GitHub availability report: April 2026

In April 2026, GitHub experienced several incidents resulting in degraded performance across its services, with detailed reports published for major events on April 23 and April 27. The incidents varied in nature, including a complete outage of the code search service due to an aggressive automated change, and a failure in audit log connectivity caused by a credential rotation issue. GitHub also faced challenges with the Copilot coding agent service due to a bug in rate limiting logic, which was exacerbated by a surge in API traffic. Additionally, GitHub Pages encountered issues due to an automated DNS management error, while a serialization error impacted code scanning, code quality, and project boards on April 20. On April 22, an infrastructure change affected Copilot Chat and Cloud Agent databases. The April 23 incident was caused by DNS infrastructure degradation, impacting a range of services, while on April 27, GitHub search services suffered from load balancing saturation due to anonymous distributed scraping traffic. GitHub has taken steps to prevent recurrence, such as improving monitoring, implementing safer deployment practices, and enhancing infrastructure resilience to mitigate future impacts.

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