Outage in CircleCI
Build failures Xcode 26.4.0
Resolved MinorIncident Report
There are build failures for Xcode 26.4.0; we have identified the issue and are currently implementing a fix.
Components affected
CircleCI macOS JobsTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
10 days ago - at 04/24/2026 06:36PM
Customers running macOS jobs on m4pro.medium and m4pro.large with the xcode:26.4.0 image experienced job rejections with the error: "Job was rejected because resource class , image xcode:26.4.0 is not a valid resource class". The issue has been resolved and affected jobs should now run normally.
Customers whose jobs failed may rerun affected jobs.
We thank you for your patience while our team worked on implementing a fix.
MONITORING
10 days ago - at 04/24/2026 06:01PM
A fix has been implemented and we are monitoring the results.
IDENTIFIED
10 days ago - at 04/24/2026 05:25PM
There are build failures for Xcode 26.4.0; we have identified the issue and are currently implementing a fix.
Latest CircleCI outages
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Usage API data is delayed for data from yesterday, 4/30. All prior data is available. We are investigating. - 4 days ago
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Delays in Workflow and Job data in the Usage API - 27 days ago
Degradation in CircleCI UI elements - 28 days ago
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