• Share: In January, we experienced two incidents that resulted in degraded performance across GitHub services. • January 13 09:38 UTC (lasting 46 minutes) On January 13, 2026, from 09:25 to 10:11 UTC, GitHub Copilot experienced a service outage with error rates averaging 18% and peaking at 100%. • This impacted chat features across Copilot Chat, VS Code, JetBrains IDEs, and other dependent products. • The incident was triggered by a configuration error introduced during a model update and was initially mitigated by rolling back the change. • A secondary recovery phase extended until 10:46 UTC due to upstream provider Open AI experiencing degraded availability for GPT‑4.1 model. • We have completed a detailed root‑cause review and are implementing stronger monitors, improved test environments, and tighter configuration safeguards to prevent recurrence and accelerate detection and mitigation of future issues.
Article Summaries:
- GitHub Availability Report - January 2026
In January, GitHub reported two incidents that degraded service performance. On Jan 13, a configuration error during a Copilot model update caused an outage lasting 46 minutes, with error rates up to 100 % for Copilot chat across VS Code, JetBrains IDEs, and related products. A secondary recovery phase extended to 10:46 UTC due to OpenAI’s GPT‑4.1 availability issues. On Jan 15, an infrastructure upgrade to data stores triggered 1 hour 40 minutes of increased latency and timeouts affecting issues, pull requests, notifications, and API requests, peaking at 10 % failure for unauthenticated users. GitHub rolled back both changes, added stronger monitoring, and is tightening validation processes to prevent recurrence.
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