Skip to content

fix: accept every Node.js version from 26 in adapter-vercel (2.x) - #17585

Draft
ali-vercel wants to merge 1 commit into
sveltejs:version-2from
ali-vercel:adapter-vercel-every-node-from-26-v2
Draft

ali-vercel wants to merge 1 commit into
sveltejs:version-2from
ali-vercel:adapter-vercel-every-node-from-26-v2

Conversation

@ali-vercel

Copy link
Copy Markdown
Contributor

Summary

Backport #17584 to version-2, so @sveltejs/adapter-vercel 6.x accepts every Node.js major from 26 onwards, not only even ones.

Context

#17580 backported #17570, which accepts only even Node.js majors (/^nodejs[2-9][02468]\.x$/). From Node.js 27 onwards every major becomes LTS, and Vercel will support every major from 26 onwards. So a SvelteKit 2 build on Node.js 27 would throw Unsupported Node.js version: v27.x. Please use an even Node version.

This uses the same regex as #17584, /^nodejs(2[0246-9]|[3-9]\d)\.x$/. It accepts 20, 22, 24 and every major from 26 to 99. 21, 23 and 25 still throw. The error messages name the supported versions instead of "even". #17580 is not released yet, so both changesets can go out in the same 6.x patch.


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
  • This message body should clearly illustrate what problems it solves.
  • Ideally, include a test that fails without this PR but passes with it.

Tests

  • Run the tests with pnpm test and lint the project with pnpm lint and pnpm check

Changesets

  • If your PR makes a change that should be noted in one or more packages' changelogs, generate a changeset by running pnpm changeset and following the prompts. Changesets that add features should be minor and those that fix bugs should be patch. Please prefix changeset messages with feat:, fix:, or chore:.

Edits

  • Please ensure that 'Allow edits from maintainers' is checked. PRs without this option may be closed.

🤖 Generated with Claude Code

Vercel supports Node 20, 22, 24, and every major from 26 onwards, not
only even ones, so Node 27 builds should resolve to `nodejs27.x`.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@pkg-svelte-dev

Copy link
Copy Markdown

Install the latest version of @sveltejs/kit from 2eca1c0:

pnpm add https://pkg.svelte.dev/@sveltejs/kit/c/2eca1c0981d19c72b9d433487fc239ca3c5b1cba

Open in pkg.svelte.dev: https://pkg.svelte.dev/repos/kit/pr/17585

Note

This PR is from a fork. A maintainer must approve approve each commit before it can be built and installed.

@changeset-bot

changeset-bot Bot commented Oct 30, 2026

Copy link
Copy Markdown

🦋 Changeset detected

Latest commit: 2eca1c0

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

This PR includes changesets to release 1 package
Name Type
@sveltejs/adapter-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

@teemingc teemingc added the pkg:adapter-vercel Pertaining to the Vercel adapter label Nov 1, 2026

This branch has not been deployed

No deployments
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

pkg:adapter-vercel Pertaining to the Vercel adapter

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants