On September 4, 2026, between 20:04 and 22:26 UTC, GitHub Copilot code review experienced an increased failure rate. Affected pull request reviews failed to complete or post review comments.
The incident was caused by a change to the service’s authentication permissions that prevented it from submitting affected reviews to the GitHub API. We reverted the change and restored normal operation by 22:26 UTC.
We apologize for the disruption.
Posted Sep 04, 2026 - 22:26 UTC
Monitoring
The degradation has been mitigated. We are monitoring to ensure stability.
Posted Sep 04, 2026 - 22:25 UTC
Update
We are applying the mitigation and expect recovery within approximately 30 minutes.
Posted Sep 04, 2026 - 21:54 UTC
Update
Some users may be experiencing failures when using Copilot code review. We have identified the root cause and are working on a mitigation.
Posted Sep 04, 2026 - 20:57 UTC
Investigating
We are investigating reports of impacted performance for some GitHub services.
