# GitHub: Disruption with Copilot Code Review

- Provider: [GitHub](https://outages.cc/github.md)
- Type: Incident
- State: Resolved
- Worst impact: Partial outage
- Started: 2026-09-04 20:39 UTC
- Resolved: 2026-09-04 22:26 UTC (lasted 1 h 48 min)
- Official update: https://stspg.io/dddfhld6fj0z

## Updates from GitHub

### resolved, 2026-09-04 22:26 UTC

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.

### monitoring, 2026-09-04 22:25 UTC

The degradation has been mitigated. We are monitoring to ensure stability.

### investigating, 2026-09-04 21:54 UTC

We are applying the mitigation and expect recovery within approximately 30 minutes.

### investigating, 2026-09-04 20:57 UTC

Some users may be experiencing failures when using Copilot code review. We have identified the root cause and are working on a mitigation.

### investigating, 2026-09-04 20:39 UTC

We are investigating reports of impacted performance for some GitHub services.