- Disabled reading of disk geometry before calling expansion for ext and xfs filesystems. ([#131568](https://github.com/kubernetes/kubernetes/pull/131568), [@gnufied](https://github.com/gnufied))

			c.Lock()
			defer c.Unlock()
			c.state = srState{}
			c.enabled = false
		}
		return err
	}

	// attempt to read just the version key in the state file to ensure we
	// are reading a compatible version.
	var ver struct {
		Version int `json:"version"`
	}
	err = json.Unmarshal(buf, &ver)
	if err != nil {
		return err
	}
	if ver.Version != srStateFormatVersion1 {

- Fixed file permission issues that happened during update of `Secret`/`ConfigMap`/`projected volume` when `fsGroup` is used. The problem caused a race condition where application gets intermittent permission denied error when reading files that were just updated, before the correct permissions were applied. ([#114464](https://github.com/kubernetes/kubernetes/pull/114464), [@tsaarni](https://github.com/tsaarni))

### API Change

- 'ACTION REQUIRED: The Dynamic Resource Allocation (DRA) driver's DaemonSet
  must be deployed with a service account that enables writing ResourceSlice
  and reading ResourceClaim objects.'
   ([#125163](https://github.com/kubernetes/kubernetes/pull/125163), [@pohly](https://github.com/pohly)) [SIG Auth, Node and Testing]

is done for the related RBAC rules. The old format is now DEPRECATED and will be removed after the feature graduates to GA. When writing the ConfigMap kubeadm (init, upgrade apply) will respect the value of UnversionedKubeletConfigMap, while when reading it (join, reset, upgrade), it would attempt to use new format first and fallback to the legacy format if needed. ([#105741](https://github.com/kubernetes/kubernetes/pull/105741), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle and...

* Add fallbacks to ARM API when getting empty node IP from Azure IMDS ([#69077](https://github.com/kubernetes/kubernetes/pull/69077), [@feiskyer](https://github.com/feiskyer))
* Deduplicate PATH items when reading plugins. ([#69089](https://github.com/kubernetes/kubernetes/pull/69089), [@soltysh](https://github.com/soltysh))

CustomResourceDefinitions also have new support for defaulting, with defaults specified using the `default` keyword in the OpenAPI validation schema. Defaults are set for unspecified fields in an object sent to the API, and when reading from etcd.

Defaulting will be available as alpha in Kubernetes 1.15 and requires structural schemas.

#### CustomResourceDefinition OpenAPI Publishing

16FE5..16FEF  ; disallowed                             # NA   <reserved-16FE5>..<reserved-16FEF>
16FF0..16FF1  ; valid                                  # 13.0 VIETNAMESE ALTERNATE READING MARK CA..VIETNAMESE ALTERNATE READING MARK NHAY
16FF2..16FFF  ; disallowed                             # NA   <reserved-16FF2>..<reserved-16FFF>

* Get public IP for Azure vmss nodes. ([#68498](https://github.com/kubernetes/kubernetes/pull/68498), [@feiskyer](https://github.com/feiskyer))
* Deduplicate PATH items when reading plugins. ([#69170](https://github.com/kubernetes/kubernetes/pull/69170), [@soltysh](https://github.com/soltysh))



# v1.12.0

[Documentation](https://docs.k8s.io)

## Downloads for v1.12.0

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