Circle CI Outage History

This incident has been resolved.

This incident has been resolved.

This incident has been resolved.

This incident has been resolved.

Wait times for macOS jobs are back to normal.

This incident has been resolved.

We've seen no further impact to queue times and everything has returned to normal. We appreciate your patience while we worked to resolve and monitor this issue.

This incident has been resolved.

Between 19:49 UTC and 21:07 UTC on August 25, 2026, customers attempting to log in to CircleCI using GitHub were unable to sign in, and received an error from GitHub stating the callback URL was invalid. Customers who were already logged in were not affected. The issue has been resolved and GitHub login is functioning normally. We thank you for your patience while our team worked on implementing a fix.

Insights data is good once more. Thank you for your patience.

GitHub's APIs appear to be operating normally.

Following planned maintenance that ended at 13:00 UTC on August 15, some impact to job processing continued for approximately 30 minutes beyond the window we announced. Some customers continued to see delays in jobs starting, along with a small number of jobs failing with infrastructure errors, until approximately 13:30 UTC. This has been resolved and job processing has returned to normal. Customers whose jobs failed during this window may rerun affected jobs. We thank you for your patience while our team worked on implementing a fix and apologize for any inconvenience the extended impact may have caused.

The issue impacting customers who use GitHub as their VCS while GitHub was undergoing a service degradation (https://www.githubstatus.com/incidents/76t89hbfb09h) has now been resolved. GitHub has resolved the underlying issue and the affected functionality has returned to normal. We thank you for your patience.

Between 13:50 UTC and approximately 17:30 UTC on August 11, 2026, some customers experienced delays of up to an hour in pipeline status updates and in notification delivery. Between 16:40 UTC and 17:00 UTC within that same window, a small number of customers also saw newly created pipelines fail to process, appearing in an errored state in the UI and API. The issue has been resolved and all affected functionality has returned to normal. Customers whose pipelines errored during that window can retrigger them. We thank you for your patience while our team worked on implementing a fix.

The Usage API issue has been resolved. Data has been loaded for yesterday, 8/5/2026. We appreciate your patience.

The upstream issue has been resolved, and the insights data from the last 24 hours has caught up. Thank you for your patience.

Queue times for Android and Windows jobs have reduced significantly over the last hour. You may still notice brief, isolated queuing at times, but this is no longer at incident-level impact. This was related to capacity constraints with a third-party infrastructure provider. We thank you for your patience while we monitored the situation. If you have any issues, please reach out to our Support team.

Between 19:24 UTC on 22 July and 01:50 UTC on 23 July, customers using the gen3 preview machine (Linux VM) resource classes experienced delays and, in some cases, jobs failing to start. We have removed the gen3 resource classes while we address stability issues affecting them. Unfortunately, workflows that we were unable to provision compute capacity for during this period were cancelled. Affected customers should change their resource class from gen3 to gen2 and rerun those workflows. We thank you for your patience while our team worked to resolve this.

Between 03:18 UTC and 06:04 UTC on July 22, 2026, a subset of customers were unable to access app.circleci.com. The issue has been resolved and access has returned to normal. We thank you for your patience while our team worked on implementing a fix.

An incident affecting GitHub's API caused CircleCI customers to experience errors loading the web app and signing in, along with pipelines and scheduled workflows failing to start or running late. GitHub has resolved the underlying incident (https://www.githubstatus.com/) and all affected functionality has returned to normal. Customers whose jobs or pipelines failed may rerun them. Scheduled pipelines and workflows that were missed during the incident will not run automatically and will need to be re-triggered. We thank you for your patience.

On July 13 between 15:30 UTC and 22:40 UTC, we experienced delays starting jobs on Docker (Gen 2) resource classes due to capacity constraints from our cloud provider. The same issue recurred on July 14 between 15:45 UTC and 22:50 UTC. Delays reached up to 25 minutes on July 13 and up to 24 minutes on July 14. The medium+ and 2 X-large+ resource classes saw the longest waits. Earlier updates in this incident reported figures based on average wait times, which didn't reflect the maximum impact some customers may have experienced. Wait times have now returned to normal. We are continuing to work with our cloud provider to add capacity ahead of the next peak period. Thank you for your patience.