Disruption with some GitHub services

Updates timeline

1. Investigating Jun 27, 02:02 PM UTC

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

2. Investigating Jun 27, 02:02 PM UTC

   We are conducting routine maintenance on our network infrastructure in the EU. This will not impact production traffic, but may result in slightly increased latency for the remainder of our work. We expect this to last until 19:00 UTC.

3. Monitoring Jun 27, 02:04 PM UTC

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

4. Monitoring Jun 27, 06:22 PM UTC

   This is progressing as expected, but we're going to extend the maintenance window by a couple of hours. Our new expected completion time is 21:00 UTC.

5. Monitoring Jun 27, 08:19 PM UTC

   Maintenance has completed and we've begun normalizing traffic in EU. We will monitor for a while longer before confirming resolution.

6. Resolved Jun 27, 08:33 PM UTC

   This incident was used to notify for a maintenance event. There is no specific root cause analysis. Work progressed as planned without any issues to report.