instruction: Explain Docker containerization in CI/CD pipelines
output: Changelog Keep up to date with our latest releases and enhancements.  hello-world:
   machine:
   image: ubuntu-2404:current
   steps:
   - run:
   name: Hello World
   command: echo "hello-world"
   retention:
   caches: 5d # Keep caches for 5 days instead of default Job-level settings can only reduce retention - not extend beyond plan limits. If retention is not set at the job level, caches will be stored for the period set in plan usage controls. Learn more about CircleCI retention settings in our documentation . Collapse Aug 15, 2025 Enhancement Aug 15, 2025 Mac M4 Pro cache and workspace performance improvements Copy URL to clipboard Copied! Error! Enhancement We have improved cache step and workspace attach performance for the Mac M4 Pro resource classes. Aug 14, 2025 New feature Aug 14, 2025 Xcode 26 Beta 5 Available Copy URL to clipboard Copied! Error! New feature The Xcode 26.0 Beta 5 image is now available to be used in CircleCI pipelines on the M4 Pro resource classes. Keep reading The Xcode 26.0 Beta 5 image is now available to be used in CircleCI pipelines on the M4 Pro resource classes. Please see the full manifest for information about the software included with this image release. Known Issues: iOS 26 simulators sporadically freeze during boot and may fail to start. We recommend pre-booting simulators and, if they don’t start within 60 seconds, terminate them and restart them. Metal Toolchain is currently non-functional. A workaround is available by running the following commands before use: xcodebuild -downloadComponent metalToolchain -exportPath /tmp/MetalExport/
   sed -i '' -e 's/17A5295f/17A5241e/g' /tmp/MetalExport/MetalToolchain-17A5295f.exportedBundle/ExportMetadata.plist
   xcodebuild -importComponent metalToolchain -importPath /tmp/MetalExport/MetalToolchain-17A5295f.exportedBundle Collapse Images Aug 13, 2025 Enhancement Aug 13, 2025 Runner Release 3.1.5 Copy URL to clipboard Copied! Error! Enhancement Runner Release 3.1.5 Container Runner: Keep reading Runner Release 3.1.5 Container Runner: Version 3.1.5 introduces Windows support for container runner in open preview. For detailed setup instructions and configuration guidance, visit our Windows container runner documentation . Container runner now filters for pods specifically managed by each replica, rather than watching all task pods with the managed-by: circleci-container-agent label. This optimization reduces API load when running multiple container agent instances within the same cluster. Added support for running the primary container under a custom user ID (UID). You can now specify a valid UID using the docker.user key in your CircleCI configuration, which will be mapped to the task pod container user. Collapse Runner Aug 13, 2025 Enhancement Aug 13, 2025 Reliability improvements to OIDC tokens Copy URL to clipboard Copied! Error! Enhancement We’ve resolved a bug that previously caused OIDC token environment variables to be missing for some jobs. Learn more about using OIDC. Aug 06, 2025 Enhancement Aug 06, 2025 New and improved docs site Copy URL to clipboard Copied! Error! Enhancement New and improved docs site We’re excited to launch our revamped documentation site at https://circleci.com/docs with better navigation, organization, and layout. Keep reading New and improved docs site We’re excited to launch our revamped documentation site at https://circleci.com/docs with better navigation, organization, and layout. What’s new: Improved navigation structure Version switching for CircleCI Server docs Cleaner visual layout Behind the scenes: We’ve migrated from our custom-built platform to Antora , which brings a number of benefits Improved organization of our source files Enhanced collaboration opportunities. Once our repo is public (coming soon) anyone can contribute including building the site in their local environment A more stable site with lower upkeep requirements Significantly faster publishing pipeline Share your feedback: Try out the new site and let us know what you think on our community forum . Known issues The docs repo (from which this new site is built) is not yet public. This means that all links from our docs to the repo are currently broken. This will be fixed in the coming days. Our 404 page is currently broken. Collapse Dev tools Aug 06, 2025 New feature Aug 06, 2025 Automatic retry of workflows released Copy URL to clipboard Copied! Error! New feature We have added automatic workflow retry functionality to help you handle flaky resources and intermittent failures without manual intervention. You can now specify max-auto-reruns in your workflow configuration with a value between 1 and 5 to automatically rerun failed workflows.
  Just like the manual “re-run from failed” feature, only failed jobs will be retried - successfully finished jobs will not be rerun during automatic retries. This eliminates the need to manually monitor and restart workflows that fail due to environmental issues beyond your control. Keep reading We have added automatic workflow retry functionality to help you handle flaky resources and intermittent failures without manual intervention. You can now specify max-auto-reruns in your workflow configuration with a value between 1 and 5 to automatically rerun failed workflows.
  Just like the manual “re-run from failed” feature, only failed jobs will be retried - successfully finished jobs will not be rerun during automatic retries. This eliminates the need to manually monitor and restart workflows that fail due to environmental issues beyond your control. The UI will provide clear indicators when a workflow is being automatically retried and show how many retry attempts have been made. This feature is available to all CircleCI customers across all plan types. For teams dealing with flaky tests or unreliable external dependencies, this update significantly improves operational efficiency by reducing the manual overhead of workflow management.
  For more details on configuring automatic workflow reruns, visit the documentation . Note: For those needing to auto-retry individual steps, automatic step retry is in the works! Collapse Aug 04, 2025 New feature Aug 04, 2025 Official CircleCI Terraform provider now available Copy URL to clipboard Copied! Error! New feature The officially supported CircleCI Terraform provider is now available. The Terraform provider supports administrative tasks for managing projects, pipelines, triggers, and contexts. A part of the Platform Team Toolkit , Terraform provider can be used to leverage infrastructure as code practices and make managing CircleCI projects fast and easy. See the official Terraform repo for more information. Jul 31, 2025 Enhancement Jul 31, 2025 Server release 4.7.6 Copy URL to clipboard Copied! Error! Enhancement Updates RDS is now compatible with server 4.7.6. We have removed the permissions checks that previously blocked full support. In server-terraform , the included Nomad images are now based on Ubuntu 22.04 with CgroupsV1 enabled. CgroupsV2 is currently unsupported. These nomad AMIs are built automatic security updates enabled. CVE fixes Bug Fixes Fixed an issue that caused a lag between when jobs finished and when they were marked as complete Image Updates frontend (underlying container is now circle-www-api ) builds-service orbs-service workflows-conductor insights-service cron-service webhook-service distributor branch-service runner-admin feature-flags execution-gateway Known Issues RabbitMQ needs features enabled prior to upgrading Server Jul 31, 2025 Maintenance Jul 31, 2025 Server Release 4.8.1 Copy URL to clipboard Copied! Error! Maintenance Updates RDS is now compatible with server 4.8.1. We have removed the permissions checks that previously blocked full support. When new workflows are stored, job numbers are generated for all jobs in that workflow together. Context-service will now use the same method as workflows-conductor to for table name consistency Bug Fixes Fixed an issue that caused a lag between when jobs finished and when they were marked as complete Removed the GitHub App pipelines tooltips and pipeline management from the UI as Server does not support GitHub App pipelines at this time. SSH rerun now works in air-gap and in installations with a self-signed certificate on GitHub Enterprise. Image Updates audit-log-service webhook-service cron-service branch-service feature-flags distributor execution-gateway output frontend (underlying container is now circle-www-api ) builds-service orbs-service workflows-conductor insights-service machine-provisioner permissions-service domain-service policy-service authentication service ciam-service ciam-gateway contexts-service picard runner-admin step web-ui Known Issues Vault may not refresh its client token after a month of uptime. Migrate to Tink to resolve this issue. Retry with SSH for jobs using the machine executor advertises a private IP address. For this reason, retry with SSH for jobs using the machine executor works as standard for public installations, but for private installs you would need to ensure that you can access the private IP advertised. For example, by using a VPN into your VPC. To learn more about Server 4.8 installation, migration, or operations please review our documentation . Server Jul 29, 2025 Enhancement Jul 29, 2025 "Project setup" page now supports managing all GitHub pipelines and triggers Copy URL to clipboard Copied! Error! Enhancement The work on the page Project Settings > Project Setup is now complete. This page now provides complete control over GitHub pipelines and triggers from a single interface, regardless of how they’re integrated - whether through GitHub OAuth app or GitHub App integration. Jul 29, 2025 Enhancement Jul 29, 2025 "Project setup" tab replaces "Pipelines" and "Triggers" tabs for GitHub OAuth organizations Copy URL to clipboard Copied! Error! Enhancement All organizations that integrate with GitHub OAuth (recognizable by the segment /github/ or /gh/ in the URL) no longer have access to the Project setting tabs Pipelines and Triggers . Instead, Project settings > Project setup now consolidates both GitHub pipelines and triggers in one place. Jul 25, 2025 Enhancement Jul 25, 2025 Login UI update Copy URL to clipboard Copied! Error! Enhancement The login page has been simplified by removing unnecessary steps. Users now see all available login options (Email, GitHub, and Bitbucket) immediately on the login page, eliminating the need to click an additional “Login” button. Messaging that previously restricted GitHub and Bitbucket login options based on signup dates has also been removed. Users should continue to log in with the same method they created their account with. Jul 24, 2025 Enhancement Jul 24, 2025 Deleting organizations through CircleCI web UI Copy URL to clipboard Copied! Error! Enhancement You can now delete your own Standalone and VCS organizations directly from the CircleCI web app. Keep reading You can now delete your own Standalone and VCS organizations directly from the CircleCI web app. How to delete your organization: Navigate to Organization Settings > Overview and scroll to the bottom of the page. What to expect: Deletions may take up to 24 hours to process completely. Standalone organizations: Will be removed entirely after a few hours. VCS organizations: All projects and data will be removed, but the organization will remain visible. Requirements: Organization must be on the Free plan. You must be an organization admin. This self-service feature eliminates the need to contact support for organization deletions. Collapse Jul 24, 2025 Maintenance Jul 24, 2025 Planned Maintenance: Insights Pages & API (July 27, 14:00 to 16:00 UTC) Copy URL to clipboard Copied! Error! Maintenance The Insights pages in the CircleCI web app & endpoints in the v2 API will be temporarily unavailable for planned maintenance on Sunday, July 27, between 14:00 and 16:00 UTC. Jul 07, 2025 Enhancement Jul 07, 2025 Rollback via pipeline now supports an optional reason Copy URL to clipboard Copied! Error! Enhancement For customers who are using rollback via pipeline, you can now add an optional rollback reason when triggering your rollback. Keep reading For customers who are using rollback via pipeline, you can now add an optional rollback reason when triggering your rollback. Collapse Jul 03, 2025 Maintenance Jul 03, 2025 Branch filter dropdown bug fixed Copy URL to clipboard Copied! Error! Maintenance There was a bug that caused some branches to be missing from the branch filter dropdown on the Pipelines page. This has now been fixed and all branches should display as expected. Jul 02, 2025 New feature Jul 02, 2025 Join the CircleCI testing agent waitlist Copy URL to clipboard Copied! Error! New feature You can sign up for the CircleCI testing agent waitlist here . The testing agent will fix flaky tests for you among other capabilities. Jun 30, 2025 Enhancement Jun 30, 2025 GitHub App Integration: Status Checks for Skipped Jobs No Longer Reported - Now Live Copy URL to clipboard Copied! Error! Enhancement What’s Changed Keep reading What’s Changed Status checks for skipped jobs are no longer reported to GitHub when using the GitHub App integration. Previously, we reported skipped jobs as “pending” before they were skipped. Why This Matters Improved PR workflow: Prevents situations where required checks could be bypassed when jobs are skipped Consistent behavior: Aligns with our existing behavior in the CircleCI GitHub OAuth integrations Better security: Ensures all required checks must actually run and pass before PRs can be merged Who This Affects This change only applies to users who have connected CircleCI to GitHub using the GitHub App integration. Users of our GitHub OAuth integration already experience this behavior. What You Need to Do No action is required. This change has been applied automatically to all pipelines using the GitHub App integration. Collapse Jun 30, 2025 Maintenance Jun 30, 2025 API maintenance Copy URL to clipboard Copied! Error! Maintenance CircleCI is performing API maintenance on June 30th. No downtime or customer impact is expected. Refer to the CircleCI status page for the most up to date information. Jun 29, 2025 Maintenance Jun 29, 2025 Auto-generated deploy markers have been sunset as of June 17, 2025 Copy URL to clipboard Copied! Error! Maintenance CircleCI will no longer automatically generate “ deploy markers ”. This functionality is being sunset in favor of more accurate, manually configured deploy markers that help users visualize their deployments in the CircleCI web app. Questions or concerns? Reach out to aditya.kumar@circleci.com Jun 25, 2025 Enhancement Jun 25, 2025 VS Code extension now supports Rollback pipeline values Copy URL to clipboard Copied! Error! Enhancement We’ve updated the CircleCI VS Code extension to support a new set of pipeline values used by the Rollbacks feature. Keep reading We’ve updated the CircleCI VS Code extension to support a new set of pipeline values used by the Rollbacks feature. You can now view and work with these deployment-specific values directly within your development environment. Newly supported pipeline values: pipeline.deploy.component_name pipeline.deploy.environment_name pipeline.deploy.target_version pipeline.deploy.current_version pipeline.deploy.namespace Collapse Jun 25, 2025 Enhancement Jun 25, 2025 Rollback Pipeline UI Changes for Release Agent Customers Copy URL to clipboard Copied! Error! Enhancement For customers using CircleCI’s release-agent , the CircleCI web app now lets you invoke a rollback from the Project Overview Page. We’ve removed other rollback options from the Project Overview page for simplicity in these cases. Keep reading For customers using CircleCI’s release-agent , the CircleCI web app now lets you invoke a rollback from the Project Overview Page. We’ve removed other rollback options from the Project Overview page for simplicity in these cases. Collapse Jun 25, 2025 Enhancement Jun 25, 2025 Zstd for Cache Compression Copy URL to clipboard Copied! Error! Enhancement The compression algorithm used for caches as part of the save_cache step is changing from gzip to zstd. This change will be rolled out gradually to all projects over the next few weeks. For more information please refer to our Discuss post. Jun 24, 2025 Enhancement Jun 24, 2025 Component's Current Version Now Available on Project Overview Page Copy URL to clipboard Copied! Error! Enhancement Based on user feedback, we have added the ability see your component’s current version in the deploys card on the project overview page. This is available for all who use manual deploy markers. Keep reading Based on user feedback, we have added the ability see your component’s current version in the deploys card on the project overview page. This is available for all who use manual deploy markers. Collapse Jun 24, 2025 New feature Jun 24, 2025 Create and delete organization endpoints available in the CircleCI v2 API Copy URL to clipboard Copied! Error! New feature You can create and delete CircleCI organizations programmatically through newly released Organization endpoints: Keep reading You can create and delete CircleCI organizations programmatically through newly released Organization endpoints: Create organization Delete organization Collapse Jun 24, 2025 New feature Jun 24, 2025 Multi-factor authentication - general availability Copy URL to clipboard Copied! Error! New feature Multi-factor authentication (MFA) is now generally available to all users who log in to CircleCI with email address and password. MFA is optional to configure until November 30, 2025. MFA will be required for all email and password logins starting December 1, 2025. Learn how to set up MFA for your account . Jun 24, 2025 New feature Jun 24, 2025 Server Release 4.8.0 Copy URL to clipboard Copied! Error! New feature Server 4.8.0 Changelog Keep reading Server 4.8.0 Changelog Before Upgrading See the CircleCI server 4.8 release notes and upgrade guide for this release. NOTE: Vault is being deprecated and will no longer be supported in server 5.0. Refer to our script for steps to migrate to Tink. What’s New in Release 4.8.0 The v4.8 release introduces further security improvements and support for flexible job dependencies. NEW FEATURES Nomad UI is now accessible. Amazon Message Queue (AMQ) is now supported. Added support for configuring IOPS and throughput parameters for EC2 instances in the machine provisioner. New parameters can be found in the values.yaml reference. CircleCI Server now supports nomad servers externalized from your Kubernetes cluster. You may now deploy nomad servers on your own VM instances. This should improve the performance and stability of your nomad clusters. Support for Expression-based job filters Support for flexible job dependency . Support for Dynamic When Statements for Workflows (Breaking Change) NEW SERVICE: public-api-service REMOVALS: web-ui-user-settings web-ui-org-settings web-ui-insights web-ui-project-settings web-ui-runners Support for launch-agent. Already-disabled v2 runner API endpoints. CHANGES Moved from CircleCI fork back to upstream Hashicorp Nomad for improved stability and security updates. JSON logging is enabled for Clojure services. This change allows customers to ingest logs from these services to their log aggregators in a familiar and consistent format. All containers now run with runAsNonRoot: true Telegraf will now include circleci_server_version in all the metrics it collects. The frontend container now uses the circleci-www-api image instead of the previously named frontend image. Clojure containers have moved to Java 21. Kong has been updated to 3.4.2 Rerun workflow endpoint now has a rate limit of 20 requests per 5 seconds (max burst: 10) In server-terraform , the included Nomad images are now based on Ubuntu 22.04 with CgroupsV1 enabled. CgroupsV2 is currently unsupported. These nomad AMIs are built automatic security updates enabled. PERFORMANCE IMPROVEMENTS: Database Operations: Optimized workflow storage to avoid N+1 database queries, reducing latency and improving concurrency. Workflow Status API: Now uses stored workflow status instead of generating it from job data, improving response times. Compiled Config Size: Removed unused job definitions from compiled configs, reducing size for customers with large configurations. BUG FIXES Expression based restrictions via API have been fixed. Job handlers no longer silently drop on partial failure. Fixed broken branch picker functionality. SSH reruns in air-gapped installs have been restored. Broken pipelines now show triggering information in the UI. DATABASE MIGRATIONS The following services will run migrations when upgrading to this version: workflows-conductor authentication-svc builds-service branch-service contexts-service cron-service distributor domain-service insights-service machine-provisioner orb-service permissions-service runner-admin NOTES Customers that are using “S3-compatible” object storage should ensure that their object storage supports S3’s default data integrity protections . This includes (but is not limited to) Minio RELEASE.2025-01-20T14-49-07Z and Nutanix Objects v5.1.1. KNOWN ISSUES Docker jobs may take an extra 60 seconds to conclude under certain circumstances. RDS is not compatible due to certain permissions checks; this will be fixed in 4.8.1. Vault may not refresh its client token after a month of uptime. Migrate to Tink to resolve this issue. Retry with SSH for jobs using the machine executor advertises a private IP address. For this reason, retry with SSH for jobs using the machine executor works as standard for public installations, but for private installs you would need to ensure that you can access the private IP advertised. For example, by using a VPN into your VPC. To learn more about Server 4.8 installation, migration, or operations please review our documentation . Collapse Server Jun 24, 2025 New feature Jun 24, 2025 Just in time provisioning for single sign on Copy URL to clipboard Copied! Error! New feature CircleCI single sign-on (SSO) now supports just in time (JIT) provisioning for org membership, user roles, and user groups. With JIT, CircleCI user profiles are updated each time the user authenticates with your organization’s chosen identity provider. Learn how to set up SSO Group Mapping Jun 24, 2025 Enhancement Jun 24, 2025 "Project setup" page now supports editing capabilities Copy URL to clipboard Copied! Error! Enhancement We’ve expanded the Project settings > Project Setup page with new editing capabilities.
  Previously view-only, this page now allows some management of pipelines and triggers in one unified location. Keep reading We’ve expanded the Project settings > Project Setup page with new editing capabilities.
  Previously view-only, this page now allows some management of pipelines and triggers in one unified location. What’s new: Users can now use this page to: View all pipelines integrated with GitHub (both OAuth app and GitHub App integration) and their trigger Add GitHub App and Custom Webhook triggers Edit existing GitHub App, GitHub OAuth and Custom Webhook triggers Delete Custom webhook triggers Coming soon: Add and delete GitHub OAuth triggers. The “delete” functionality will ensure that OAuth pipelines stop building, without the need to manually remove the webhook from GitHub Add, edit and delete schedule triggers for OAuth pipelines Add, edit and delete pipelines Delete GitHub App triggers For pipelines connected to Bitbucket or GitLab, please continue using the existing Pipelines and Triggers tabs. This unified experience will eventually replace the separate Pipelines and Triggers tabs. Questions or feedback? Reach out to benedetta@circleci.com. Collapse Jun 23, 2025 Enhancement Jun 23, 2025 Identity Provider Initiated Login for Single Sign On Copy URL to clipboard Copied! Error! Enhancement Identity provider(IdP) initiated login is now allowed for organizations that enforce single sign on in CircleCI. https://circleci.com/docs/authentication/sso-overview/ Jun 23, 2025 Enhancement Jun 23, 2025 Deleting contexts double confirmation Copy URL to clipboard Copied! Error! Enhancement Users attempting to delete a context are now prompted to double confirm the delete by typing the name of the context. Previously the user was prompted to type “DELETE”. Jun 16, 2025 Enhancement Jun 16, 2025 Improved navigation for logged-out users Copy URL to clipboard Copied! Error! Enhancement We’ve improved the experience for logged-out users accessing in-app pages by updating the redirect button to guide users to our login page instead of showing a 404 error. Jun 16, 2025 Enhancement Jun 16, 2025 Status Checks for Skipped Jobs in GitHub App Integration Copy URL to clipboard Copied! Error! Enhancement Previously, we had planned to report skipped jobs as “success” , but after careful consideration, we’ve decided to not report them at all. Keep reading Previously, we had planned to report skipped jobs as “success” , but after careful consideration, we’ve decided to not report them at all. What’s Changed Currently, we report skipped jobs as “pending”.
  We are now working to implement a change so that Status checks for skipped jobs will no longer be reported to GitHub when using the GitHub App integration. Why This Matters Improved PR workflow : Prevents situations where required checks could be bypassed when jobs are skipped Consistent behavior : Aligns with our existing behavior in the CircleCI GitHub OAuth integrations Better security : Ensures all required checks must actually run and pass before PRs can be merged Who This Affects This change only applies to users who have connected CircleCI to GitHub using the GitHub App integration. Users of our GitHub OAuth integration already experience this behavior. What You Need to Do No action is required. This change will be applied automatically to all pipelines using the GitHub App integration when it is rolled out. We expect to complete the rollout by the end of June 2025. Collapse Jun 16, 2025 Enhancement Jun 16, 2025 Improved invite flow for GitHub OAuth App integrated organizations Copy URL to clipboard Copied! Error! Enhancement We’ve updated the invite links within the Organization Settings > People tab for GitHub OAuth app integrated organizations to bypass the signup page, enabling users to automatically join their organization after account setup. Jun 09, 2025 New feature Jun 09, 2025 Mac M4 Pro Copy URL to clipboard Copied! Error! New feature Mac M4 Pro resources are now available on CircleCI, bringing Apple’s most advanced silicon directly to your CI/CD pipelines. Experience cutting edge performance with optimized CPU and memory configurations designed to effectively tackle your most challenging tasks. Keep reading Mac M4 Pro resources are now available on CircleCI, bringing Apple’s most advanced silicon directly to your CI/CD pipelines. Experience cutting edge performance with optimized CPU and memory configurations designed to effectively tackle your most challenging tasks. Mac M4 Pro is available for customers on Performance and Scale plans in the following configurations: Size CPU RAM Cost (credits/min) m4pro.medium 6 28GB 200 m4pro.large 12 56GB 400 Supported Xcode versions:
  16.4.0,
  16.3.0,
  16.2.0,
  16.1.0,
  16.0.0,
  15.4.0,
  15.3.0,
  15.2.0,
  15.1.0,
  14.3.1,
  13.4.1 See the macOS documentation and CircleCI price list for details. Collapse Jun 09, 2025 Enhancement Jun 09, 2025 Fixed order of parameters in trigger pipelines modal Copy URL to clipboard Copied! Error! Enhancement The trigger pipeline modal now always lists pipeline parameters in the same order in which they appear in the configuration file. Jun 09, 2025 New feature Jun 09, 2025 CircleCI Terraform provider available Copy URL to clipboard Copied! Error! New feature The CircleCI Terraform Provider enable customers to manage CircleCI projects with IaC patterns. For large-scale organizations, this enables automated project creation for new teams or projects. For existing projects and teams Terraform offers consistent settings and controls across all projects. Keep reading The CircleCI Terraform Provider enable customers to manage CircleCI projects with IaC patterns. For large-scale organizations, this enables automated project creation for new teams or projects. For existing projects and teams Terraform offers consistent settings and controls across all projects. There is a planned breaking change in the public-api-service that affects the Get Trigger operation. We are working to fix this on the next release. change will remove name and description from the API response for the getTrigger endpoint. We will move the terraform provider to General Availability once we have addressed the planned API changes. https://github.com/CircleCI-Public/terraform-provider-circleci Collapse Jun 09, 2025 Enhancement Jun 09, 2025 Dark mode available in CircleCI web app Copy URL to clipboard Copied! Error! Enhancement Users can now enable “Dark mode” through the CircleCI web app. Comment in our community forum with any issues. Jun 09, 2025 Enhancement Jun 09, 2025 Ability to test run pipelines with local config files via the CircleCI CLI Copy URL to clipboard Copied! Error! Enhancement circleci pipeline run now lets you test run pipelines using local, unversioned configuration files directly from the CircleCI CLI. This enables you to validate config changes before committing them to version control. Run circleci pipeline run -h for instructions. To run a pipeline with a local config file, you’ll need to enable “Allow triggering pipelines with unversioned config” in Organization Settings > Advanced. Jun 06, 2025 Enhancement Jun 06, 2025 Ability to list pipeline definitions via the CircleCI CLI Copy URL to clipboard Copied! Error! Enhancement circleci pipeline list now returns a list of pipeline definitions for a given project from the CircleCI CLI. Run circleci pipeline list -h for instructions. Jun 04, 2025 Maintenance Jun 04, 2025 Server release 4.7.5 Copy URL to clipboard Copied! Error! Maintenance Updates Bug Fixes CVE fixes Fixed a bug where the pipeline page for OSS repositories could be visible without being logged into CircleCI. Please reach out to your account team for more information. SSH rerun now works in air-gap and in installations with a self-signed certificate on GitHub Enterprise. Image Updates frontend (underlying container is now circle-www-api ) builds-service orbs-service workflows-conductor insights-service Known Issues RabbitMQ needs features enabled prior to upgrading Server Jun 04, 2025 New feature Jun 04, 2025 Xcode 16.4 GA Available Copy URL to clipboard Copied! Error! New feature The Xcode 16.4 GA image is now available to be used in CircleCI pipelines. The full manifest of installed software can be found here . Images Jun 03, 2025 New feature Jun 03, 2025 Instant rollback via the CCI web app Copy URL to clipboard Copied! Error! New feature From the “Project Overview” page, you can now set up a rollback pipeline that lets you quickly revert to a previous deployment version when invoked. Read more in our community forum , send any questions/comments to sebastian@circleci.com. Keep reading From the “Project Overview” page, you can now set up a rollback pipeline that lets you quickly revert to a previous deployment version when invoked. Read more in our community forum , send any questions/comments to sebastian@circleci.com. Collapse Jun 03, 2025 New feature Jun 03, 2025 Introducing Platform Team Toolkit - Say goodbye to pipeline sprawl Copy URL to clipboard Copied! Error! New feature Platform Team Toolkit enables enterprise CI/CD optimization and governance that eliminates duplication, enforces security compliance, and accelerates delivery while empowering developers with the flexibility and speed they need. Keep reading Platform Team Toolkit enables enterprise CI/CD optimization and governance that eliminates duplication, enforces security compliance, and accelerates delivery while empowering developers with the flexibility and speed they need. It’s a combination of features that unlock efficiency and reduce operational toil for platform teams managing pipelines at scale, all while enhancing developer experience and velocity. Key components of Platform Team Toolkit: Terraform Module (coming soon) - Built on top of our Administration APIs. Provides a centralized tool to manage all projects on CircleCI. With infrastructure as code policies, you can set standards and maintain settings in one place. URL Addressable Orbs - Removes the barriers to reusable config by allowing any file in your VCS to become a CircleCI orb. Allowlist rules maintain security and compliance. Centralized Configuration, Templates, and Overrides - Gives the platform team the ability to manage pipelines from a central template while still providing dev team autonomy where it’s required. To get the most from these features we recommend you review the documentation . Collapse Jun 02, 2025 Maintenance Jun 02, 2025 Reminder: Maintenance window for Runner scheduled for Tomorrow June 3rd, 2025, at 19:00 PST/22:00 EST Copy URL to clipboard Copied! Error! Maintenance Reminder Maintenance window for Runner is scheduled for June 3rd, 2025, at 19:00 PST/22:00 EST. The maintenance window will last until 19:10 PST/22:10 EST. Keep reading Reminder Maintenance window for Runner is scheduled for June 3rd, 2025, at 19:00 PST/22:00 EST. The maintenance window will last until 19:10 PST/22:10 EST. During this period: Resource management will not be available The Runner web UI for inventory and installation will not be available Up to a 5-minute delayed start time for runner jobs. Collapse Runner Jun 02, 2025 Enhancement Jun 02, 2025 Auto-populate trigger pipeline modal parameters based on selected pipeline (OAuth pipelines) Copy URL to clipboard Copied! Error! Enhancement The auto-populate trigger pipeline modal parameters feature now also supports pipelines that use CircleCI’s GitHub OAuth app integration and Bitbucket Cloud integration. Previously, this feature was only available for pipelines integrated through CircleCI’s GitHub App integration. May 30, 2025 Enhancement May 30, 2025 Ability to create a trigger via the CircleCI CLI Copy URL to clipboard Copied! Error! Enhancement circleci trigger create now lets you create a trigger from the CircleCI CLI. Run circleci triger create -h for instructions. May 30, 2025 Maintenance May 30, 2025 Changes to the CircleCI Insights page Copy URL to clipboard Copied! Error! Maintenance On June 25, 2025, the Insights pages in the CircleCI web app will be updated with the following changes: Keep reading On June 25, 2025, the Insights pages in the CircleCI web app will be updated with the following changes: The organization overview “landing page” will show a more concise summary view Historical resource utilization graphs (CPU/RAM) for individual jobs will be removed from the web app. Historical resource utilization data via the CircleCI Usage API and resource utilization in the “ Resources ” tab of the Job Details page in the CircleCI web app will still be available. More details on our community forum Discuss . Collapse May 27, 2025 Maintenance May 27, 2025 Maintenance window for Runner scheduled for June 3rd, 2025, at 19:00 PST/22:00 EST Copy URL to clipboard Copied! Error! Maintenance Maintenance window for Runner is scheduled for June 3rd, 2025, at 19:00 PST/22:00 EST. The maintenance window will last until 19:10 PST/22:10 EST. Keep reading Maintenance window for Runner is scheduled for June 3rd, 2025, at 19:00 PST/22:00 EST. The maintenance window will last until 19:10 PST/22:10 EST. During this period: Resource management will not be available The Runner web UI for inventory and installation will not be available Up to a 5-minute delayed start time for runner jobs. Collapse Runner Filter by status: New feature Maintenance Enhancement Deprecation Filter by tag: Server Runner Images Orbs Dev tools View most recent