TL;DR

TanStack Query and its integrations across frameworks have been updated to replace the deprecated isServer property with environmentManager.isServer(), improving server-side rendering (SSR) compatibility.

Breaking

• Replace usages of isServer with environmentManager.isServer() (determines if code is running on the server). This change impacts Next.js, React Query, Vue Query, and Angular Query integrations.

Fixes Worth Knowing

• Improved detection of custom query hooks within the ESLint plugin (code analysis tool).
• Fixed an issue in the query devtools (debugging interface) where missing query row state could cause errors.

TL;DR

This release improves the stability of the React Query Devtools by preventing crashes when query state is temporarily unavailable and when query keys change.

Breaking

• Next.js Integration: The isServer property is deprecated in @tanstack/react-query-next-experimental. Use environmentManager.isServer() instead.
• Vue Integration: The isServer property is deprecated in @tanstack/vue-query. Use environmentManager.isServer() instead.

New

• ESLint Plugin: The @tanstack/eslint-plugin-query now flags rest destructuring on custom hooks returning Query results, improving code maintainability (requires typed linting).

Fixes Worth Knowing

• React Query Devtools no longer crashes when a cached query state is temporarily unavailable.
• React Query Devtools now correctly identifies queries even when their keys are mutated.

TL;DR

This release updates TanStack Query and its related integrations (Svelte and Vue) to version 5.101.0, bringing dependency updates and under-the-hood improvements to the core query engine.

Fixes Worth Knowing

• Devtools now correctly display query status for all integrations.
• Resolved an issue where certain edge cases could cause stale data to be displayed.

TL;DR

Lit Query now avoids unnecessary re-renders when using function-backed query options, improving performance in Lit (JavaScript UI library) applications.

Fixes Worth Knowing

Redundant Lit component updates are resolved for query options, mutation state, and query results, leading to better application responsiveness.

TL;DR

TanStack Query and its related SolidJS integrations have been updated to improve compatibility with the latest vite-plugin-solid version.

New

No new features were introduced in this release.

Fixes Worth Knowing

No fixes impacting typical usage were included in this release.

Before You Upgrade

If you are using vite-plugin-solid, ensure you upgrade to the next.5 version for optimal compatibility.

TL;DR

TanStack Query now supports passing mutationOptions for more control over mutation behavior (server state management).

New

• Mutation options are now supported, enabling finer-grained control over how mutations are handled within TanStack Query.

Fixes Worth Knowing

• No specific fixes impacting typical usage in this release.