[Not For Merge]: compiling the library code with React compiler

[sanjaiyan-dev]

Description:
This PR integrates the React Compiler to align the framework with modern React standards and improve overall performance.

Key Benefits:

• Performance: According to Meta’s benchmarks, this can improve initial loads by up to 12% and make interactions up to 2.5× faster.
• Standardization: Follows the latest recommendations for compiling libraries.
• Stability: The compiler is now stable (v1) and has been adopted by major frameworks like Next.js.

Check List

• pnpm run fix for formatting and linting code and docs

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Project	Deployment	Actions	Updated (UTC)
jotai	Ready	Preview, Comment	Mar 6, 2026 2:29pm

[dai-shi]

I'll consider this seriously but not immediately. In the meantime, would anyone like to benchmark the performance difference? Please open a new discussion.

Based on the results, we'll consider when to introduce it.

Closing until then.

[dai-shi]

not immediately

This basically requires react 19 and up. https://react.dev/reference/react-compiler/configuration#version-compatibility
Jotai v3 will support react 18 and up, so the target of this is Jotai v4.

[sanjaiyan-dev]

not immediately

This basically requires react 19 and up. https://react.dev/reference/react-compiler/configuration#version-compatibility Jotai v3 will support react 18 and up, so the target of this is Jotai v4.

Hi, React Compiler supports React 19 and is backward compatible with React 18 and React 17. Please refer to https://react.dev/reference/react-compiler/compiling-libraries#backwards-compatibility for more details. Thank you.

[dai-shi]

I don't love using "react-compiler-runtime" with React 19.

In the mean time, would you like to benchmark the performance difference? Please open a new discussion.

[sanjaiyan-dev]

I don't love using "react-compiler-runtime" with React 19.

In the mean time, would you like to benchmark the performance difference? Please open a new discussion.

Sure I will 🤝

[sanjaiyan-dev]

#3255

@dai-shi

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commit: 6a7eec4

[github-actions]

Preview in LiveCodes

Latest commit: 1e96835
Last updated: Mar 6, 2026 2:28pm (UTC)

Playground	Link
React demo	https://livecodes.io?x=id/8KTBYBUBT

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See documentations for usage instructions.