experimental: unstable ssrSafe middleware

[dai-shi]

Related Bug Reports or Discussions

#2740

Summary

Add unstable_ssrSafe middleware

Check List

• pnpm run fix for formatting and linting code and docs

[vercel]

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Project	Deployment	Preview	Comments	Updated (UTC)
zustand-demo	Ready	Preview	Comment	Nov 29, 2025 10:33pm

[codesandbox-ci]

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[pkg-pr-new]

• demo

• starter

  npm i https://pkg.pr.new/zustand@3308
  

commit: cc1ec33

[github-actions]

Size Change: +241 B (+1.9%)

Total Size: 12.9 kB

Filename	Size	Change
./dist/esm/middleware.mjs	3.99 kB	+120 B (+3.1%)
./dist/middleware.js	4 kB	+121 B (+3.12%)

ℹ️ View Unchanged

Filename	Size
./dist/esm/index.mjs	64 B
./dist/esm/middleware/immer.mjs	212 B
./dist/esm/react.mjs	342 B
./dist/esm/react/shallow.mjs	198 B
./dist/esm/shallow.mjs	82 B
./dist/esm/traditional.mjs	412 B
./dist/esm/vanilla.mjs	405 B
./dist/esm/vanilla/shallow.mjs	557 B
./dist/index.js	244 B
./dist/middleware/immer.js	231 B
./dist/react.js	357 B
./dist/react/shallow.js	213 B
./dist/shallow.js	189 B
./dist/traditional.js	426 B
./dist/vanilla.js	418 B
./dist/vanilla/shallow.js	568 B

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