- Level
- confirmed
- Worst impact
- Degraded
- Components
- macOS Jobs
- Down Index
- 23of 100
What to do
Check whether you use CircleCI macOS Jobs. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 6h 29m it lasted.
Anything that failed between 2026-05-31 18:15 UTC and 2026-06-01 00:45 UTC may need a replay.Subscribe to CircleCI's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=circleci works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from CircleCI 8
- identified
We have identified a network outage that is preventing Mac jobs from starting. This include m4pro.medium and m4pro.large resource types. We are working with our infrastructure provider to restore service. We will update this incident as we work to resolve the issue.
provider
- identified
We are continuing to work on resolving the networking issue for Mac jobs.
provider
- identified
We are still seeing failures with Mac jobs starting due to high network latency and packet loss. We will continue to update as we have more information on a resolution.
provider
- identified
We are continuing to investigate failures with Mac jobs starting due to high network latency and packet loss. Our engineers remain engaged with our infrastructure provider to restore service. We will provide another update within the hour, or sooner if circumstances change. We thank you for your patience while our engineers work to resolve this.
provider
- identified
Mac jobs are continuing to experience failures. Our infrastructure provider is reporting they are experiencing a DDoS attack causing high network latency and packet loss for our Mac fleet. We are working to bring up additional capacity to restore service. We will continue to update as more information is available.
provider
- monitoring
We are seeing Mac jobs starting successfully and improved network connectivity to the Mac fleet. We will continue to monitor the recovery.
provider
- monitoring
We have processed the backlog of Mac jobs and job start times are recovering to normal parameters.
provider
- resolved
Mac jobs have now fully recovered. Thank you for your patience during this incident.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-5fb9b6cf04
Is CircleCI still down?
No, this incident was resolved 2026-06-01 00:45 UTC. For CircleCI's live state, see https://down.guide/circleci.
How long did it last?
6h 29m, from 2026-05-31 18:15 UTC to 2026-06-01 00:45 UTC, by the times CircleCI posted.
What was affected?
CircleCI named macOS Jobs.
What caused it?
CircleCI hasn't published a root cause. If it does, it shows here.
Where does this come from?
CircleCI's official status page, https://status.circleci.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.