CircleCI
RAM Disk is currently not usable in Docker jobs
Monitoring - At present customers running Docker containers cannot use /mnt/ramdisk. Customers will need to modify their configuration to use the filesystem instead.

This has occurred in order to update the Docker Infrastructure that supports our `working_directory: /mnt/ramdisk` feature. This is a necessary step in order to address CVE-2025-31133, CVE-2025-52565, and CVE-2025-52881.

This bug affects any Docker jobs utilizing `working_directory: /mnt/ramdisk`. Jobs will fail on checkout and workspace attachments.

The immediate workaround will be to remove any usage of `working_directory: /mnt/ramdisk` from your job which will require an update of `.circleci/config.yml`

Once this maintenance is complete, customers will be unable to utilize `working_directory: /mnt/ramdisk`until further notice.
Nov 07, 2025 - 10:40 UTC
Deprecation of EoL Xcode Versions
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 07, 2025 - 00:00 UTC
Scheduled - Following our updated Xcode image retention policy. We will be deprecating Xcode versions that are no longer supported. We will additionally be performing 24-hour brownouts from 00:00:01 to 23:59:59 UTC during which these images will be unavailable.

13.4.1
15.1.0
15.2.0
15.3.0
16.00
16.10

The brownout and deprecation schedule is available below.

https://circleci.com/changelog/deprecation-of-eol-xcode-versions/
Nov 7, 2025 00:00 - Nov 8, 2025 00:00 UTC
Uptime over the past 90 days. View historical uptime.
Docker Jobs ? Operational
90 days ago
99.8 % uptime
Today
Machine Jobs ? Operational
90 days ago
99.73 % uptime
Today
macOS Jobs ? Under Maintenance
90 days ago
99.78 % uptime
Today
Windows Jobs ? Operational
90 days ago
99.8 % uptime
Today
Pipelines & Workflows Operational
90 days ago
99.73 % uptime
Today
CircleCI API ? Operational
90 days ago
99.93 % uptime
Today
CircleCI UI Operational
90 days ago
100.0 % uptime
Today
Artifacts ? Operational
90 days ago
99.8 % uptime
Today
Runner ? Operational
90 days ago
100.0 % uptime
Today
CircleCI Webhooks ? Operational
90 days ago
100.0 % uptime
Today
CircleCI Insights ? Operational
90 days ago
100.0 % uptime
Today
CircleCI Releases ? Operational
90 days ago
100.0 % uptime
Today
Notifications & Status Updates ? Operational
Billing & Account ? Operational
CircleCI Dependencies ? Operational
90 days ago
100.0 % uptime
Today
AWS ? Operational
Google Cloud Platform Google Cloud DNS Operational
Google Cloud Platform Google Cloud Networking ? Operational
Google Cloud Platform Google Cloud Storage Operational
Google Cloud Platform Google Compute Engine Operational
mailgun API Operational
mailgun Outbound Delivery Operational
mailgun SMTP Operational
OpenAI ? Operational
90 days ago
100.0 % uptime
Today
Upstream Services ? Operational
Atlassian Bitbucket API Operational
Atlassian Bitbucket Source downloads Operational
Atlassian Bitbucket SSH Operational
Atlassian Bitbucket Webhooks Operational
Docker Hub ? Operational
GitHub Git Operations Operational
GitHub Pull Requests Operational
GitHub API Requests Operational
GitHub Packages ? Operational
GitHub Webhooks Operational
GitLab Operational
Docker Registry Operational
Docker Authentication Operational
Anthropic api.anthropic.com Operational
packagecloud.io ? Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Nov 7, 2025
Emergency Maintenance for Docker Jobs - Breaking Change
Completed - The scheduled maintenance has been completed.
Nov 7, 06:15 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 7, 00:15 UTC
Scheduled - We will be performing an emergency maintenance in order to update the Docker Infrastructure that supports our `working_directory: /mnt/ramdisk` feature. This is a necessary step in order for critical work in the near term.

This will be a breaking change for any Docker jobs utilizing `working_directory: /mnt/ramdisk`. Jobs will fail on checkout and workspace attachments.

The immediate workaround will be to remove any usage of `working_directory: /mnt/ramdisk` from your job which will require an update of `.circleci/config.yml`

Once this maintenance is complete, customers will be unable to utilize `working_directory: /mnt/ramdisk`until further notice.
Nov 7, 00:02 UTC
Nov 6, 2025
Docker jobs degradation
Resolved - Some customers from 15:26:06 UTC to 18:44:16 UTC would have experienced intermittent issues with running docker jobs. We have since rolled back this change.
Nov 6, 19:26 UTC
Deprecation of EoL Xcode Versions
Completed - The scheduled maintenance has been completed.
Nov 6, 00:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 5, 00:00 UTC
Scheduled - Following our updated Xcode image retention policy. We will be deprecating Xcode versions that are no longer supported. We will additionally be performing 24-hour brownouts from 00:00:01 to 23:59:59 UTC during which these images will be unavailable.

13.4.1
15.1.0
15.2.0
15.3.0
16.00
16.10

The brownout and deprecation schedule is available below.

https://circleci.com/changelog/deprecation-of-eol-xcode-versions/
Sep 30, 22:20 UTC
Nov 5, 2025
Network Delays Affecting MacOS Jobs
Resolved - The macOS resources performance issue has been fully resolved.

All M1 and M4 Pro medium/large resources are operating normally with standard wait times and network performance. We have monitored the infrastructure for stability and confirmed full recovery of all affected services.

We apologize for any inconvenience this may have caused. Thank you for your patience during this incident.
Nov 5, 18:59 UTC
Monitoring - We are observing recovery of the macOS resources performance issue.

Wait times for M1 medium/large and M4 Pro medium/large resources have returned to normal levels
Network performance within running jobs appears to be recovering

We are continuing to monitor the situation closely to ensure stability and will provide another update within 30 minutes as we confirm full resolution of the incident.
Nov 5, 18:41 UTC
Update - We are continuing to investigate degraded network performance affecting macOS resources in our infrastructure.

What's happening:
We have identified reduced network bandwidth that is causing performance degradation for specific macOS resource classes.

What's impacted:
M1 medium and large resources: Experiencing average wait times of up to 20 minutes before job start
M4 Pro medium and large resources: Experiencing average wait times of approximately 5 minutes before job start
Running jobs on affected resources: Network-dependent operations within jobs (cache restoration, pulling datasets, downloading dependencies) are also experiencing slowdowns.
All other macOS resource classes are operating normally

Next update:
We are actively working to resolve this issue and will provide an update within 30 minutes or sooner if the situation changes.
Nov 5, 18:06 UTC
Update - We are continuing to investigate this and are working with our datacenter provider to mitigate this issue.
Nov 5, 17:30 UTC
Identified - We are experiencing delays starting jobs for M1 and M4 medium and large resource classes.
Running jobs on these resource classes will also experience delays due to degraded network performance.
Nov 5, 16:57 UTC
Unable to add Github Authorized User Keys to Projects
Resolved - We have identified a workaround for the issue preventing users from adding User Keys via the "Authorize with GitHub" option.

While the "Authorize with GitHub" button is currently experiencing issues, users can successfully add SSH keys to their projects using our fully supported and documented manual process : https://circleci.com/docs/guides/integration/add-ssh-key/#steps-to-add-additional-ssh-keys

This workaround provides full functionality for adding SSH keys to your projects, effectively resolving the immediate impact. Our engineering team is actively monitoring this issue and will implement a permanent fix to restore the GitHub authorization flow.

Post resolution Update - 17:30 UTC
The GitHub authorization functionality for adding User Keys has been fully restored as of 9:21 UTC. The "Authorize with GitHub" button is now working as expected in project settings.

The manual workaround previously provided is no longer necessary, though it remains a valid alternative method for adding SSH keys.

Thank you for your patience while we resolved this issue.
Nov 5, 00:16 UTC
Investigating - We are currently investigating an issue preventing users from adding User Keys to a project when clicking on "Authorize with Github". Adding any other keys such as deploy keys or existing authorized user keys continues to function normally.
Nov 4, 23:32 UTC
Nov 4, 2025
Nov 3, 2025

No incidents reported.

Nov 2, 2025

No incidents reported.

Nov 1, 2025

No incidents reported.

Oct 31, 2025

No incidents reported.

Oct 30, 2025
Deprecation of EoL Xcode Versions
Completed - The scheduled maintenance has been completed.
Oct 30, 00:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 29, 00:00 UTC
Scheduled - Following our updated Xcode image retention policy. We will be deprecating Xcode versions that are no longer supported. We will additionally be performing 24-hour brownouts from 00:00:01 to 23:59:59 UTC during which these images will be unavailable.

13.4.1
15.1.0
15.2.0
15.3.0
16.00
16.10

The brownout and deprecation schedule is available below.

https://circleci.com/changelog/deprecation-of-eol-xcode-versions/
Sep 30, 22:24 UTC
Oct 29, 2025
Oct 28, 2025

No incidents reported.

Oct 27, 2025
No Linux jobs are running
Resolved - This incident has been resolved. Thank you for your patience.
Oct 27, 15:24 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Oct 27, 15:17 UTC
Identified - We have identified the issue, it has been mitigated and we are waiting for jobs to catch. No work was lost, just slight delays happened.
Oct 27, 15:10 UTC
Investigating - There is an issue with Linux jobs not running and we are investigating.
Oct 27, 15:04 UTC
Oct 26, 2025

No incidents reported.

Oct 25, 2025

No incidents reported.

Oct 24, 2025

No incidents reported.

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