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ensure maxPostponedStateSize is always respected#90060

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ztanner merged 4 commits intocanaryfrom
ztanner/fix-max-postpone-state
Feb 18, 2026
Merged

ensure maxPostponedStateSize is always respected#90060
ztanner merged 4 commits intocanaryfrom
ztanner/fix-max-postpone-state

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@ztanner ztanner commented Feb 16, 2026 •
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maxPostponedStateSize should be verified in all cases where the postponed body is buffered. This fixes a branch in self-hosted setups where that check was missing.

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nextjs-bot commented Feb 16, 2026 •
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Dev Server Metrics:

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Build Metrics:

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Change Thresholds:

  • Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
  • Size: Changes < 1KB AND < 1% are insignificant
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⚡ Dev Server

Metric Canary PR Change Trend
Cold (Listen) 455ms 455ms ✓ ▁▁▁▁▁
Cold (Ready in log) 439ms 439ms ✓ ▅▄▃▄▃
Cold (First Request) 1.259s 1.241s ✓ █▇▆▇▇
Warm (Listen) 456ms 455ms ✓ ▁▁▁▁▁
Warm (Ready in log) 444ms 444ms ✓ ▁▁▁▁▁
Warm (First Request) 350ms 350ms ✓ ▅▁▂▁▁
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 455ms 456ms ✓ ▁▁▁▅▁
Cold (Ready in log) 438ms 437ms ✓ ▁▁▁▅▃
Cold (First Request) 1.847s 1.835s ✓ ▁▁▁▄▁
Warm (Listen) 455ms 455ms ✓ ▁▁▁▅▁
Warm (Ready in log) 437ms 436ms ✓ ▁▁▁▅▃
Warm (First Request) 1.859s 1.850s ✓ ▁▁▁▄▂

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 3.925s 3.993s ✓ ▁▁▁▁▁
Cached Build 3.960s 3.998s ✓ ▁▁▁▁▁
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 13.906s 13.906s ✓ ▁▁▁▅▁
Cached Build 13.975s 14.096s ✓ ▁▁▁▄▁
node_modules Size 472 MB 472 MB ✓ ▁▁▁▁▁
📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **398 kB** → **398 kB** ⚠️ +11 B

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

Server

Middleware
Canary PR Change
middleware-b..fest.js gzip 758 B 767 B 🔴 +9 B (+1%)
Total 758 B 767 B ⚠️ +9 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 452 B 451 B ✓
Total 452 B 451 B ✅ -1 B

📦 Webpack

Client

Main Bundles
Canary PR Change
5528-HASH.js gzip 5.47 kB N/A -
6280-HASH.js gzip 57 kB N/A -
6335.HASH.js gzip 169 B N/A -
912-HASH.js gzip 4.53 kB N/A -
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9544-HASH.js gzip N/A 57.8 kB -
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Polyfills
Canary PR Change
polyfills-HASH.js gzip 39.4 kB 39.4 kB ✓
Total 39.4 kB 39.4 kB ✓
Pages
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_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 ✓
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Server

Edge SSR
Canary PR Change
edge-ssr.js gzip 126 kB 125 kB ✓
page.js gzip 250 kB 251 kB ✓
Total 375 kB 376 kB ⚠️ +573 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 43.4 kB 43.7 kB ✓
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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 3.89 MB 3.9 MB 🔴 +7.26 kB (+0%)
index.pack gzip 102 kB 104 kB 🔴 +1.53 kB (+1%)
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🔄 Shared (bundler-independent)

Runtimes
Canary PR Change
app-page-exp...dev.js gzip 316 kB 316 kB ✓
app-page-exp..prod.js gzip 168 kB 168 kB ✓
app-page-tur...dev.js gzip 316 kB 316 kB ✓
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app-route-tu...dev.js gzip 70.1 kB 70.1 kB ✓
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server.runti..prod.js gzip 63.5 kB 63.6 kB ✓
Total 2.8 MB 2.8 MB ⚠️ +59 B
📝 Changed Files (1 file)

Files with changes:

  • server.runtime.prod.js
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server.runtime.prod.js

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@ztanner ztanner force-pushed the ztanner/fix-max-postpone-state branch from fbd3b8e to e16a170 Compare February 18, 2026 07:21
@ztanner ztanner marked this pull request as ready for review February 18, 2026 07:28
@ztanner ztanner requested review from gnoff and ijjk February 18, 2026 07:28
@ztanner ztanner merged commit c885d48 into canary Feb 18, 2026
160 checks passed
@ztanner ztanner deleted the ztanner/fix-max-postpone-state branch February 18, 2026 16:53
@github-actions github-actions bot mentioned this pull request Feb 18, 2026
Open
ztanner added a commit that referenced this pull request Feb 25, 2026
@ztanner
ensure maxPostponedStateSize is always respected (#90060)
e03dd74 
`maxPostponedStateSize` should be verified in all cases where the
postponed body is buffered. This fixes a branch in self-hosted setups
where that check was missing.

(cherry picked from commit c885d48)
@ztanner ztanner mentioned this pull request Feb 25, 2026
Merged
ztanner added a commit that referenced this pull request Feb 25, 2026
@ztanner
[backport]: ensure maxPostponedStateSize is always respected (#90060) (…
5214ac1 
…#90471)

Backports:
- #90060
@github-actions github-actions bot added the locked label Mar 5, 2026
@github-actions github-actions bot locked as resolved and limited conversation to collaborators Mar 5, 2026
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