# Actions Runner Controller release 0.15.0

By Steven Van · 2026-10-01

Runner scale set upgrades now update in place, with new controls for shutdown, concurrency and Kubernetes API rate limits.

Actions Runner Controller 0.15.0 ships reliability, scalability and observability changes for runner scale sets in [GitHub](<https://creatorstoolbox.com/tools/github>) Actions. [The release](<https://github.blog/changelog/2026-10-01-actions-runner-controller-release-0-15-0>) is aimed at running larger runner fleets with fewer disruptions during upgrades and Kubernetes API updates.

- Patch version upgrades update resources in place, reducing disruption between autoscaling runner sets and ephemeral runner sets.

- terminationGracePeriodSeconds is configurable and now aligns with the controller manager graceful shutdown timeout.

- Runner scale sets can be reregistered when the recorded scale set no longer exists in the Actions service.

- Controller updates use patch requests instead of full update requests, which reduces Kubernetes API payload size.

- Runner status aggregation has moved to metrics for EphemeralRunnerSet and AutoscalingRunnerSet, reducing status patch requests.

- Listener Kubernetes client rate limits are configurable through QPS and burst settings.

- Controller concurrency can be set globally and per controller with max-concurrent-reconciles flags.

- Controllers filter incoming events, so they perform fewer reconciliations than before.

- Ephemeral runners are deleted faster, because the server-side check for runner removal is skipped when the runner pod exits successfully.

GitHub says the changes are especially useful for clusters with many runner scale sets, where controller throughput, graceful shutdown and accurate metrics matter for day-to-day operations.

[![](<https://github.blog/wp-content/uploads/2026/09/662413020-3d7150c4-5663-4416-b959-8bed4331f5b4.jpeg>)](<https://github.blog/changelog/2026-10-01-actions-runner-controller-release-0-15-0>)

![GitHub](<https://github.githubassets.com/assets/GitHub-Mark-ea2971cee799.png>)

GitHub

Where the world builds software — Git hosting, pull requests, issues, Actions CI/CD, and Copilot, free for public and private repos.

[View GitHub →](<https://creatorstoolbox.com/tools/github>)

[Read the original announcement →](<https://github.blog/changelog/2026-10-01-actions-runner-controller-release-0-15-0>)

[Read Actions Runner Controller release 0.15.0 on Creators Toolbox](<https://creatorstoolbox.com/blog/github-actions-runner-controller-release-0-15-0>)

---
Canonical source: https://creatorstoolbox.com/blog/github-actions-runner-controller-release-0-15-0