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Restore partial fallback shell upgrade coverage#96096

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devjiwonchoi merged 2 commits into
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jiwon/fix-partial-fallback-shell-upgrade-fixture
Jul 23, 2026
Merged

Restore partial fallback shell upgrade coverage#96096
devjiwonchoi merged 2 commits into
canaryfrom
jiwon/fix-partial-fallback-shell-upgrade-fixture

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@devjiwonchoi devjiwonchoi commented Jul 23, 2026 •
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Why?

Deployment tests for partial-fallback-shell-upgrade repeatedly fail after #96074 because the fixture still expects partial fallback shell upgrades without opting into Partial Prefetching. #96074 intentionally emits partialFallback metadata only when partialPrefetching is enabled.

Failed deployment test: https://github.com/vercel/next.js/actions/runs/30008120037/job/89223758358#step:32:464

Passed: https://github.com/vercel/next.js/actions/runs/30031537314/job/89297370591#step:32:107

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Stats from current PR

✅ No significant changes detected

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Change Thresholds:

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Metric Canary PR Change Trend
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📎 Tarball URL 
https://vercel-packages.vercel.app/next/commits/61056fcbd1eb53bd6152143a1275bc215320b2e2/next

Commit: 61056fc

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Tests Passed

Commit: 61056fc

@devjiwonchoi
devjiwonchoi marked this pull request as ready for review July 23, 2026 17:43
@devjiwonchoi
devjiwonchoi merged commit e5307e0 into canary Jul 23, 2026
228 of 230 checks passed
@devjiwonchoi
devjiwonchoi deleted the jiwon/fix-partial-fallback-shell-upgrade-fixture branch July 23, 2026 18:50
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