CircleCI Outage History

102 incidents recorded over the last 365 days, 92 of them resolved. Durations are measured from when PulsAPI first saw the problem to when it cleared, which is usually longer than the vendor's own figure.

Live CircleCI status88.82% uptime history

Every Recorded CircleCI Incident

CircleCI incidents, newest first, with date, duration and status.
DateIncidentDurationStatus
Aug 17, 2026Insight data is currently delayedInsights data is good once more. Thank you for your patience.30 minResolved
Aug 17, 2026GitHub Incidents impacting CircleCI functionalityGitHub's APIs appear to be operating normally.5h 1mResolved
Aug 15, 2026Delays starting jobs following planned maintenanceFollowing planned maintenance that ended at 13:00 UTC on August 15, some impact to job processing continued for approximately 30 minutes beyond the window we announced. Some customers continued to see delays in jobs…3h 1mResolved
Aug 15, 2026Infrastructure MaintenanceThe scheduled maintenance has been completed.1h 0mScheduled
Aug 14, 2026macOS Executor MaintenanceThe scheduled maintenance has been completed.4h 0mScheduled
Aug 12, 2026GitHub service degradation may impact customers using GitHubThe issue impacting customers who use GitHub as their VCS while GitHub was undergoing a service degradation (https://www.githubstatus.com/incidents/76t89hbfb09h) has now been resolved. GitHub has resolved the…9 minResolved
Aug 11, 2026Delayed pipeline updates and pipeline processing failuresBetween 13:50 UTC and approximately 17:30 UTC on August 11, 2026, some customers experienced delays of up to an hour in pipeline status updates and in notification delivery. Between 16:40 UTC and 17:00 UTC within that…17 minResolved
Aug 6, 2026Scheduled Maintenance - Support PortalOur new support portal is up and operational, please reach out with any issues or questions via the messenger on support.circleci.com or via email at support@circleci.com. Thank you for your patience throughout this…1h 0mScheduled
Aug 6, 2026Usage API data delayed for 8/5The Usage API issue has been resolved. Data has been loaded for yesterday, 8/5/2026. We appreciate your patience.6h 48mResolved
Aug 5, 2026Insights service data is laggingThe upstream issue has been resolved, and the insights data from the last 24 hours has caught up. Thank you for your patience.4h 2mResolved
Aug 4, 2026Increased Job Queue Times: Windows, Android, and GPUQueue times for Android and Windows jobs have reduced significantly over the last hour. You may still notice brief, isolated queuing at times, but this is no longer at incident-level impact. This was related to capacity…4h 12mResolved
Jul 24, 2026GitHub service degradation may impact customers using GitHubThe issue impacting customers who use GitHub as their VCS while GitHub was undergoing a service degradation (https://www.githubstatus.com/incidents/yjysg0xrl67m) has now been resolved. GitHub has resolved the…1h 5mResolved
Jul 22, 2026Delays in starting jobs using the gen3 resource classBetween 19:24 UTC on 22 July and 01:50 UTC on 23 July, customers using the gen3 preview machine (Linux VM) resource classes experienced delays and, in some cases, jobs failing to start. We have removed the gen3 resource…6h 8mResolved
Jul 22, 2026Errors loading app.circleci.comBetween 03:18 UTC and 06:04 UTC on July 22, 2026, a subset of customers were unable to access app.circleci.com. The issue has been resolved and access has returned to normal. We thank you for your patience while our…13 minResolved
Jul 20, 2026Errors with GitHub APIs delaying workflows## Summary On July 20, 2026 from 00:22 to 01:45 UTC, CircleCI customers using our GitHub integrations experienced failures running pipelines and experienced workflows getting stuck. During this incident, some pipelines…1h 9mResolved
Jul 16, 2026Errors accessing CircleCI and delays starting pipelines and scheduled workflowsAn incident affecting GitHub's API caused CircleCI customers to experience errors loading the web app and signing in, along with pipelines and scheduled workflows failing to start or running late. GitHub has resolved…1h 22mResolved
Jul 14, 2026Delays starting jobs on Docker (Gen 2) resource classesOn July 13 between 15:30 UTC and 22:40 UTC, we experienced delays starting jobs on Docker (Gen 2) resource classes due to capacity constraints from our cloud provider. The same issue recurred on July 14 between 15:45…1h 38mResolved
Jul 14, 2026Login issues for some Bitbucket users## Summary From 01:33 UTC to 05:18 UTC on July 14, 2026, customers with a Bitbucket-linked identity were unable to log in to CircleCI, and some customers experienced workflows that failed to start or update, due to a…2h 25mResolved
Jul 13, 2026Issues with network routing for Mac jobs## Summary From 18:00 UTC on July 13, 2026 to 23:18 UTC on July 14, 2026, some customers running jobs on CircleCI's macOS fleet experienced jobs that hung or failed to progress during GitHub fetch steps. For these…25h 26mResolved
Jul 13, 2026Issues with network routing for Mac jobsWe've confirmed the fix with our infrastructure provider and successful tests on our end. If customers continue to see any failed runs, please run again for a successful connection and reach out to Support if any…44 minResolved
Jul 9, 2026Emergency Maintenance: Security Updates for Docker Jobs.We have completed the kernel upgrades across all of the infrastructure used to run Docker jobs. Our monitoring shows Docker job execution is working as normal. During the maintenance, a small number of running jobs…8h 0mScheduled
Jul 2, 2026Outage impacting web experience and pipelines starting## Summary On July 2, 2026, from 15:12 UTC to 16:44 UTC, some CircleCI customers experienced failures starting pipelines and difficulty accessing the CircleCI UI, including an inability to log in. Customers triggering…1h 18mResolved
Jun 29, 2026Some customers are unable to access their organizationsThis incident has been resolved.6h 34mResolved
Jun 26, 2026Xcode 26.6 Demand + QueueingWe observed a surge in demand for Xcode 26.6 and have since mitigated the incident by increasing the available capacity for that Xcode version. Customers may have seen jobs queueing for ~10-15 mins.0 minResolved
Jun 25, 2026Investigating — Usage API Not AvailableThis incident has been resolved.19 minResolved
Jun 24, 2026Issues with network routing for Mac jobsWe are concluding this incident based on a confirmed fix with our infrastructure provider and successful tests. For any customers seeing failed runs, please run again for a successful connection.3h 52mResolved
Jun 23, 2026Delays starting Docker jobs## Summary On Tuesday, June 23, 2026, our engineering team identified that a single Docker job cluster was operating below expected performance levels. Our infrastructure is organized into routing groups, each…1h 23mResolved
Jun 13, 2026Scheduled Maintenance — Bitbucket IntegrationThe scheduled maintenance has been completed.2h 0mScheduled
Jun 11, 2026Elevated API Error Rates for Bitbucket UsersWhat's happening We are investigating an issue we believe is related to an ongoing incident with Atlassian Bitbucket's authentication service. We are actively monitoring Bitbucket's status. What's impacted Customers…1270h 19mResolved
Jun 11, 2026Issue authenticating only Bitbucket usersCustomers using Bitbucket as their VCS provider or as their login provider experienced errors when interacting with Bitbucket repositories and authenticating to CircleCI. This was caused by an incident with Atlassian…2h 46mResolved
Jun 10, 2026Issues publishing orbsThis incident has been resolved.28 minResolved
Jun 10, 2026Incident with GitHub APIsThis incident has been resolved.10 minResolved
Jun 9, 2026Increased 500 Errors on Pipeline and Workflow API Endpoints and UIBetween 13:29 UTC and 18:20 UTC on June 9, 2026, some customers experienced 500 errors when making requests to the pipeline values and workflow API endpoints, as well as errors in the UI. Jobs running were not impacted…58 minResolved
Jun 7, 2026macOS jobs failing to startThis issue has been resolved and macOS jobs across all resource classes are starting normally again. Customers whose jobs failed to start during this window may rerun them. We thank you for your patience while our team…24 minResolved
Jun 4, 2026Machine Cloud MaintenanceThe scheduled maintenance has been completed.30 minScheduled
Jun 2, 2026Errors on Cloud Docker PullsThis incident has been resolved.19 minResolved
Jun 1, 2026Machine Cloud MaintenanceThe scheduled maintenance has been completed.1h 0mScheduled
Jun 1, 2026Mac jobs failing to startAll 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.2h 21mResolved
May 31, 2026Mac jobs failing to startMac jobs have now fully recovered. Thank you for your patience during this incident.6h 29mResolved
May 29, 2026Usage API data delayed for 5/28The Usage API incident has been resolved.3h 18mResolved
May 14, 2026Elevated 429 errors pulling from maven centralCustomers 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…2h 49mResolved
May 7, 2026Maintenance — OIDC Token MintingThe scheduled maintenance has been completed.1h 0mScheduled
May 6, 2026Maintenance — OIDC Token MintingOn May 6th between 21:00 UTC and 22:00 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…1h 0mScheduled
May 6, 2026Some Pipelines are being lostThis incident is resolved. Thank you for your patience, and we apologize for any inconvenience.30 minResolved
May 6, 2026GitHub incident with Pull RequestsThis incident has been resolved.3h 31mResolved
May 1, 2026Jobs using Xcode 14.3.1 on m4pro.large are delayed.This incident has been resolved.16 minResolved
May 1, 2026Usage API data is delayed for data from yesterday, 4/30. All prior data is available. We are investigating.This issue has been resolved. All data is up to date through yesterday.3h 57mResolved
Apr 24, 2026Build failures Xcode 26.4.0Customers 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 <class name>, image xcode:26.4.0 is not a…1h 11mResolved
Apr 18, 2026Usage API data delayed this morningThe Usage API issue has been resolved. All data is now current. Appreciate your patience.2h 57mResolved
Apr 8, 2026Delays in Workflow and Job data in the Usage APIThe Usage API incident is resolved on an ongoing basis. There was a 4-hour period yesterday 4/7 for which we did not capture RAM and CPU utilization in our logs. We will not be backfilling the data for that period…7h 13mResolved
Apr 6, 2026Degradation in CircleCI UI elements**What happened** All modals and dialogs across the CircleCI application became invisible. They were being rendered correctly in the background, but were not visible to users. This affected approval jobs, SSH key…39 minResolved
Apr 2, 2026Usage API data for 4/1 is incomplete with multiple columns showing null values. Data prior to 4/1 is unaffected. We are investigating.The Usage API issue affecting 4/1 data has been resolved. Updated data will be available on 4/3. Thank you for your patience.6h 58mResolved
Apr 1, 2026Some pipelines not triggering due to GitHub API failuresIt appears that GitHub's `GET /repos/{owner}/{repo}/commits` API is now stable and responsive.28 minResolved
Mar 18, 2026Pipelines — Workflow Creation Errors and Missing GitHub Status UpdatesOn March 18, 2026, customers using workflows configured with serial groups or terminal job dependencies experienced two brief periods of disruption due to a code change. Between approximately 12:08 and 12:35 UTC…-75 minResolved
Mar 16, 2026Insights API and Dashboard displaying stale data for reporting windows greater than 24 hoursOur engineering team has identified the root cause and has fixes prepared. Due to the nature of the data refresh process, the fix will require a deployment followed by a full refresh cycle before data is fully up to…50 minResolved
Mar 11, 2026Unable to view orb list on Organization Settings pageThe issue affecting the orb list on the Organization Settings page has been resolved. Our engineers have deployed a fix and users should now be able to view their orb list as expected.  Orb usage in pipelines and builds…25 minResolved
Mar 2, 2026docker not working in cimg:*Looks like everything is good. Thank you for your patience.21 minResolved
Feb 26, 2026Degradation in some checkout stepsGitHub have acknowledged and resolved an incident affecting their platform. https://www.githubstatus.com/incidents/vd3xqfq36rgm Users should no longer experience intermittent checkout failures.1h 20mResolved
Feb 24, 2026Mac Cloud Maintenance - Tuesday, February 24th, 2:00 AM – 6:00 AM UTCThe scheduled maintenance has been completed.4h 0mScheduled
Feb 22, 2026Sign-In Issue Affecting Email/Password LoginsOur authentication provider has confirmed the earlier service disruption has been fully mitigated: https://status.auth0.com/incidents/kknl0nbdzbvx Email/password login functionality has been restored and is operating…1h 40mResolved
Feb 20, 2026Pipeline UI Degradation and GitHub Checks DeliveryThis incident has been resolved. Between approximately 16:00 UTC and 17:10 UTC, users may have experienced slow load times on the Pipelines page, errors when viewing pipeline and workflow history, and delays in GitHub…1h 18mResolved
Feb 17, 2026Bitbucket Organizations unavailable in the CircleCI UIFrom 11:48 to 17:16UTC some Bitbucket users may have experienced their organization not present in the CircleCI UI. Additionally some users may have encountered an issue when using `circleci config validate`. We…-592 minResolved
Feb 10, 2026Delay in Jobs startingThis incident has been resolved.51 minResolved
Feb 9, 2026We are investigating issues with delays in pages loadingFollowing GitHub's service recovery, all CircleCI functionality has returned to normal operation. Jobs are processing as expected across all resource classes.36 minResolved
Feb 3, 2026Delays affecting Linux and Remote Docker jobsThis incident has been resolved. Thank you for your patience.1h 11mResolved
Feb 2, 2026Email Notifications DelayedThe issue affecting email notifications has been resolved. Build completion emails and plan-related notifications are now being delivered normally. We apologize for any inconvenience this may have caused.2h 11mResolved
Jan 29, 2026Job start delays for arm-medium, large, xlarge, 2xl resourcesThis incident has been resolved.7 minResolved
Jan 12, 2026Delays in job startWe identified and resolved an issue that caused jobs to be delayed. During this period, some customers experienced longer than normal job start times while we performed database optimization work. Our team has completed…-22 minResolved
Jan 8, 2026Issues with jobs starting for certain Bitbucket usersThis issue has been resolved. Organizations using Bitbucket are now able to build successfully following mitigation actions we implemented earlier today. What happened: We identified an issue where retrieving user…36h 1mResolved
Dec 16, 2025Higher wait times for Linux, Remote Docker and Mac resource classesThis incident has been resolved and wait times have returned to normal. We appreciate your patience.54 minResolved
Dec 15, 2025Higher wait times for Linux, Remote Docker and ARM resource classesBetween 21:14 and 21:26 UTC, December 15, 2025, customers using Machine, Linux Remote Docker, and ARM resource classes experienced elevated wait times when starting jobs. Wait times reached up to 5 minutes during this…-29 minResolved
Dec 12, 2025Usage API Data Unavailable for December 11, 2025The Usage API issue has been resolved. Data is loaded for yesterday 12/11. Thank you for your patience.1h 45mResolved
Dec 4, 2025Issue with JobsThe incident has been resolved. Thank you for your patience. The "infra-fail" should no longer be occurring.1h 22mResolved
Dec 4, 2025MacOS jobs without a resource class set will not runThis incident has been resolved.1h 45mResolved
Dec 3, 2025Pipelines page not loading - Cont.## Summary _All timestamps are in UTC_ On December 2, 2025, at 16:20, we deployed a code change to workflow status computation that introduced a race condition in how workflows are terminated. This caused the…27 minResolved
Dec 3, 2025Jobs not starting## Summary _All timestamps are in UTC_ On December 2, 2025, at 16:20, we deployed a code change to workflow status computation that introduced a race condition in how workflows are terminated. This caused the…2h 19mResolved
Dec 3, 2025Jobs stuck in running state## Summary _All timestamps are in UTC_ On December 2, 2025, at 16:20, we deployed a code change to workflow status computation that introduced a race condition in how workflows are terminated. This caused the…1h 18mResolved
Dec 3, 2025Pipelines page not loading## Summary _All timestamps are in UTC_ On December 2, 2025, at 16:20, we deployed a code change to workflow status computation that introduced a race condition in how workflows are terminated. This caused the…1h 52mResolved
Dec 2, 2025Duplicate NotificationsBetween Dec 2, 2025 16:20 UTC and Dec 3, 2025 14:27 UTC, a change deployed to our workflow execution system caused duplicate notifications to be sent to some customers and triggered unexpected auto-reruns for a small…0 minResolved
Nov 26, 2025Mac M1 Large job start are delayedWe are in the process of deprecating our M1 fleet due to limited machine capacity. So while all jobs will run, some running on M1 Large may be delayed. Customers may move to M1 Medium if you must have an M1 chip…31 minResolved
Nov 26, 2025Issue with certain resource classes for Machine ExecutorsAll Machine resource classes are operating successfully. Thank you for your patience, and we apologize for any inconvenience this may have caused.38 minResolved
Nov 25, 2025Some jobs were not triggered and will need to be manually retriedThere was a short issue from 16:10 UTC to 16:13 UTC which meant that we did not successfully trigger some jobs. If you expected a job to run which did not within the last 30 minutes you should attempt to run the job…0 minResolved
Nov 22, 2025GitHub Check Notifications Impacted During RabbitMQ MaintenanceBetween 20:20 and 20:26 UTC, following our scheduled RabbitMQ maintenance, a small number of workflows may have experienced issues with GitHub check notifications. Impact: - Some workflows showed no check run status in…-15 minResolved
Nov 20, 2025M4 and M1 Mac Jobs are delayedMac M4 and M1 jobs are now running normally. Thank you again for your patience while we addressed this issue.9 minResolved
Nov 19, 2025CircleCI UI is inaccessibleThis incident has been resolved.57 minResolved
Nov 18, 2025Job Start Delays for Linux, AMD, ARM and Remote Docker ResourcesThis incident has been resolved. All resource classes including Linux, ARM, AMD, and Remote Docker are operating normally with standard queue times. System performance has been stable and capacity has been…3h 13mResolved
Nov 17, 2025Machine and Remote Docker jobs are delayedThis incident has been resolved. All resource classes including Linux, AMD, and Remote Docker are now operating normally with standard queue times. The additional capacity has been successfully deployed and job start…4h 4mResolved
Nov 12, 2025Project creation is currently failingWe have resolved the issue which prevented users from creating and modifying projects. Any attempts to create projects will need to be retried. Thank you for your patenience whilst we resolved it.18 minResolved
Nov 7, 2025RAM Disk is currently not usable in Docker jobsWe have identified and applied a workaround for the RAM DIsk issue, which means customers can resume builds using `/mnt/ramdisk`. We appreciate your patience and understanding whilst we worked on resolving this whilst…72h 43mResolved
Nov 6, 2025Docker jobs degradationSome 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.0 minResolved
Nov 5, 2025Network Delays Affecting MacOS JobsThe 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…2h 1mResolved
Nov 4, 2025Unable to add Github Authorized User Keys to ProjectsWe 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…44 minResolved
Oct 27, 2025No Linux jobs are runningThis incident has been resolved. Thank you for your patience.20 minResolved
Oct 20, 2025Build failures and delays due to upstream service disruption## Summary On October 20, 2025, from 06:55 to 22:00 UTC, CircleCI customers experienced a variety of failures and delays across the system including job failures, pipeline creation failures, periods of increased…14h 25mResolved
Oct 10, 2025Delays starting Docker JobsThis incident has been resolved. Wait times are back to normal. We thank you for your patience while our engineers fixed the underlying cause.1h 53mResolved
Oct 10, 2025Delay in Usage API DataThe incident has been resolved. We appreciate your patience. We will continue to monitor throughout the weekend.8h 51mResolved
Oct 7, 2025Insights Page Loading Errors and Approval Job Button IssuesThis incident has been resolved. Both the Insights page and Approval Job buttons are fully operational. System monitoring confirms stable operation Thank you for your patience while our engineers worked to resolve this…12 minResolved
Oct 1, 2025Insights UI unresponsiveThis incident has been resolved. The Insights UI is fully operational and all workflow data is accessible. Thank you for your patience during this incident.3h 19mResolved
Sep 8, 2025Job start times for m1.medium, m2pro.medium, and m2pro.large are elevatedThe issue impacting queue times for Mac M1 medium and large jobs has now been resolved. Mac M4 Pro resources remain available with additional capacity. Thank you for your patience while our engineers worked to resolve…3h 19mResolved
Sep 1, 2025M2Pro.Large resource class jobs delayedJobs should now be running normally. Thank you for waiting whilst we addressed this issue.3h 19mResolved
Aug 25, 2025GitLab projects are not buildingThis incident has been resolved.6h 46mResolved
Aug 24, 2025Degraded workspace performanceThis incident has been resolved.1h 21mResolved

How to Read This CircleCI Incident Log

Each row is an incident PulsAPI observed, not a summary written afterwards. The duration is wall-clock time between the first failing check and the first clean one, so it includes the window before CircleCI acknowledged anything. Vendor post-mortems typically measure from acknowledgement, which is why their numbers are usually shorter.

Incidents still open have no duration yet and are listed as ongoing rather than being given a running total. The archive covers the last 365 days; anything older has aged out of the window rather than never having happened.

The longest single CircleCI outage in this window ran 52d 22h, against a mean recovery of 16h 34m. If you depend on CircleCI in a customer-facing path, the longest figure is the one to design around. The mean is what happens on a normal bad day; the maximum is what happens on the worst one.