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Copilot Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Dec 11, 2025

No incidents reported today.

Dec 10, 2025
Some macOS Actions jobs routing to Ubuntu instead
Resolved - 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.
Dec 10, 14:52 UTC
Update - We've applied a mitigation to ensure all macOS jobs route to macOS fulfillers and are monitoring for full recovery.
Dec 10, 14:32 UTC
Investigating - We are investigating reports of degraded performance for Actions
Dec 10, 13:34 UTC
Some Actions customers experiencing run start delays
Resolved - 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.
Dec 10, 11:05 UTC
Update - Actions is operating normally.
Dec 10, 11:05 UTC
Update - We have validated the mitigation and are no longer seeing impact.
Dec 10, 11:05 UTC
Update - We are seeing improvements in telemetry and are monitoring for full recovery.
Dec 10, 10:58 UTC
Update - We've applied a mitigation to fix the issues with queuing and running Actions jobs. We will continue monitoring to confirm whether this resolves the issue.
Dec 10, 10:25 UTC
Update - The team continues to investigate issues with some Actions jobs being queued for a long time. We will continue providing updates on the progress towards mitigation.
Dec 10, 09:41 UTC
Update - We're investigating Actions workflow runs taking longer than expected to start.
Dec 10, 09:13 UTC
Investigating - We are investigating reports of degraded performance for Actions
Dec 10, 09:11 UTC
Dec 9, 2025

No incidents reported.

Dec 8, 2025
Disruption with some GitHub services
Resolved - 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.
Dec 8, 22:33 UTC
Update - We are beginning to see signs of resolution after applying a mitigation. We expect full resolution within approximately 30 minutes.
Dec 8, 22:10 UTC
Update - We're continuing to investigate and mitigate issues with the GPT 4o model for Copilot completions. Users can currently work around this issue by updating their VS Code settings with "github.copilot.advanced.debug.overrideEngine": "gpt-41-copilot".
Dec 8, 22:04 UTC
Update - We are currently investigating failures with the GPT 4o model for Copilot completions.
Dec 8, 21:32 UTC
Investigating - We are investigating reports of impacted performance for some GitHub services.
Dec 8, 21:28 UTC
Potential disruption with our Agent Control Plane UI Settings
Resolved - 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.
Dec 8, 21:06 UTC
Update - We are investigating an incident affecting missing Agent Session data on the AI Settings page on Agent Control Plane.
Dec 8, 19:52 UTC
Investigating - We are investigating reports of impacted performance for some GitHub services.
Dec 8, 19:51 UTC
Dec 7, 2025

No incidents reported.

Dec 6, 2025

No incidents reported.

Dec 5, 2025
Team synchronization is experiencing delays for non enterprise managed users
Resolved - On December 5th, 2025, between 12:00 pm UTC and 9:00 pm UTC, our Team Synchronization service experienced a significant degradation, preventing over 209,000 organization teams from syncing their identity provider (IdP) groups. The incident was triggered by a buildup of synchronization requests, resulting in elevated Redis key usage and high CPU consumption on the underlying Redis cluster.

To mitigate further impact, we proactively paused all team synchronization requests between 3:00 pm UTC and 8:15 pm UTC, allowing us to stabilize the Redis cluster. Our engineering team also resolved the issue by flushing the affected Redis keys and queues, which promptly stopped runaway growth and restored service health. Additionally, we scaled up our infrastructure resources to improve our ability to process the high volume of synchronization requests. All pending team synchronizations were successfully processed following service restoration.

We are working to strengthen the Team Synchronization service by implementing a killswitch, adding throttling to prevent excessive enqueueing of synchronization requests, and improving the scheduler to avoid duplicate job requests. Additionally, we’re investing in better observability to alert when job drops occur. These efforts are focused on preventing similar incidents and improving overall reliability going forward.
Dec 5, 22:20 UTC
Update - We believe we reached a scaling limit and are increasing the amount of resources available to reduce the delays for the team synchronization process.
Dec 5, 21:40 UTC
Update - We're continuing to investigate the delays in the team synchronization and will report back once we have more information.
Dec 5, 19:17 UTC
Investigating - We are investigating reports of impacted performance for some GitHub services.
Dec 5, 18:38 UTC
Dec 4, 2025

No incidents reported.

Dec 3, 2025

No incidents reported.

Dec 2, 2025

No incidents reported.

Dec 1, 2025

No incidents reported.

Nov 30, 2025

No incidents reported.

Nov 29, 2025

No incidents reported.

Nov 28, 2025
Incident with Copilot
Resolved - On November 28th, 2025, between approximately 05:51 and 08:04 UTC, Copilot experienced an outage affecting the Claude Sonnet 4.5 model. Users attempting to use this model received an HTTP 400 error, resulting in 4.6% of total chat requests during this timeframe failing. Other models were not impacted.

The issue was caused by a misconfiguration deployed to an internal service which made Claude Sonnet 4.5 unavailable. The problem was identified and mitigated by reverting the change. GitHub is working to improve cross-service deploy safeguards and monitoring to prevent similar incidents in the future.
Nov 28, 08:23 UTC
Update - We have rolled out a fix and are monitoring for recovery.
Nov 28, 07:52 UTC
Update - We are investigating degraded performance with the Claude Sonnet 4.5 model in Copilot.
Nov 28, 07:04 UTC
Investigating - We are investigating reports of degraded performance for Copilot
Nov 28, 06:59 UTC
Nov 27, 2025

No incidents reported.

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