perf(react-router): direct export of CatchBoundary class component, remove function wrapper by Sheraff · Pull Request #8068 · TanStack/router

Sheraff · 2026-08-14T13:00:27Z

minor change to reduce bundle size.
technically not exactly the same at runtime, but for all intents and purposes it should be equivalent.

Summary by CodeRabbit

New Features
- CatchBoundary is now directly available as a React class component, providing a more consistent integration option for applications using React Router.
Bug Fixes
- Improved the component’s public export behavior without changing its supported props or error-handling capabilities.
Documentation
- Added a patch release note documenting the updated CatchBoundary export.

… remove function wrapper

nx-cloud · 2026-08-14T13:01:02Z

View your CI Pipeline Execution ↗ for commit fb35c8e

Command	Status	Duration	Result
`nx affected --targets=test:eslint,test:unit,tes...`	✅ Succeeded	15m 26s	View ↗
`nx run-many --target=build --exclude=examples/*...`	✅ Succeeded	2m 10s	View ↗

☁️ Nx Cloud last updated this comment at 2026-08-14 22:04:17 UTC

github-actions · 2026-08-14T13:01:56Z

🚀 Changeset Version Preview

4 package(s) bumped directly, 19 bumped as dependents.

🟩 Patch bumps

Package	Version	Reason
`@tanstack/react-router`	1.170.28 → 1.170.29	Changeset
`@tanstack/router-core`	1.171.23 → 1.171.24	Changeset
`@tanstack/solid-router`	1.170.26 → 1.170.27	Changeset
`@tanstack/vue-router`	1.170.25 → 1.170.26	Changeset
`@tanstack/react-start`	1.168.45 → 1.168.46	Dependent
`@tanstack/react-start-client`	1.168.26 → 1.168.27	Dependent
`@tanstack/react-start-rsc`	0.1.44 → 0.1.45	Dependent
`@tanstack/react-start-server`	1.167.33 → 1.167.34	Dependent
`@tanstack/router-cli`	1.167.29 → 1.167.30	Dependent
`@tanstack/router-generator`	1.167.29 → 1.167.30	Dependent
`@tanstack/router-plugin`	1.168.31 → 1.168.32	Dependent
`@tanstack/router-vite-plugin`	1.167.31 → 1.167.32	Dependent
`@tanstack/solid-start`	1.168.43 → 1.168.44	Dependent
`@tanstack/solid-start-client`	1.168.25 → 1.168.26	Dependent
`@tanstack/solid-start-server`	1.167.32 → 1.167.33	Dependent
`@tanstack/start-client-core`	1.170.23 → 1.170.24	Dependent
`@tanstack/start-plugin-core`	1.171.35 → 1.171.36	Dependent
`@tanstack/start-server-core`	1.169.27 → 1.169.28	Dependent
`@tanstack/start-static-server-functions`	1.167.28 → 1.167.29	Dependent
`@tanstack/start-storage-context`	1.167.25 → 1.167.26	Dependent
`@tanstack/vue-start`	1.168.42 → 1.168.43	Dependent
`@tanstack/vue-start-client`	1.167.28 → 1.167.29	Dependent
`@tanstack/vue-start-server`	1.167.32 → 1.167.33	Dependent

coderabbitai · 2026-08-14T13:02:00Z

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 90a7cadb-846b-49f7-97af-4669e1f23b8b

📥 Commits

Reviewing files that changed from the base of the PR and between 53b63cf and 92b5e04.

📒 Files selected for processing (2)

.changeset/whole-bikes-grin.md
packages/react-router/src/CatchBoundary.tsx

📝 Walkthrough

Walkthrough

CatchBoundary is now exported directly as a React component class. The patch changeset records this API change.

Changes

CatchBoundary export

Layer / File(s)	Summary
Direct class export and release metadata `packages/react-router/src/CatchBoundary.tsx`, `.changeset/whole-bikes-grin.md`	The functional wrapper is removed. The `CatchBoundary` React component class is exported directly. A patch changeset records the change.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk:⚪ Minimal · up to 92b5e

This localized change directly exports the CatchBoundary class component and removes its function wrapper; no actionable merge-blocking risk remains beyond normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: directly exporting the CatchBoundary class component and removing its function wrapper.

✨ 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 bundle-react-router-direct-export-class-catchboundary-component

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

_{Comment @coderabbitai help to get the list of available commands.}

github-actions · 2026-08-14T13:04:14Z

Bundle Size Benchmarks

Commit: 1fa995f3b7a4
Measured at: 2026-08-14T21:48:08.072Z
Baseline source: history:bdaf73a4063e
Dashboard: bundle-size history

The following scenarios have bundle-size changes compared with the baseline:

Scenario	Current (gzip)	Delta vs baseline	Initial gzip	Raw	Brotli	Trend
`react-router.minimal`	83.83 KiB	-12 B (-0.01%)	83.69 KiB	262.42 KiB	72.92 KiB	█▂▂▂▂▂▂▆▆▅▂▁
`react-router.full`	87.32 KiB	-10 B (-0.01%)	87.18 KiB	274.13 KiB	75.85 KiB	█▃▃▃▃▃▃▆▆▄▂▁
`react-start.minimal`	96.62 KiB	-19 B (-0.02%)	96.48 KiB	304.65 KiB	83.73 KiB	█▃▃▃▃▃▃▆▆▄▂▁
`react-start.deferred-hydration`	97.35 KiB	-24 B (-0.02%)	96.51 KiB	306.01 KiB	84.35 KiB	█▃▃▃▃▃▃▆▆▄▂▁
`react-start.full`	99.80 KiB	+2 B (+0.00%)	99.67 KiB	314.37 KiB	86.51 KiB	█▃▃▃▃▃▃▆▆▃▁▁
`react-start.rsbuild.minimal`	99.96 KiB	-15 B (-0.01%)	99.79 KiB	315.03 KiB	86.24 KiB	█▁▁▁▁▁▁▆▆▅▂▁
`react-start.rsbuild.minimal-iife`	100.37 KiB	-14 B (-0.01%)	100.21 KiB	315.97 KiB	86.58 KiB	█▁▁▁▁▁▁▆▆▆▂▁
`react-start.rsbuild.full`	103.29 KiB	-11 B (-0.01%)	103.12 KiB	325.12 KiB	88.94 KiB	█▁▁▁▁▁▁▅▅▅▂▁

Current gzip tracks all emitted client JS chunks. Initial gzip tracks only the entry/import graph. Trend sparkline is historical current gzip ending with this PR measurement; lower is better.

pkg-pr-new · 2026-08-14T13:05:42Z

More templates

@tanstack/arktype-adapter

npm i https://pkg.pr.new/@tanstack/arktype-adapter@8068

@tanstack/eslint-plugin-router

npm i https://pkg.pr.new/@tanstack/eslint-plugin-router@8068

@tanstack/eslint-plugin-start

npm i https://pkg.pr.new/@tanstack/eslint-plugin-start@8068

@tanstack/history

npm i https://pkg.pr.new/@tanstack/history@8068

@tanstack/nitro-v2-vite-plugin

npm i https://pkg.pr.new/@tanstack/nitro-v2-vite-plugin@8068

@tanstack/react-router

npm i https://pkg.pr.new/@tanstack/react-router@8068

@tanstack/react-router-devtools

npm i https://pkg.pr.new/@tanstack/react-router-devtools@8068

@tanstack/react-router-ssr-query

npm i https://pkg.pr.new/@tanstack/react-router-ssr-query@8068

@tanstack/react-start

npm i https://pkg.pr.new/@tanstack/react-start@8068

@tanstack/react-start-client

npm i https://pkg.pr.new/@tanstack/react-start-client@8068

@tanstack/react-start-rsc

npm i https://pkg.pr.new/@tanstack/react-start-rsc@8068

@tanstack/react-start-server

npm i https://pkg.pr.new/@tanstack/react-start-server@8068

@tanstack/router-cli

npm i https://pkg.pr.new/@tanstack/router-cli@8068

@tanstack/router-core

npm i https://pkg.pr.new/@tanstack/router-core@8068

@tanstack/router-devtools

npm i https://pkg.pr.new/@tanstack/router-devtools@8068

@tanstack/router-devtools-core

npm i https://pkg.pr.new/@tanstack/router-devtools-core@8068

@tanstack/router-generator

npm i https://pkg.pr.new/@tanstack/router-generator@8068

@tanstack/router-plugin

npm i https://pkg.pr.new/@tanstack/router-plugin@8068

@tanstack/router-ssr-query-core

npm i https://pkg.pr.new/@tanstack/router-ssr-query-core@8068

@tanstack/router-utils

npm i https://pkg.pr.new/@tanstack/router-utils@8068

@tanstack/router-vite-plugin

npm i https://pkg.pr.new/@tanstack/router-vite-plugin@8068

@tanstack/solid-router

npm i https://pkg.pr.new/@tanstack/solid-router@8068

@tanstack/solid-router-devtools

npm i https://pkg.pr.new/@tanstack/solid-router-devtools@8068

@tanstack/solid-router-ssr-query

npm i https://pkg.pr.new/@tanstack/solid-router-ssr-query@8068

@tanstack/solid-start

npm i https://pkg.pr.new/@tanstack/solid-start@8068

@tanstack/solid-start-client

npm i https://pkg.pr.new/@tanstack/solid-start-client@8068

@tanstack/solid-start-server

npm i https://pkg.pr.new/@tanstack/solid-start-server@8068

@tanstack/start-client-core

npm i https://pkg.pr.new/@tanstack/start-client-core@8068

@tanstack/start-fn-stubs

npm i https://pkg.pr.new/@tanstack/start-fn-stubs@8068

@tanstack/start-plugin-core

npm i https://pkg.pr.new/@tanstack/start-plugin-core@8068

@tanstack/start-server-core

npm i https://pkg.pr.new/@tanstack/start-server-core@8068

@tanstack/start-static-server-functions

npm i https://pkg.pr.new/@tanstack/start-static-server-functions@8068

@tanstack/start-storage-context

npm i https://pkg.pr.new/@tanstack/start-storage-context@8068

@tanstack/valibot-adapter

npm i https://pkg.pr.new/@tanstack/valibot-adapter@8068

@tanstack/virtual-file-routes

npm i https://pkg.pr.new/@tanstack/virtual-file-routes@8068

@tanstack/vue-router

npm i https://pkg.pr.new/@tanstack/vue-router@8068

@tanstack/vue-router-devtools

npm i https://pkg.pr.new/@tanstack/vue-router-devtools@8068

@tanstack/vue-router-ssr-query

npm i https://pkg.pr.new/@tanstack/vue-router-ssr-query@8068

@tanstack/vue-start

npm i https://pkg.pr.new/@tanstack/vue-start@8068

@tanstack/vue-start-client

npm i https://pkg.pr.new/@tanstack/vue-start-client@8068

@tanstack/vue-start-server

npm i https://pkg.pr.new/@tanstack/vue-start-server@8068

@tanstack/zod-adapter

npm i https://pkg.pr.new/@tanstack/zod-adapter@8068

commit: fb35c8e

codspeed-hq · 2026-08-14T13:17:56Z

Merging this PR will degrade performance by 12.56%

⚠️

Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.
Open the report in CodSpeed to investigate

⚡ 7 improved benchmarks
❌ 10 (👁 10) regressed benchmarks
✅ 163 untouched benchmarks

Performance Changes

	Mode	Benchmark	`BASE`	`HEAD`	Efficiency
⚡	Memory	`mem server error-paths not-found (vue)`	2,190.4 KB	485.6 KB	×4.5
⚡	Simulation	`client-mount loop (react)`	129.2 ms	119.3 ms	+8.27%
⚡	Memory	`mem server server-fn-churn (react)`	395.7 KB	376.3 KB	+5.16%
⚡	Simulation	`client-search-params navigation loop (react)`	177 ms	169.6 ms	+4.36%
⚡	Memory	`mem client navigation-churn (vue)`	1.7 MB	1.6 MB	+4.33%
⚡	Simulation	`ssr control-flow route headers (react)`	308.5 ms	299.2 ms	+3.12%
👁	Memory	`mem server error-paths redirect (vue)`	419.3 KB	473.7 KB	-11.48%
👁	Memory	`mem server peak-large-page (vue)`	1,010.6 KB	1,097.6 KB	-7.93%
👁	Memory	`mem server server-fn-churn (vue)`	325.3 KB	4,856.3 KB	-93.3%
👁	Memory	`mem server error-paths unmatched (react)`	415.8 KB	777.8 KB	-46.54%
👁	Memory	`mem server error-paths not-found (solid)`	584.7 KB	567.4 KB	+3.05%
👁	Memory	`mem server error-paths redirect (solid)`	370.1 KB	392.8 KB	-5.78%
👁	Simulation	`client-side navigation loop (react)`	126.8 ms	142.9 ms	-11.26%
👁	Simulation	`client-async-pipeline navigation loop (react)`	100.1 ms	107.3 ms	-6.67%
👁	Simulation	`client-links navigation loop (react)`	295.6 ms	308 ms	-4.01%
👁	Memory	`mem client unique-location-churn (vue)`	487.9 KB	530.2 KB	-7.97%
👁	Memory	`mem client navigation-churn (solid)`	677 KB	793.3 KB	-14.66%

Tip

Curious why this is faster? Comment @codspeedbot explain why this is faster on this PR, or directly use the CodSpeed MCP with your agent.

_{Comparing bundle-react-router-direct-export-class-catchboundary-component (fb35c8e) with main (bdaf73a)}

…hboundary-component

bundle(react-router): direct export of CatchBoundary class component,…
92b5e04
… remove function wrapper

github-actionsBot added the package: react-router label Aug 14, 2026

Sheraff changed the title ~~bundle(react-router): direct export of CatchBoundary class component, remove function wrapper~~perf(react-router): direct export of CatchBoundary class component, remove function wrapperAug 14, 2026

Merge branch 'main' into bundle-react-router-direct-export-class-catc…
fb35c8e
…hboundary-component

Sheraff merged commit f75cada into mainAug 15, 2026
26 checks passed

Sheraff deleted the bundle-react-router-direct-export-class-catchboundary-component branch August 15, 2026 06:52

github-actionsBot mentioned this pull request Aug 15, 2026
ci: Version Packages #8079
Merged

This was referenced Aug 19, 2026
chore(deps): bump all-patch-updates dependencies brandhaug/b2b-saas-starter#70
Closed
chore(deps): bump all-patch-updates dependencies brandhaug/b2b-saas-starter#108
Merged

Navigation Menu

Uh oh!

Uh oh!

perf(react-router): direct export of CatchBoundary class component, remove function wrapper - #8068

perf(react-router): direct export of CatchBoundary class component, remove function wrapper#8068
Sheraff merged 2 commits into
mainfrom
bundle-react-router-direct-export-class-catchboundary-component

Sheraff commented Aug 14, 2026•
edited by coderabbitai Bot
Loading

Uh oh!

nx-cloudBot commented Aug 14, 2026•
edited
Loading

Uh oh!

github-actionsBot commented Aug 14, 2026•
edited
Loading

Uh oh!

coderabbitaiBot commented Aug 14, 2026•
edited
Loading

Walkthrough

Changes

Uh oh!

github-actionsBot commented Aug 14, 2026•
edited
Loading

Uh oh!

pkg-pr-newBot commented Aug 14, 2026•
edited
Loading

Uh oh!

codspeed-hqBot commented Aug 14, 2026•
edited
Loading

Uh oh!

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

1 participant

Uh oh!

Uh oh!

Conversation

Sheraff commented Aug 14, 2026• edited by coderabbitai BotLoading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Summary by CodeRabbit

Uh oh!

nx-cloudBot commented Aug 14, 2026• edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

github-actionsBot commented Aug 14, 2026• edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

🚀 Changeset Version Preview

🟩 Patch bumps

Uh oh!

coderabbitaiBot commented Aug 14, 2026• edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Walkthrough

Changes

Uh oh!

github-actionsBot commented Aug 14, 2026• edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Bundle Size Benchmarks

Uh oh!

pkg-pr-newBot commented Aug 14, 2026• edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

codspeed-hqBot commented Aug 14, 2026• edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Merging this PR will degrade performance by 12.56%

Performance Changes

Uh oh!

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

1 participant

Sheraff commented Aug 14, 2026•
edited by coderabbitai Bot
Loading

nx-cloudBot commented Aug 14, 2026•
edited
Loading

github-actionsBot commented Aug 14, 2026•
edited
Loading

coderabbitaiBot commented Aug 14, 2026•
edited
Loading

github-actionsBot commented Aug 14, 2026•
edited
Loading

pkg-pr-newBot commented Aug 14, 2026•
edited
Loading

codspeed-hqBot commented Aug 14, 2026•
edited
Loading