Keep up to date with our latest
releases and enhancements.

Container Runner Release 3.0.14    

  • Improved retries of select errors on startup of a container task
  • The task-agent binaries and pidfile are now installed at more conventional locations for both machine and container runner
  • GA release of machine runner 3.0

Machine Runner 3.0 Released    

Machine runner 3.0 is now Generally Available, providing improvements to usability, setup, and maintenance of machine runners.

Keep reading


Container runner version 3.0.13    


Container runner version 3.0.12    

  • Reduce claiming interval from 10 seconds to 5 seconds
  • Improve robustness when starting tasks on newly created nodes
  • Default to a non-root user in the container runner Docker image

Container runner version 3.0.11    

What’s New

  • CircleCI built in environment variables set as labels on task pods
  • Task pod garbage collection improvements
  • Improve task-agent task pod injection reliability
  • Improve task-agent download reliability

Container runner version 3.0.10    

What’s New

  • Add circleci symlink to the circleci-agent binary within tasks
  • Retry loading resource class token secrets on retryable errors
  • Update various dependencies

Container runner version 3.0.8    

What’s New

  • Upgrade to Go 1.20
  • Migrate Helm chart to new image repository:
  • Improve error handling and increase reliability in the task worker loop
  • Sample low-value health check logs when using the informational logging level
Runner Images

Container runner version 3.0.9    

What’s New

  • Bugfixes and package updates

Container runner version 3.0.7    

What’s New

  • Add lifecycle pre-stop command to gracefully terminate task agent on shutdown
  • Ensure all Task lifecycle step events can be sent, even on shutdown of the agent and the context is cancelled
  • Don’t delete the task pod if task agent is still running
    • This is related to issue The remotecommand package may not always handle network disconnects on the exec command, returning a nil error. Therefore, we don’t delete the task pod in this case, giving a chance for the task to complete in an “orphaned” state.
  • Prevent Task lifecycle step output from being lost during long-running jobs
  • Improve task cleanup liveness check robustness and add extra logging
  • Fix draining and cleanup of a task on shutdown of the runner agent
  • Use stricter task pod config parsing with more helpful error messaging

Container runner version 3.0.6    

What’s New

  • Various dependency updates
  • Fix for task liveness probe retries not being respected
  • Fix for task pods not being cleaned up when exiting with a run error