CircleCI: Build failures Xcode 26.4.0
Timeline of updates
- resolved
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.
From CircleCI’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
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This incident predates live tracking (October 17, 2026). It came from the vendor’s own published history, which is not covered by checkpoints.
Impact, status and times are the vendor’s own, as last archived. View on status.circleci.com (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by CircleCI, started 2026-04-24 17:25 UTC, resolved after 1.2 h, 1 update(s).
- Title
- Build failures Xcode 26.4.0
- Vendor
- CircleCI
- Date
- URL
- https://rewindex.com/company/circleci/incidents/90354ss2tb8t
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