Changes / Vercel / New container functions are failing
Vercel: Major incident: New container functions are failing
Summary
Vercel reported a major Functions outage: newly deployed container functions could return 5XX errors from 2026-08-20 17:46 UTC until resolution at 2026-08-20 18:34 UTC (47 min). Customers could temporarily use a previously working deployment; Vercel reported deploying a fix at 18:23 UTC, restoring newly deployed container functions.
Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.
What changed
Before: not present
After: New container functions are failing
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After: major
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After: resolved
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After: 2026-08-20 17:46 UTC
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After: 2026-08-20 18:34 UTC
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After: Functions
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After: We've identified an issue where newly deployed container functions may return 5XX errors.
Customers can use a previously working container function deployment as a temporary mitigation. We are working on a fix and will provide additional updates as they become available.
Before: not present
After: We have deployed a fix. Newly deployed container functions are working as expected.
Before: not present
After: This incident has been resolved.
First version of this incident archived by Rewindex. View the live incident.
History of this incident
| When (UTC) | Change | Kind |
|---|---|---|
| Major incident: New container functions are failing (this change) Vercel reported a major Functions outage: newly deployed container functions could return 5XX errors from 2026-08-20 17:46 UTC until resolution at 2026-08-20 18:34 UTC (47 min). Customers could temporarily use a previously working deployment; Vercel reported deploying a fix at 18:23 UTC, restoring newly deployed container functions. | Major incident |