Vercel experienced a major incident on August 20, 2026 affecting Functions, lasting 47m. The incident has been resolved; the full update timeline is below.
Affected components
Functions
Update timeline
- identified Aug 20, 2026, 05:46 PM UTC
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.
- monitoring Aug 20, 2026, 06:23 PM UTC
We have deployed a fix. Newly deployed container functions are working as expected.
- resolved Aug 20, 2026, 06:34 PM UTC
This incident has been resolved.