Outage report · Partial outage

CircleCI outage on Oct 9, 2026

Delay in data appearing in UI and API

SeverityPartial outage

StartedOct 9, 2026, 11:33UTC

ResolvedOct 10, 2026, 02:08UTC

Duration14h 36m

What happened

CircleCI reported a partial outage starting Oct 9, 2026, 11:33 UTC, affecting CircleCI API, CircleCI UI. It was marked resolved at Oct 10, 2026, 02:08 UTC.

The incident lasted 14h 36m from first report to resolution.
It was the longest significant outage CircleCI reported in the 12 months up to it.
CircleCI had reported 2 other partial or major outages in the 90 days before it.
5 other vendors we track reported a significant incident within 12 hours of it.

Latest 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 workflows failed. * From 20:48 to 22:10 UTC, we temporarily paused starting new workflows and jobs so our systems could recover. New pipelines were accepted and queued during this time. * From 22:10 to 23:47 UTC, queued workflows and jobs resumed and were successfully processed. Some of them had waited up

Read CircleCI's official incident report ↗