Be Ready for Kubernetes 1.35

The biggest Kubernetes release of 2025 is coming. Don't get caught off guard by breaking changes.

Release: December 17, 2025

Kubernetes 1.35 Cheat Sheet

Your comprehensive guide to 1.35: mandatory cgroup v2, AI/ML scheduler primitives, and structured authentication going GA. Everything you need in one place.

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Why You Need This Cheat Sheet

Breaking Changes

cgroup v1 is disabled by default - kubelet will crash on older nodes. containerd 1.x support ends. Know what to fix before you upgrade.

New GA Features

In-place pod scaling is finally stable. Resize CPU and memory without restarts. Structured authentication enables hot-swap OIDC.

AI/ML Scheduling

Native gang scheduling for distributed training. DRA binding conditions for GPU initialization. Built for expensive hardware.

Migration Checklist

Step-by-step checklist to prepare your clusters. kubectl commands to verify compatibility. Feature gate reference table.