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Use workerd's compatibility date for Cloudflare defaults - #17819

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cloudflare-compatibility-date
Aug 25, 2026
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Use workerd's compatibility date for Cloudflare defaults#17819
matthewp merged 4 commits into
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cloudflare-compatibility-date

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Changes

Testing

  • Cover project-local adapter resolution, derived defaults, and user-provided dates.

Docs

  • No docs update needed; this corrects internal default behavior.

factory Bot and others added 2 commits August 22, 2026 13:24
…scaffolding

Replace `new Date().toISOString().slice(0, 10)` with a hardcoded
`CLOUDFLARE_COMPATIBILITY_DATE` constant. workerd rejects dates newer
than ~7 days past its build date, so using today's date can produce a
wrangler.jsonc that fails immediately.

Fixes #17796
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changeset-bot Bot commented Aug 25, 2026

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🦋 Changeset detected

Latest commit: 9dfd074

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

This PR includes changesets to release 424 packages
Name Type
astro Patch
@astrojs/cloudflare Patch
@e2e/astro-linked-lib Patch
@e2e/actions-blog Patch
@e2e/actions-react-19 Patch
@e2e/astro-component Patch
@e2e/astro-envs Patch
@e2e/astro-island-hydration-error Patch
@test/astro-cloudflare-node-prerender-mdx Patch
@test/astro-cloudflare Patch
@e2e/content-collections Patch
@e2e/csp-server-islands Patch
@e2e/css Patch
@test/custom-client-directives Patch
@e2e/dev-toolbar Patch
@e2e/error-cyclic Patch
@e2e/error-sass Patch
@e2e/errors Patch
@e2e/hydration-race Patch
@e2e/i18n Patch
@test/nested-style-bug-e22e Patch
@e2e/preact-compat-component Patch
@e2e/preact-component Patch
@e2e/preact-lazy-component Patch
@e2e/prefetch Patch
@e2e/react-component Patch
@e2e/server-islands-key Patch
@e2e/server-islands Patch
@e2e/solid-circular Patch
@e2e/solid-component Patch
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@e2e/e2e-tailwindcss Patch
@e2e/ts-resolution Patch
@e2e/view-transitions Patch
@e2e/vue-component Patch
@performance/md Patch
@performance/mdoc Patch
@performance/mdx Patch
@test/0-css Patch
fake-astro-library Patch
@test/actions Patch
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@test/css-server-output-dedup Patch
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custom-fetch-error-pages Patch
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@test/dev-request-url Patch
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@test/request-signal Patch
@test/reuse-injected-entrypoint Patch
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@test/scoped-style-strategy Patch
@test/server-entry-fake-adapter Patch
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@test/sourcemap Patch
@test/space-in-folder-name Patch
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@test/astro-cloudflare-prerender-node-env Patch
@test/astro-cloudflare-prerender-queue-consumers Patch
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@test/astro-cloudflare-prerenderer-errors Patch
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@test/routing-priority-cloudflare Patch
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@github-actions github-actions Bot added pkg: integration Related to any renderer integration (scope) pkg: astro Related to the core `astro` package (scope) labels Aug 25, 2026
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⚠️ Dependency Count

This PR adds 37 new dependencies (2127 → 2164), which exceeds the threshold of 10.

📊 Dependency Size Changes

Warning

This PR adds 219.7 MB of new dependencies, which exceeds the threshold of 100 kB.

📦 Package 📏 Size
@cloudflare/workerd-linux-64@1.20260820.1 151.4 MB
miniflare@5.20260820.0-alpha 26.4 MB
wrangler@4.125.0 24.5 MB
@esbuild/linux-x64@0.28.1 11.4 MB
@cloudflare/workers-types@4.20260527.1 → @cloudflare/workers-types@5.20260825.1 -9.6 MB
@cloudflare/vite-plugin@1.39.0 → @cloudflare/vite-plugin@1.53.1 8.6 MB
workerd@1.20260820.1 5 MB
undici@7.29.0 1.6 MB
ws@8.21.0 151.1 kB
esbuild@0.28.1 147 kB

Total size change: 219.7 MB

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Merging this PR will improve performance by 16.82%

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 1 improved benchmark
✅ 20 untouched benchmarks

Performance Changes

Mode Benchmark BASE HEAD Efficiency
Simulation Build: full server site 1.6 s 1.4 s +16.82%

Tip

Curious why performance improved? Comment @codspeedbot explain why performance improved on this PR, or directly use the CodSpeed MCP with your agent.


Comparing cloudflare-compatibility-date (9dfd074) with main (a0d2fe3)1

Open in CodSpeed

Footnotes

  1. No successful run was found on main (89e5349) during the generation of this report, so a0d2fe3 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.

@matthewp
matthewp marked this pull request as ready for review August 25, 2026 13:57
Comment thread packages/integrations/cloudflare/package.json
@matthewp
matthewp merged commit 633855b into main Aug 25, 2026
30 checks passed
@matthewp
matthewp deleted the cloudflare-compatibility-date branch August 25, 2026 15:07
@astrobot-houston astrobot-houston mentioned this pull request Aug 25, 2026
dadezzz pushed a commit to dadezzz/university_notes that referenced this pull request Aug 29, 2026
This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [astro](https://astro.build) ([source](https://github.com/withastro/astro/tree/HEAD/packages/astro)) | [`7.2.6` → `7.2.7`](https://renovatebot.com/diffs/npm/astro/7.2.6/7.2.7) | ![age](https://developer.mend.io/api/mc/badges/age/npm/astro/7.2.7?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/astro/7.2.6/7.2.7?slim=true) |

---

### Release Notes

<details>
<summary>withastro/astro (astro)</summary>

### [`v7.2.7`](https://github.com/withastro/astro/blob/HEAD/packages/astro/CHANGELOG.md#727)

[Compare Source](https://github.com/withastro/astro/compare/astro@7.2.6...astro@7.2.7)

##### Patch Changes

- [#&#8203;17415](withastro/astro#17415) [`55d38c8`](withastro/astro@55d38c8) Thanks [@&#8203;iseraph-dev](https://github.com/iseraph-dev)! - Deserializes each route once when loading the SSR manifest

- [#&#8203;17772](withastro/astro#17772) [`023b48b`](withastro/astro@023b48b) Thanks [@&#8203;matthewp](https://github.com/matthewp)! - Fixes route selection for normalized request paths in adapter and development request handling

- [#&#8203;17819](withastro/astro#17819) [`633855b`](withastro/astro@633855b) Thanks [@&#8203;matthewp](https://github.com/matthewp)! - Updates generated and default Cloudflare `compatibility_date` values to match the installed runtime and requires Wrangler `^4.125.0`

- [#&#8203;17813](withastro/astro#17813) [`ae26d18`](withastro/astro@ae26d18) Thanks [@&#8203;matthewp](https://github.com/matthewp)! - Fixes `rewrite()` and `next(payload)` for GET and HEAD requests with host-provided bodies

- [#&#8203;17816](withastro/astro#17816) [`a0d2fe3`](withastro/astro@a0d2fe3) Thanks [@&#8203;astro-factory](https://github.com/apps/astro-factory)! - Fixes the experimental `svgOptimizer` not generating unique per-file ID prefixes when using SVGO's `prefixIds` plugin

</details>

---

### Configuration

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🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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

---

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---

This PR has been generated by [Mend Renovate CLI](https://github.com/renovatebot/renovate).
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[Cloudflare] astro add can generate a compatibility_date unsupported by the installed workerd

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