GitHub Outage History

GitHub experienced increased latency for Git operations affecting users on the west coast for 7.7 hours. The issue was resolved by implementing a new network path and redirecting traffic to the Seattle region to reduce load and improve routing. GitHub successfully completed the network changes and confirmed resolution after monitoring showed performance improvements.

GitHub experienced a major incident affecting Copilot services, with degraded performance and unavailable Coding Agent session logs in the UI. Users also reported severely throttled CDN release downloads at speeds of 100-300 Kb/s. The incident was resolved after 51 minutes with all services returning to normal operation.

GitHub experienced a 48-minute disruption affecting Copilot Coding Agent sessions, with users unable to start or view agent sessions properly. The incident was resolved after GitHub identified the root cause and successfully deployed a mitigation fix.

GitHub experienced degraded performance affecting Git Operations for 3.2 hours, with users on the US West Coast experiencing increased latency during git operations, particularly for large pushes and pulls. The incident was classified as minor with no increase in operation failures reported. GitHub resolved the issue and indicated a detailed root cause analysis would be provided.

GitHub experienced degraded webhook performance with delayed deliveries for 58 minutes. The incident affected webhook functionality, causing delivery latency issues. The service was restored after investigation and monitoring showed recovery.

GitHub experienced a service incident where users encountered errors when starting or connecting to Codespaces, preventing access to their development environments. The issue affected GitHub Codespaces functionality, making some development environments inaccessible to users. The incident was resolved after 29 minutes of investigation and remediation efforts.

GitHub experienced degraded performance affecting multiple services including Actions, Issues, Packages, Feeds, Profiles, Registry Metadata, Star, and User Dashboard for 1.1 hours. Users encountered elevated error rates and slower response times when accessing these services. GitHub identified the potential cause, deployed mitigations, and resolved the incident.

GitHub experienced a 5.8-hour incident where extensions failed to install in newly created Codespaces, causing a degraded development experience for users. The issue was caused by IP blocks preventing Codespaces from downloading extensions from the Visual Studio Marketplace. GitHub resolved the incident by removing the IP blocks and deploying a fix to restore extension functionality.

GitHub Actions experienced degraded performance for 1.3 hours, with users encountering 401 Unauthorized errors when attempting to download resources. The incident affected the Actions service and has been resolved. GitHub is preparing a detailed root cause analysis to be shared once available.

GitHub experienced a service disruption lasting 53 minutes that caused impacted performance and elevated error rates across some of their services. The incident was resolved after GitHub investigated the performance issues and monitored decreasing error rates. The company indicated they would provide a detailed root cause analysis once available.