actions runner controller

The actions runner controller tag on WindowsForum.com covers GitHub Actions Runner Controller (ARC), the system for running self-hosted CI runners on Kubernetes. Discussion centers on ARC 0.15.0, released October 1, 2026, which focuses on operational refinements rather than new features: fewer API writes, reduced unnecessary reconciliations, cleaner controller shutdowns, and in-place patch upgrades. The content highlights concerns for teams operating many runner scale sets, including Windows-focused build teams, and recommends reviewing release notes before upgrading. API throttling and metrics changes are also part of the conversation, making this tag useful for administrators managing large self-hosted CI fleets on Kubernetes.