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Open-Source Project: Kubernetes
Brief
Tracking releases and changes in the Kubernetes project. Focus on: version numbers, breaking changes, security patches, deprecation announcements. Not needed: unresolved issue discussions, forks, unofficial builds.
Description
Kubernetes has entered a more conservative, maturity-focused phase: recent releases prioritize graduating long-running features to stability and closing legacy security gaps over introducing sweeping new capabilities, even where that means breaking long-deprecated functionality outright.
Latest Release
Kubernetes v1.36 was released on April 22, 2026, the current stable version as of mid-2026.
Breaking Changes
Starting with v1.36, the long-deprecated gitRepo volume plugin is permanently disabled and cannot be re-enabled — it protected against a known security issue allowing an attacker to run code as root on a node; workloads still depending on it need to migrate to init containers or external git-sync tooling. Kubernetes 1.35 already deprecated cgroup v1 support, meaning the kubelet refuses to start by default on nodes still using it.
Ecosystem Shift
SIG-Security announced the retirement of the widely used ingress-nginx project on March 24, 2026, prompting the community to evaluate alternative ingress controllers.
Features Reaching Stability
Several long-running alpha/beta features have graduated to stable in 2026 releases, including In-Place Pod Resizing, Sidecar Containers, and Gateway API.