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GitHub Copilot: Disruption with some GitHub services
Timeline of updates
- resolved
On December 8, 2025, between 21:15 and 22:24 UTC, Copilot code completions experienced a significant service degradation. During this period, up to 65% of code completion requests failed. The root cause was an internal feature flag that caused the primary model supporting Copilot code completions to appear unavailable to the backend service. The issue was resolved once the flag was disabled. To prevent recurrence, we expanded test coverage for Copilot code completion models and are strengthening our detection mechanisms to better identify and respond to traffic anomalies.
From GitHub Copilot’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
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This incident predates live tracking (October 17, 2026). It came from the vendor’s own published history, which is not covered by checkpoints.
Impact, status and times are the vendor’s own, as last archived. View on www.githubstatus.com (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by GitHub Copilot, started 2025-12-08 21:28 UTC, resolved after 1.1 h, 1 update(s).
- Title
- Disruption with some GitHub services
- Vendor
- GitHub Copilot
- Date
- URL
- https://rewindex.com/company/github-copilot/incidents/n4fpndtvbmwb
GitHub Copilot profileRecent GitHub Copilot incidentsAll outages on December 8, 2025GitHub Copilot in December 2025MarkdownJSON