# GitHub Copilot outage on 2026-11-09

Source: https://modelbank.ai/outages/github-copilot-2026-11-09 · ModelBank

- Window: 2026-11-09 05:59 UTC – 2026-11-10 00:05 UTC (1087 min)
- Type: outage
- Now: operational (https://modelbank.ai/status/github-copilot)
- 30-day measured availability: 99.90%

## Official incidents

- 2026-11-09 05:59 UTC Increased timeouts due to surge in anonymous users (minor) · resolved 2026-11-09 09:09 UTC
- 2026-11-09 10:00 UTC Incident with Webhooks and Actions (major) · resolved 2026-11-09 11:50 UTC
- 2026-11-09 18:12 UTC Incident with Actions and Checks API (critical) · resolved 2026-11-09 18:59 UTC
- 2026-11-09 23:16 UTC Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot (major) · resolved 2026-11-10 00:05 UTC

## Official updates

- 2026-11-09 05:59 UTC [investigating] We are investigating reports of impacted performance for some GitHub services.
- 2026-11-09 06:30 UTC [investigating] We are debugging a spike in anonymous traffic. Some users who are not logged in may see errors on the site. CI jobs and release downloads may fail with a 504 Gateway Timeout status if they make anonymous calls.
- 2026-11-09 06:51 UTC [monitoring] The degradation has been mitigated. We are monitoring to ensure stability.
- 2026-11-09 07:03 UTC [monitoring] The problem with anonymous traffic receiving 504 status codes has been mitigated. We are continuing to observe for an abundance of caution.
- 2026-11-09 07:43 UTC [investigating] We have observed a repeated increase in 504 errors for anonymous and unauthenticated traffic, including users who are not logged in and release downloads. We are continuing to investigate and  apply mitigations.
- 2026-11-09 08:16 UTC [investigating] We are continuing to observe high rates of 504 errors for anonymous requests. We are continuing to work on mitigation. Logged-in users and authenticated requests are unaffected.
- 2026-11-09 08:47 UTC [investigating] Error rates have declined again, and we’re preparing targeted traffic controls while monitoring for a recurrence. Logged-in users and authenticated requests have not been affected.
- 2026-11-09 09:09 UTC [monitoring] We are resolving this incident as error rates have remained low and we have prepared additional protections.
- 2026-11-09 09:09 UTC [resolved] This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.
- 2026-11-09 10:00 UTC [investigating] We are investigating reports of degraded performance for Actions and Webhooks
- 2026-11-09 10:28 UTC [investigating] We're investigating delays in Actions runs start times and webhook deliveries.
- 2026-11-09 10:47 UTC [investigating] We've applied a mitigation and are monitoring for recovery.

## ModelBank measurements

- 2026-11-09 23:16 UTC – 2026-11-09 23:48 UTC: outage