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[next] Apply routes-manifest onMatchHeaders#14903

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mischnic merged 4 commits intomainfrom
mischnic/next-onMatchHeaders
Feb 6, 2026
Merged

[next] Apply routes-manifest onMatchHeaders#14903
mischnic merged 4 commits intomainfrom
mischnic/next-onMatchHeaders

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@mischnic mischnic commented Feb 6, 2026

Corresponds to vercel/next.js#89593

@mischnic mischnic requested review from a team, huozhi, ijjk, timneutkens and ztanner as code owners February 6, 2026 15:12
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changeset-bot bot commented Feb 6, 2026

🦋 Changeset detected

Latest commit: 9bd37d6

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

This PR includes changesets to release 2 packages
Name Type
@vercel/next Patch
vercel Patch

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

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github-actions bot commented Feb 6, 2026

📦 CLI Tarball Ready

The Vercel CLI tarball for this PR is now available!

Quick Test

You can test this PR's CLI directly by running:

npx https://vercel-dhh8eo64d.vercel.sh/tarballs/vercel.tgz --help

Use in vercel.json

To use this CLI version in your project builds, add to your vercel.json:

{
  "build": {
    "env": {
      "VERCEL_CLI_VERSION": "vercel@https://vercel-dhh8eo64d.vercel.sh/tarballs/vercel.tgz"
    }
  }
}

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github-actions bot commented Feb 6, 2026

🧪 Unit Test Strategy

Comparing: 4f4db9a9bd37d6 (view diff)

Strategy: Affected packages only

✅ Only testing packages that have been modified or depend on modified packages.

Affected packages - 2 (5%)
  1. @vercel/next
  2. vercel
Unaffected packages - 38 (95%)
  1. @vercel-internals/get-package-json
  2. @vercel/backends
  3. @vercel/build-utils
  4. @vercel/cervel
  5. @vercel/cli-auth
  6. @vercel/client
  7. @vercel/config
  8. @vercel/detect-agent
  9. @vercel/edge
  10. @vercel/elysia
  11. @vercel/error-utils
  12. @vercel/express
  13. @vercel/fastify
  14. @vercel/firewall
  15. @vercel/frameworks
  16. @vercel/fs-detectors
  17. @vercel/functions
  18. @vercel/gatsby-plugin-vercel-builder
  19. @vercel/go
  20. @vercel/h3
  21. @vercel/hono
  22. @vercel/hydrogen
  23. @vercel/koa
  24. @vercel/nestjs
  25. @vercel/node
  26. @vercel/oidc
  27. @vercel/oidc-aws-credentials-provider
  28. @vercel/python
  29. @vercel/python-analysis
  30. @vercel/redwood
  31. @vercel/related-projects
  32. @vercel/remix-builder
  33. @vercel/routing-utils
  34. @vercel/ruby
  35. @vercel/rust
  36. @vercel/static-build
  37. @vercel/static-config
  38. examples

Results

  • Unit tests: Only affected packages will run unit tests
  • E2E tests: Handled separately (Version Packages PRs or run-e2e-tests label)
  • Type checks: Only affected packages will run type checks

This comment is automatically generated based on the affected testing strategy

@mischnic mischnic merged commit a172b3c into main Feb 6, 2026
185 checks passed
@mischnic mischnic deleted the mischnic/next-onMatchHeaders branch February 6, 2026 16:46
ijjk pushed a commit that referenced this pull request Feb 6, 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
## vercel@50.13.0

### Minor Changes

- Adds experimental support for embedding Vercel Flags definitions
during build. ([#14838](#14838))

When `VERCEL_EXPERIMENTAL_EMBED_FLAG_DEFINITIONS=1` is set, the CLI
scans environment variables for Vercel Flags SDK keys (prefixed with
`vf_`) and fetches their flag definitions. The definitions are written
to a synthetic `@vercel/flags-definitions` module in `node_modules` that
can be imported at runtime.

### Patch Changes

- Updated dependencies
\[[`a172b3c68ba75bf8f9e517fe476cebe2e32bdb8c`](a172b3c),
[`d59e76b47c3a491afe5dff6ee76224ed77ac8d74`](d59e76b)]:
    -   @vercel/next@4.15.25

## @vercel/next@4.15.25

### Patch Changes

- [next] Apply routes-manifest onMatchHeaders
([#14903](#14903))

- Make adapters flag explicit value for opt-in
([#14905](#14905))

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
mischnic added a commit to vercel/next.js that referenced this pull request Feb 6, 2026
When proxying through multiple projects, this header would get overwritten by the proxy project:
- the header would be the proxy's deployment id
- `process.env.NEXT_DEPLOYMENT_ID` would be the origin's deployment id

Needs vercel/vercel#14903
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