Resolved incident

Disruption with Copilot Code Review

GitHub · Major · Started

Duration
1h 48m
Severity
Major
Status
Resolved

Summary

Major · Resolved

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.<br /><br />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.<br /><br />We apologize for the disruption.

View official incident ↗

Event timeline

How this incident unfolded, from the official status page.

  1. Investigating

    GitHub

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

  2. Investigating

    GitHub

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

  3. Investigating

    GitHub

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

  4. Monitoring

    GitHub

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

  5. Resolved

    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.<br /><br />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.<br /><br />We apologize for the disruption.