Expo experienced a major incident on April 9, 2026 affecting Push Notifications Broker, lasting 1h 4m. The incident has been resolved; the full update timeline is below.
Affected components
Push Notifications Broker
Update timeline
- investigating Apr 09, 2026, 10:43 PM UTC
We are investigating a partial outage of the push notification service.
- resolved Apr 09, 2026, 11:36 PM UTC
The root cause has been fixed and our charts confirm availability is back to normal. We apologize for the outage.
- postmortem Apr 09, 2026, 11:36 PM UTC
The Expo push notification service suffered from partial unavailability due to an outage of one of our cache servers. Specifically, we deployed a change that optimized our cache entries to be more compact to improve the performance and efficiency of our caches. However, the cache could not handle the load from evicting the old entries. Clearing the cache solved the problem.