Kubernetes releases v1.37 ‘Garhwal’ with stable Metrics API

Kubernetes has released version 1.37, codenamed ‘Garhwal’ after a Himalayan region in India. This update includes 67 enhancements, with 16 features graduating to stable, 23 to beta, and 27 entering alpha.

A major highlight of this release is the transition of the Metrics API from beta to stable status. Although used in production for several years, the API had remained in beta due to technicalities regarding its management by a separate server rather than the API server directly.

To improve stability and scalability, the release also removes several legacy components. These include the original kube-dns, which is replaced by CoreDNS; IPVS, which is being phased out in favor of nftables; and cgroup v1, which is replaced by cgroup v2 to allow for more granular container resource management.