It would be really great to have yarn 4 support in Vercel. Currently our project only needs it for static builds, but ideally it would be fully supported. Yarn is a very popular package manager, and yarn 4 has been out for nearly a year.

Yarn 2+ dependency caching is now supported! [image] Yarn 2+ dependency caching now supported - Vercel Vercel's build cache now supports Yarn 2+ dependencies. Previously, dependencies were only cached for npm, pnpm, and Yarn 1. For Yarn 4, make sure you enab…

Hey, @robinclowers ! Welcome to the Vercel Community :smile: Thanks for the feedback! I’ve shared it with our team internally and will loop back with any comments.

Additionally, Storybook no longer “officially” supports yarn 1 (classic) as of version 8 of Storybook. So it would be nice if Vercel supported a version of yarn > v1

Thanks, @russholio ! I’ve shared this internally.

Thanks for pointing this, @robinclowers ! It would be great to have this soon

@robinclowers They’ve released corepack support, which makes it possible to use any package manager, check it out: Configuring a Build

Unfortunately even with corepack, yarn 4 still doesn’t work: Error: Dynamic require of "util" is not supported , you are still subject to the list of supported package managers: Package Managers .

We would appreciate Yarn 4 support as well. In our case, we were expecting to be able to use the workspace protocol. We will try corepack, but the experimental warnings in the docs and @robinclowers experience are not very encouraging.

Not understanding why Vercel would not have support for yarn 4.x given that 1.x is supported. Was there product team thinking like “maybe yarn 2.x+ won’t be adopted?” It’s the equivalent of, “we support rotary phones but not push buttons.” There’s a large project I would bring over from Netlify if…

If you are seeing Error: Dynamic require of "util" is not supported with Yarn 4, there are currently two work arounds to consider: Remove "type": "module" from the project’s package.json Install yarn into the project instead of using corepack with yarn set version [desired-version] --yarn-path C…

Yarn 4 support

Feedback

amyegan (Amy Egan) April 7, 2025, 1:34pm 12

Yarn 2+ dependency caching is now supported!

For Yarn 4, make sure you enable Corepack as recommended by Yarn

1 Like

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Yarn 4 support

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