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GitHub Copilot: Incident with GitHub.com
GitHub Copilot · github.comImpact: criticalResolved2026-08-17 21:15 UTC
Public — what happened
Summary
On August 17, 2026, from 13:28–21:15 UTC (7h 47m), GitHub.com experienced elevated errors and latency across Issues, Pull Requests, APIs, Actions, and Copilot. At peak, web/API error rates were approximately 20%, while archive and raw-content downloads reached approximately 50%. SAML/OIDC authentication, SCIM, and Team Sync were also affected, as well as Actions workflows in GHEC with Data Residency that depend on public workflow step definitions hosted on GitHub.com. Most services recovered by 16:36 UTC as our Central US datacenter recovered; Actions was degraded until approximately 18:03 UTC; and Copilot Token Service fully recovered by 21:02. <br /><br />Some of the failing traffic was mo
Timeline
- Started — 2026-08-17 13:40 UTC
- Last update — 2026-08-17 21:15 UTC
- Resolved — 2026-08-17 21:15 UTC
With SquidGrid — where it starts on the route
Independent path health
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