Outage in GitHub Enterprise Cloud - EU
EU - Copilot Code Review Failing
Resolved MajorIncident Report
Summary AI Generated
GitHub Enterprise Cloud EU experienced a major incident where Copilot Code Review was failing, with users encountering "Copilot ran into an error" messages on pull requests that requested code reviews. The service degradation affected Copilot Code Review functionality for approximately 2 hours, requiring customers to re-request reviews and cancel any Actions runs that had been running for longer than 20 minutes. The issue was resolved through a mitigation that was fully deployed, restoring normal operation for new code reviews.
We are investigating reports of impacted performance for some GitHub services.
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Latest Updates ( sorted recent to last )
RESOLVED
2 days ago - at 06/04/2026 07:59PM
This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.
MONITORING
2 days ago - at 06/04/2026 07:41PM
The mitigation for Copilot Code Review is now fully deployed, and new reviews are working as expected. We are continuing to monitor for full resolution.
Customers may need to re-request Copilot Code Review. Copilot Code Review Actions runs running for longer than 20 minutes may be safely cancelled.
MONITORING
2 days ago - at 06/04/2026 07:07PM
The degradation has been mitigated. We are monitoring to ensure stability.
INVESTIGATING
2 days ago - at 06/04/2026 07:07PM
The mitigation for Copilot Code Review is now fully deployed, and new reviews are working as expected.
Customers may need to re-request Copilot Code Review. Copilot Code Review Actions runs running for longer than 20 minutes may be safely cancelled.
INVESTIGATING
2 days ago - at 06/04/2026 06:52PM
The mitigation for Copilot Code Review is rolling out and we are seeing early signs of recovery.
INVESTIGATING
2 days ago - at 06/04/2026 06:22PM
We have identified that Copilot Code Review users may see "Copilot ran into an error" on Pull Requests that requested Copilot Code Review.
A mitigation is in progress, we expect mitigation in approximately 30m.
GitHub Enterprise Cloud with Data Residency is not impacted.
INVESTIGATING
2 days ago - at 06/04/2026 06:03PM
We have identified that Copilot Code Review. Users may see "Copilot ran into an error" on Pull Requests that requested Copilot Code Review.
A mitigation is in progress.
INVESTIGATING
2 days ago - at 06/04/2026 06:02PM
We are investigating reports of impacted performance for some GitHub services.
Latest GitHub Enterprise Cloud - EU outages
EU - Disruption with some GitHub services - 4 days ago
EU - Delays with Code Scanning and Billing - 5 days ago
EU - Incident with Actions, Issues and Webhooks - 10 days ago
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