* The informer code-generator now allows specifying a custom resync period for certain informer types and uses the default resync period if none is specified.
* The OpenStack auth config from is now read from the client config. If the client config is not available, it falls back to reading from the environment variables.
* The in-tree support for openstack credentials is now deprecated. Please use the `client-keystone-auth` from the cloud-provider-openstack repository. Details on how to use this new capability is documented [here](https://github.com/kubernetes/cloud-provider-openstack/blob/master/docs/using-client-keystone-auth.md)
* 406 mime-type errors are now tolerated while attempting to load new openapi schema. This improves compatibility with older servers when creating/updating API objects.
* Support for `alpha.kubernetes.io/nvidia-gpu` resource which was deprecated in 1.10 is removed. Please use the resource exposed by `DevicePlugins` instead (`nvidia.com/gpu`).
* Alpha annotation for `PersistentVolume` node affinity has been removed. Update your `PersistentVolume`s to use the beta `PersistentVolume.nodeAffinity` field before upgrading.
*`Node.Spec.ConfigSource.ConfigMap.KubeletConfigKey` must be specified when using dynamic Kubelet config to tell the Kubelet which key of the `ConfigMap` identifies its config file.
* The `GitRepo` volume type is deprecated. To provision a container with a git repo, mount an `EmptyDir` into an `InitContainer` that clones the repo using git, then mount the `EmptyDir` into the Pod's container.
* The Sysctls experimental feature has been promoted to beta (enabled by default via the `Sysctls` feature flag). `PodSecurityPolicy` and `Pod` objects now have fields for specifying and controlling sysctls. Alpha sysctl annotations will be ignored by 1.11+ kubelets. All alpha sysctl annotations in existing deployments must be converted to API fields to be effective.
* The annotation `service.alpha.kubernetes.io/tolerate-unready-endpoints` is deprecated. Users should use `Service.spec.publishNotReadyAddresses` instead.
* Default mount propagation has changed from `HostToContainer` (`rslave` in Linux terminology) to `None` (`private`) to match the behavior in 1.9 and earlier releases. `HostToContainer` as a default caused regressions in some pods.
* Google Cloud Service Account email addresses can now be used in RBAC Role bindings since the default scopes now include the `userinfo.email` scope. This is a breaking change if the numeric uniqueIDs of the Google service accounts were being used in RBAC role bindings. The behavior can be overridden by explicitly specifying the scope values as comma-separated string in the `users[*].config.scopes` field in the `KUBECONFIG` file.
* [k8s.io/api] `VolumeScheduling` and `LocalPersistentVolume` features are beta and enabled by default. The PersistentVolume NodeAffinity alpha annotation is deprecated and will be removed in a future release.
* [k8s.io/api] The `PodSecurityPolicy` API has been moved to the `policy/v1beta1` API group. The `PodSecurityPolicy` API in the `extensions/v1beta1` API group is deprecated and will be removed in a future release.
* [k8s.io/api] `v1.Pod` now has a field `ShareProcessNamespace` to configure whether a single process namespace should be shared between all containers in a pod. This feature is in alpha preview.
* [k8s.io/apimachinery] The `meta.k8s.io/v1alpha1` objects for retrieving tabular responses from the server (`Table`) or fetching just the `ObjectMeta` for an object (as `PartialObjectMetadata`) are now beta as part of `meta.k8s.io/v1beta1`. Clients may request alternate representations of normal Kubernetes objects by passing an `Accept` header like `application/json;as=Table;g=meta.k8s.io;v=v1beta1` or `application/json;as=PartialObjectMetadata;g=meta.k8s.io;v1=v1beta1`. Older servers will ignore this representation or return an error if it is not available. Clients may request fallback to the normal object by adding a non-qualified mime-type to their `Accept` header like `application/json` - the server will then respond with either the alternate representation if it is supported or the fallback mime-type which is the normal object response.
* Moved pkg/api and pkg/apis to [k8s.io/api](https://github.com/kubernetes/api). Other kubernetes repositories also import types from there, so they are composable with client-go.
* Removed helper functions in pkg/api and pkg/apis. They are planned to be exported in other repos. The issue is tracked [here](https://github.com/kubernetes/kubernetes/issues/48209#issuecomment-314537745). During the transition, you'll have to copy the helper functions to your projects.
* The discovery client now fetches the protobuf encoded OpenAPI schema and returns `openapi_v2.Document`
* The generic RESTClient type (`k8s.io/client-go/rest`) no longer exposes `LabelSelectorParam` or `FieldSelectorParam` methods - use `VersionedParams` with `metav1.ListOptions` instead. The `UintParam` method has been removed. The `timeout` parameter will no longer cause an error when using `Param()`.
* Added mutation cache filter: MutationCache is able to take the result of update operations and stores them in an LRU that can be used to provide a more current view of a requested object.
* PortForwarder: don't log an error if net.Listen fails. [https://github.com/kubernetes/kubernetes/pull/44636](https://github.com/kubernetes/kubernetes/pull/44636)
* oidc auth plugin not to override the Auth header if it's already exits. [https://github.com/kubernetes/kubernetes/pull/45529](https://github.com/kubernetes/kubernetes/pull/45529)
* The --namespace flag is now honored for in-cluster clients that have an empty configuration. [https://github.com/kubernetes/kubernetes/pull/46299](https://github.com/kubernetes/kubernetes/pull/46299)
* Use OS-specific libs when computing client User-Agent in kubectl, etc. (https://github.com/kubernetes/kubernetes/pull/44423)
* kubectl commands run inside a pod using a kubeconfig file now use the namespace specified in the kubeconfig file, instead of using the pod namespace. If no kubeconfig file is used, or the kubeconfig does not specify a namespace, the pod namespace is still used as a fallback. (https://github.com/kubernetes/kubernetes/pull/44570)
* Restored the ability of kubectl running inside a pod to consume resource files specifying a different namespace than the one the pod is running in. (https://github.com/kubernetes/kubernetes/pull/44862)
# v3.0.0-beta.0
* Added dependency on k8s.io/apimachinery. The impacts include changing import path of API objects like `ListOptions` from `k8s.io/client-go/pkg/api/v1` to `k8s.io/apimachinery/pkg/apis/meta/v1`.
* Added generated listers (listers/) and informers (informers/)
* Kubernetes API changes:
* Added client support for:
* authentication/v1
* authorization/v1
* autoscaling/v2alpha1
* rbac/v1beta1
* settings/v1alpha1
* storage/v1
* Changed client support for:
* certificates from v1alpha1 to v1beta1
* policy from v1alpha1 to v1beta1
* Deleted client support for:
* extensions/v1beta1#Job
* CHANGED: pass typed options to dynamic client (https://github.com/kubernetes/kubernetes/pull/41887)
# v2.0.0
* Included bug fixes in k8s.io/kuberentes release-1.5 branch, up to commit
bde8578d9675129b7a2aa08f1b825ec6cc0f3420
# v2.0.0-alpha.1
* Removed top-level version folder (e.g., 1.4 and 1.5), switching to maintaining separate versions
in separate branches.
* Clientset supported multiple versions per API group
* Added ThirdPartyResources example
* Kubernetes API changes
* Apps API group graduated to v1beta1
* Policy API group graduated to v1beta1
* Added support for batch/v2alpha1/cronjob
* Renamed PetSet to StatefulSet
# v1.5.0
* Included the auth plugin (https://github.com/kubernetes/kubernetes/pull/33334)
* Added timeout field to RESTClient config (https://github.com/kubernetes/kubernetes/pull/33958)
