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feat: precompress prerendered .md and .mdx files#15893

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sirkostya009:sirkostya009/adapter-static-precompress-markdown
Jun 16, 2026
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feat: precompress prerendered .md and .mdx files#15893
Rich-Harris merged 4 commits into
sveltejs:mainfrom
sirkostya009:sirkostya009/adapter-static-precompress-markdown

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closes #15891


Please don't delete this checklist! Before submitting the PR, please make sure you do the following:

  • It's really useful if your PR references an issue where it is discussed ahead of time. In many cases, features are absent for a reason. For large changes, please create an RFC: https://github.com/sveltejs/rfcs
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Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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🦋 Changeset detected

Latest commit: e5d3f28

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package
Name Type
@sveltejs/kit Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

sirkostya009 and others added 3 commits May 22, 2026 21:19
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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thank you!

@Rich-Harris Rich-Harris merged commit 03e9f66 into sveltejs:main Jun 16, 2026
23 of 24 checks passed
@github-actions github-actions Bot mentioned this pull request Jun 16, 2026
Rich-Harris pushed a commit that referenced this pull request Jun 18, 2026
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 main, this PR will
be updated.


# Releases
## @sveltejs/enhanced-img@0.11.0

### Minor Changes


- feat: export `EnhancedImgAttributes` type
([#15649](#15649))


### Patch Changes


- fix: exclude imports with `?` character from transformation
([#15617](#15617))
## @sveltejs/kit@2.66.0

### Minor Changes


- feat: precompress prerendered `.md` and `.mdx` files
([#15893](#15893))


- feat: warn the user when they forget to make boolean inputs optional
in their form schemas
([#15804](#15804))


### Patch Changes


- fix: blur active element before component update during navigation so
that blur/focusout handlers fire while old component data is still valid
([#15452](#15452))


- fix: ensure `base` is available from `$service-worker` during
development ([#15882](#15882))


- fix: use correct relative asset paths when rendering an error page for
a missing `__data.json` request
([#15884](#15884))


- fix: preserve active `for await` consumers across `query.live`
reconnects ([#16022](#16022))


- fix: settle `query.live` reconnect promise on all exit paths,
preventing `invalidateAll()` from deadlocking when a live query is
offline or interrupted
([#16022](#16022))


- fix: preserve last value when a `query.live` stream completes without
yielding on reconnect
([#16022](#16022))


- fix: remove `types: ['node']` from generated tsconfig to avoid errors
when `@types/node` is not installed
([#15709](#15709))


- fix: prefer pages over endpoints when prerendering
([#16076](#16076))


- fix: restore snapshots after afterNavigate callbacks
([#16066](#16066))


- fix: support `ws:`/`wss:` and `trusted-types-eval` for CSP sources
([#15938](#15938))


- fix: omit empty `file` inputs from remote form data
([#15898](#15898))


- fix: fail early if a route with `+page` and `+server` is marked as
prerenderable ([#16075](#16075))


- fix: wait a tick before resetting forms
([#15805](#15805))


- fix: `preflight` schemas apply correctly when chained before `for`
([#15863](#15863))


- fix: blank page in SPA mode when root layout `load()` throws
([#15798](#15798))


- fix: pass all unknown options from the `sveltekit` Vite plugin through
to `vite-plugin-svelte`
([#16010](#16010))
## @sveltejs/adapter-node@5.5.5

### Patch Changes


- fix: bundle entrypoints alongside app code
([#16069](#16069))


- fix: log the actual adapter-node listening address
([#15899](#15899))

- Updated dependencies
[[`63f1b0b`](63f1b0b),
[`1dbff3f`](1dbff3f),
[`961ba01`](961ba01),
[`d2e108c`](d2e108c),
[`d2e108c`](d2e108c),
[`d2e108c`](d2e108c),
[`860b3c7`](860b3c7),
[`f8c842c`](f8c842c),
[`d3aa5fe`](d3aa5fe),
[`0dd7659`](0dd7659),
[`03e9f66`](03e9f66),
[`57b7b7b`](57b7b7b),
[`4eabadc`](4eabadc),
[`6fbf2b6`](6fbf2b6),
[`276744d`](276744d),
[`8740132`](8740132),
[`f430a68`](f430a68),
[`1c7a8dc`](1c7a8dc)]:
  - @sveltejs/kit@2.66.0
## @sveltejs/adapter-vercel@6.3.4

### Patch Changes


- fix: prevent missing immutable assets from being cached as 404s for a
year ([#16077](#16077))

- Updated dependencies
[[`63f1b0b`](63f1b0b),
[`1dbff3f`](1dbff3f),
[`961ba01`](961ba01),
[`d2e108c`](d2e108c),
[`d2e108c`](d2e108c),
[`d2e108c`](d2e108c),
[`860b3c7`](860b3c7),
[`f8c842c`](f8c842c),
[`d3aa5fe`](d3aa5fe),
[`0dd7659`](0dd7659),
[`03e9f66`](03e9f66),
[`57b7b7b`](57b7b7b),
[`4eabadc`](4eabadc),
[`6fbf2b6`](6fbf2b6),
[`276744d`](276744d),
[`8740132`](8740132),
[`f430a68`](f430a68),
[`1c7a8dc`](1c7a8dc)]:
  - @sveltejs/kit@2.66.0

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
huskas-2189 pushed a commit to huskas-2189/Bookmark that referenced this pull request Jun 20, 2026
This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [@sveltejs/kit](https://svelte.dev) ([source](https://github.com/sveltejs/kit/tree/HEAD/packages/kit)) | [`2.65.1` → `2.66.0`](https://renovatebot.com/diffs/npm/@sveltejs%2fkit/2.65.1/2.66.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@sveltejs%2fkit/2.66.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@sveltejs%2fkit/2.65.1/2.66.0?slim=true) |

---

### Release Notes

<details>
<summary>sveltejs/kit (@&#8203;sveltejs/kit)</summary>

### [`v2.66.0`](https://github.com/sveltejs/kit/blob/HEAD/packages/kit/CHANGELOG.md#2660)

[Compare Source](https://github.com/sveltejs/kit/compare/@sveltejs/kit@2.65.2...@sveltejs/kit@2.66.0)

##### Minor Changes

- feat: precompress prerendered `.md` and `.mdx` files ([#&#8203;15893](sveltejs/kit#15893))

- feat: warn the user when they forget to make boolean inputs optional in their form schemas ([#&#8203;15804](sveltejs/kit#15804))

##### Patch Changes

- fix: blur active element before component update during navigation so that blur/focusout handlers fire while old component data is still valid ([#&#8203;15452](sveltejs/kit#15452))

- fix: ensure `base` is available from `$service-worker` during development ([#&#8203;15882](sveltejs/kit#15882))

- fix: use correct relative asset paths when rendering an error page for a missing `__data.json` request ([#&#8203;15884](sveltejs/kit#15884))

- fix: preserve active `for await` consumers across `query.live` reconnects ([#&#8203;16022](sveltejs/kit#16022))

- fix: settle `query.live` reconnect promise on all exit paths, preventing `invalidateAll()` from deadlocking when a live query is offline or interrupted ([#&#8203;16022](sveltejs/kit#16022))

- fix: preserve last value when a `query.live` stream completes without yielding on reconnect ([#&#8203;16022](sveltejs/kit#16022))

- fix: remove `types: ['node']` from generated tsconfig to avoid errors when `@types/node` is not installed ([#&#8203;15709](sveltejs/kit#15709))

- fix: prefer pages over endpoints when prerendering ([#&#8203;16076](sveltejs/kit#16076))

- fix: restore snapshots after afterNavigate callbacks ([#&#8203;16066](sveltejs/kit#16066))

- fix: support `ws:`/`wss:` and `trusted-types-eval` for CSP sources ([#&#8203;15938](sveltejs/kit#15938))

- fix: omit empty `file` inputs from remote form data ([#&#8203;15898](sveltejs/kit#15898))

- fix: fail early if a route with `+page` and `+server` is marked as prerenderable ([#&#8203;16075](sveltejs/kit#16075))

- fix: wait a tick before resetting forms ([#&#8203;15805](sveltejs/kit#15805))

- fix: `preflight` schemas apply correctly when chained before `for` ([#&#8203;15863](sveltejs/kit#15863))

- fix: blank page in SPA mode when root layout `load()` throws ([#&#8203;15798](sveltejs/kit#15798))

- fix: pass all unknown options from the `sveltekit` Vite plugin through to `vite-plugin-svelte` ([#&#8203;16010](sveltejs/kit#16010))

### [`v2.65.2`](https://github.com/sveltejs/kit/blob/HEAD/packages/kit/CHANGELOG.md#2652)

[Compare Source](https://github.com/sveltejs/kit/compare/@sveltejs/kit@2.65.1...@sveltejs/kit@2.65.2)

##### Patch Changes

- fix: throw an error when prerendering a root +server.js that returns a non-HTML response ([#&#8203;15994](sveltejs/kit#15994))

- fix: decode base64-serialized fetch bodies before caching them for client-side replay ([#&#8203;16034](sveltejs/kit#16034))

- fix: correctly access explicit dynamic public environment variables from prerendered pages and service workers ([#&#8203;16024](sveltejs/kit#16024))

- fix: allow `preloadCode` to be called during initial page load ([#&#8203;16028](sveltejs/kit#16028))

- fix: send `cache-control: private, no-store` on remote function responses so personalized query results can never be cached by shared caches ([#&#8203;16020](sveltejs/kit#16020))

- fix: preserve the HTTP status and error body when a remote function request fails in transport (e.g. a 401/403 from a `handle` hook), instead of reporting a generic 500 ([#&#8203;16021](sveltejs/kit#16021))

- fix: avoid loading universal nodes during build analysis when the app uses a hash router ([#&#8203;16042](sveltejs/kit#16042))

- fix: correctly serve client entry during development when using the pnpm global virtual store ([#&#8203;16045](sveltejs/kit#16045))

- fix: normalize path separators when comparing config ([#&#8203;16037](sveltejs/kit#16037))

- fix: ensure `building` resolves correctly to allow avoiding build-time explicit environment variable validation ([#&#8203;16058](sveltejs/kit#16058))

- fix: prevent unhandled promise rejections when remote function failures are consumed via `current`/`error` instead of `await` ([#&#8203;16018](sveltejs/kit#16018))

</details>

---

### Configuration

📅 **Schedule**: (UTC)

- Branch creation
  - At any time (no schedule defined)
- Automerge
  - At any time (no schedule defined)

🚦 **Automerge**: Disabled because a matching PR was automerged previously.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Mend Renovate](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yMjAuMCIsInVwZGF0ZWRJblZlciI6IjQzLjIyMC4wIiwidGFyZ2V0QnJhbmNoIjoiZGV2ZWxvcCIsImxhYmVscyI6W119-->

Reviewed-on: https://codeberg.org/huskas-2189/Bookmark/pulls/126
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adapter-static doesn't precompress prerendered .md routes

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