GitHub experienced degraded performance affecting Actions and Pull Requests for approximately 1.5 hours on August 26–27, 2026. At peak impact, 20% of Actions workflow runs faced delayed starts of over 5 minutes, up to 4% of runs failed to trigger entirely, and pull request merges were blocked. Mitigations were applied and the incident was fully resolved, with a root cause analysis to follow.
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This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.
We've applied mitigations and are seeing recovery in Actions workflow runs and blocked pull request merges. We're continuing to monitor for sustained health of merge commit creates before resolving.
We are investigating elevated delays and timeouts affecting Actions workflow runs triggered by pull request events. 20% of actions runs have delayed starts of more than 5 minutes and up to 4% of runs failed to trigger. We are actively working on mitigation and will provide updates as we learn more.
We are investigating reports of degraded performance for Actions and Pull Requests
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