Disruption with Copilot next edit suggestions

Resolved

Minor impact

Started

Lasted 1h 30m

View official incident ↗

Updates

  1. Resolved

    On June 17, 2026, between 16:57 UTC and 19:14 UTC, Copilot code completions were degraded and users were unable to receive Next Edit Suggestions. Standard ghost text code completions were not affected. This was due to a configuration change that caused the service's routing layer to incorrectly discard all Next Edit Suggestion model endpoints as invalid.<br /><br />We mitigated the incident by deploying a corrected configuration change at 18:55 UTC, with full recovery observed at 19:14 UTC.<br /><br />We are working to improve the resilience of our routing layer to limit impact due to a subset of invalid configurations, and to improve our alerting to detect sudden traffic changes that are not captured by standard error rate monitors.

  2. Monitoring

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

  3. Investigating

    We have applied mitigation and are seeing recovery

  4. Investigating

    We have identified a likely cause and are applying a mitigation

  5. Investigating

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