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Kubernetes v1.35 introduces 60 enhancements, including significant features like in-place Pod resource updates and native workload identity with automated certificate rotation. The release also features new stable, beta, and alpha functionalities, along with some deprecations. Community contributions continue to drive the project's growth and improvement.
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Kubernetes v1.35, dubbed "Timbernetes," rolls out with 60 enhancements, including 17 stable, 19 beta, and 22 alpha features. A notable stable feature is the in-place update of Pod resources, allowing users to change CPU and memory settings without restarting Pods. This addresses previous challenges where such changes could disrupt workloads, particularly for stateful applications. The Kubernetes community played a key role in this improvement, led by SIG Node through KEP #1287.
On the beta side, Kubernetes now supports native workload identity with automated certificate rotation for Pods. This simplifies service mesh integration and strengthens security by eliminating the need for external controllers. The kubelet generates keys and requests certificates, enhancing the mTLS flow without bearer tokens in the issuance path, a significant shift for security architecture. This work comes from KEP #4317, led by SIG Auth.
One of the alpha features introduced is the node-declared features framework, allowing nodes to declare their supported Kubernetes features. This aids in ensuring Pods are scheduled only on compatible nodes, improving overall reliability. The kube-scheduler and other components will utilize this information, enhancing scheduling accuracy. This was developed under KEP #5328 by SIG Node. Other highlights include the graduation of features like the traffic distribution mechanism and the Job API's managedBy field, which allows external controllers to synchronize Job statuses effectively.
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