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Sept. 11, 2026 » Kubernetes Blog » [Archived Version]
I'm excited to announce that native histogram support for Kubernetes metrics is graduating to Beta and is enabled by default in Kubernetes v1.37! Native histograms (previously introduced as Alpha in Kubernetes v1.36 under KEP-5808) bring high-resolution, low-cardinality observability to Kubernetes metrics. By adopting Prometheus Native Histograms, Kubernetes components now expose latency and duration metrics with far greater accuracy while significantly reducing telemetry storage and scraping o…
Read MoreSept. 10, 2026 » Kubernetes Blog » [Archived Version]
In Kubernetes, resource allocation has historically been a static decision made during a Pod's initial scheduling and placement. With the graduation of the core in-Place Pod resize feature to General Availability in v1.35, application developers and cluster operators gained the powerful ability to dynamically adjust CPU and memory allocations of running containers without incurring disruptive restarts or application downtime. However, in-place resizing introduced a unique resource scheduling ga…
Read MoreSept. 9, 2026 » Kubernetes Blog » [Archived Version]
Kubernetes has many ways to describe what is happening on a Node. Readiness, taints, Pod state, labels, annotations, and provider-specific APIs each expose part of the picture. What has been missing is a shared, Kubernetes-owned way to say that a Node is draining, undergoing maintenance, or undergoing Graceful Node Shutdown. Kubernetes v1.37 introduces five well-known Node conditions that provide that description: DrainInProgress Drained MaintenancePlanned MaintenanceInProgress GracefulNodeShu…
Read MoreSept. 8, 2026 » Kubernetes Blog » [Archived Version]
AI/ML and complex batch workloads continue to push the boundaries of Kubernetes scheduling. Following the foundational workload-centric enhancements introduced in previous releases, Kubernetes v1.37 delivers the next major milestone in the Workload-Aware Scheduling (WAS) journey. In this release, the core Workload and PodGroup APIs—enabling gang scheduling—along with Workload-Aware Preemption (WAP) and shared DRA ResourceClaims for PodGroups, all graduate to Beta, solidifying their role in the …
Read MoreSept. 4, 2026 » Kubernetes Blog » [Archived Version]
Kubernetes v1.37 promotes the KubeletInUserNamespace feature gate to beta. With this feature enabled, all of the node components (kubelet, CRI and OCI runtimes, CNI plugins, and kube-proxy) can run as a non-root user on the host, using a Linux user namespace. This technique is also known as rootless mode. The work started as an experiment in 2018, and was merged into Kubernetes v1.22 (2021) as an alpha feature (Kubernetes Enhancement Proposal KEP-2033). This feature should not be confused with …
Read MoreSept. 3, 2026 » Kubernetes Blog » [Archived Version]
Kubernetes 1.37 is here and Dynamic Resource Allocation (DRA) keeps pushing past where it started! This release brings DRA Extended Resource support to GA, a milestone the team has been building toward for three straight releases. Several more features graduate to Beta or GA. A fresh batch of alpha features rounds out the release. I'll dive into what's new for DRA in Kubernetes 1.37! What's stable in 1.37DRA Extended Resource support has graduated to GA. This is the mechanism that lets DRA driv…
Read MoreSept. 2, 2026 » Kubernetes Blog » [Archived Version]
Kubernetes v1.37 includes API support for horizontal autoscaling of workloads down to zero replicas. This feature is now Beta and enabled by default. A HorizontalPodAutoscaler (HPA) that uses a suitable object metric or external metric can now scale a workload to zero replicas, then bring it back when the metric changes. Before v1.37, you needed an add-on or external component, or you had to enable the Alpha feature gate, to scale from zero. It is now part of core Kubernetes. Scaling to zero re…
Read MoreSept. 1, 2026 » Kubernetes Blog » [Archived Version]
I am excited to announce that etcd RangeStream is graduating to beta in Kubernetes v1.37. Paired with etcd v3.7, it reduces the memory the API server and etcd need to read a large collection, and makes peak usage more predictable. The cost of large readsThe API server serves most list and watch requests from its in-memory watch cache. Populating that cache requires reading a resource's full state from etcd, at startup and on every re-initialization. For a resource with many objects, or large on…
Read MoreAug. 31, 2026 » Kubernetes Blog » [Archived Version]
I am excited that storage version migration (SVM) has graduated to General Availability (GA) in Kubernetes v1.37! After a number of releases of work and testing, the built-in StorageVersionMigration API (storagemigration.k8s.io/v1) and control plane controller are now fully stable and enabled by default across all v1.37 Kubernetes clusters. The problem with stale storage versionsIn Kubernetes, stored API resources are written using a specific storage version (schema representation). The way Kub…
Read MoreAug. 28, 2026 » Kubernetes Blog » [Archived Version]
Pod Certificate / Cluster Trust Bundles Blog PostKubernetes brings a wealth of features that make it easy to run your production workloads securely and reliably. While aspects like scheduling, health checks and resource limits are probably at the front of your mind, one other important feature of Kubernetes is production identity — how your workload can authenticate to other systems in order to do its job. Up until now, the primary production identity mechanism built into Kubernetes has been se…
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