GitHub experienced six incidents in February 2026 causing degraded performance across its services. Key incidents included: a Dependabot cluster failover connecting to a read-only database (Feb 2), a major outage of GitHub Actions hosted runners and Codespaces caused by security policies mistakenly applied to backend storage accounts (Feb 2, ~6 hours), two related incidents on Feb 9 caused by a caching configuration change that triggered write amplification and connection exhaustion in the Git HTTPS proxy, a Codespaces provisioning failure in non-US regions due to an authorization claim change in a networking dependency (Feb 12), and a Git LFS archive download error caused by an incorrect network configuration deployment. GitHub has outlined mitigations and improvements for each incident, including better monitoring, alerting thresholds, cache write safeguards, and automated failover mechanisms.
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