Kubernetes v1.36: Staleness Mitigation and Observability for Controllers

Kubernetes v1.36 introduces features to mitigate staleness in controllers and improve observability. Staleness occurs when a controller's cache is outdated, leading to incorrect actions or inaction. The new features include atomic FIFO processing in client-go and improvements in kube-controller-manager. These changes aim to reduce the impact of staleness and provide better insights into controller behavior. Engineers should upgrade to v1.36 to take advantage of these improvements.