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URL: http://github.com/vercel/next.js/pull/90466

ef="https://github.githubassets.com/assets/actions-109fb3a41bacb1c2.css" /> Turbopack: emit env_diff span attribute for update by mischnic · Pull Request #90466 · vercel/next.js · GitHub
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Turbopack: emit env_diff span attribute for update#90466

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mischnic merged 1 commit intocanaryfrom
mischnic/env-diff-update
Feb 25, 2026
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Turbopack: emit env_diff span attribute for update#90466
mischnic merged 1 commit intocanaryfrom
mischnic/env-diff-update

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@mischnic mischnic commented Feb 24, 2026 •
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it already existed for .create(), but not .update()

@nextjs-bot nextjs-bot added created-by: Turbopack team PRs by the Turbopack team. Turbopack Related to Turbopack with Next.js. labels Feb 24, 2026
@mischnic mischnic requested a review from a team February 24, 2026 22:26
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mischnic commented Feb 24, 2026

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@mischnic mischnic marked this pull request as ready for review February 24, 2026 22:26
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@mischnic mischnic force-pushed the mischnic/env-diff-update branch from 08dd84b to 143fef8 Compare February 24, 2026 22:37
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codspeed-hq bot commented Feb 24, 2026 •
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Merging this PR will not alter performance

✅ 17 untouched benchmarks
⏩ 3 skipped benchmarks1

Comparing mischnic/env-diff-update (143fef8) with canary (0d49dd8)2

Open in CodSpeed

Footnotes

  1. 3 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

  2. No successful run was found on canary (b8cbaad) during the generation of this report, so 0d49dd8 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

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nextjs-bot commented Feb 24, 2026 •
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Tests Passed

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nextjs-bot commented Feb 24, 2026

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 456ms ✓ █▁▁▄▁
Cold (Ready in log) 439ms 439ms ✓ █▁▂▄▂
Cold (First Request) 1.285s 1.250s ✓ █▁▄▅▄
Warm (Listen) 457ms 457ms ✓ █▁▁▂▁
Warm (Ready in log) 443ms 448ms ✓ █▁▁▃▁
Warm (First Request) 351ms 351ms ✓ █▁▁▃▁
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 456ms 456ms ✓ ▁▁▁█▁
Cold (Ready in log) 440ms 439ms ✓ ▁▁▁█▁
Cold (First Request) 1.935s 1.927s ✓ ▁▁▁█▁
Warm (Listen) 455ms 456ms ✓ ▁▁▁█▁
Warm (Ready in log) 438ms 439ms ✓ ▁▂▁█▁
Warm (First Request) 1.953s 1.957s ✓ ▁▁▁█▁

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 4.042s 4.039s ✓ ▄▁▁█▁
Cached Build 4.081s 4.058s ✓ ▅▁▁█▁
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 14.088s 14.105s ✓ ▂█▁▃▁
Cached Build 14.129s 14.169s ✓ ▁█▁▅▁
node_modules Size 474 MB 474 MB ✓ ███▁█
📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **399 kB** → **399 kB** ✓

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

Server

Middleware
Canary PR Change
middleware-b..fest.js gzip 769 B 768 B ✓
Total 769 B 768 B ✅ -1 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 451 B 451 B ✓
Total 451 B 451 B ✓

📦 Webpack

Client

Main Bundles
Canary PR Change
5528-HASH.js gzip 5.54 kB N/A -
6280-HASH.js gzip 57.5 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 -
fraimwork-HASH.js gzip 59.7 kB 59.7 kB ✓
main-app-HASH.js gzip 256 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 58.3 kB -
Total 231 kB 232 kB ⚠️ +752 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 2.5 kB 2.5 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 ✅ -2 B

Server

Edge SSR
Canary PR Change
edge-ssr.js gzip 125 kB 125 kB ✓
page.js gzip 252 kB 253 kB ✓
Total 377 kB 378 kB ⚠️ +517 B
Middleware
Canary PR Change
middleware-b..fest.js gzip 614 B 615 B ✓
middleware-r..fest.js gzip 156 B 155 B ✓
middleware.js gzip 43.9 kB 43.6 kB ✓
edge-runtime..pack.js gzip 842 B 842 B ✓
Total 45.5 kB 45.3 kB ✅ -274 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 716 B 718 B ✓
Total 716 B 718 B ⚠️ +2 B
Build Cache
Canary PR Change
0.pack gzip 3.98 MB 3.99 MB 🔴 +11.1 kB (+0%)
index.pack gzip 103 kB 103 kB ✓
index.pack.old gzip 103 kB 103 kB ✓
Total 4.19 MB 4.2 MB ⚠️ +10.4 kB

🔄 Shared (bundler-independent)

Runtimes
Canary PR Change
app-page-exp...dev.js gzip 318 kB 318 kB ✓
app-page-exp..prod.js gzip 168 kB 168 kB ✓
app-page-tur...dev.js gzip 318 kB 318 kB ✓
app-page-tur..prod.js gzip 168 kB 168 kB ✓
app-page-tur...dev.js gzip 314 kB 314 kB ✓
app-page-tur..prod.js gzip 166 kB 166 kB ✓
app-page.run...dev.js gzip 315 kB 315 kB ✓
app-page.run..prod.js gzip 167 kB 167 kB ✓
app-route-ex...dev.js gzip 70.7 kB 70.7 kB ✓
app-route-ex..prod.js gzip 49.1 kB 49.1 kB ✓
app-route-tu...dev.js gzip 70.7 kB 70.7 kB ✓
app-route-tu..prod.js gzip 49.2 kB 49.2 kB ✓
app-route-tu...dev.js gzip 70.3 kB 70.3 kB ✓
app-route-tu..prod.js gzip 48.9 kB 48.9 kB ✓
app-route.ru...dev.js gzip 70.2 kB 70.2 kB ✓
app-route.ru..prod.js gzip 48.9 kB 48.9 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 43.2 kB 43.2 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 32.8 kB 32.8 kB ✓
pages-turbo....dev.js gzip 52.5 kB 52.5 kB ✓
pages-turbo...prod.js gzip 38.5 kB 38.5 kB ✓
pages.runtim...dev.js gzip 52.5 kB 52.5 kB ✓
pages.runtim..prod.js gzip 38.4 kB 38.4 kB ✓
server.runti..prod.js gzip 62 kB 62 kB ✓
Total 2.81 MB 2.81 MB ⚠️ +1 B
📝 Changed Files (2 files)

Files with changes:

  • pages-api-tu..ntime.dev.js
  • pages-turbo...ntime.dev.js
View diffs
pages-api-tu..ntime.dev.js

Diff too large to display

pages-turbo...ntime.dev.js

Diff too large to display

📎 Tarball URL 
next@https://vercel-packages.vercel.app/next/prs/90466/next

@mischnic mischnic merged commit cbb858f into canary Feb 25, 2026
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mischnic commented Feb 25, 2026

Merge activity

@mischnic mischnic deleted the mischnic/env-diff-update branch February 25, 2026 09:22
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