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Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

Past Incidents

Sep 20, 2025

No incidents reported today.

Sep 19, 2025

No incidents reported.

Sep 18, 2025

No incidents reported.

Sep 17, 2025

No incidents reported.

Sep 16, 2025

No incidents reported.

Sep 15, 2025

EU - Disruption with some GitHub services

Resolved - On September 15th between 17:55 and 18:20 UTC, Copilot experienced degraded availability for all features. This was due a partial deployment of a feature flag to a global rate limiter. The flag triggered behavior that unintentionally rate limited all requests, resulting in 100% of them returning 403 errors. The issue was resolved by reverting the feature flag which resulted in immediate recovery.

The root cause of the incident was from an undetected edge case in our rate limiting logic. The flag was meant to scale down rate limiting for a subset of users, but unintentionally put our rate limiting configuration into an invalid state.

To prevent this from happening again, we have addressed the bug with our rate limiting. We are also adding additional monitors to detect anomalies in our traffic patterns, which will allow us to identify similar issues during future deployments. Furthermore, we are exploring ways to test our rate limit scaling in our internal environment to enhance our pre-production validation process.

Sep 15, 18:28 UTC

Investigating - We are currently investigating this issue.
Sep 15, 18:21 UTC

Sep 14, 2025

No incidents reported.

Sep 13, 2025

No incidents reported.

Sep 12, 2025

No incidents reported.

Sep 11, 2025

No incidents reported.

Sep 10, 2025

No incidents reported.

Sep 9, 2025

No incidents reported.

Sep 8, 2025

No incidents reported.

Sep 7, 2025

No incidents reported.

Sep 6, 2025

No incidents reported.