breaking: remove $lib in favor of #lib - #16360
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…lt-in subpath imports The `#` prefix is reserved by Node for [subpath imports](https://nodejs.org/api/packages.html#subpath-imports), making it a more standard-compatible way to define project-internal aliases. SvelteKit no longer generates a Vite alias or tsconfig paths for `$lib` automatically. Instead, declare the alias in your `package.json` `imports` field: ```json { "imports": { "#lib": "./src/lib/index.js", "#lib/*": "./src/lib/*" } } ``` Then in your code replace `import { foo } from '$lib/foo.js'` with `import { foo } from '#lib/foo.js'`.
…ge transform the import aliases into relative files
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🦋 Changeset detectedLatest commit: ead56b8 The changes in this PR will be included in the next version bump. This PR includes changesets to release 3 packages
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$lib in favor of #lib$lib in favor of #lib
teemingc
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Jul 15, 2026
teemingc
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Jul 15, 2026
teemingc
reviewed
Jul 15, 2026
Co-authored-by: Tee Ming <chewteeming01@gmail.com>
Rich-Harris
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Jul 16, 2026
Rich-Harris
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Jul 16, 2026
Rich-Harris
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Jul 16, 2026
teemingc
reviewed
Jul 16, 2026
teemingc
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Jul 16, 2026
Co-authored-by: Tee Ming <chewteeming01@gmail.com>
Rich-Harris
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the preview deployment will fail until we release this and update svelte.dev to use |
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This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to version-3, this PR will be updated.⚠️ ⚠️ ⚠️ ⚠️ ⚠️ ⚠️ `version-3` is currently in **pre mode** so this branch has prereleases rather than normal releases. If you want to exit prereleases, run `changeset pre exit` on `version-3`.⚠️ ⚠️ ⚠️ ⚠️ ⚠️ ⚠️ # Releases ## @sveltejs/kit@3.0.0-next.9 ### Major Changes - breaking: `handle`'s `resolve` is now typed to always return a `Promise` ([#16352](#16352)) - breaking: replace the `$lib` alias with `#lib` and remove `files.lib` config. ([#16360](#16360)) - breaking: disallow cross-origin form submissions without a `Content-Type` header ([#16347](#16347)) - breaking: Server-only directories (`/server/` in the path) are now treated as server-only everywhere inside the project (except `src/routes` and the assets directory) ([#16360](#16360)) - breaking: delegate CORS handling to Vite for static directory requests during development ([#16357](#16357)) ### Minor Changes - feat: reinstate `$env/static/private`, `$env/dynamic/private`, `$env/static/public`, `$env/dynamic/public` and `$app/environment` as deprecated aliases for `$app/env/private` `$app/env/public` and `$app/env` ([#16334](#16334)) ### Patch Changes - perf: cache the default cookie header parse and avoid allocations in `cookies.get` ([#16341](#16341)) - fix: avoid client-side code being bundled by Cloudflare Wrangler ([#16364](#16364)) - fix: handle rejected streamed server data after delayed loads ([#16268](#16268)) - fix: enable CSRF protection in builds with a non-production `NODE_ENV` value ([#16313](#16313)) ## @sveltejs/package@3.0.0-next.3 ### Minor Changes - feat: transform import aliases into relative imports in files ([#16360](#16360)) ## @sveltejs/adapter-node@6.0.0-next.4 ### Patch Changes - fix: correctly bundle entrypoints on Windows ([#16367](#16367)) - Updated dependencies [[`c1ee782`](c1ee782), [`1a1b3ea`](1a1b3ea), [`6423d98`](6423d98), [`6d1f4f0`](6d1f4f0), [`5ca9906`](5ca9906), [`b148d31`](b148d31), [`5ca9906`](5ca9906), [`9f3d9bb`](9f3d9bb), [`7bfd922`](7bfd922), [`ffa0e3b`](ffa0e3b)]: - @sveltejs/kit@3.0.0-next.9 ## @sveltejs/enhanced-img@1.0.0-next.2 ### Patch Changes - chore: replace the `$lib` alias with `#lib` in docs ([#16360](#16360)) Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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closes #16182
The
$libalias is removed from SvelteKit. You can always get it back by configuring an alias via the kit config:alias: { '$lib': 'src/lib' }. The node-native import map takes its place instead: After configuring it in your package.json ("imports": { "#lib": "./src/lib/index.js", "#lib/*": "./src/lib/*" }) you import from#libinstead of from$lib.Implementation-wise this had a few consequences:
#paths are now transformed into tsconfig path aliases in our generated tsconfig. This preserves the extension-less imports that many probably like/expect. svelte-package will still get the appropriate TS errors of having to type the extension ifmoduleResolution: 'nodenext'is set.$libfiles.libconfig is removedimport '#lib/foo.jsfrom withinsrc/lib/bar/baz.jsit becomesimport '../foo.js'). This is because we don't touch thepackage.jsonand that file contains the dev-time file resolutions (#lib -> src/lib) instead of the dist (would have to be#lib -> distto be correct after publishing)