* Default scheduler code is moved out of the plugin directory. ([#57852](https://github.com/kubernetes/kubernetes/pull/57852), [@misterikkit](https://github.com/misterikkit))

* CDK nginx ingress is now handled via a daemon set. ([#57530](https://github.com/kubernetes/kubernetes/pull/57530), [@hyperbolic2346](https://github.com/hyperbolic2346))

* Node affinity has moved from annotations to api fields in the pod spec.  Node affinity that is defined in the annotations will be ignored. ([#37299](https://github.com/kubernetes/kubernetes/pull/37299), [@rrati](https://github.com/rrati))

Although *v1.9* is still compatible, we recommend upgrading to one of the supported versions.
All prior versions of docker will not be supported.

#### ThirdPartyResource

If you use ThirdPartyResource objects, they have moved from being namespaced-scoped to be cluster-scoped. Before upgrading to 1.3.0, export and delete any existing ThirdPartyResource objects using a 1.2.x client:

kubectl get thirdpartyresource --all-namespaces -o yaml > tprs.yaml

Maintainers of FlexVolume drivers should implement a CSI driver and move users of FlexVolume to CSI.
Users of FlexVolume should move their workloads to CSI driver.

### Deprecation of klog specific flags

	MOVD	R1, R2             // ERROR "illegal combination"
	MOVFW	R1, R2             // ERROR "illegal combination"
	MOVDW	R1, R2             // ERROR "illegal combination"
	MOVWF	R1, R2             // ERROR "illegal combination"
	MOVWD	R1, R2             // ERROR "illegal combination"
	MOVWD	CPSR, R2           // ERROR "illegal combination"
	MOVWF	CPSR, R2           // ERROR "illegal combination"

    - [Ingress graduates to General Availability](#ingress-graduates-to-general-availability)
    - [seccomp graduates to General Availability](#seccomp-graduates-to-general-availability)
    - [Production images moved to community control](#production-images-moved-to-community-control)
    - [KubeSchedulerConfiguration graduates to Beta](#kubeschedulerconfiguration-graduates-to-beta)

- Reverted a [change](https://github.com/kubernetes/kubernetes/pull/123513) where `ConsistentListFromCache` was moved to beta and enabled by default. ([#126139](https://github.com/kubernetes/kubernetes/pull/126139), [@enj](https://github.com/enj))

  - `spec.additionalPrinterColumns` is removed in v1; use `spec.versions[*].additionalPrinterColumns` instead
  - `spec.conversion.webhookClientConfig` is moved to `spec.conversion.webhook.clientConfig` in v1
  - `spec.conversion.conversionReviewVersions` is moved to `spec.conversion.webhook.conversionReviewVersions` in v1
  - `spec.versions[*].schema.openAPIV3Schema` is now required when creating v1 CustomResourceDefinitions

	BNE	R0, R4, 1(PC)		// 80040044
	BLTU	R4, 1(PC)		// 80040068
	MOVF	y+8(FP), F4		// 6440002b
	MOVD	y+8(FP), F4		// 6440802b
	MOVF	1(F5), F4		// a404002b
	MOVD	1(F5), F4		// a404802b
	MOVF	F4, result+16(FP)	// 6460402b
	MOVD	F4, result+16(FP)	// 6460c02b
	MOVF	F4, 1(F5)		// a404402b
	MOVD	F4, 1(F5)		// a404c02b
	MOVW	R4, F5			// 85a41401
	MOVW	F4, R5			// 85b41401
	MOVV	R4, F5			// 85a81401

#### Additional Notable Feature Updates
- Support for go modules in Kubernetes Core.
- Continued preparation for cloud provider extraction and code organization.  The cloud provider code has been moved to kubernetes/legacy-cloud-providers for easier removal later and external consumption.
- Kubectl [get and describe](https://github.com/kubernetes/enhancements/issues/515) now works with extensions