* Summary API will include pod CPU and Memory stats for CRI container runtime. ([#60328](https://github.com/kubernetes/kubernetes/pull/60328), [@Random-Liu](https://github.com/Random-Liu))
* dockertools: disable memory swap on Linux. ([#59404](https://github.com/kubernetes/kubernetes/pull/59404), [@ohmystack](https://github.com/ohmystack))

	SMSW:            "SMSW",
	SQRTPD:          "SQRTPD",
	SQRTPS:          "SQRTPS",
	SQRTSD:          "SQRTSD",
	SQRTSS:          "SQRTSS",
	STC:             "STC",
	STD:             "STD",
	STI:             "STI",
	STMXCSR:         "STMXCSR",
	STOSB:           "STOSB",
	STOSD:           "STOSD",
	STOSQ:           "STOSQ",
	STOSW:           "STOSW",
	STR:             "STR",

- Pod will not start when Init container was OOM killed. (#104650, @yxxhero) [SIG Node]
- Reduce the number of calls to docker for stats via dockershim. For Windows this reduces the latency when calling docker, for Linux this saves cpu cycles. (#104287, @jsturtevant) [SIG Node and Windows]
- Respect grace period when updating static pods. (#104743, @gjkim42) [SIG Node and Testing]
- The kube-proxy sync_proxy_rules_iptables_total metric now gives

  
  This fixes a bug where clients with requests using hand size x max seats greater than the nominal concurrency limit can starve other requests in the same priority level. ([#118601](https://github.com/kubernetes/kubernetes/pull/118601), [@andrewsykim](https://github.com/andrewsykim))

- Changed behavior of `kube-proxy` by allowing to set `sysctl` values lower than the existing one. ([#120448](https://github.com/kubernetes/kubernetes/pull/120448), [@aroradaman](https://github.com/aroradaman))
- Cleaned up `kube-apiserver` HTTP logs for impersonated requests. ([#119795](https://github.com/kubernetes/kubernetes/pull/119795), [@sttts](https://github.com/sttts))

## Before Upgrading

* When Response is a `metav1.Status`, it is no longer copied into the audit.Event status. Only the "status", "reason" and "code" fields are set.  For example, when we run `kubectl get pods abc`, the API Server returns a status object:

### **Application Autoscaling**
#### Horizontal Pod Autoscaler
* [alpha] [HPA Status Conditions](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale-walkthrough/#appendix-horizontal-pod-autoscaler-status-conditions).


### **Cluster Lifecycle**
#### kubeadm

The dynamic type may vary during execution but values stored in interface
variables are always <a href="#Assignability">assignable</a>
to the static type of the variable.
</p>

<pre>
var x interface{}  // x is nil and has static type interface{}
var v *T           // v has value nil, static type *T
x = 42             // x has value 42 and dynamic type int
x = v              // x has value (*T)(nil) and dynamic type *T
</pre>

- Fix the panic when kubelet registers if a node object already exists with no Status.Capacity or Status.Allocatable ([#97803](https://github.com/kubernetes/kubernetes/pull/97803), [@TeddyAndrieux](https://github.com/TeddyAndrieux)) [SIG Node]

- Fixed bug which caused the status of Indexed Jobs to only be updated when there are newly completed indexes. The completed indexes are now updated if the .status.completedIndexes has values outside of the [0, .spec.completions> range ([#115457](https://github.com/kubernetes/kubernetes/pull/115457), [@danielvegamyhre](https://github.com/danielvegamyhre))...