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GitHub: Disruption with Copilot Code Review
GitHub’s major Copilot code review incident ran from 2026-09-04 20:39 UTC to 2026-09-04 22:26 UTC (1 h 47 min). Affected pull request reviews failed to complete or post comments because an authentication-permissions change blocked submissions to the GitHub API; reverting the change restored normal operation.
Machine-written from the archived incident (Sol). Check the timeline before relying on it.
Timeline of updates
- investigating
We are investigating reports of impacted performance for some GitHub services.
- investigating
Some users may be experiencing failures when using Copilot code review. We have identified the root cause and are working on a mitigation.
- investigating
We are applying the mitigation and expect recovery within approximately 30 minutes.
- monitoring
The degradation has been mitigated. We are monitoring to ensure stability.
- 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.
Rewindex changes for this incident
- Major incident: Disruption with Copilot Code Review 2026-09-04 20:39 UTC
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). GitHub profile · Recent GitHub incidents · Markdown · JSON