Disruption with Copilot Code Review
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.
The latest update from GitHub.
State
Resolved
Started
57 d ago
2026-09-04 20:39 UTC
Lasted
1 h 48 min
until 2026-09-04 22:26 UTC
Worst impact
Partial outage
Timeline
5 updatesInvestigating
1 h 47 min 99%
Monitoring
1 min 1%
Updates
Times in UTCAs posted by GitHub
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.
The degradation has been mitigated. We are monitoring to ensure stability.
We are applying the mitigation and expect recovery within approximately 30 minutes.
Some users may be experiencing failures when using Copilot code review. We have identified the root cause and are working on a mitigation.
We are investigating reports of impacted performance for some GitHub services.
GitHub in the last 90 days
Full historyIncidents in 90 days
46
Days with an incident
34
Median duration
1 h 29 min
This incident
1.2× the median
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