In February, we experienced one incident resulting in significant impact and degraded state of availability for GitHub.com, issues, pull requests, GitHub Actions, and GitHub Codespaces services.
February 2 19:05 UTC (lasting 13 minutes)
As mentioned in our January report, our service monitors detected a high rate of errors affecting a number of GitHub services.
As a safety protocol, our default behavior is to error rather than rendering script tags without integrities, if a hash cannot be found in the integrities file. In this case, that means that github.com started serving 500 error pages to all web users. As soon as the errors were detected, we rolled back to the previous deployment and resolved the incident. Throughout the incident, only browser-based access to GitHub.com was impacted, with API and Git access remaining healthy.
Every month, we share an update on GitHub’s availability, including a description of any incidents that may have occurred and an update on how we are evolving our engineering systems and practices in response. Whether in these reports or via our engineering blog, we look forward to keeping you updated on the progress and investments we’re making to ensure the reliability of our services.
You can also follow our status page for the latest on our availability.