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GitHub Actions Outage: How GitHub Restored Service After 9 Hours

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GitHub Actions Outage: How GitHub Restored Service After 9 Hours

On August 6, 2026, at 15:22 UTC, GitHub reported degraded performance in Actions. Twenty minutes later, the platform was failing: workflow runs not starting, REST API calls returning errors, developers slammed with unexpected rate limiting. The incident lasted roughly nine hours and cascaded into Copilot's code review, GitHub Pages, and webhook delivery. Root cause, per GitHub: invalid job assignments in the scheduling layer.

Most teams' CI/CD strategy was built around an assumption this outage quietly broke.


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