Existing clusters created prior to the release on June 22nd 2026 have switched from using WireGuard to Konnectivity for communication between the control plane and worker nodes. When upgrading, this will cause a brief outage. Since clusters created after June 22nd are already using Konnectivity, the…

How I tracked down a tiny Go lifecycle bug in Kubernetes kubelet which leaked a context on every startPodSync.

What happened? On a single-node cluster of 1.36.0-do.1 with 8-day uptime, kubelet process memory grows holding almost a million cancelable contexts: File: kubelet Build ID: 5641c13549f2cbf23808dc5e...

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