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Upgrade React from 22e4f993-20260811 to eb8feb71-20260814 - #97382

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update/react/19.3.0-canary-eb8feb71-20260814
Aug 14, 2026
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Upgrade React from 22e4f993-20260811 to eb8feb71-20260814#97382
next-js-bot[bot] merged 6 commits into
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update/react/19.3.0-canary-eb8feb71-20260814

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next-js-bot Bot enabled auto-merge (squash) August 14, 2026 17:51
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Stats from current PR

🔴 1 regression, 3 improvements

Metric Canary PR Change Trend
Turbo Build Time 5.728s 6.505s 🔴 +777ms (+14%) ▂▁█▂▄
Webpack Build Time (cached) 27.537s 26.802s 🟢 735ms (-3%) █▁█▁▁
Webpack Cold (First Request) 3.919s 3.675s 🟢 244ms (-6%) ▇▁█▁▁
Webpack Warm (First Request) 3.845s 3.590s 🟢 255ms (-7%) ▇▁█▁▁
📊 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) 813ms 812ms ✓ ▂▁█▂▂
Cold (Ready in log) 788ms 787ms ✓ ▁▁█▁▂
Cold (First Request) 1.304s 1.306s ✓ ▁▁█▂▂
Warm (Listen) 815ms 813ms ✓ ▁▁█▁▁
Warm (Ready in log) 799ms 812ms ✓ ▁▁█▁▁
Warm (First Request) 1.328s 1.362s ✓ ▂▁█▂▂
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 866ms 863ms ✓ █▁█▂▂
Cold (Ready in log) 866ms 828ms ✓ █▁█▁▁
Cold (First Request) 3.919s 3.675s 🟢 244ms (-6%) ▇▁█▁▁
Warm (Listen) 866ms 814ms ✓ █▁█▂▂
Warm (Ready in log) 855ms 819ms ✓ █▁█▁▁
Warm (First Request) 3.845s 3.590s 🟢 255ms (-7%) ▇▁█▁▁

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 5.728s 6.505s 🔴 +777ms (+14%) ▂▁█▂▄
Cached Build 2.998s 2.950s ✓ ▃▁█▃▃
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 26.733s 26.609s ✓ █▁█▁▁
Cached Build 27.537s 26.802s 🟢 735ms (-3%) █▁█▁▁
node_modules Size 554 MB 554 MB ✓ █████
📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles
Canary PR Change
001u0b2joup71.js gzip 158 B N/A -
050icza-xjz0i.js gzip 5.73 kB N/A -
07jdby0ue616s.js gzip 450 B N/A -
0bjdc8muo74n5.js gzip 8.71 kB N/A -
0cz1d0mv5g_q7.js gzip 39.4 kB 39.4 kB ✓
0l7v_4ujei6du.js gzip 155 B N/A -
0rci1f3or1a19.js gzip 13.3 kB N/A -
0xojv0e93ooua.js gzip 46.6 kB N/A -
1_2x714--ii1i.js gzip 8.76 kB N/A -
1-3y752pkth5-.js gzip 10 kB N/A -
15ekz79jvwm_v.js gzip 169 B N/A -
178ugkji253tc.js gzip 155 B N/A -
1elt1qium-r2m.css gzip 115 B 115 B ✓
1k6dd7su4cfei.js gzip 3.57 kB N/A -
1tf1phijqlx9j.js gzip 220 B 220 B ✓
1uzabyd1120a1.js gzip 8.71 kB N/A -
1znw5adf88glb.js gzip 155 B N/A -
2-ufv8lc-g7gg.js gzip 10.6 kB N/A -
20s0pi0hq1f2r.js gzip 157 B N/A -
21kmjy_10x14f.js gzip 8.81 kB N/A -
28dhc6t85q1_p.js gzip 8.78 kB N/A -
2a1avfu038zmc.js gzip 156 B N/A -
2d9ahzfc7-mlw.js gzip 160 B N/A -
2f-ilvczue-tp.js gzip 9.46 kB N/A -
2f1u17u5c8iny.js gzip 8.79 kB N/A -
2fklnf1x-tk68.js gzip 7.53 kB N/A -
2ikltg_8iegxw.js gzip 10.3 kB N/A -
2m47_wqa8rsrn.js gzip 71.5 kB N/A -
2u3p_nsfgrvcq.js gzip 152 B N/A -
2uhp9trxum2wu.js gzip 157 B N/A -
2vsjj7k7f7bg2.js gzip 157 B N/A -
2vxi673cz1-t4.js gzip 8.79 kB N/A -
2ze-cdivo-j2l.js gzip 65.6 kB N/A -
3464crh06ayn3.js gzip 155 B N/A -
38-q43pzktqhs.js gzip 1.46 kB N/A -
3mrwxzed0ylgv.js gzip 13.1 kB N/A -
3nbojhxiy1qv_.js gzip 13.7 kB N/A -
3njsb-tw1orcj.js gzip 161 B N/A -
41u5s3oe2-erp.js gzip 2.29 kB N/A -
445s_9hf8o7ao.js gzip 8.76 kB N/A -
turbopack-0d..9ejy.js gzip 3.74 kB 3.74 kB ✓
0-6bcj16ji2wf.js gzip N/A 10.6 kB -
05d0jzkhr4rde.js gzip N/A 46.6 kB -
07ryk0jced-sc.js gzip N/A 8.78 kB -
0c73-qyzfravg.js gzip N/A 65.6 kB -
0jwho9fkrb_t3.js gzip N/A 2.29 kB -
0n36hd8813xx4.js gzip N/A 71.7 kB -
0roh390ijzxa5.js gzip N/A 8.75 kB -
0vex9w55ursqj.js gzip N/A 8.79 kB -
0via8gp3ngh8r.js gzip N/A 160 B -
12qyj8xq8vn2t.js gzip N/A 156 B -
13fdp6hysi38e.js gzip N/A 7.53 kB -
17oe55cu76cd7.js gzip N/A 450 B -
1bd97weu8m6tm.js gzip N/A 156 B -
1drww5xikb-c-.js gzip N/A 9.46 kB -
1g60xde_dv17t.js gzip N/A 8.79 kB -
1pgd8s3-gd3tu.js gzip N/A 160 B -
1uzv47btzam64.js gzip N/A 5.73 kB -
1vy7n7wxv_rh5.js gzip N/A 8.81 kB -
2-0i7pl900-ou.js gzip N/A 8.71 kB -
2-kcbngm7ik7y.js gzip N/A 8.75 kB -
20s4_0zp1v96s.js gzip N/A 157 B -
29p5-xa4jmdhg.js gzip N/A 13.7 kB -
2lpk5_hknut8q.js gzip N/A 13.1 kB -
2o4cibp3awtbw.js gzip N/A 3.56 kB -
2ugc69z0t0ypz.js gzip N/A 1.46 kB -
3-xmrlwxqobau.js gzip N/A 155 B -
34dqja574ixpp.js gzip N/A 155 B -
36dn8i-_3dnq5.js gzip N/A 10 kB -
3fljpmwcjxqhx.js gzip N/A 10.3 kB -
3g7le0celmtod.js gzip N/A 169 B -
3gz44skqdlsrb.js gzip N/A 8.71 kB -
3i_kon681wau7.js gzip N/A 151 B -
3n7270d5ntprf.js gzip N/A 156 B -
3t-3d0khhiag2.js gzip N/A 156 B -
3y9tus7kb5su0.js gzip N/A 13.3 kB -
3yth5d6zjkudl.js gzip N/A 156 B -
3z4ext6uaiwrl.js gzip N/A 157 B -
Total 401 kB 401 kB ⚠️ +135 B

Server

Middleware
Canary PR Change
middleware-b..fest.js gzip 1.05 kB 1.05 kB ✓
Total 1.05 kB 1.05 kB ✓
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 880 B 873 B ✓
Total 880 B 873 B ✅ -7 B
Build Cache
Canary PR Change
00000001.sst gzip 13.2 MB 14 MB 🔴 +811 kB (+6%)
00000002.sst gzip 12.7 MB 14.2 MB 🔴 +1.52 MB (+12%)
00000003.sst gzip 15 MB 14.7 MB 🟢 252 kB (-2%)
00000004.sst gzip 14.5 MB 12.3 MB 🟢 2.14 MB (-15%)
00000005.sst gzip 10.2 MB 10.2 MB ✓
00000006.sst gzip 2.8 MB 2.8 MB ✓
00000007.sst gzip 59 B 59 B ✓
00000008.meta gzip 89 B 89 B ✓
00000009.meta gzip 298 kB 298 kB ✓
00000010.meta gzip 298 kB 298 kB ✓
00000011.meta gzip 298 kB 298 kB ✓
00000012.sst gzip 52.5 kB 51.3 kB 🟢 1.2 kB (-2%)
00000013.sst gzip 1.78 MB 1.83 MB 🔴 +49.3 kB (+3%)
00000014.sst gzip 59 B 59 B ✓
00000015.meta gzip 116 B 116 B ✓
00000016.meta gzip 326 kB 326 kB ✓
00000017.meta gzip 404 kB 406 kB ✓
00000018.sst gzip 53.1 kB 51.9 kB 🟢 1.2 kB (-2%)
00000019.sst gzip 1.4 MB 1.4 MB ✓
00000020.sst gzip 59 B 59 B ✓
00000021.meta gzip 116 B 116 B ✓
00000022.meta gzip 326 kB 326 kB ✓
00000023.meta gzip 372 kB 372 kB ✓
00000024.sst gzip 53.2 kB 52.1 kB 🟢 1.1 kB (-2%)
00000025.sst gzip 1.4 MB 1.4 MB ✓
00000026.sst gzip 59 B 59 B ✓
00000027.meta gzip 116 B 116 B ✓
00000028.meta gzip 326 kB 326 kB ✓
00000029.meta gzip 372 kB 372 kB ✓
00000030.sst gzip 52.7 kB 51.3 kB 🟢 1.39 kB (-3%)
00000031.sst gzip 1.4 MB 1.4 MB ✓
00000032.sst gzip 59 B 59 B ✓
00000033.meta gzip 116 B 116 B ✓
00000034.meta gzip 326 kB 326 kB ✓
00000035.meta gzip 372 kB 372 kB ✓
00000036.sst gzip 53.1 kB 51.8 kB 🟢 1.26 kB (-2%)
00000037.sst gzip 1.4 MB 1.4 MB ✓
00000038.sst gzip 59 B 59 B ✓
00000039.meta gzip 116 B 116 B ✓
00000040.meta gzip 326 kB 326 kB ✓
00000041.meta gzip 372 kB 372 kB ✓
CURRENT gzip 94 B 90 B 🟢 4 B (-4%)
LOG gzip 669 B 671 B ✓
Total 80.4 MB 80.4 MB ✅ -11.2 kB

📦 Webpack

Client

Main Bundles
Canary PR Change
3322-HASH.js gzip 65.5 kB N/A -
4191.HASH.js gzip 169 B N/A -
7920-HASH.js gzip 4.67 kB N/A -
9784-HASH.js gzip 5.63 kB N/A -
b1ad9f4c-HASH.js gzip 63.4 kB N/A -
framework-HASH.js gzip 59.7 kB 59.7 kB ✓
main-app-HASH.js gzip 253 B 252 B ✓
main-HASH.js gzip 40.1 kB 40.1 kB ✓
webpack-HASH.js gzip 1.68 kB 1.68 kB ✓
3577.HASH.js gzip N/A 168 B -
578-HASH.js gzip N/A 66.2 kB -
8590-HASH.js gzip N/A 5.61 kB -
9750-HASH.js gzip N/A 4.68 kB -
a8984546-HASH.js gzip N/A 63.5 kB -
Total 241 kB 242 kB ⚠️ +740 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 193 B ✓
_error-HASH.js gzip 181 B 182 B ✓
css-HASH.js gzip 334 B 331 B ✓
dynamic-HASH.js gzip 1.81 kB 1.81 kB ✓
edge-ssr-HASH.js gzip 255 B 253 B ✓
head-HASH.js gzip 349 B 351 B ✓
hooks-HASH.js gzip 382 B 384 B ✓
image-HASH.js gzip 581 B 582 B ✓
index-HASH.js gzip 260 B 259 B ✓
link-HASH.js gzip 2.48 kB 2.48 kB ✓
routerDirect..HASH.js gzip 317 B 318 B ✓
script-HASH.js gzip 384 B 386 B ✓
withRouter-HASH.js gzip 316 B 315 B ✓
1afbb74e6ecf..834.css gzip 106 B 106 B ✓
Total 7.95 kB 7.96 kB ⚠️ +4 B

Server

Edge SSR
Canary PR Change
edge-ssr.js gzip 129 kB 129 kB ✓
page.js gzip 294 kB 295 kB ✓
Total 423 kB 423 kB ✅ -25 B
Middleware
Canary PR Change
middleware-b..fest.js gzip 618 B 616 B ✓
middleware-r..fest.js gzip 156 B 156 B ✓
middleware.js gzip 46 kB 45.6 kB ✓
edge-runtime..pack.js gzip 842 B 842 B ✓
Total 47.7 kB 47.2 kB ✅ -452 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 717 B 718 B ✓
Total 717 B 718 B ⚠️ +1 B
Build Cache
Canary PR Change
0.pack gzip 4.85 MB 4.85 MB 🟢 8.26 kB (0%)
index.pack gzip 123 kB 121 kB 🟢 2 kB (-2%)
index.pack.old gzip 122 kB 121 kB ✓
Total 5.1 MB 5.09 MB ✅ -11.4 kB

🔄 Shared (bundler-independent)

Runtimes
Canary PR Change
app-page-exp...dev.js gzip 375 kB 375 kB ✓
app-page-exp..prod.js gzip 207 kB 207 kB ✓
app-page-tur...dev.js gzip 375 kB 375 kB ✓
app-page-tur..prod.js gzip 207 kB 207 kB ✓
app-page-tur...dev.js gzip 371 kB 371 kB ✓
app-page-tur..prod.js gzip 204 kB 204 kB ✓
app-page.run...dev.js gzip 371 kB 371 kB ✓
app-page.run..prod.js gzip 204 kB 204 kB ✓
app-route-ex...dev.js gzip 83.1 kB 83.1 kB ✓
app-route-ex..prod.js gzip 56.2 kB 56.2 kB ✓
app-route-tu...dev.js gzip 83.2 kB 83.2 kB ✓
app-route-tu..prod.js gzip 56.2 kB 56.2 kB ✓
app-route-tu...dev.js gzip 82.7 kB 82.7 kB ✓
app-route-tu..prod.js gzip 56 kB 56 kB ✓
app-route.ru...dev.js gzip 82.7 kB 82.7 kB ✓
app-route.ru..prod.js gzip 55.9 kB 55.9 kB ✓
dev-validati...dev.js gzip 134 kB 134 kB ✓
dev-validati...dev.js gzip 134 kB 134 kB ✓
dev-validati...dev.js gzip 132 kB 132 kB ✓
dev-validati...dev.js gzip 132 kB 132 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 46.6 kB 46.6 kB ✓
pages-api-tu..prod.js gzip 34.7 kB 34.7 kB ✓
pages-api.ru...dev.js gzip 46.6 kB 46.6 kB ✓
pages-api.ru..prod.js gzip 34.7 kB 34.7 kB ✓
pages-turbo....dev.js gzip 55.4 kB 55.4 kB ✓
pages-turbo...prod.js gzip 40.2 kB 40.2 kB ✓
pages.runtim...dev.js gzip 55.3 kB 55.3 kB ✓
pages.runtim..prod.js gzip 40.2 kB 40.2 kB ✓
server.runti..prod.js gzip 67.2 kB 67.2 kB ✓
use-cache-pr...dev.js gzip 72.7 kB 72.7 kB ✓
use-cache-pr...dev.js gzip 72.8 kB 72.8 kB ✓
use-cache-pr...dev.js gzip 71 kB 71 kB ✓
use-cache-pr...dev.js gzip 71 kB 71 kB ✓
Total 4.11 MB 4.11 MB ✅ -28 B
📝 Changed Files (6 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
  • pages-api-tu..ntime.dev.js
  • pages-turbo...ntime.dev.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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pages-api-tu..ntime.dev.js

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pages-turbo...ntime.dev.js

Diff too large to display

📎 Tarball URL 
https://vercel-packages.vercel.app/next/commits/c78f5a034a50b945fd38ff9d7fd992e2b8fd326d/next

Commit: c78f5a0

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Tests Passed

Commit: c78f5a0

@next-js-bot
next-js-bot Bot merged commit 49e30f6 into canary Aug 14, 2026
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next-js-bot Bot deleted the update/react/19.3.0-canary-eb8feb71-20260814 branch August 14, 2026 20:10
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