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Outage in Circle CI

Delays in starting jobs using the gen3 resource class

Resolved Minor
July 22, 2026 - Started 3 days ago - Lasted about 6 hours
Official incident page

Incident Report

Summary AI Generated

Between July 22–23, 2026 (approximately 19:24–01:50 UTC), CircleCI's gen3 preview Linux VM machine resource class experienced delays and failures in job startup, lasting around 6 hours. Affected workflows that could not be provisioned were cancelled, while gen1 and gen2 resource classes remained fully operational. CircleCI resolved the incident by removing the gen3 resource classes to address underlying stability issues, advising affected customers to switch to gen2 and rerun their cancelled workflows.

We are investigating delays in starting jobs using the gen3 resource class.
Components affected
Circle CI Machine Jobs

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Latest Updates ( sorted recent to last )
RESOLVED 3 days ago - at 07/23/2026 02:05AM

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.

INVESTIGATING 3 days ago - at 07/23/2026 12:31AM

We have identified the issue and are working with our provider to resolve the availability of gen 3 resources. Gen 1 and Gen 2 are both fully operational.

INVESTIGATING 3 days ago - at 07/22/2026 11:17PM

We are continuing to investigate elevated wait times affecting customers using gen3 machine executors. Affected jobs may take longer than usual to start. We will provide another update as soon as we have more information to share.

INVESTIGATING 3 days ago - at 07/22/2026 08:43PM

We are continuing to investigate elevated wait times affecting customers using gen3 machine executors. Affected jobs may take longer than usual to start. We will provide another update as soon as we have more information to share.

INVESTIGATING 3 days ago - at 07/22/2026 07:57PM

We are investigating delays in starting jobs using the gen3 resource class.

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