Mergify experienced a major incident on May 28, 2026 affecting GitHub API Requests (githubstatus.com), lasting 8m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 28, 2026, 01:36 PM UTC
We are currently experiencing a disruption affecting merge queue operations. On our side, we are observing a surge of 404 Branch not found responses from GitHub APIs, which is impacting branch processing and merge queue execution. We are actively investigating the issue and monitoring GitHub API behavior closely. We will provide updates as more information becomes available.
- resolved May 28, 2026, 01:44 PM UTC
The incident affecting merge queue operations has been resolved. The issue was caused by a transient surge of 404 Branch not found responses returned by GitHub APIs, which temporarily impacted branch processing and merge queue execution. The errors have subsided and merge queue operations are now functioning normally. We continue to monitor the situation closely.