-fold route rule keys to match folded lookups (ad624a75a)
• nitro: Require loopback peer for chrome devtools workspace endpoint (0769c4f9b)
• nuxt: Reject reserved template island prop under runtime compiler (ee6c84633)
• nuxt: Reject top-level as prop for islands (581651ff3)

💅 Refactors

• nuxt: Use tick based debounce for asyncData executes (#​34151)
• kit,nuxt: Replace semver with verkit (#​35713)
• rspack,webpack: Use DI model to split builders (#​35751)

📖 Documentation

• Add dev container setup guide (#​35665)
• Fix dev container setup guide (#​35666)
• Add explanation of 200.html and 404.html SPA fallbacks (#​34483)
• Expand payload extraction documentation (#​35648)
• Clarify NuxtLink componentName is the internal (devtools) name (#​35658)
• Add example for components dir pattern option (#​35663)
• Require a single root element (#​35677)
• Add reason for why you should never import Vue app code in nitro code (#​34481)
• Document disabling code-splitting with codeSplitting: false (#​35683)
• Document nuxt-client caveat for non-SFC components (#​35654)
• Clarify favicon does not use cdnURL by default (#​35681)
• Standardize section order and headings across docs (#​35685)
• Clarify onPrehydrate example comment (#​35684)
• Add useId as a known limitation of nuxt island (#​35693)
• Recommend status over pending in data fetching (#​35694)
• Fill gaps in API minimalVersion badges after #​34485 (#​35708, #​34485)
• Explain dynamic asset paths (#​35695)
• Document runtimeConfig env var casting edge cases (#​35709)
• Clarify module dependency resolution (#​35718)
• Add more writing guidelines (#​35662)
• Add note with alternatives to using remote layers (#​35721)
• Use nuxt rather than nuxi (8891e179c)
• Document relative baseURL workarounds (#​34004)
• Warn about runtimeCompiler security best practices (449b63ab1)
• Warn about validating server component props (2c981cb07)

📦 Build

• nitro: Re-export type from augments to preserve module (dac937675)
• nuxt: Remove .ts file extension from runtime/ imports (#​35689)
• ui-templates: Commit generated ui template files (#​35770)

🏡 Chore

• Add extension 🤦 (d595fb3d4)
• Move to pnpm catalogs (#​35748)
• Update knip config, resolve issues, and run in ci (#​35742)
• Ignore @nuxt/telemetry in knip (9824d4f10)
• ui-templates: Pass config file path to unocss (34e7a810d)
• Allow regenerating lockfile in release script (c31389df3)
• nuxt: Bump @nuxt/devtools to v3.3.1 (#​35815)
• Ensure types are setup before unit tests (784d8f700)
• Simplify knip configuration (#​35827)

✅ Tests

• Reproduce duplicate CSS in shared chunks (#​35649)
• Prepare fixtures automatically before fixture and e2e runs (e8b3e6411)
• Improve and refactor basic fixture (#​35687)
• Slim down client-only, chunk-error and axis-independent suites (#​35706)
• Do not run type checking when benchmarking nuxt build (6355f3bc9)
• kit: Scope loadNuxt temp dir so it doesn't delete sibling fixtures (37301dd51)
• Guard against transient undefined _route in gotoPath (ca92d082b)
• Retry fixture prepare on transient ENOTEMPTY (3a6b59f96)
• Raise route-HMR polling timeout to reduce e2e flakiness (01dc27b7e)
• Update bundle size snapshot (30d24817c)

🤖 CI

• Rebalance shards and drop non-vite windows fixtures (#​35700)
• Warm windows dependency cache on main (#​35730)
• Run knip in default and production modes (#​35745)
• Run knip on pull requests (d620aa972)
• Prepare tests (c7bf7f738)
• Also prepare tests in knip job (58f68bd64)
• Check internal docs links on pull requests and all links weekly (#​35767)

❤️ Contributors

• Daniel Roe (@​danielroe)
• Lars Kappert (@​webpro)
• Matej Černý (@​cernymatej)
• Anthony Fu (@​antfu)
• Harlan Wilton (@​harlan-zw)
• Florian Heuberger (@​Flo0806)
• Anoesj Sadraee (@​Anoesj)
• Ryota Watanabe (@​wattanx)
• Alexander Lichter (@​TheAlexLichter)
• Nestor Vera (@​hacknug)
• Mateleo (@​Mateleo)
• Kevin Deng (@​sxzz)
• Robin (@​OrbisK)
• Bochkarev Ivan (@​Ibochkarev)
• Quentin Macq (@​quentinmcq)
• Julien Huang (@​huang-julien)
• Max (@​onmax)
• Luke Nelson (@​luc122c)
• Darlan José Batista do Prado (@​DarlanPrado)
• kealan (@​KealanAU)
• Sushant (@​sushantguri)
• raminjafary (@​raminjafary)
• Aubakirov Asker (@​Askerka00)
• lutejka (@​lutejka)
• Amulet Iris (@​KazariAI)
• bdbch (@​bdbch)
• Elecmonkey (@​elecmonkey)

v4.5.0

Compare Source

4.5.0 is the next minor release.

📣 Some News

Preparing for Nuxt 5

A good chunk of this release is (hopefully) invisible plumbing for Nuxt 5. We've moved onto the latest major versions of several core dependencies (unhead v3, unctx v3, and Vite 8), switched the framework's own build over to tsdown, and introduced a stable nuxt/* build output contract with dev exports so that type-checking in the Nuxt monorepo works without a build step (#​35463, #​35605).

Much of this is working to shrink the gap between v4 and v5 internally, so that the migration will be as boring as possible.

[!TIP]
If you want to test some of the breaking changes of Nuxt v5, you can already opt in with future.compatibilityVersion: 5. Keep an eye on the Upgrade Guide for details as they land.

With the release of Nuxt v4.5, our focus as a team will turn to stabilising Nuxt v5 and creating compatibility utilities to make the upgrade as smooth as possible.

Nuxt 3 End-of-Life

Nuxt 3 reaches end-of-life on July 31, 2026, so this is one of the last few 3.x releases we'll ship. If you're still on v3, now is a great time to move across. Most people told us the v3 to v4 upgrade was smooth, and we've kept the upgrade guide up to date.

Alongside v4.5.0 we're publishing a maintenance patch for the 3.x line (v3.21.9) with the compatible bug fixes and smaller improvements from this release backported. The headline items here (Vite 8, Rspack 2, unhead v3, unctx v3) are major upgrades and stay v4-only, so 3.x remains stable as it approaches end-of-life.

👀 Highlights

Nuxt 4.5 is a big one. This release ships three major upgrades to the build layer (Vite 8, Rspack 2, and a brand new Rsbuild-powered pipeline for the Rspack builder), an experimental SSR streaming mode, a handful of new composables and conventions, and a lot of groundwork that brings us closer to Nuxt 5.

There's a lot here, so grab a coffee. ☕️

⚡️ Vite 8

Nuxt now runs on Vite 8 (#​34256). This brings faster cold starts, the latest Rolldown-powered internals, and many upstream improvements from the Vite team.

For most apps this is a transparent upgrade. If you have custom Vite plugins or config, it's worth skimming the Vite migration guide to check for anything that affects you.

[!WARNING]
Vite 8 is a major version bump. If you depend on Vite directly (custom plugins, vite.config tweaks, or ecosystem plugins that pin a Vite version), make sure those are compatible before upgrading in production.

🦀 Rspack 2 and Rsbuild

If you use the Rspack builder, this release is a substantial upgrade. We've moved to Rspack 2 (#​34929), which is faster and lighter, and rebuilt the builder on top of @rsbuild/core (#​35489).

The public surface stays the same. You still opt in with builder: 'rspack' and the existing rspack:* hooks continue to work:

// nuxt.config.ts
export default defineNuxtConfig({
  builder: 'rspack',
})

Under the hood, though, a lot has changed for the better:

• The dev server now runs in middleware mode via Rsbuild, replacing webpack-dev-middleware and webpack-hot-middleware (#​35575).
• We use an Rspack-specific Vue loader for correct SSR scoped-style ids and stricter ESM resolution (#​35566).

[!NOTE]
This is the foundation for first-class Rsbuild support. We kept the builder named rspack for now so nothing breaks, but the internals are now Rsbuild all the way down.

🌊 Experimental SSR Streaming

This is one I'm particularly excited about. You can now enable SSR streaming to dramatically improve Time to First Byte (#​34411). Instead of buffering the whole rendered page and sending it in one go, Nuxt flushes the HTML shell (your <head>, styles, preload hints, and entry scripts) immediately, then streams the body as Vue renders it.

// nuxt.config.ts
export default defineNuxtConfig({
  experimental: {
    ssrStreaming: true,
  },
})

Streaming is automatically disabled for bots and crawlers so search engines still receive fully-rendered HTML. You can tune which user agents count as crawlers, and you can opt individual routes out:

// nuxt.config.ts
export default defineNuxtConfig({
  experimental: {
    ssrStreaming: {
      botRegex: /googlebot|bingbot|my-internal-crawler/i,
    },
  },
  routeRules: {
    '/no-stream/**': { streaming: false },
  },
})

There's one thing worth understanding before you turn it on. Because streaming commits the HTTP status and headers with the very first byte, anything that mutates the response after rendering has begun (a setResponseStatus() in a <script setup>, a cookie write during middleware, and so on) can't reach the client. Nuxt handles the common cases for you: routes with redirect, cache, isr, swr, noScripts, or ssr: false rules automatically fall back to the buffered renderer, and in development we log a warning naming any dropped mutations so nothing fails silently.

[!WARNING]
SSR streaming is experimental and off by default. It could be great for content-heavy routes where TTFB matters, but test it against your app's response-mutating logic (status codes, headers, cookies) before shipping it widely. The experimental features docs cover the fallback rules and caveats in detail.

📖 SSR streaming documentation

🩺 Stable Error Codes

This one I'm really happy about. Nuxt now has a stable error code system (#​35429). Warnings and errors raised during build and at runtime now carry a stable code (like NUXT_E1001 or NUXT_B5001), a short explanation of why it happened, and a concrete fix to try.

Every code is greppable and bookmarkable, and the ones that need more than a one-line fix link straight to a dedicated docs page. For example, the classic "a composable was called outside a Nuxt context" now surfaces as NUXT_E1001 with the why/fix inline and a docs page explaining the context rules and how to use runWithContext().

To keep production output lean, the verbose why/fix text is stripped from production builds, leaving just the stable code.

This is the foundation for much better error messages across Nuxt, and we'll keep migrating existing warnings and errors onto it over the coming releases. If you've ever squinted at a cryptic Nuxt message, this is for you.

🎨 useLayout Composable

There's a new useLayout composable for reading the layout that's been resolved for the current route (#​35623). Previously there was no clean, reactive way to ask "which layout is this page using?" from within a component.

<!-- app/components/LayoutBadge.vue -->
<script setup lang="ts">
const layout = useLayout()
</script>

<template>
  <span>Current layout: {{ layout }}</span>
</template>

It returns a read-only computed ref, so it stays in sync as you navigate or as route rules and definePageMeta change the resolved layout.

📖 useLayout documentation

🪟 Named Views

Nuxt now supports named views through a filename convention (#​35123). If a parent page renders more than one <NuxtPage> outlet, you can give each outlet a name and provide a sibling page file for it using the name@view.vue convention:

# Directory Structure
-| pages/
---| parent/
-----| child.vue
-----| child@sidebar.vue
---| parent.vue

<!-- pages/parent.vue -->
<template>
  <div>
    <NuxtPage />
    <aside>
      <NuxtPage name="sidebar" />
    </aside>
  </div>
</template>

Navigating to /parent/child renders child.vue into the default outlet and child@sidebar.vue into the sidebar outlet. This has actually been possible in Vue Router for a long time; this release wires it up to Nuxt's file-based routing.

[!NOTE]
definePageMeta is read from the default route file only, and per-view rendering modes aren't supported (the parent page's mode applies to the default view).

📖 Named views documentation

🚦 enabled Option for useFetch and useAsyncData

You can now gate data fetching with a reactive enabled option (#​33260). While enabled is false, every execution is blocked (the initial fetch, execute/refresh, and watch triggers), and if you flip it from true to false mid-flight, the in-flight request is cancelled without clearing your existing data.

<script setup lang="ts">
const query = ref('')

const { data } = await useFetch('/api/search', {
  query: { q: query },
  // Only fetch once the user has typed something
  enabled: () => query.value.length > 2,
})
</script>

This is perfect for dependent or conditional queries, where you don't want to fire a request until some precondition is met. It pairs naturally with a getter or a ref, so it stays reactive.

📖 useAsyncData documentation

🔗 NuxtLink Prefetch Control for Custom Slots

When you use <NuxtLink> with the custom prop, Nuxt no longer attaches prefetch handlers for you, because it can't know how you've structured your markup. To make that ergonomic, the slot now exposes everything you need to wire prefetching up yourself (#​34539):

<template>
  <NuxtLink
    v-slot="{ href, navigate, prefetch, prefetched, shouldPrefetch }"
    to="/about"
    custom
  >
    <a
      :href="href"
      :class="{ 'is-prefetched': prefetched }"
      @click="navigate"
      @pointerenter="shouldPrefetch('interaction') && prefetch()"
      @focus="shouldPrefetch('interaction') && prefetch()"
    >
      About page
    </a>
  </NuxtLink>
</template>

You get prefetch to trigger it, prefetched to know whether it's already happened (great for a prefetched class), and shouldPrefetch to respect the user's connection and config.

📖 NuxtLink documentation

⚡️ Forwarded Preload Hints on Prefetch

Here's another one we'd love you to try. When you prefetch a link to a route with payload extraction, Nuxt already primes the destination's data and chunks. With the new opt-in experimental.prefetchPreloadTags (#​35144), it also forwards the destination's <link rel="preload"> and modulepreload hints (whatever the page sets via useHead, or via modules like @nuxt/image's <NuxtImg preload>) into the current document, downgraded to rel="prefetch" so they don't compete with the resources the user is looking at right now.

// nuxt.config.ts
export default defineNuxtConfig({
  experimental: {
    prefetchPreloadTags: true,
  },
})

The practical effect is that heavy above-the-fold assets on the next page (a hero image, a critical script) start downloading while the user is still on the current one, so the navigation feels instant. It's off by default while we gather feedback, so please give it a spin and tell us how it behaves on your app.

🌐 import.meta.envName

The resolved Nuxt environment name is now available at runtime as import.meta.envName for both Vite and webpack/Rspack builds (#​34844). This is the value set by --envName (or the resolved default), so you can branch on it in your app code:

if (import.meta.envName === 'staging') {
  // enable staging-only behaviour
}

📖 import.meta documentation

🔭 Tracing Channels for SSR Events

Nuxt now publishes diagnostics-channel traces for its server-side subsystems (#​35191). It's unopinionated: we emit nuxt.render, nuxt.island, nuxt.data, and nuxt.plugin channels following the untracing naming convention, and you can build OpenTelemetry (or anything else) on top. It works in Node, Deno, Bun, and Cloudflare Workers.

// nuxt.config.ts
export default defineNuxtConfig({
  // Turn on Nuxt's own channels
  tracingChannel: true,
})

You can also enable it granularly. In Nuxt v5, there will be additional Nitro-level channels:

// nuxt.config.ts
export default defineNuxtConfig({
  tracingChannel: {
    nuxt: true,
  },
})

[!NOTE]
Channel names, payload shapes, and option keys may still change while the untracing registry settles.

📦 Dependency Upgrades

unhead v3

Nuxt's head management now runs on unhead v3 (#​34793). It's smaller, uses a synchronous engine internally, and ships better type-safety for useHead out of the box. This also unblocks SSR streaming.

[!WARNING]
unhead v3 introduces type-narrowing for useHead, which can be a breaking type change if you were relying on the looser v2 types. The runtime behaviour is compatible for the vast majority of apps, and promise input (deprecated in v2) is no longer supported. If you hit type errors after upgrading, they're almost always genuine tightening rather than regressions.

unctx v3

We've moved to unctx v3 (#​35541), which resolves a class of long-standing async context issues (#​33644). This is part of the composable-context reliability work that continues into v5.

And more

We've also updated magic-string to v1, Babel to v8, and pulled in the latest Rolldown across the board. Running nuxt upgrade --dedupe (see below) is the easiest way to pull these through cleanly.

🛠️ Nuxt CLI

This release bundles some improvements from @nuxt/cli v3.36 and v3.37:

• nuxt module remove to uninstall a module and clean up its config (nuxt/cli#1306), the natural companion to nuxt module add.

• Non-interactive nuxt init for scripting and CI (nuxt/cli#1341), plus it now respects the template's own package manager instead of prompting (nuxt/cli#1330).

• Type-check onboarding: nuxt typecheck now offers to install vue-tsc and typescript for you if they're missing (nuxt/cli#1316).

• Golar support for type-checking: nuxt typecheck can now use Golar as an alternative to vue-tsc (nuxt/cli#1362). It's picked up automatically if it's installed (or a golar.config.* file exists), and you can force a checker with --checker=vue-tsc or --checker=golar:

  nuxt typecheck --checker=golar

• Layer-aware dev server: the dev server now reloads on changes to local layer nuxt.config files (nuxt/cli#1345).

🧩 TypeScript Plugin and Named Layout Slots

Nuxt's experimental TypeScript plugin is powered by @dxup/nuxt, and this release bundles a newer version of it. If you haven't tried it, turning on experimental.typescriptPlugin gives you a set of editor niceties: renaming an auto-imported component updates every usage, plus go-to-definition for glob imports, Nitro routes, definePageMeta, runtimeConfig, and typed route names.

New in the bundled version is an opt-in runtime feature: named layout slots (KazariEX/dxup#20). You can write a top-level named-slot template in a page and have it forwarded into the matching named slot of the active layout. That lets a page inject content into its layout's slots, which file-based layouts don't otherwise allow.

Enable it alongside the plugin:

// nuxt.config.ts
export default defineNuxtConfig({
  experimental: {
    typescriptPlugin: true,
  },
  dxup: {
    features: {
      namedLayoutSlots: true,
    },
  },
})

Then a layout can expose named slots:

<!-- layouts/center.vue -->
<template>
  <slot />
  <slot name="side" one="one" />
</template>

And any page using that layout can fill them:

<!-- pages/about.vue -->
<script setup lang="ts">
definePageMeta({ layout: 'center' })
</script>

<template>
  <template #side="{ one }">
    This "{{ one }}" comes from the layout slot.
  </template>
  <div>About page</div>
</template>

📖 typescriptPlugin documentation

🔥 Performance and Reliability

As always, a lot of work has gone into making Nuxt faster and steadier.

One you can opt into today is the shared file watcher (#​35143). Vite already runs a chokidar-based watcher, so Nuxt can piggy-back on it instead of spinning up a second one, using less memory and fewer file handles. This becomes the default with compatibilityVersion: 5, but you can turn it on now and let us know how it goes:

// nuxt.config.ts
export default defineNuxtConfig({
  experimental: {
    watcher: 'builder',
  },
})

There are also some other good performance improvements that don't need to be opted into:

• Faster dev startup: dev-only Nitro and pages work is now deferred and streamlined (#​35381, #​35383).
• Leaner production builds: the island-renderer chunk is skipped entirely when you use no islands (#​35456), and plugin handling is tree-shaken out of prod builds (#​35278).
• Improved island hashing: more stable island and key hashing, with getIslandHash and hashKey now exposed (#​35583).
• Concurrency and I/O wins across Kit path resolution and Nitro inline styles (#​35511, #​35514).

A couple of other nice quality-of-life fixes:

• $fetch is now auto-imported in user code, which fixes edge cases with top-level $fetch.create under Rolldown's output format (#​35581).
• Nuxt now honours system HTTP_PROXY / HTTPS_PROXY environment variables in the builder environment (#​35183).
• HMR now works for defineNuxtComponent in JSX (#​35620).

⚠️ Heads-Up Before Upgrading

As mentioned above, this release includes three major dependency bumps. For most apps they're transparent, but they're worth a moment of attention:

• Vite 8: check custom Vite plugins and config against the Vite migration guide.
• Rspack 2: if you use builder: 'rspack', the internals are now Rsbuild-based, so custom Rspack config may need review.
• unhead v3: possible breaking type changes from stricter useHead typing.

⬆️ Upgrading

Our recommendation for upgrading is to run:

npx nuxt upgrade --dedupe

# or, if you are staying on the 3.x line
npx nuxt@latest upgrade --dedupe --channel=v3

This will deduplicate your lockfile and help ensure you pull in updates from the other dependencies Nuxt relies on, particularly across the unjs ecosystem (which matters more than usual this release, given the major bumps).

[!TIP]
Check out our upgrade guide if you're upgrading from an older version.

Thank you to all of the many contributors to this release. This was a big one, and it wouldn't happen without you. 💚

👉 Changelog

compare changes

🚀 Enhancements

• rspack: Upgrade to rspack v2 (#​34929)
• nuxt: Migrate to unhead v3 (#​34793)
• nuxt: Support named views via filename convention (#​35123)
• nuxt: Expose environment name on import.meta (#​34844)
• nuxt: Forward destination preload hints on link prefetch (#​35144)
• nuxt: Honour http proxy env vars in builder environment (#​35183)
• kit: Support allowImportingTsExtensions (87c214b34)
• nitro,nuxt,schema: Add experimental SSR streaming (5f4efe5a5)
• vite: Migrate to Vite 8 (#​34256)
• nitro,nuxt: Add support for tracing channels for ssr events (#​35191)
• kit,nitro,nuxt,schema,vite,webpack: nuxt/* build output contract (#​35463)
• nuxt: Expose NuxtLink prefetch props for custom slot (#​34539)
• rspack: Use rspack-specific Vue loader (a085e8e34)
• rspack: Use rspack-specific Vue loader (#​35566)
• nuxt,vite: Attach vite HMR to the shared dev server listener (a8ea0c7e2)
• nuxt: Add enabled option to AsyncData (#​33260)
• rspack: Use rsbuild dev server in middleware mode (#​35575)
• nuxt: Expose getIslandHash + hashKey + improve hash for keys (#​35583)
• nuxt: Add useLayout composable for accessing the resolved route layout (#​35623)
• nuxt: Support enabled option in useFetch (#​35627)
• Error code system (#​35429)
• nuxt: Require keyed function 'source' with compatibilityVersion 5 (d56662647)
• kit: Order layer aliases before generic root aliases (~, @) (#​35641)
• kit: Add updateAppConfig util for module authors (#​35651)
• nuxt: Warn when parent page lacks NuxtPage (#​35639)

🔥 Performance

• nuxt,vite: Reuse vite watcher via experimental.watcher (#​35143)
• nuxt: Tree-shake unneeded plugin handling from prod builds (#​35278)
• nuxt: Defer dev-only nitro startup work (#​35381)
• nuxt: Reduce dev pages startup work (#​35383)
• vite: Skip unnecessary decorator transforms (#​35395)
• nuxt,rspack,vite,webpack: Migrate to rolldown-string (#​35058)
• nitro,nuxt,vite: Remove unused dependencies (#​34861)
• nuxt: Re-parse transformed file once in tree-shake plugin (#​35509)
• nuxt: Index scanned components by name to avoid quadratic lookup (#​35510)
• kit: Stat paths directly and probe extensions in parallel (#​35511)
• nitro: Load inline style chunks concurrently (#​35514)
• nuxt: Skip island-renderer chunk when no islands used (#​35456)

🩹 Fixes

• nuxt: Fix explicit return types of factory types (40a80ec7d)
• vite: Do not await ready event for vite watcher (6fe539f52)
• vite: Invalidate modules for legacy vite server (#​35315)
• kit,nuxt: Pass error as cause when we re-throw (#​35387)
• nuxt: Make virtual module IDs stable across hosts (#​35317)
• vite: Inline CSS for lazy components imported from #components (#​35215)
• nuxt: Validate <ClientOnly> fallback tag name (#​35325)
• vite: Extract server page CSS when inlineStyles is disabled (#​35209)
• nitro: Include nested layers in nitro transforms (#​35327)
• kit: Don't exclude layer module runtime files from app tsconfig (#​35326)
• nitro: Export empty styles object with ssr: false (#​35330)
• nuxt: Emit auto-import paths as files, not directories (#​35333)
• nuxt: Suppress spurious slot warning in NuxtPage during nav (#​35335)
• vite: Preserve backslash separators in windows named pipe path (#​35336)
• nuxt: Detach in-flight promise on useAsyncData teardown (#​35328)
• nuxt: Respect per-page keepalive set via definePageMeta (#​34526)
• nuxt: Align useFetch error type with runtime (#​35346)
• nuxt: Unwrap getter body in useFetch (#​35343)
• rspack,webpack: Strip invalid webpack PURE annotations (#​35386)
• nuxt: Guard against -1 when unregistering a router hook (#​35391)
• nuxt: Clean up load/error listeners in preloadPayload (#​35392)
• nuxt: Avoid idle wait when refreshing data after hydration (#​35358)
• nuxt: Hash serialized island props (#​35356)
• nuxt: Ensure page:start finishes before page:finish starts (#​35408)
• vite: Invalidate lazily-created SSR modules on render (#​35410)
• nuxt: Preserve plugin navigation during app boot (#​35344)
• vite: Invalidate stale SSR virtual modules on render (#​35413)
• nitro: Don't preload JS for lazy-hydrated components (#​35342)
• vite: Add extension to vite-node-runner virtual specifier (0bf3f1d5d)
• vite: Invalidate ssr copy of regenerated templates (33a581ce7)
• vite: Set define for NODE_ENV and __VUE_PROD_DEVTOOLS__ (#​35444)
• vite: Avoid emitted ssr styles file name collisions (#​35432)
• nuxt: Avoid syncing route too early when reused page remounts ([#​35440](https://

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