Upgrade React from `5e9eedb5-20260312` to `c80a0750-20260312` by nextjs-bot · Pull Request #91324 · vercel/next.js

nextjs-bot · 2026-03-13T16:31:52Z

React upstream changes

nextjs-bot · 2026-03-13T16:40:14Z

Tests Passed

nextjs-bot · 2026-03-13T16:50:35Z

Stats from current PR

🔴 5 regressions

Metric	Canary	PR	Change	Trend
Webpack Build Time (cached)	17.783s	18.554s	🔴 +771ms (+4%)	▁▁▁▁▆
Webpack Cold (First Request)	2.395s	2.510s	🔴 +115ms (+5%)	▂▁▁▁▆
Webpack Warm (Listen)	559ms	712ms	🔴 +153ms (+27%)	▁▁▁▁▆
nextDevWarmR..ationWebpack	527ms	703ms	🔴 +176ms (+33%)	▂▃▁▃▇
Webpack Warm (First Request)	2.420s	4.279s	🔴 +1.859s (+77%)	▁▂▁▁▆

📊 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	456ms	✓	▆█▁▁▁
Cold (Ready in log)	439ms	439ms	✓	▆█▁▁▁
Cold (First Request)	1.120s	1.148s	✓	▆█▃▁▃
Warm (Listen)	457ms	457ms	✓	▆█▁▁▁
Warm (Ready in log)	443ms	443ms	✓	▆█▁▁▁
Warm (First Request)	348ms	344ms	✓	▆█▁▁▁

📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric	Canary	PR	Change	Trend
Cold (Listen)	558ms	559ms	✓	▁▁▁▁▆
Cold (Ready in log)	526ms	554ms	✓	▃▂▁▂▇
Cold (First Request)	2.395s	2.510s	🔴 +115ms (+5%)	▂▁▁▁▆
Warm (Listen)	559ms	712ms	🔴 +153ms (+27%)	▁▁▁▁▆
Warm (Ready in log)	527ms	703ms	🔴 +176ms (+33%)	▂▃▁▃▇
Warm (First Request)	2.420s	4.279s	🔴 +1.859s (+77%)	▁▂▁▁▆

⚡ Production Builds

Metric	Canary	PR	Change	Trend
Fresh Build	3.788s	3.815s	✓	▅█▁▁▁
Cached Build	3.813s	3.785s	✓	▆█▁▁▁

📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric	Canary	PR	Change	Trend
Fresh Build	17.693s	17.922s	✓	▁▁▁▁▆
Cached Build	17.783s	18.554s	🔴 +771ms (+4%)	▁▁▁▁▆
node_modules Size	483 MB	483 MB	✓	█████

📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles

	Canary	PR	Change
0_9s6iwj6k~rx.js gzip	164 B	N/A	-
0.aneqbzty2y~.js gzip	155 B	N/A	-
0~lwfcrlb4v_9.css gzip	115 B	115 B	✓
00h0nz7r436~l.js gzip	13.3 kB	N/A	-
019g6dx8~tg3j.js gzip	12.9 kB	N/A	-
02ku7edzc_wf7.js gzip	450 B	N/A	-
03~yq9q893hmn.js gzip	39.4 kB	39.4 kB	✓
08r-0b6qc7o_s.js gzip	163 B	N/A	-
092lcb3fqrrf9.js gzip	8.52 kB	N/A	-
09smvgt.j8lqk.js gzip	158 B	N/A	-
0aj~xs1l1g8tg.js gzip	8.53 kB	N/A	-
0al442x9i7k8y.js gzip	157 B	N/A	-
0c2g.labu7dli.js gzip	65.7 kB	N/A	-
0e9ag~d9m7paf.js gzip	48.5 kB	N/A	-
0eg78sqvyqa0_.js gzip	13.7 kB	N/A	-
0fn2sqti3knsv.js gzip	158 B	N/A	-
0g9v2.jawbmzg.js gzip	159 B	N/A	-
0h35gmp9u328z.js gzip	8.54 kB	N/A	-
0h6fkavebp.iz.js gzip	8.47 kB	N/A	-
0ino_yf1k3h6k.js gzip	10.4 kB	N/A	-
0j_v.bmk6mt~t.js gzip	169 B	N/A	-
0js9pqs~wxj61.js gzip	157 B	N/A	-
0lpm0ynr-5028.js gzip	7.61 kB	N/A	-
0moy~uao4dl.m.js gzip	9.19 kB	N/A	-
0q50rtpusjy90.js gzip	2.28 kB	N/A	-
0smgy2grrrlka.js gzip	8.58 kB	N/A	-
0t1dzhdfh0txh.js gzip	215 B	215 B	✓
0vadx5e5wcx6e.js gzip	160 B	N/A	-
0vt7pofxnk8in.js gzip	10.1 kB	N/A	-
0ya.4ltkyn.f6.js gzip	157 B	N/A	-
0zid7o0-vupvp.js gzip	225 B	N/A	-
0zmcxx2g36e31.js gzip	156 B	N/A	-
11yo3xfd6b147.js gzip	12.9 kB	N/A	-
12pz54pfp78.js gzip	70.8 kB	N/A	-
13.84hqxl_1p7.js gzip	9.76 kB	N/A	-
13c7ilxu5y4u7.js gzip	156 B	N/A	-
1554wr-t7p6z-.js gzip	8.55 kB	N/A	-
15tjst79~qy3_.js gzip	1.46 kB	N/A	-
15z_v00ne4ud0.js gzip	8.47 kB	N/A	-
17d_m3p4j9w6r.js gzip	5.62 kB	N/A	-
17yu~3yiu7d2m.js gzip	8.52 kB	N/A	-
turbopack-0_..c11g.js gzip	4.16 kB	N/A	-
turbopack-00..ag6r.js gzip	4.17 kB	N/A	-
turbopack-01..lvav.js gzip	4.16 kB	N/A	-
turbopack-06..i1bm.js gzip	4.16 kB	N/A	-
turbopack-07..rk7h.js gzip	4.16 kB	N/A	-
turbopack-09..fln6.js gzip	4.16 kB	N/A	-
turbopack-09..jsr..js gzip	4.16 kB	N/A	-
turbopack-0a..-0x1.js gzip	4.16 kB	N/A	-
turbopack-0b..pgqz.js gzip	4.16 kB	N/A	-
turbopack-0c..l8f-.js gzip	4.16 kB	N/A	-
turbopack-0g..o_r8.js gzip	4.16 kB	N/A	-
turbopack-0n..a~rr.js gzip	4.14 kB	N/A	-
turbopack-0t..hi_v.js gzip	4.16 kB	N/A	-
turbopack-17..hse~.js gzip	4.16 kB	N/A	-
0-1zv_npagc74.js gzip	N/A	155 B	-
022tz.thp2xh9.js gzip	N/A	159 B	-
03t__~.5lvgeu.js gzip	N/A	5.62 kB	-
04.6z6~bk0ba8.js gzip	N/A	7.6 kB	-
04bxr0_5bknd3.js gzip	N/A	169 B	-
04d6ll75jqx3r.js gzip	N/A	9.19 kB	-
0583exyh-yhc7.js gzip	N/A	9.76 kB	-
05mtz1zx7h6.2.js gzip	N/A	153 B	-
072lv63r8dcz~.js gzip	N/A	8.58 kB	-
07k6dcww5s4pu.js gzip	N/A	13.7 kB	-
0ar1~bwpezfgw.js gzip	N/A	13.3 kB	-
0ba6afob5o5i2.js gzip	N/A	157 B	-
0bbiz~3nzyuc_.js gzip	N/A	156 B	-
0bpt14u_xx9nq.js gzip	N/A	158 B	-
0c99mq1ez2bke.js gzip	N/A	450 B	-
0cq-cmde_ws6u.js gzip	N/A	8.47 kB	-
0fwf102w10o9~.js gzip	N/A	8.52 kB	-
0gtmn.q_j1v5r.js gzip	N/A	10.4 kB	-
0h5~v-tahitcf.js gzip	N/A	10.1 kB	-
0le9gtymglk8m.js gzip	N/A	65.7 kB	-
0nclq9z6yzzm5.js gzip	N/A	1.46 kB	-
0nzumcogektg7.js gzip	N/A	8.55 kB	-
0qzmotnmm-5gl.js gzip	N/A	156 B	-
0s.c-cn5eebrx.js gzip	N/A	8.47 kB	-
0tna7lg6q4zne.js gzip	N/A	12.9 kB	-
0ujw1xd4ww4ty.js gzip	N/A	156 B	-
0votdfxr5fb5u.js gzip	N/A	2.28 kB	-
0ykl9bs_qj.5..js gzip	N/A	8.52 kB	-
0zfen0tnxp4gh.js gzip	N/A	8.55 kB	-
0zjm8qnb56ozp.js gzip	N/A	48.4 kB	-
106nfjop2t.ze.js gzip	N/A	157 B	-
10ad2y_.gbnx1.js gzip	N/A	158 B	-
10wkq1h9jzkg..js gzip	N/A	225 B	-
13t.tli.rsary.js gzip	N/A	162 B	-
149ndfh8zfcaz.js gzip	N/A	8.53 kB	-
14azl~7hjbxh2.js gzip	N/A	70.8 kB	-
15gkb_10omqgr.js gzip	N/A	13 kB	-
18cocjao46v.j.js gzip	N/A	154 B	-
turbopack-0~..c-3p.js gzip	N/A	4.16 kB	-
turbopack-05..6kzx.js gzip	N/A	4.14 kB	-
turbopack-08..4mg..js gzip	N/A	4.16 kB	-
turbopack-08..6xuc.js gzip	N/A	4.16 kB	-
turbopack-0b..u1w2.js gzip	N/A	4.17 kB	-
turbopack-0e..~lew.js gzip	N/A	4.16 kB	-
turbopack-0j..55~9.js gzip	N/A	4.16 kB	-
turbopack-0s..vzka.js gzip	N/A	4.16 kB	-
turbopack-0x..h832.js gzip	N/A	4.16 kB	-
turbopack-0z..rrmw.js gzip	N/A	4.16 kB	-
turbopack-10..e9-d.js gzip	N/A	4.16 kB	-
turbopack-13..3gna.js gzip	N/A	4.16 kB	-
turbopack-13..yk9n.js gzip	N/A	4.16 kB	-
turbopack-13..cut-.js gzip	N/A	4.16 kB	-
Total	463 kB	463 kB	✅ -46 B

Server

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	711 B	713 B	✓
Total	711 B	713 B	⚠️ +2 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	426 B	431 B	🔴 +5 B (+1%)
Total	426 B	431 B	⚠️ +5 B

📦 Webpack

Client

Main Bundles

	Canary	PR	Change
5528-HASH.js gzip	5.54 kB	N/A	-
6280-HASH.js gzip	60.3 kB	N/A	-
6335.HASH.js gzip	169 B	N/A	-
912-HASH.js gzip	4.59 kB	N/A	-
e8aec2e4-HASH.js gzip	62.7 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	39.2 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	60.9 kB	-
Total	234 kB	235 kB	⚠️ +673 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	269 kB	268 kB	✓
Total	394 kB	393 kB	✅ -313 B

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	618 B	614 B	✓
middleware-r..fest.js gzip	156 B	155 B	✓
middleware.js gzip	43.9 kB	43.8 kB	✓
edge-runtime..pack.js gzip	842 B	842 B	✓
Total	45.5 kB	45.4 kB	✅ -160 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	4.26 MB	4.26 MB	✓
index.pack gzip	111 kB	110 kB	✓
index.pack.old gzip	109 kB	110 kB	✓
Total	4.48 MB	4.48 MB	✅ -546 B

🔄 Shared (bundler-independent)

Runtimes

	Canary	PR	Change
app-page-exp...dev.js gzip	333 kB	333 kB	✓
app-page-exp..prod.js gzip	181 kB	181 kB	✓
app-page-tur...dev.js gzip	333 kB	333 kB	✓
app-page-tur..prod.js gzip	181 kB	181 kB	✓
app-page-tur...dev.js gzip	329 kB	329 kB	✓
app-page-tur..prod.js gzip	179 kB	179 kB	✓
app-page.run...dev.js gzip	329 kB	329 kB	✓
app-page.run..prod.js gzip	179 kB	179 kB	✓
app-route-ex...dev.js gzip	76 kB	76 kB	✓
app-route-ex..prod.js gzip	51.7 kB	51.7 kB	✓
app-route-tu...dev.js gzip	76 kB	76 kB	✓
app-route-tu..prod.js gzip	51.7 kB	51.7 kB	✓
app-route-tu...dev.js gzip	75.6 kB	75.6 kB	✓
app-route-tu..prod.js gzip	51.5 kB	51.5 kB	✓
app-route.ru...dev.js gzip	75.6 kB	75.6 kB	✓
app-route.ru..prod.js gzip	51.5 kB	51.5 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	43.4 kB	43.4 kB	✓
pages-api-tu..prod.js gzip	33 kB	33 kB	✓
pages-api.ru...dev.js gzip	43.3 kB	43.3 kB	✓
pages-api.ru..prod.js gzip	33 kB	33 kB	✓
pages-turbo....dev.js gzip	52.7 kB	52.7 kB	✓
pages-turbo...prod.js gzip	38.6 kB	38.6 kB	✓
pages.runtim...dev.js gzip	52.7 kB	52.7 kB	✓
pages.runtim..prod.js gzip	38.6 kB	38.6 kB	✓
server.runti..prod.js gzip	62.4 kB	62.4 kB	✓
Total	2.95 MB	2.95 MB	⚠️ +19 B

📝 Changed Files (8 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
app-route-ex..time.prod.js
app-route-tu..time.prod.js
app-route-tu..time.prod.js
app-route.ru..time.prod.js

View diffs

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

failed to diff

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

failed to diff

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

failed to diff

app-page.runtime.dev.js

failed to diff

app-route-ex..time.prod.js

Diff too large to display

app-route-tu..time.prod.js

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app-route-tu..time.prod.js

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app-route.ru..time.prod.js

Diff too large to display

📎 Tarball URL

https://vercel-packages.vercel.app/next/commits/ae9bb2d80e3966d966045fc2bcc113dcb5987126/next

nextjs-bot assigned eps1lon Mar 13, 2026

nextjs-bot requested a review from eps1lon March 13, 2026 16:31

nextjs-bot added type: react-sync CI approved type: next labels Mar 13, 2026

eps1lon enabled auto-merge (squash) March 13, 2026 17:19

eps1lon force-pushed the update/react/19.3.0-canary-c80a0750-20260312 branch from 15c897a to 0500a71 Compare March 13, 2026 17:59

nextjs-bot added 6 commits March 17, 2026 14:47

Update react@experimental

2298790

Update react

53c5669

Updated peer dependency references in apps

62e3b6c

Updated peer dependency references in libraries

30d6559

Update lockfile

2e1a760

ncc-compiled

ae9bb2d

eps1lon force-pushed the update/react/19.3.0-canary-c80a0750-20260312 branch from 0500a71 to ae9bb2d Compare March 17, 2026 13:48

eps1lon approved these changes Mar 17, 2026

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eps1lon merged commit 41a2ff6 into canary Mar 17, 2026
280 of 283 checks passed

eps1lon deleted the update/react/19.3.0-canary-c80a0750-20260312 branch March 17, 2026 15:27

github-actions Bot added the locked label Apr 1, 2026

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Upgrade React from `5e9eedb5-20260312` to `c80a0750-20260312`#91324

Upgrade React from `5e9eedb5-20260312` to `c80a0750-20260312`#91324
eps1lon merged 6 commits intocanaryfrom
update/react/19.3.0-canary-c80a0750-20260312

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Stats from current PR

🔴 5 regressions

⚡ Dev Server

📦 Dev Server (Webpack)

⚡ Production Builds

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