Kubeadm: improve the strict parsing of user YAML/JSON configuration files. Next to printing warnings for unknown and duplicate fields (current state), also print warnings for fields with incorrect case sensitivity - e.g. `controlPlaneEndpoint` (valid), `ControlPlaneEndpoint` (invalid). Instead of only printing warnings during `init` and `join` also print warnings when downloading the ClusterConfiguration, KubeletConfiguration or KubeProxyConfiguration objects from the cluster. This can be useful if the...

- Detailed scheduler scoring result can be printed at verbose level 10. ([#89384](https://github.com/kubernetes/kubernetes/pull/89384), [@Huang-Wei](https://github.com/Huang-Wei)) [SIG Scheduling]
- E2e.test can print the list of conformance tests that need to pass for the cluster to be conformant. ([#88924](https://github.com/kubernetes/kubernetes/pull/88924), [@dims](https://github.com/dims)) [SIG Architecture and Testing]

- Kubectl: print error if users place flags before plugin name ([#92343](https://github.com/kubernetes/kubernetes/pull/92343), [@knight42](https://github.com/knight42)) [SIG CLI]

- Kube-proxy: delete stale conntrack UDP entries for loadbalancer ingress IP. ([#104009](https://github.com/kubernetes/kubernetes/pull/104009), [@aojea](https://github.com/aojea))
- Kube-scheduler now doesn't print any usage message when unknown flag is specified. ([#104503](https://github.com/kubernetes/kubernetes/pull/104503), [@sanposhiho](https://github.com/sanposhiho))

- Kubectl: add `LAST RESTART` column to `kubectl get pods` output. ([#100142](https://github.com/kubernetes/kubernetes/pull/100142), [@Ethyling](https://github.com/Ethyling))
- Kubemark's hollow-node will now print flags before starting. ([#101181](https://github.com/kubernetes/kubernetes/pull/101181), [@mm4tt](https://github.com/mm4tt))

- kubeadm: enable secure serving for the kube-scheduler ([#80951](https://github.com/kubernetes/kubernetes/pull/80951), [@neolit123](https://github.com/neolit123))
- kubeadm: print the stack trace of an error for klog level `--v>=5` ([#80937](https://github.com/kubernetes/kubernetes/pull/80937), [@neolit123](https://github.com/neolit123))

- `kubectl get --watch=true` now prints custom resource definitions with custom print columns. ([#76161](https://github.com/kubernetes/kubernetes/pull/76161), [@liggitt](https://github.com/liggitt))

- Kubeadm: print all the kubelets and nodes that need to be upgraded on "upgrade plan". ([#123578](https://github.com/kubernetes/kubernetes/pull/123578), [@carlory](https://github.com/carlory)) [SIG Cluster Lifecycle]

* MESOS: Support a pre-installed km binary at a well known, agent-local path ([#28447](https://github.com/kubernetes/kubernetes/pull/28447), [@k82cn](https://github.com/k82cn))
* kubectl should print usage at the bottom ([#25640](https://github.com/kubernetes/kubernetes/pull/25640), [@dims](https://github.com/dims))

* Get command uses OpenAPI schema to enhance display for a resource if run with flag 'use-openapi-print-columns'.  ([#46235](https://github.com/kubernetes/kubernetes/pull/46235), [@droot](https://github.com/droot))
    * An example command:
    * kubectl get pods --use-openapi-print-columns