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Upgrade React from 10680271-20260126 to 230772f9-20260128#89250

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eps1lon merged 6 commits intocanaryfrom
update/react/19.3.0-canary-230772f9-20260128
Jan 29, 2026
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Upgrade React from 10680271-20260126 to 230772f9-20260128#89250
eps1lon merged 6 commits intocanaryfrom
update/react/19.3.0-canary-230772f9-20260128

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@nextjs-bot nextjs-bot requested a review from eps1lon January 29, 2026 16:30
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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) 458ms 458ms ✓ █▇▇█▁
Cold (First Request) 858ms 851ms ✓ █▇▆█▁
Warm (Listen) 456ms 456ms ✓ ▁▁▁▁▁
Warm (Ready in log) 457ms 459ms ✓ ▂▁▁▁▃
Warm (First Request) 371ms 372ms ✓ ▆▁▁▆▇
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 456ms 455ms ✓ ▁█▁▁▁
Cold (Ready in log) 437ms 436ms ✓ ▁█▁▂▁
Cold (First Request) 1.842s 1.857s ✓ ▁█▁▂▁
Warm (Listen) 455ms 456ms ✓ ▁█▁▁▁
Warm (Ready in log) 436ms 436ms ✓ ▁█▁▁▁
Warm (First Request) 1.850s 1.863s ✓ ▁█▁▁▁

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 4.196s 4.132s ✓ ▁▁▁▁▄
Cached Build 4.180s 4.167s ✓ ▁▁▁▁▅
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 13.661s 13.750s ✓ ▁▁▁▅▁
Cached Build 13.755s 13.779s ✓ ▁█▁▁▁
node_modules Size 462 MB 462 MB ✓ █████
📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **432 kB** → **432 kB** ⚠️ +123 B

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

Server

Middleware
Canary PR Change
middleware-b..fest.js gzip 760 B 766 B ✓
Total 760 B 766 B ⚠️ +6 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 451 B 449 B ✓
Total 451 B 449 B ✅ -2 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 254 B ✓
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 62.5 kB -
9544-HASH.js gzip N/A 53.2 kB -
Total 226 kB 226 kB ⚠️ +596 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 616 B 614 B ✓
middleware-r..fest.js gzip 156 B 155 B ✓
middleware.js gzip 33.1 kB 33.2 kB ✓
edge-runtime..pack.js gzip 842 B 842 B ✓
Total 34.7 kB 34.8 kB ⚠️ +77 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 🔴 +7.9 kB (+0%)
index.pack gzip 101 kB 101 kB ✓
index.pack.old gzip 101 kB 100 kB 🟢 1.17 kB (-1%)
Total 3.92 MB 3.93 MB ⚠️ +6.83 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 ⚠️ +52 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
View diffs
app-page-exp..ntime.dev.js 
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app-page-tur..ntime.dev.js 
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app-page-tur..ntime.dev.js 
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app-page.runtime.dev.js 
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server.runtime.prod.js

Diff too large to display

@eps1lon eps1lon mentioned this pull request Jan 29, 2026
Closed
@eps1lon eps1lon enabled auto-merge (squash) January 29, 2026 16:59
@eps1lon eps1lon merged commit 54ac195 into canary Jan 29, 2026
289 of 291 checks passed
@eps1lon eps1lon deleted the update/react/19.3.0-canary-230772f9-20260128 branch January 29, 2026 17:14
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