GitHub Availability Report: June 2025

In June 2025, GitHub experienced three significant service disruptions impacting various aspects of its platform. On June 5, a misconfiguration caused a spike in load for GitHub Actions, resulting in delayed starts and job failures, which also affected Copilot Coding Agent sessions and Pages deployments. This was mitigated by adjusting the service configuration. On June 12, an outage from a model provider led to degraded performance of the GitHub Copilot service, notably affecting Gemini and Claude models, and was addressed by disabling affected provider endpoints and updating incident response strategies. On June 17, a routing policy deployment caused reachability issues in datacenters, heavily impacting authenticated and unauthenticated user requests, which was quickly resolved by rolling back the deployment. GitHub is implementing improvements in service configuration, incident response, and validation processes to prevent future occurrences, with ongoing updates available on their status page and engineering blog.