Posts in 2025
Kubernetes v1.35: Watch Based Route Reconciliation in the Cloud Controller Manager
By Lukas Metzner (Hetzner) | Tuesday, December 30, 2025 in Blog
Up to and including Kubernetes v1.34, the route controller in Cloud Controller Manager (CCM) implementations built using the k8s.io/cloud-provider library reconciles routes at a fixed interval. This causes unnecessary API requests to the cloud …
Kubernetes v1.35: Introducing Workload Aware Scheduling
By Maciej Skoczeń (Google), Dominik Marciński (Google) | Monday, December 29, 2025 in Blog
Scheduling large workloads is a much more complex and fragile operation than scheduling a single Pod, as it often requires considering all Pods together instead of scheduling each one independently. For example, when scheduling a machine learning …
Kubernetes v1.35: Fine-grained Supplemental Groups Control Graduates to GA
By Shingo Omura (LY Corporation) | Tuesday, December 23, 2025 in Blog
On behalf of Kubernetes SIG Node, we are pleased to announce the graduation of fine-grained supplemental groups control to General Availability (GA) in Kubernetes v1.35! The new Pod field, supplementalGroupsPolicy, was introduced as an opt-in alpha …
Kubernetes v1.35: Kubelet Configuration Drop-in Directory Graduates to GA
By Sohan Kunkerkar (Red Hat) | Monday, December 22, 2025 in Blog
With the recent v1.35 release of Kubernetes, support for a kubelet configuration drop-in directory is generally available. The newly stable feature simplifies the management of kubelet configuration across large, heterogeneous clusters. With v1.35, …
Avoiding Zombie Cluster Members When Upgrading to etcd v3.6
By Benjamin Wang VMware by Broadcom, Josh Berkus Red Hat | Sunday, December 21, 2025 in Blog
This article is a mirror of an original that was recently published to the official etcd blog. The key takeaway? Always upgrade to etcd v3.5.26 or later before moving to v3.6. This ensures your cluster is automatically repaired, and avoids zombie …
Kubernetes 1.35: In-Place Pod Resize Graduates to Stable
By Natasha Sarkar (Google) | Friday, December 19, 2025 in Blog
This release marks a major step: more than 6 years after its initial conception, the In-Place Pod Resize feature (also known as In-Place Pod Vertical Scaling), first introduced as alpha in Kubernetes v1.27, and graduated to beta in Kubernetes v1.33, …
Kubernetes v1.35: Job Managed By Goes GA
By Dejan Zele Pejchev (G-Research), Michał Woźniak (Google) | Thursday, December 18, 2025 in Blog
In Kubernetes v1.35, the ability to specify an external Job controller (through .spec.managedBy) graduates to General Availability. This feature allows external controllers to take full responsibility for Job reconciliation, unlocking powerful …
Kubernetes v1.35: Timbernetes (The World Tree Release)
By Kubernetes v1.35 Release Team | Wednesday, December 17, 2025 in Blog
Editors: Aakanksha Bhende, Arujjwal Negi, Chad M. Crowell, Graziano Casto, Swathi Rao Similar to previous releases, the release of Kubernetes v1.35 introduces new stable, beta, and alpha features. The consistent delivery of high-quality releases …
Kubernetes v1.35 Sneak Peek
By Aakanksha Bhende, Arujjwal Negi, Chad M. Crowell, Graziano Casto, Swathi Rao | Wednesday, November 26, 2025 in Blog
As the release of Kubernetes v1.35 approaches, the Kubernetes project continues to evolve. Features may be deprecated, removed, or replaced to improve the project's overall health. This blog post outlines planned changes for the v1.35 release that …
Kubernetes Configuration Good Practices
By Kirti Goyal | Tuesday, November 25, 2025 in Blog
Configuration is one of those things in Kubernetes that seems small until it's not. Configuration is at the heart of every Kubernetes workload. A missing quote, a wrong API version or a misplaced YAML indent can ruin your entire deploy. This blog …