Does Vercel support Yarn 3?

Yarn 3 is supported. See Yarn 3's usage guide to get started.

For Vercel to detect and use Yarn 3 instead of Yarn 1, do one of the following:

• enable Corepack for your project
• add yarn to .yarn/releases with yarn set version 3.8.7

If you find bugs or would like to request further support of Yarn 3, please submit feedback here.