GitHub Resolves 8-Hour Outage on Aug. 17

GitHub restored full service on Tuesday after a widespread outage lasting nearly eight hours disrupted core developer tools and enterprise workflows. The incident, which began on August 17 and was resolved later that day, impacted essential services including the platform's website, API, Actions automation, Pull Requests, authentication systems, and the AI coding assistant Copilot.

The outage was first reported at 1:40 PM UTC on August 17, with degraded performance quickly spreading across multiple systems. At its peak, GitHub reported error rates of approximately 20% for web experiences and API traffic. Archive downloads and raw repository content downloads experienced more severe issues, with failure rates reaching about 50%. Enterprise identity services were also affected, including SAML and OIDC authentication, SCIM provisioning, and Team Sync. By 2:31 PM UTC, the company confirmed that Copilot was experiencing degraded availability.

Recovery efforts were not immediate or linear. While GitHub announced mitigations and the identification of a "problematic component" by 4:36 PM UTC, several services experienced recurring failures. Git operations, Issues, and the API each...