Resolved incident

Disruption with some GitHub services

GitHub · Minor · Started

Duration
49m
Severity
Minor
Status
Resolved

Summary

Minor · Resolved

On September 15, 2026 between 15:30 and 20:00 UTC, some Copilot code reviews on pull requests failed to complete. The cause was increased latency in an internal caching service that GitHub Copilot Code Review relies on to coordinate its review jobs. This caused a timeout in lock acquisition, which interrupted the job. We reverted the change to the internal caching service and restored normal operation by 20:00 UTC.<br /><br />We sincerely apologize for the disruption.

View official incident ↗

Event timeline

How this incident unfolded, from the official status page.

  1. Investigating

    GitHub

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

  2. Monitoring

    GitHub

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

  3. Resolved

    GitHub

    On September 15, 2026 between 15:30 and 20:00 UTC, some Copilot code reviews on pull requests failed to complete. The cause was increased latency in an internal caching service that GitHub Copilot Code Review relies on to coordinate its review jobs. This caused a timeout in lock acquisition, which interrupted the job. We reverted the change to the internal caching service and restored normal operation by 20:00 UTC.<br /><br />We sincerely apologize for the disruption.