fix(react-query-next-experimental): replace deprecated 'isServer' with 'environmentManager.isServer()' by sukvvon · Pull Request #10857 · TanStack/query

sukvvon · 2026-06-02T00:51:26Z

🎯 Changes

Migrate react-query-next-experimental from the deprecated isServer export to environmentManager.isServer(), matching the migration already done for react-query/preact-query in #10199 and for vue-query in #10826.

Updated files:

packages/react-query-next-experimental/src/HydrationStreamProvider.tsx
packages/react-query-next-experimental/src/ReactQueryStreamedHydration.tsx

No behavior change — environmentManager.isServer() calls the same underlying check by default while allowing host environments (frameworks, SSR runtimes, tests) to override the server detection.

✅ Checklist

I have followed the steps in the Contributing guide.
I have tested this code locally with `pnpm run test:pr`.

🚀 Release Impact

This change affects published code, and I have generated a changeset.
This change is docs/CI/dev-only (no release).

Summary by CodeRabbit

Chores
- Updated @tanstack/react-query-next-experimental to use the current environment detection method instead of the deprecated approach, ensuring better long-term compatibility and alignment with package standards.

…h 'environmentManager.isServer()'

coderabbitai · 2026-06-02T00:51:39Z

📝 Walkthrough

Walkthrough

This PR migrates server environment detection in @tanstack/react-query-next-experimental from a deprecated isServer flag to the environmentManager.isServer() API. The changeset documents the patch release, and two provider files update their imports and conditionals to use the new method.

Changes

Deprecation Migration: isServer → environmentManager.isServer()

Layer / File(s)	Summary
Migrate server detection to environmentManager `.changeset/react-query-next-experimental-environment-manager-isserver.md`, `packages/react-query-next-experimental/src/HydrationStreamProvider.tsx`, `packages/react-query-next-experimental/src/ReactQueryStreamedHydration.tsx`	Changeset documents patch bump for deprecation replacement. HydrationStreamProvider and ReactQueryStreamedHydration replace `isServer` import with `environmentManager` and update three server-detection conditionals across both files.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Possibly related issues

fix(vue-query): replace deprecated isServer with environmentManager.isServer() #10821: Addresses the same code-level migration—replacing the deprecated isServer export with environmentManager.isServer().

Possibly related PRs

TanStack/query#10826: Concurrent migration replacing deprecated isServer usage with environmentManager.isServer() in the Vue integration.

Suggested reviewers

TkDodo

Poem

🐰 The server-side sleuth hops with glee,
As isServer makes its decree,
Now environmentManager knows the way,
A cleaner check to start the day! 🌞

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: replacing deprecated 'isServer' with 'environmentManager.isServer()' in the react-query-next-experimental package.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	The PR description follows the template structure with all required sections completed: Changes section explains the migration and rationale, Checklist items are marked as completed, and Release Impact indicates a changeset was generated.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

📝 Generate docstrings

Create stacked PR
Commit on current branch

🧪 Generate unit tests (beta)

Create PR with unit tests
Commit unit tests in branch fix/react-query-next-experimental-environment-manager-isserver

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nx-cloud · 2026-06-02T00:51:48Z

View your CI Pipeline Execution ↗ for commit 79db658

Command	Status	Duration	Result
`nx run-many --target=build --exclude=examples/*...`	✅ Succeeded	10s	View ↗
`nx affected --targets=test:sherif,test:knip,tes...`	✅ Succeeded	2m 4s	View ↗

☁️ Nx Cloud last updated this comment at 2026-06-02 00:55:09 UTC

github-actions · 2026-06-02T00:52:05Z

🚀 Changeset Version Preview

4 package(s) bumped directly, 21 bumped as dependents.

🟩 Patch bumps

Package	Version	Reason
`@tanstack/lit-query`	0.2.6 → 0.2.7	Changeset
`@tanstack/query-devtools`	5.100.14 → 5.100.15	Changeset
`@tanstack/react-query-next-experimental`	5.100.14 → 5.100.15	Changeset
`@tanstack/vue-query`	5.100.14 → 5.100.15	Changeset
`@tanstack/angular-query-experimental`	5.100.14 → 5.100.15	Dependent
`@tanstack/angular-query-persist-client`	5.100.14 → 5.100.15	Dependent
`@tanstack/eslint-plugin-query`	5.100.14 → 5.100.15	Dependent
`@tanstack/preact-query`	5.100.14 → 5.100.15	Dependent
`@tanstack/preact-query-devtools`	5.100.14 → 5.100.15	Dependent
`@tanstack/preact-query-persist-client`	5.100.14 → 5.100.15	Dependent
`@tanstack/query-async-storage-persister`	5.100.14 → 5.100.15	Dependent
`@tanstack/query-broadcast-client-experimental`	5.100.14 → 5.100.15	Dependent
`@tanstack/query-core`	5.100.14 → 5.100.15	Dependent
`@tanstack/query-persist-client-core`	5.100.14 → 5.100.15	Dependent
`@tanstack/query-sync-storage-persister`	5.100.14 → 5.100.15	Dependent
`@tanstack/react-query`	5.100.14 → 5.100.15	Dependent
`@tanstack/react-query-devtools`	5.100.14 → 5.100.15	Dependent
`@tanstack/react-query-persist-client`	5.100.14 → 5.100.15	Dependent
`@tanstack/solid-query`	5.100.14 → 5.100.15	Dependent
`@tanstack/solid-query-devtools`	5.100.14 → 5.100.15	Dependent
`@tanstack/solid-query-persist-client`	5.100.14 → 5.100.15	Dependent
`@tanstack/svelte-query`	6.1.33 → 6.1.34	Dependent
`@tanstack/svelte-query-devtools`	6.1.33 → 6.1.34	Dependent
`@tanstack/svelte-query-persist-client`	6.1.33 → 6.1.34	Dependent
`@tanstack/vue-query-devtools`	6.1.33 → 6.1.34	Dependent

pkg-pr-new · 2026-06-02T00:54:47Z

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commit: 79db658

github-actions · 2026-06-02T00:55:10Z

size-limit report 📦

Path	Size
react full	12.11 KB (0%)
react minimal	9.08 KB (0%)

fix(react-query-next-experimental): replace deprecated 'isServer' wit…

79db658

…h 'environmentManager.isServer()'

sukvvon self-assigned this Jun 2, 2026

sukvvon mentioned this pull request Jun 2, 2026

fix(examples/integrations): replace deprecated 'isServer' with 'environmentManager.isServer()' in the Next.js examples #10858

Merged

4 tasks

sukvvon requested a review from TkDodo June 2, 2026 07:18

spiderocious mentioned this pull request Jun 2, 2026

fix(examples): replace deprecated 'isServer' with 'environmentManager.isServer()' in remaining Next.js examples #10860

Merged

4 tasks

TkDodo approved these changes Jun 2, 2026

View reviewed changes

TkDodo merged commit 7cf5923 into main Jun 2, 2026
9 checks passed

TkDodo deleted the fix/react-query-next-experimental-environment-manager-isserver branch June 2, 2026 11:53

github-actions Bot mentioned this pull request Jun 2, 2026

ci: Version Packages #10774

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fix(react-query-next-experimental): replace deprecated 'isServer' with 'environmentManager.isServer()'#10857

fix(react-query-next-experimental): replace deprecated 'isServer' with 'environmentManager.isServer()'#10857
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fix/react-query-next-experimental-environment-manager-isserver

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