Resolved after 20 minutes, affecting Panel and Vault and 1 more, on August 9, 2026.
We have identified the issue to be caused by a bug in Vercel's internal CDN routing. After migrating domains towards the new deployment, Vercel served outdated files via their CDN even after purging the CDN cache.
Affected components
Update timeline
- investigating Aug 09, 2026, 02:56 PM UTC
We are observing an increase in 4xx error related to the recent deployment of a system update. We are investigating the root cause.
- resolved Aug 09, 2026, 03:17 PM UTC
We have identified the issue to be caused by a bug in Vercel's internal CDN routing. After migrating domains towards the new deployment, Vercel served outdated files via their CDN even after purging the CDN cache.
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