CircleCI outage, 9 October 2026
Delay in data appearing in UI and API
- Started
- Resolved
- 10 Oct 2026, 02:08 UTC (after 14 h 35 min)
- Impact
- Major
- Affected
- CircleCI API, CircleCI UI
Last update from CircleCI
## Summary Between 11:15 UTC and 23:47 UTC on October 9, CircleCI customers experienced hours-long delays and failures across pipelines, workflows and jobs, along with delays in the CircleCI UI, API and notifications. * From 11:15 to 13:00 UTC, pipelines were created but not processed, and outbound webhooks and Slack and email notifications were not sent. * From 13:00 to 14:40 UTC, workflows and jobs started with delays while we worked through the backlog. * From 15:15 to 20:48 UTC, workflows and jobs started with increasing delays, of up to about an hour, and the CircleCI UI and API fell behind by up to about 2 hours. During this time, some jobs failed to start and some in-progress workfl...
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