release-2026-09-16-2153
TanStack/routerrelease-2026-09-16-2153Sep 16, 2026by github-actions[bot]
Upgrading?
AI Summary
This release focuses on optimizing the router-core package by improving the efficiency of the replaceEqualDeep utility function through various micro-optimizations.
Key Highlights
- Reduced memory allocations in the replaceEqualDeep utility function
- Split replaceEqualDeep into an equality scan and a copy phase
- Optimized handling of plain objects and skipped symbol enumeration
- Implemented lazy allocation for replaceEqualDeep copies
Full Release Notes
Release 2026-09-16 21:53 ## Changes ### Performance - router-core: reduce replaceEqualDeep allocations (#8411) (ce10dcd4d9) by @Sheraff - router-core: split replaceEqualDeep into an equality scan and a copy phase (#8389) (bbd2336b84) by @schiller-manuel - router-core: skip symbol enumeration for plain replaceEqualDeep inputs (#8364) (01035782e5) by @schiller-manuel - router-core: check plain objects by constructor (#8363) (cecae5440b) by @schiller-manuel - router-core: allocate replaceEqualDeep copies lazily (#8362) (84936cc045) by @schiller-manuel ## Packages - @tanstack/react-router@1.170.38 - @tanstack/react-start@1.168.56 - @tanstack/react-start-client@1.168.36 - @tanstack/react-start-rsc@0.1.55 - @tanstack/react-start-server@1.167.43 - @tanstack/router-cli@1.167.38 - @tanstack/router-core@1.171.32 - @tanstack/router-generator@1.167.38 - @tanstack/router-plugin@1.168.40 - @tanstack/router-vite-plugin@1.167.40 - @tanstack/solid-router@1.170.36 - @tanstack/solid-start@1.168.54 - @tanstack/solid-start-client@1.168.35 - @tanstack/solid-start-server@1.167.42 - @tanstack/start-client-core@1.170.32 - @tanstack/start-plugin-core@1.171.46 - @tanstack/start-server-core@1.169.37 - @tanstack/start-static-server-functions@1.167.37 - @tanstack/start-storage-context@1.167.34 - @tanstack/vue-router@1.170.35 - @tanstack/vue-start@1.168.53 - @tanstack/vue-start-client@1.167.38 - @tanstack/vue-start-server@1.167.42
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