k8s: Kubernetes 1.35: Enhanced Debugging with Versioned z-pages APIs
Kubernetes Official Blog
2025-12-31
Kubernetes 1.35 adds opt-in, versioned, machine-parseable JSON responses for the existing /statusz and /flagz z-pages used by control plane components. The endpoints remain backward compatible (plain text by default); consumers request structured output by sending an Accept header with a versioned media type. Structured responses enable easier automation for health checks, config validation, and debugging tools. The feature is alpha, requires feature gates and proper RBAC/authentication, and is intended for debugging rather than production-critical automation.