Posts in 2026
The Shift to cgroup v2 in Kubernetes: What You Need to Know
By Paco Xu (DaoCloud) | Tuesday, October 06, 2026 in Blog
In Linux, cgroups (control groups) are a kernel feature used for managing system resources. Kubernetes uses cgroups to allocate resources like CPU and memory to containers, ensuring that applications run smoothly without interfering with each other. …
Scaling Kubernetes Workloads with Node Swap
By Ocean Xie, Yuan Wang | Monday, October 05, 2026 in Blog
Memory is often the first hard limit a Kubernetes cluster hits. Nodes run out of RAM long before they run out of CPU, and the new wave of agentic AI workloads makes this worse. These workloads demand large memory footprints to start up and run …
Spotlight on SIG Apps
By Natalie Fisher (VMware by Broadcom) | Tuesday, September 22, 2026 in Blog
As Kubernetes adoption has grown, the conversation has shifted beyond running containers to managing increasingly complex application lifecycles. Modern platforms support stateless web services, stateful databases, batch processing, AI workloads, and …
Kubernetes v1.37: Tracking When a PersistentVolumeClaim Was Last Used (Beta)
By Roman Bednář (Red Hat) | Monday, September 21, 2026 in Blog
Kubernetes v1.37 promotes the PersistentVolumeClaimUnusedSinceTime feature gate to Beta (enabled by default). With this feature, the PersistentVolumeClaim (PVC) protection controller adds an Unused condition to each PVC, telling you whether any …
Kubernetes v1.37: Hardening Container Storage with Bind Mount Options and EmptyDir Permissions
By Nispriha Jagan (Red Hat), Neeraj Krishna Gopalakrishna (Red Hat) | Wednesday, September 16, 2026 in Blog
Kubernetes v1.37 brings important storage security features: emptyDir permission modes and bind mount options. They help application programmers and security professionals implement rigorous security policies, for example, prohibiting deletion of …
Kubernetes v1.37: Pod-Level Resource Managers graduated to Beta
By Kevin Torres Martinez (Google) | Tuesday, September 15, 2026 in Blog
With the release of Kubernetes v1.37, the Pod-Level Resource Managers feature has graduated to Beta status (disabled by default)! First introduced as an Alpha feature in Kubernetes v1.36, this enhancement builds on Pod-Level Resources by equipping …
Kubernetes v1.37: Memory QoS Graduates to Beta
By Qi Wang (Red Hat), Sohan Kunkerkar (Red Hat) | Monday, September 14, 2026 in Blog
Memory QoS has graduated to Beta in Kubernetes v1.37 and is now enabled by default. On Linux nodes running cgroup v2, the feature uses the memory controller to give the kernel better guidance on how to treat container memory. It was first introduced …
Kubernetes Changed Block Tracking API - Beta Differences
By Prasad Ghangal (Veeam Kasten) | Monday, September 14, 2026 in Blog
Changed Block Tracking (CBT) support for CSI drivers shipped as Alpha in September 2025. With the March 2026 v1.0.0 release of the external-snapshot-metadata project, the feature moved to Beta. If you aren't yet familiar with changed block tracking …
Kubernetes v1.37: Native Histograms Graduates to Beta
By Richa Banker (Google) | Friday, September 11, 2026 in Blog
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 …
Kubernetes v1.37: Scheduler Preemption for In-Place Pod Resize (Alpha)
By Natasha Sarkar (Google) | Thursday, September 10, 2026 in Blog
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 …