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Upgrade React from 3bc2d414-20260304 to 46103596-20260305#90989

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eps1lon merged 6 commits intocanaryfrom
update/react/19.3.0-canary-46103596-20260305
Mar 6, 2026
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Upgrade React from 3bc2d414-20260304 to 46103596-20260305#90989
eps1lon merged 6 commits intocanaryfrom
update/react/19.3.0-canary-46103596-20260305

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@nextjs-bot nextjs-bot requested a review from eps1lon March 6, 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) 455ms 455ms ✓ ▁▁▁▁▅
Cold (Ready in log) 438ms 437ms ✓ ▁▁▁▁▄
Cold (First Request) 1.245s 1.288s ✓ ▂▂▂▁▃
Warm (Listen) 456ms 456ms ✓ ▂▁▁▁▅
Warm (Ready in log) 443ms 446ms ✓ ▁▁▁▁▃
Warm (First Request) 349ms 352ms ✓ ▁▁▁▁▃
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 507ms 506ms ✓ ▅▅▁▅▁
Cold (Ready in log) 481ms 480ms ✓ ▆▁▇▇█
Cold (First Request) 2.170s 2.155s ✓ ▃▁▄█▅
Warm (Listen) 508ms 507ms ✓ █████
Warm (Ready in log) 479ms 481ms ✓ █▂▇▇▇
Warm (First Request) 2.162s 2.173s ✓ ▆▂▅█▅

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 3.716s 3.759s ✓ ▂▁▁▁▄
Cached Build 3.841s 3.840s ✓ ▂▁▁▁▄
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 15.818s 15.791s ✓ ▂▁▂█▂
Cached Build 15.834s 15.839s ✓ ▂▁▂█▂
node_modules Size 477 MB 477 MB ✓ ▁▁▁▁▁
📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **402 kB** → **402 kB** ✅ -29 B

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

Server

Middleware
Canary PR Change
middleware-b..fest.js gzip 764 B 765 B ✓
Total 764 B 765 B ⚠️ +1 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 5.54 kB N/A -
6280-HASH.js gzip 59.5 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 254 B 254 B ✓
main-HASH.js gzip 39.1 kB 39.1 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 62.6 kB -
9544-HASH.js gzip N/A 60.3 kB -
Total 233 kB 234 kB ⚠️ +767 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 256 kB 257 kB ✓
Total 381 kB 382 kB ⚠️ +589 B
Middleware
Canary PR Change
middleware-b..fest.js gzip 617 B 616 B ✓
middleware-r..fest.js gzip 156 B 155 B ✓
middleware.js gzip 43.9 kB 43.9 kB ✓
edge-runtime..pack.js gzip 842 B 842 B ✓
Total 45.5 kB 45.5 kB ✅ -35 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 4.07 MB 4.08 MB 🔴 +9.72 kB (+0%)
index.pack gzip 103 kB 103 kB ✓
index.pack.old gzip 102 kB 103 kB 🔴 +1.7 kB (+2%)
Total 4.28 MB 4.29 MB ⚠️ +11.5 kB

🔄 Shared (bundler-independent)

Runtimes
Canary PR Change
app-page-exp...dev.js gzip 322 kB 322 kB ✓
app-page-exp..prod.js gzip 171 kB 171 kB ✓
app-page-tur...dev.js gzip 322 kB 322 kB ✓
app-page-tur..prod.js gzip 171 kB 171 kB ✓
app-page-tur...dev.js gzip 319 kB 319 kB ✓
app-page-tur..prod.js gzip 169 kB 169 kB ✓
app-page.run...dev.js gzip 319 kB 319 kB ✓
app-page.run..prod.js gzip 169 kB 169 kB ✓
app-route-ex...dev.js gzip 70.9 kB 70.9 kB ✓
app-route-ex..prod.js gzip 49.3 kB 49.3 kB ✓
app-route-tu...dev.js gzip 70.9 kB 70.9 kB ✓
app-route-tu..prod.js gzip 49.3 kB 49.3 kB ✓
app-route-tu...dev.js gzip 70.5 kB 70.5 kB ✓
app-route-tu..prod.js gzip 49.1 kB 49.1 kB ✓
app-route.ru...dev.js gzip 70.5 kB 70.5 kB ✓
app-route.ru..prod.js gzip 49 kB 49 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 kB 62 kB ✓
Total 2.84 MB 2.84 MB ⚠️ +29 B
📝 Changed Files (9 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
  • 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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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

Diff too large to display

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

Diff too large to display

server.runtime.prod.js

Diff too large to display

📎 Tarball URL 
https://vercel-packages.vercel.app/next/commits/0e2e49926b349f3dcc5b405ac7db20b8ac38e8f9/next

@eps1lon eps1lon force-pushed the update/react/19.3.0-canary-46103596-20260305 branch from 8b7028f to 9522cef Compare March 6, 2026 17:28
@eps1lon eps1lon force-pushed the update/react/19.3.0-canary-46103596-20260305 branch from 9522cef to 0e2e499 Compare March 6, 2026 20:11
@eps1lon eps1lon enabled auto-merge (squash) March 6, 2026 21:53
@eps1lon eps1lon merged commit d843c9f into canary Mar 6, 2026
284 of 287 checks passed
@eps1lon eps1lon deleted the update/react/19.3.0-canary-46103596-20260305 branch March 6, 2026 22:00
sokra pushed a commit that referenced this pull request Mar 6, 2026
@nextjs-bot @sokra
Upgrade React from 3bc2d414-20260304 to 46103596-20260305 (#90989)
e9891cf
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