Circleci
Last updated: 6/4/2026, 4:02:45 AM
Recently Resolved Incidents
Errors on Cloud Docker Pulls
Jun 2, 13:11 UTC
Resolved - This incident has been resolved.
Jun 2, 13:06 UTC
Monitoring - We identified the issue and have deployed a fix and are now monitoring.
Jun 2, 12:52 UTC
Investigating - We are noticing an increase in errors when pulling Docker images. We are investigating.
Mac jobs failing to start
Jun 1, 03:26 UTC
Resolved - All Mac jobs are running successfully.
Our infrastructure provider has confirmed that the DDoS attack has been mitigated and that services have been restored.
Thank you for your patience during this incident.
Jun 1, 02:05 UTC
Update - Mac jobs are running successfully, and we are continuing to monitor the performance of our Mac fleet.
Thank you for your patience.
Jun 1, 01:36 UTC
Monitoring - We are seeing Mac jobs starting successfully and improved network connectivity to the Mac fleet, however our infrastructure provider is continuing to experience a DDoS attack.
We will continue to monitor the recovery while bringing additional capacity to our platform.
Jun 1, 01:05 UTC
Update - We are continuing to investigate this issue.
Jun 1, 01:04 UTC
Investigating - Mac jobs are continuing to experience failures. Our infrastructure provider is continuing to report that 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.
Mac jobs failing to start
Jun 1, 00:45 UTC
Resolved - Mac jobs have now fully recovered.
Thank you for your patience during this incident.
Jun 1, 00:42 UTC
Update - We have processed the backlog of Mac jobs and job start times are recovering to normal parameters.
Jun 1, 00:24 UTC
Monitoring - We are seeing Mac jobs starting successfully and improved network connectivity to the Mac fleet. We will continue to monitor the recovery.
May 31, 22:38 UTC
Update - 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.
May 31, 21:24 UTC
Update - 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.
May 31, 20:05 UTC
Update - 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.
May 31, 19:09 UTC
Update - We are continuing to work on resolving the networking issue for Mac jobs.
May 31, 18:15 UTC
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.
Usage API data delayed for 5/28
May 29, 18:10 UTC
Resolved - The Usage API incident has been resolved.
May 29, 14:57 UTC
Update - We've identified a small number of duplicate records in the Usage API data. Data is available, but may be inaccurate. We continue to investigate.
May 29, 14:51 UTC
Investigating - We are currently investigating this issue.
Elevated 429 errors pulling from maven central
May 14, 19:38 UTC
Resolved - Customers running jobs that pulled dependencies from Maven Central experienced elevated 429 (rate limit) errors. We have worked with Sonatype to allow list CircleCI's dedicated IP ranges. Customers using our IP ranges feature should no longer see Maven Central rate limits affect their jobs while we continue work to fully address the issue for all customers.
Customers whose jobs failed during this window may rerun affected jobs. We thank you for your patience while our team worked on implementing a fix.
May 14, 18:08 UTC
Monitoring - We're monitoring to verify that rate limited jobs are recovering.
May 14, 16:49 UTC
Investigating - Jobs pulling dependencies from maven central are experiencing increased 429 errors due to maven central rate limits.
We are investigating the issue and working to identify mitigations for customer jobs.
GitHub incident with Pull Requests
May 6, 21:26 UTC
Resolved - This incident has been resolved.
May 6, 17:54 UTC
Update - We are continuing to monitor for any further issues.
May 6, 17:54 UTC
Monitoring - GitHub is reporting a major incident for degraded pull request availability. This does not impact running CircleCI builds for newly created pull requests or push events.
Some Pipelines are being lost
May 6, 20:13 UTC
Resolved - This incident is resolved. Thank you for your patience, and we apologize for any inconvenience.
May 6, 20:03 UTC
Monitoring - The rollback was successful. Pipelines are flowing normally again. Monitoring for a bit.
May 6, 19:43 UTC
Update - We are continuing to investigate this issue.
May 6, 19:42 UTC
Investigating - We are having an issue with some pipelines being lost. We are rolling back the affected service, and will share more information when we have it.
May 1, 14:02 UTC
Resolved - This issue has been resolved. All data is up to date through yesterday.
May 1, 10:04 UTC
Investigating - We are currently investigating
Jobs using Xcode 14.3.1 on m4pro.large are delayed.
May 1, 11:08 UTC
Resolved - This incident has been resolved.
May 1, 11:02 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
May 1, 10:58 UTC
Identified - The issue has been identified and a fix is being implemented.
May 1, 10:51 UTC
Investigating - We are investigating the cause.
Build failures Xcode 26.4.0
Apr 24, 18:36 UTC
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
Customers whose jobs failed may rerun affected jobs.
We thank you for your patience while our team worked on implementing a fix.
Apr 24, 18:01 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Apr 24, 17:25 UTC
Identified - There are build failures for Xcode 26.4.0; we have identified the issue and are currently implementing a fix.
Showing 10 of 21 resolved incidents
Scheduled Maintenance
Machine Cloud Maintenance
Jun 4, 01:00 UTC
Completed - The scheduled maintenance has been completed.
Jun 4, 00:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 1, 15:37 UTC
Scheduled - Machine Job Infrastructure will be undergoing scheduled maintenance on Thursday, June 4th from 12:30 AM to 1:00 AM UTC. While we do not anticipate disruption, customers utilizing Linux Machine or Remote Docker executors could experience job queuing during this time.
Machine Cloud Maintenance
Jun 1, 15:00 UTC
Completed - The scheduled maintenance has been completed.
Jun 1, 14:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 28, 20:05 UTC
Scheduled - Machine Job Infrastructure will be undergoing scheduled maintenance on Monday, June 1st from 2:00 PM to 3:00 PM UTC. While we do not anticipate disruption, customers utilizing Linux Machine or Remote Docker executors could experience job queuing during this time.
Maintenance — OIDC Token Minting
May 7, 01:00 UTC
Completed - The scheduled maintenance has been completed.
May 7, 00:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 6, 01:56 UTC
Scheduled - On May 7th between 00:00 UTC and 01:00 UTC, we will be performing scheduled maintenance that may briefly affect OIDC token minting. Customers with jobs that rely on OIDC tokens may experience token failures during a short period within this window.
Mac Cloud Maintenance - Tuesday, February 24th, 2:00 AM – 6:00 AM UTC
Feb 24, 06:00 UTC
Completed - The scheduled maintenance has been completed.
Feb 24, 02:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Feb 20, 20:38 UTC
Scheduled - Mac Cloud will be undergoing scheduled maintenance on Tuesday, February 24th from 2:00 AM to 6:00 AM UTC. During this window, m4pro.medium and m4pro.large resource classes may be affected. While we do not anticipate significant disruption, customers could experience job queuing, and any jobs running during the maintenance window may fail and be automatically retried.
We will post an update once maintenance is complete.