Zod 4 is now in beta

[colinhacks]

I'm posting this issue to all the libraries currently listed in the Ecosystem section of Zod's README. Apologies for the spam! But I can't think of a better way to notify the ecosystem :)

Zod 4 is now in beta

Hello! Colin here, creator of Zod. Thank you for contributing this package to the Zod ecosystem!

FYI, the first beta of Zod 4 has been released. It will be in beta for 4 weeks to allow time for ecosystem libraries (such as yours) to implement support before the first stable version is released.

Announcement post: https://v4.zod.dev/v4
Migration guide: https://v4.zod.dev/v4/changelog (note the "Internal changes" section in particular)

⚠️ Note — To avoid confusion and outdated information, I'm starting the ecosystem page fresh with v4. You'll need to implement support for Zod 4 (guidance below). Once you've done that, submit a PR adding yourself to this file: https://github.com/colinhacks/zod/blob/v4/packages/docs/components/ecosystem.tsx

Migration

The beta period for Zod 4 will last roughly four weeks. The first stable version will be released in mid-May. Keep an eye on this PR to track progress: colinhacks/zod#4074

There have been some significant changes. It would be difficult to enumerate all the internal changes, but here is a quick summary:

• A new library @zod/mini has been released with a treeshakable/functional API that mirrors Zod's.

• To facilitate code sharing between zod and @zod/mini, they both have a dependency on a new common core library @zod/core.

• This new package implements the schema subclasses that are then extended by zod and @zod/mini (and potentially future libraries). It makes it easy to support all these libraries simultaneously, with just one peerDependency on your end.

  pnpm install @zod/core@^0.0.1
  

This page is intended as a jumping-off point with some guidance for library authors: https://v4.zod.dev/packages/core

Don't hesitate to reach out for help/guidance!

• Post to the #zod4 channel on the Discord
• Open an issue/discussion on the repo
• DM me on Discord or X

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You guys maintain a particularly important set of libraries. You'll definitely find some interested stuff in the launch post: z.toJSONSchema, metadata & registries, etc. Let me know how I can help with migration!

[agustinbarrientos]

+1

Thanks for this incredible contribution

[theBGuy]

+1 Is there any update?

[m-rutherford]

Would also be interested in any updates on plans to support zod4. Our team is using @anatine/zod-nestjs but it appears to only support zod3 currently.