Upgrade React from `10680271-20260126` to `87ae75b3-20260128` #89179

nextjs-bot · 2026-01-28T16:25:01Z

diff facebook/react@10680271...87ae75b3

React upstream changes

nextjs-bot · 2026-01-28T16:43:20Z

Failing test suites

Commit: 1c06d93 | About building and testing Next.js

pnpm test-dev test/development/app-dir/browser-log-forwarding/fixtures/verbose-level/verbose-level.test.ts (job)

browser-log-forwarding verbose level > should forward all logs to terminal (DD)

Expand output

● browser-log-forwarding verbose level › should forward all logs to terminal

expect(received).toMatchInlineSnapshot(snapshot)

Snapshot name: `browser-log-forwarding verbose level should forward all logs to terminal 1`

- Snapshot  - 1
+ Received  + 0

  [browser] browser log: this is a log message (app/page.tsx:7:13)
  [browser] browser info: this is an info message (app/page.tsx:8:13)
  [browser] browser warn: this is a warning message (app/page.tsx:9:13)
  [browser] browser error: this is an error message 
- [browser] browser debug: this is a debug message (app/page.tsx:11:13)

  36 |       .join('\n')
  37 |
> 38 |     expect(browserLogs).toMatchInlineSnapshot(`
     |                         ^
  39 |      "[browser] browser log: this is a log message (app/page.tsx:7:13)
  40 |      [browser] browser info: this is an info message (app/page.tsx:8:13)
  41 |      [browser] browser warn: this is a warning message (app/page.tsx:9:13)

  at Object.toMatchInlineSnapshot (development/app-dir/browser-log-forwarding/fixtures/verbose-level/verbose-level.test.ts:38:25)

pnpm test-start-turbo test/e2e/app-dir/app-client-cache/client-cache.parallel-routes.test.ts (turbopack) (job)

app dir client cache with parallel routes > prefetch={true} > should re-use the cache for the full page, only for 5 mins (DD)

Expand output

● app dir client cache with parallel routes › prefetch={true} › should re-use the cache for the full page, only for 5 mins

thrown: "Exceeded timeout of 120000 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."

  54 |     })
  55 |
> 56 |     it('should re-use the cache for the full page, only for 5 mins', async () => {
     |     ^
  57 |       let page: PlaywrightPage
  58 |       const browser = await next.browser('/', {
  59 |         async beforePageLoad(p) {

  at it (e2e/app-dir/app-client-cache/client-cache.parallel-routes.test.ts:56:5)
  at describe (e2e/app-dir/app-client-cache/client-cache.parallel-routes.test.ts:30:3)
  at Object.describe (e2e/app-dir/app-client-cache/client-cache.parallel-routes.test.ts:7:1)

pnpm test-start test/e2e/app-dir/segment-cache/prefetch-runtime/prefetch-runtime.test.ts (job)

runtime prefetching > in a page > can completely prefetch a page that uses cookies and no uncached IO (DD)

Expand output

● runtime prefetching › in a page › can completely prefetch a page that uses cookies and no uncached IO

apiRequestContext.fetch: read ECONNRESET
Call log:
  - → GET http://localhost:40675/in-page/cookies-only?_rsc=xlawk
  -   user-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/130.0.6723.31 Safari/537.36
  -   accept: */*
  -   accept-encoding: gzip,deflate,br
  -   cookie: testCookie=initialValue
  -   next-test-fetch-priority: low
  -   referer: http://localhost:40675/
  -   next-router-prefetch: 1
  -   next-router-segment-prefetch: /!KGRlZmF1bHQp/in-page
  -   next-url: /
  -   rsc: 1
  -   sec-ch-ua: "Chromium";v="130", "HeadlessChrome";v="130", "Not?A_Brand";v="99"
  -   sec-ch-ua-mobile: ?0
  -   sec-ch-ua-platform: "Linux"

  225 |             // server; we pass the request to the server the immediately.
  226 |             result: (async () => {
> 227 |               const originalResponse = await page.request.fetch(request, {
      |                                                           ^
  228 |                 maxRedirects: 0,
  229 |               })
  230 |

  at fetch (lib/router-act.ts:227:59)
  at lib/router-act.ts:245:13
  at routeHandler (lib/router-act.ts:257:7)

● runtime prefetching › in a page › can completely prefetch a page that uses cookies and no uncached IO

apiRequestContext.fetch: read ECONNRESET
Call log:
  - → GET http://localhost:40675/in-page/cookies-only?_rsc=xlawk
  -   user-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/130.0.6723.31 Safari/537.36
  -   accept: */*
  -   accept-encoding: gzip,deflate,br
  -   cookie: testCookie=initialValue
  -   next-test-fetch-priority: low
  -   referer: http://localhost:40675/
  -   next-router-prefetch: 1
  -   next-router-segment-prefetch: /!KGRlZmF1bHQp/in-page
  -   next-url: /
  -   rsc: 1
  -   sec-ch-ua: "Chromium";v="130", "HeadlessChrome";v="130", "Not?A_Brand";v="99"
  -   sec-ch-ua-mobile: ?0
  -   sec-ch-ua-platform: "Linux"

  225 |             // server; we pass the request to the server the immediately.
  226 |             result: (async () => {
> 227 |               const originalResponse = await page.request.fetch(request, {
      |                                                           ^
  228 |                 maxRedirects: 0,
  229 |               })
  230 |

  at fetch (lib/router-act.ts:227:59)
  at lib/router-act.ts:245:13
  at routeHandler (lib/router-act.ts:257:7)

pnpm test packages/next/src/server/app-render/action-handler.test.ts (job)

Expand output

● Test suite failed to run

Jest encountered an unexpected token

Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax.

Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration.

By default "node_modules" folder is ignored by transformers.

Here's what you can do:
 • If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/ecmascript-modules for how to enable it.
 • If you are trying to use TypeScript, see https://jestjs.io/docs/getting-started#using-typescript
 • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
 • If you need a custom transformation specify a "transform" option in your config.
 • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.

You'll find more details and examples of these config options in the docs:
https://jestjs.io/docs/configuration
For information about custom transformations, see:
https://jestjs.io/docs/code-transformation

Details:

C:\actions-runner\_work\next.js\next.js\packages\next\src\server\app-render\action-handler.ts:1
({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,jest){import { RSC_HEADER, RSC_CONTENT_TYPE_HEADER, NEXT_ROUTER_STATE_TREE_HEADER, ACTION_HEADER, NEXT_ACTION_NOT_FOUND_HEADER, NEXT_ROUTER_PREFETCH_HEADER, NEXT_ROUTER_SEGMENT_PREFETCH_HEADER, NEXT_URL, NEXT_ACTION_REVALIDATED_HEADER } from '../../client/components/app-router-headers';
                                                                                  ^^^^^^

SyntaxError: Cannot use import statement outside a module

  3 | describe('parseHostHeader', () => {
  4 |   it('should return correct host', () => {
> 5 |     expect(parseHostHeader({})).toBe(undefined)
    |                        ^
  6 |
  7 |     expect(
  8 |       parseHostHeader({

  at Runtime.createScriptFromCode (../node_modules/.pnpm/jest-runtime@29.7.0/node_modules/jest-runtime/build/index.js:1505:14)
  at Object.<anonymous> (../packages/next/src/server/app-render/action-handler.test.ts:5:24)

nextjs-bot · 2026-01-28T16:55:13Z

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)	455ms	455ms	✓	▁▁▁█▁
Cold (Ready in log)	439ms	440ms	✓	▇▇▄▆▂
Cold (First Request)	1.152s	1.201s	✓	██▇▄▂
Warm (Listen)	457ms	457ms	✓	▁▁▁█▁
Warm (Ready in log)	443ms	444ms	✓	▁▂▁█▃
Warm (First Request)	342ms	340ms	✓	██▇▅▄

📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric	Canary	PR	Change	Trend
Cold (Listen)	456ms	455ms	✓	▁▁▁█▁
Cold (Ready in log)	437ms	437ms	✓	▃▁▃█▃
Cold (First Request)	1.820s	1.825s	✓	▂▁▂█▂
Warm (Listen)	456ms	456ms	✓	▁▁▁█▁
Warm (Ready in log)	438ms	437ms	✓	▃▁▃█▃
Warm (First Request)	1.846s	1.851s	✓	▂▁▂█▂

⚡ Production Builds

Metric	Canary	PR	Change	Trend
Fresh Build	4.373s	4.304s	✓	▁▁▁█▆
Cached Build	4.314s	4.256s	✓	▁▁▁█▆

📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric	Canary	PR	Change	Trend
Fresh Build	13.976s	13.904s	✓	▁▁▁█▁
Cached Build	14.105s	14.017s	✓	▁▁▂█▁
node_modules Size	462 MB	462 MB	✓	█████

📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **432 kB** → **432 kB** ✅ -19 B

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

Server

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	770 B	762 B	🟢 8 B (-1%)
Total	770 B	762 B	✅ -8 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	451 B	450 B	✓
Total	451 B	450 B	✅ -1 B

📦 Webpack

Client

Main Bundles

	Canary	PR	Change
5528-HASH.js gzip	5.47 kB	N/A	-
6280-HASH.js gzip	52.7 kB	N/A	-
6335.HASH.js gzip	169 B	N/A	-
912-HASH.js gzip	4.53 kB	N/A	-
e8aec2e4-HASH.js gzip	62.3 kB	N/A	-
framework-HASH.js gzip	59.7 kB	59.7 kB	✓
main-app-HASH.js gzip	256 B	253 B	🟢 3 B (-1%)
main-HASH.js gzip	39 kB	39 kB	✓
webpack-HASH.js gzip	1.68 kB	1.68 kB	✓
262-HASH.js gzip	N/A	4.52 kB	-
2889.HASH.js gzip	N/A	169 B	-
5602-HASH.js gzip	N/A	5.48 kB	-
6948ada0-HASH.js gzip	N/A	62.3 kB	-
9544-HASH.js gzip	N/A	53.2 kB	-
Total	226 kB	226 kB	⚠️ +478 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	2.49 kB	2.49 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	7.97 kB	7.97 kB	✅ -1 B

Server

Edge SSR

	Canary	PR	Change
edge-ssr.js gzip	126 kB	126 kB	✓
page.js gzip	246 kB	247 kB	✓
Total	373 kB	373 kB	⚠️ +247 B

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	614 B	613 B	✓
middleware-r..fest.js gzip	156 B	155 B	✓
middleware.js gzip	33.1 kB	33 kB	✓
edge-runtime..pack.js gzip	842 B	842 B	✓
Total	34.7 kB	34.6 kB	✅ -128 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	732 B	736 B	✓
Total	732 B	736 B	⚠️ +4 B

Build Cache

	Canary	PR	Change
0.pack gzip	3.72 MB	3.72 MB	🔴 +4.66 kB (+0%)
index.pack gzip	100 kB	101 kB	🔴 +1.15 kB (+1%)
index.pack.old gzip	101 kB	102 kB	✓
Total	3.92 MB	3.93 MB	⚠️ +6.72 kB

🔄 Shared (bundler-independent)

Runtimes

	Canary	PR	Change
app-page-exp...dev.js gzip	308 kB	308 kB	✓
app-page-exp..prod.js gzip	164 kB	164 kB	✓
app-page-tur...dev.js gzip	308 kB	308 kB	✓
app-page-tur..prod.js gzip	164 kB	164 kB	✓
app-page-tur...dev.js gzip	305 kB	305 kB	✓
app-page-tur..prod.js gzip	162 kB	162 kB	✓
app-page.run...dev.js gzip	305 kB	305 kB	✓
app-page.run..prod.js gzip	162 kB	162 kB	✓
app-route-ex...dev.js gzip	70.2 kB	70.2 kB	✓
app-route-ex..prod.js gzip	48.8 kB	48.8 kB	✓
app-route-tu...dev.js gzip	70.2 kB	70.2 kB	✓
app-route-tu..prod.js gzip	48.8 kB	48.8 kB	✓
app-route-tu...dev.js gzip	69.8 kB	69.8 kB	✓
app-route-tu..prod.js gzip	48.6 kB	48.6 kB	✓
app-route.ru...dev.js gzip	69.8 kB	69.8 kB	✓
app-route.ru..prod.js gzip	48.6 kB	48.6 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	43.1 kB	43.1 kB	✓
pages-api-tu..prod.js gzip	32.8 kB	32.8 kB	✓
pages-api.ru...dev.js gzip	43.1 kB	43.1 kB	✓
pages-api.ru..prod.js gzip	32.8 kB	32.8 kB	✓
pages-turbo....dev.js gzip	52.4 kB	52.4 kB	✓
pages-turbo...prod.js gzip	39.3 kB	39.3 kB	✓
pages.runtim...dev.js gzip	52.3 kB	52.3 kB	✓
pages.runtim..prod.js gzip	39.3 kB	39.3 kB	✓
server.runti..prod.js gzip	62.5 kB	62.5 kB	✓
Total	2.75 MB	2.75 MB	⚠️ +30 B

📝 Changed Files (5 files)

Files with changes:

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

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nextjs-bot assigned eps1lon Jan 28, 2026

nextjs-bot requested a review from eps1lon January 28, 2026 16:25

nextjs-bot added type: react-sync CI approved Approve running CI for fork type: next labels Jan 28, 2026

nextjs-bot added 6 commits January 28, 2026 22:29

Update react@experimental

71d153f

Update react

1cdfeed

Updated peer dependency references in apps

23bd5d0

Updated peer dependency references in libraries

7abedf2

Update lockfile

6122058

ncc-compiled

1c06d93

eps1lon force-pushed the update/react/19.3.0-canary-87ae75b3-20260128 branch from 5b0a7b4 to 1c06d93 Compare January 28, 2026 21:30

eps1lon approved these changes Jan 28, 2026

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Upgrade React from `10680271-20260126` to `87ae75b3-20260128` #89179

Upgrade React from `10680271-20260126` to `87ae75b3-20260128` #89179

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Upgrade React from 10680271-20260126 to 87ae75b3-20260128 #89179

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Upgrade React from `10680271-20260126` to `87ae75b3-20260128` #89179

Upgrade React from `10680271-20260126` to `87ae75b3-20260128` #89179

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