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CircleCI · Developer toolsApr 24, 2026, 17:25 UTC 6 months ago

Build failures Xcode 26.4.0

MinorNot disclosedUpdated 47d ago
Apr 24, 17:25 UTCApr 24, 18:36 UTC
Duration
1h 11m
Impact
Minor
Root cause
Not disclosed
CircleCI, 90 days
24 incidents
Affected
macOS Jobs
Status page

Final update

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.

Timeline

  1. Resolved · Apr 24, 18:36 UTC
    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.
  2. Monitoring · Apr 24, 18:01 UTC
    A fix has been implemented and we are monitoring the results.
  3. Identified · Apr 24, 17:25 UTC
    There are build failures for Xcode 26.4.0; we have identified the issue and are currently implementing a fix.

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