* kubeadm: the kubeadm init output now provides join control-plane example only when the preconditions for joining a control plane are satisfied ([#75420](https://github.com/kubernetes/kubernetes/pull/75420), [@fabriziopandini](https://github.com/fabriziopandini))

The new `multiPoint` plugin field is intended to simplify most scheduler setups for administrators.
Plugins that are enabled via `multiPoint` will automatically be registered for each individual extension point that they implement.
For example, a plugin that implements Score and Filter extensions can be simultaneously enabled for both.
This means entire plugins can be enabled and disabled without having to manually edit individual extension point settings.

- The sample-apiserver aggregated conformance test has updated to use the Kubernetes v1.17.0 sample apiserver ([#84735](https://github.com/kubernetes/kubernetes/pull/84735), [@liggitt](https://github.com/liggitt)) [SIG API Machinery, Architecture, CLI and Testing]

- Fix cronjob controller handling of complex schedules, like "30 6-16/4 * * 1-5", for example ([#119137](https://github.com/kubernetes/kubernetes/pull/119137), [@kmala](https://github.com/kmala)) [SIG Apps]

- Kubelet metrics have been changed to buckets. 
  For example the exec/{podNamespace}/{podID}/{containerName} is now just exec. ([#87913](https://github.com/kubernetes/kubernetes/pull/87913), [@cheftako](https://github.com/cheftako)) [SIG Node]

- Fix cronjob controller handling of complex schedules, like "30 6-16/4 * * 1-5", for example ([#119138](https://github.com/kubernetes/kubernetes/pull/119138), [@kmala](https://github.com/kmala)) [SIG Apps]

This release also contains a number of bug fixes to the feature set. Aspiring plugin authors can look at [sample-exec-plugin](https://github.com/ankeesler/sample-exec-plugin) as a way to get started.

- [`KT-61262`](https://youtrack.jetbrains.com/issue/KT-61262) K/Wasm: add a way to turn on k2 in wasm examples that don't use compose
- [`KT-61343`](https://youtrack.jetbrains.com/issue/KT-61343) K/Wasm: add a wasi example to kotlin-wasm-examples
- [`KT-62147`](https://youtrack.jetbrains.com/issue/KT-62147) [Kotlin/Wasm] Nothing typed when expression cause a backend error

  - A `create` or `update` API request with duplicate items in a keyed list no longer wipes out managedFields. Examples include env var entries with the same name, or port entries with the same containerPort in a pod spec.

CSI was first introduction as alpha in Kubernetes v1.9 and moved to beta in Kubernetes v1.10.

You can find a list of sample and production drivers in the [CSI Documentation](https://kubernetes.io/docs/concepts/storage/volumes/#csi).