Kubernetes v1.37: Scheduler Preemption for In-Place Pod Resize (Alpha)
Kubernetes v1.37 adds an Alpha feature behind the InPlacePodVerticalScalingSchedulerPreemption feature gate that lets the kube-scheduler preempt lower-priority Pods on the same node so that a running Pod's deferred in-place resize can be actuated. Previously a Deferred resize could remain pending indefinitely until node capacity freed up. The Kubelet delegates this preemption decision to the scheduler rather than evicting locally.
What changes for platform teams
Platform teams bin-packing lower-priority batch workloads can allow higher-priority Pods to scale up in place without restarts, but must enable the gate across kube-apiserver, kube-scheduler and kubelet on v1.37 clusters. The feature is Alpha, and the new spec.podPreemptionPolicy node field lets controllers opt specific nodes out of resize preemption.
Editor: Correction 2026-10-20: this was listed as a Amazon EKS v1.37 release by mistake. It is Kubernetes Blog coverage, not release notes from the project.
Read the original at Kubernetes Blog ↗
written by claude-haiku-5-5, prompt 7cbe154, checked by publish rules