Upgrade React from `46103596-20260305` to `5e9eedb5-20260312` by nextjs-bot · Pull Request #91272 · vercel/next.js

nextjs-bot · 2026-03-12T18:31:53Z

diff facebook/react@46103596...5e9eedb5

React upstream changes

[Flight] Clear chunk reason after successful module initialization facebook/react#36024
Enable Fragment Ref flags across builds facebook/react#36026
Bump undici from 6.21.2 to 6.23.0 in /compiler facebook/react#35512
Bump qs from 6.4.0 to 6.4.1 in /fixtures/packaging/webpack-alias/dev facebook/react#35505
Bump qs from 6.4.0 to 6.4.1 in /fixtures/packaging/webpack/prod facebook/react#35432
Bump jws from 3.2.2 to 3.2.3 facebook/react#35373
[DevTools] Ignore new production renderers if we already use "worse" versions of React on a page facebook/react#35994
[DevTools] Fix a crash when rendering a new class Component when simulating errored state facebook/react#35985

fixes #90954

nextjs-bot · 2026-03-12T18:54:54Z

Failing test suites

Commit: 0e19f81 | About building and testing Next.js

pnpm test-start-turbo test/production/deterministic-build/deployment-id.test.ts (turbopack) (job)

deterministic build - changing deployment id > build output API - standard builder > should produce identical build outputs even when changing deployment id (DD)

Expand output

● deterministic build - changing deployment id › build output API - standard builder › should produce identical build outputs even when changing deployment id

thrown: "Exceeded timeout of 60000 ms for a test.
Add a timeout value to this test to increase the timeout, if this is a long-running test. See https://jestjs.io/docs/api#testname-fn-timeout."

  50 |       }
  51 |
> 52 |       const result = Reflect.apply(target, thisArg, args)
     |                              ^
  53 |       return typeof result === 'function' ? wrapJestTestFn(result) : result
  54 |     },
  55 |     get(target, prop, receiver) {

  at Object.apply (lib/e2e-utils/index.ts:52:30)
  at it (production/deterministic-build/deployment-id.test.ts:261:7)
      at Array.forEach (<anonymous>)
  at production/deterministic-build/deployment-id.test.ts:233:6
  at Object.<anonymous> (production/deterministic-build/deployment-id.test.ts:207:58)

nextjs-bot · 2026-03-12T18:55:52Z

Stats from current PR

✅ No significant changes detected

📊 All Metrics

📖 Metrics Glossary

Dev Server Metrics:

Listen = TCP port starts accepting connections
First Request = HTTP server returns successful response
Cold = Fresh build (no cache)
Warm = With cached build artifacts

Build Metrics:

Fresh = Clean build (no .next directory)
Cached = With existing .next directory

Change Thresholds:

Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
Size: Changes < 1KB AND < 1% are insignificant
All other changes are flagged to catch regressions

⚡ Dev Server

Metric	Canary	PR	Change	Trend
Cold (Listen)	456ms	456ms	✓	▁█▁▁▁
Cold (Ready in log)	445ms	449ms	✓	▂▇▁▁▁
Cold (First Request)	910ms	913ms	✓	▃▇▃▂▃
Warm (Listen)	456ms	455ms	✓	▁█▁▁▁
Warm (Ready in log)	446ms	443ms	✓	▁▇▁▁▁
Warm (First Request)	355ms	353ms	✓	▁▇▂▁▁

📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric	Canary	PR	Change	Trend
Cold (Listen)	456ms	455ms	✓	▁▁▁▁▁
Cold (Ready in log)	438ms	439ms	✓	▁▆█▆▆
Cold (First Request)	1.951s	1.962s	✓	▁▃▇▄▃
Warm (Listen)	456ms	456ms	✓	▁▁█▁▁
Warm (Ready in log)	437ms	438ms	✓	▁▆█▆▆
Warm (First Request)	1.950s	1.968s	✓	▁▃▅▃▃

⚡ Production Builds

Metric	Canary	PR	Change	Trend
Fresh Build	4.286s	4.293s	✓	▁▇▁▂▁
Cached Build	4.296s	4.248s	✓	▁▆▁▂▁

📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric	Canary	PR	Change	Trend
Fresh Build	14.272s	14.286s	✓	▁▂▅▁▁
Cached Build	14.384s	14.402s	✓	▁▂▅▁▁
node_modules Size	481 MB	481 MB	✓	█████

📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **408 kB** → **408 kB** ⚠️ +67 B

80 files with content-based hashes (individual files not comparable between builds)

Server

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	771 B	764 B	✓
Total	771 B	764 B	✅ -7 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	450 B	450 B	✓
Total	450 B	450 B	✓

📦 Webpack

Client

Main Bundles

	Canary	PR	Change
5528-HASH.js gzip	5.54 kB	N/A	-
6280-HASH.js gzip	59.6 kB	N/A	-
6335.HASH.js gzip	169 B	N/A	-
912-HASH.js gzip	4.59 kB	N/A	-
e8aec2e4-HASH.js gzip	62.6 kB	N/A	-
framework-HASH.js gzip	59.7 kB	59.7 kB	✓
main-app-HASH.js gzip	256 B	255 B	✓
main-HASH.js gzip	39.2 kB	39.2 kB	✓
webpack-HASH.js gzip	1.68 kB	1.68 kB	✓
262-HASH.js gzip	N/A	4.59 kB	-
2889.HASH.js gzip	N/A	169 B	-
5602-HASH.js gzip	N/A	5.55 kB	-
6948ada0-HASH.js gzip	N/A	62.7 kB	-
9544-HASH.js gzip	N/A	60.4 kB	-
Total	233 kB	234 kB	⚠️ +823 B

Polyfills

	Canary	PR	Change
polyfills-HASH.js gzip	39.4 kB	39.4 kB	✓
Total	39.4 kB	39.4 kB	✓

Pages

	Canary	PR	Change
_app-HASH.js gzip	194 B	194 B	✓
_error-HASH.js gzip	183 B	180 B	🟢 3 B (-2%)
css-HASH.js gzip	331 B	330 B	✓
dynamic-HASH.js gzip	1.81 kB	1.81 kB	✓
edge-ssr-HASH.js gzip	256 B	256 B	✓
head-HASH.js gzip	351 B	352 B	✓
hooks-HASH.js gzip	384 B	383 B	✓
image-HASH.js gzip	580 B	581 B	✓
index-HASH.js gzip	260 B	260 B	✓
link-HASH.js gzip	2.51 kB	2.51 kB	✓
routerDirect..HASH.js gzip	320 B	319 B	✓
script-HASH.js gzip	386 B	386 B	✓
withRouter-HASH.js gzip	315 B	315 B	✓
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
Total	7.98 kB	7.98 kB	✅ -1 B

Server

Edge SSR

	Canary	PR	Change
edge-ssr.js gzip	125 kB	125 kB	✓
page.js gzip	266 kB	266 kB	✓
Total	391 kB	391 kB	⚠️ +239 B

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	617 B	615 B	✓
middleware-r..fest.js gzip	156 B	155 B	✓
middleware.js gzip	43.6 kB	43.9 kB	✓
edge-runtime..pack.js gzip	842 B	842 B	✓
Total	45.2 kB	45.5 kB	⚠️ +298 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	715 B	718 B	✓
Total	715 B	718 B	⚠️ +3 B

Build Cache

	Canary	PR	Change
0.pack gzip	4.2 MB	4.19 MB	🟢 5.67 kB (0%)
index.pack gzip	108 kB	107 kB	✓
index.pack.old gzip	108 kB	107 kB	✓
Total	4.41 MB	4.4 MB	✅ -6.59 kB

🔄 Shared (bundler-independent)

Runtimes

	Canary	PR	Change
app-page-exp...dev.js gzip	331 kB	331 kB	✓
app-page-exp..prod.js gzip	179 kB	179 kB	✓
app-page-tur...dev.js gzip	331 kB	331 kB	✓
app-page-tur..prod.js gzip	179 kB	179 kB	✓
app-page-tur...dev.js gzip	327 kB	327 kB	✓
app-page-tur..prod.js gzip	177 kB	177 kB	✓
app-page.run...dev.js gzip	328 kB	328 kB	✓
app-page.run..prod.js gzip	177 kB	177 kB	✓
app-route-ex...dev.js gzip	75.9 kB	75.9 kB	✓
app-route-ex..prod.js gzip	51.6 kB	51.6 kB	✓
app-route-tu...dev.js gzip	75.9 kB	75.9 kB	✓
app-route-tu..prod.js gzip	51.6 kB	51.6 kB	✓
app-route-tu...dev.js gzip	75.5 kB	75.5 kB	✓
app-route-tu..prod.js gzip	51.4 kB	51.4 kB	✓
app-route.ru...dev.js gzip	75.5 kB	75.5 kB	✓
app-route.ru..prod.js gzip	51.4 kB	51.4 kB	✓
dist_client_...dev.js gzip	324 B	324 B	✓
dist_client_...dev.js gzip	326 B	326 B	✓
dist_client_...dev.js gzip	318 B	318 B	✓
dist_client_...dev.js gzip	317 B	317 B	✓
pages-api-tu...dev.js gzip	43.3 kB	43.3 kB	✓
pages-api-tu..prod.js gzip	32.9 kB	32.9 kB	✓
pages-api.ru...dev.js gzip	43.2 kB	43.2 kB	✓
pages-api.ru..prod.js gzip	32.9 kB	32.9 kB	✓
pages-turbo....dev.js gzip	52.6 kB	52.6 kB	✓
pages-turbo...prod.js gzip	38.5 kB	38.5 kB	✓
pages.runtim...dev.js gzip	52.6 kB	52.6 kB	✓
pages.runtim..prod.js gzip	38.5 kB	38.5 kB	✓
server.runti..prod.js gzip	62.4 kB	62.4 kB	✓
Total	2.94 MB	2.94 MB	⚠️ +7 B

📝 Changed Files (9 files)

Files with changes:

app-page-exp..ntime.dev.js
app-page-exp..time.prod.js
app-page-tur..ntime.dev.js
app-page-tur..time.prod.js
app-page-tur..ntime.dev.js
app-page-tur..time.prod.js
app-page.runtime.dev.js
app-page.runtime.prod.js
server.runtime.prod.js

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app-page-exp..ntime.dev.js

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app-page-exp..time.prod.js

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app-page-tur..ntime.dev.js

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app-page-tur..time.prod.js

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app-page-tur..ntime.dev.js

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app-page-tur..time.prod.js

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app-page.runtime.dev.js

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app-page.runtime.prod.js

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server.runtime.prod.js

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📎 Tarball URL

https://vercel-packages.vercel.app/next/commits/ca344b721ff8e00c44ddb2748f53853088dcc256/next

nextjs-bot added 6 commits March 12, 2026 18:30

Update react@experimental

dc0576d

Update react

8bd3e8d

Updated peer dependency references in apps

8fd9fb4

Updated peer dependency references in libraries

6ff6fb4

Update lockfile

d0a3a7e

ncc-compiled

0e19f81

nextjs-bot assigned eps1lon Mar 12, 2026

nextjs-bot requested a review from eps1lon March 12, 2026 18:31

nextjs-bot added type: react-sync CI approved Approve running CI for fork type: next labels Mar 12, 2026

eps1lon enabled auto-merge (squash) March 12, 2026 18:35

eps1lon approved these changes Mar 12, 2026

View reviewed changes

eps1lon merged commit bd04a07 into canary Mar 12, 2026
284 of 287 checks passed

eps1lon deleted the update/react/19.3.0-canary-5e9eedb5-20260312 branch March 12, 2026 19:27

ijjk pushed a commit that referenced this pull request Mar 13, 2026

Upgrade React from 46103596-20260305 to 5e9eedb5-20260312 (#91272)

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Upgrade React from `46103596-20260305` to `5e9eedb5-20260312`#91272

Upgrade React from `46103596-20260305` to `5e9eedb5-20260312`#91272
eps1lon merged 6 commits intocanaryfrom
update/react/19.3.0-canary-5e9eedb5-20260312

nextjs-bot commented Mar 12, 2026 •

edited by unstubbable

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nextjs-bot commented Mar 12, 2026

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Failing test suites

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nextjs-bot commented Mar 12, 2026

Stats from current PR

✅ No significant changes detected

⚡ Dev Server

📦 Dev Server (Webpack)

⚡ Production Builds

📦 Production Builds (Webpack)

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🔄 Shared (bundler-independent)

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nextjs-bot commented Mar 12, 2026 •

edited by unstubbable

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