TODO: This document was manually maintained so might be incomplete. The automation effort is tracked in https://github.com/kubernetes/client-go/issues/234. Changes in `k8s.io/api` and `k8s.io/apimachinery` are mentioned here because `k8s.io/client-go` depends on them. # v6.0.0 **Breaking Changes:** * If you upgrade your client-go libs and use the `AppsV1() or Apps()` interface, please note that the default garbage collection behavior is changed. * [https://github.com/kubernetes/kubernetes/pull/55148](https://github.com/kubernetes/kubernetes/pull/55148) * Swagger 1.2 retriever `DiscoveryClient.SwaggerSchema` was removed from the discovery client * [https://github.com/kubernetes/kubernetes/pull/53441](https://github.com/kubernetes/kubernetes/pull/53441) * Informers got a NewFilteredSharedInformerFactory to e.g. filter by namespace * [https://github.com/kubernetes/kubernetes/pull/54660](https://github.com/kubernetes/kubernetes/pull/54660) * [k8s.io/api] The dynamic admission webhook is split into two kinds, mutating and validating. The kinds have changed completely and old code must be ported to `admissionregistration.k8s.io/v1beta1` - `MutatingWebhookConfiguration` and `ValidatingWebhookConfiguration` * [https://github.com/kubernetes/kubernetes/pull/55282](https://github.com/kubernetes/kubernetes/pull/55282) * [k8s.io/api] Renamed `core/v1.ScaleIOVolumeSource` to `ScaleIOPersistentVolumeSource` * [https://github.com/kubernetes/kubernetes/pull/54013](https://github.com/kubernetes/kubernetes/pull/54013) * [k8s.io/api] Renamed `core/v1.RBDVolumeSource` to `RBDPersistentVolumeSource` * [https://github.com/kubernetes/kubernetes/pull/54302](https://github.com/kubernetes/kubernetes/pull/54302) * [k8s.io/api] Removed `core/v1.CreatedByAnnotation` * [https://github.com/kubernetes/kubernetes/pull/54445](https://github.com/kubernetes/kubernetes/pull/54445) * [k8s.io/api] Renamed `core/v1.StorageMediumHugepages` to `StorageMediumHugePages` * [https://github.com/kubernetes/kubernetes/pull/54748](https://github.com/kubernetes/kubernetes/pull/54748) * [k8s.io/api] `core/v1.Taint.TimeAdded` became a pointer * [https://github.com/kubernetes/kubernetes/pull/43016](https://github.com/kubernetes/kubernetes/pull/43016) * [k8s.io/api] `core/v1.DefaultHardPodAffinitySymmetricWeight` type changed from int to int32 * [https://github.com/kubernetes/kubernetes/pull/53850](https://github.com/kubernetes/kubernetes/pull/53850) * [k8s.io/apimachinery] `ObjectCopier` interface was removed (requires switch to new generators with DeepCopy methods) * [https://github.com/kubernetes/kubernetes/pull/53525](https://github.com/kubernetes/kubernetes/pull/53525) **New Features:** * Certificate manager was moved from kubelet to `k8s.io/client-go/util/certificates` * [https://github.com/kubernetes/kubernetes/pull/49654](https://github.com/kubernetes/kubernetes/pull/49654) * [k8s.io/api] Workloads api types are promoted to `apps/v1` version * [https://github.com/kubernetes/kubernetes/pull/53679](https://github.com/kubernetes/kubernetes/pull/53679) * [k8s.io/api] Added `storage.k8s.io/v1alpha1` API group * [https://github.com/kubernetes/kubernetes/pull/54463](https://github.com/kubernetes/kubernetes/pull/54463) * [k8s.io/api] Added support for conditions in StatefulSet status * [https://github.com/kubernetes/kubernetes/pull/55268](https://github.com/kubernetes/kubernetes/pull/55268) * [k8s.io/api] Added support for conditions in DaemonSet status * [https://github.com/kubernetes/kubernetes/pull/55272](https://github.com/kubernetes/kubernetes/pull/55272) * [k8s.io/apimachinery] Added polymorphic scale client in `k8s.io/client-go/scale`, which supports scaling of resources in arbitrary API groups * [https://github.com/kubernetes/kubernetes/pull/53743](https://github.com/kubernetes/kubernetes/pull/53743) * [k8s.io/apimachinery] `meta.MetadataAccessor` got API chunking support * [https://github.com/kubernetes/kubernetes/pull/53768](https://github.com/kubernetes/kubernetes/pull/53768) * [k8s.io/apimachinery] `unstructured.Unstructured` got getters and setters * [https://github.com/kubernetes/kubernetes/pull/51940](https://github.com/kubernetes/kubernetes/pull/51940) **Bug fixes and Improvements:** * The body in glog output is not truncated with log level 10 * [https://github.com/kubernetes/kubernetes/pull/54801](https://github.com/kubernetes/kubernetes/pull/54801) * [k8s.io/api] Unset `creationTimestamp` field is output as null if encoded from an unstructured object * [https://github.com/kubernetes/kubernetes/pull/53464](https://github.com/kubernetes/kubernetes/pull/53464) * [k8s.io/apimachinery] Redirect behavior is restored for proxy subresources * [https://github.com/kubernetes/kubernetes/pull/52933](https://github.com/kubernetes/kubernetes/pull/52933) * [k8s.io/apimachinery] Random string generation functions are optimized * [https://github.com/kubernetes/kubernetes/pull/53720](https://github.com/kubernetes/kubernetes/pull/53720) # v5.0.1 Bug fix: picked up a security fix [kubernetes/kubernetes#53443](https://github.com/kubernetes/kubernetes/pull/53443) for `PodSecurityPolicy`. # v5.0.0 **New features:** * Added paging support * [https://github.com/kubernetes/kubernetes/pull/51876](https://github.com/kubernetes/kubernetes/pull/51876) * Added support for client-side spam filtering of events * [https://github.com/kubernetes/kubernetes/pull/47367](https://github.com/kubernetes/kubernetes/pull/47367) * Added support for http etag and caching * [https://github.com/kubernetes/kubernetes/pull/50404](https://github.com/kubernetes/kubernetes/pull/50404) * Added priority queue support to informer cache * [https://github.com/kubernetes/kubernetes/pull/49752](https://github.com/kubernetes/kubernetes/pull/49752) * Added openstack auth provider * [https://github.com/kubernetes/kubernetes/pull/39587](https://github.com/kubernetes/kubernetes/pull/39587) * Added metrics for checking reflector health * [https://github.com/kubernetes/kubernetes/pull/48224](https://github.com/kubernetes/kubernetes/pull/48224) * Client-go now includes the leaderelection package * [https://github.com/kubernetes/kubernetes/pull/39173](https://github.com/kubernetes/kubernetes/pull/39173) **API changes:** * Promoted Autoscaling v2alpha1 to v2beta1 * [https://github.com/kubernetes/kubernetes/pull/50708](https://github.com/kubernetes/kubernetes/pull/50708) * Promoted CronJobs to batch/v1beta1 * [https://github.com/kubernetes/kubernetes/pull/41901](https://github.com/kubernetes/kubernetes/pull/41901) * Promoted rbac.authorization.k8s.io/v1beta1 to rbac.authorization.k8s.io/v1 * [https://github.com/kubernetes/kubernetes/pull/49642](https://github.com/kubernetes/kubernetes/pull/49642) * Added a new API version apps/v1beta2 * [https://github.com/kubernetes/kubernetes/pull/48746](https://github.com/kubernetes/kubernetes/pull/48746) * Added a new API version scheduling/v1alpha1 * [https://github.com/kubernetes/kubernetes/pull/48377](https://github.com/kubernetes/kubernetes/pull/48377) **Breaking changes:** * 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` * [https://github.com/kubernetes/kubernetes/pull/46803](https://github.com/kubernetes/kubernetes/pull/46803) * Enforced explicit references to API group client interfaces in clientsets to avoid ambiguity. * [https://github.com/kubernetes/kubernetes/pull/49370](https://github.com/kubernetes/kubernetes/pull/49370) * 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()`. * [https://github.com/kubernetes/kubernetes/pull/48991](https://github.com/kubernetes/kubernetes/pull/48991) # v4.0.0 No significant changes since v4.0.0-beta.0. # v4.0.0-beta.0 **New features:** * Added OpenAPISchema support in the discovery client * [https://github.com/kubernetes/kubernetes/pull/44531](https://github.com/kubernetes/kubernetes/pull/44531) * 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. * [https://github.com/kubernetes/kubernetes/pull/45838](https://github.com/kubernetes/kubernetes/pull/45838/commits/f88c7725b4f9446c652d160bdcfab7c6201bddea) * Moved the remotecommand package (used by `kubectl exec/attach`) to client-go * [https://github.com/kubernetes/kubernetes/pull/41331](https://github.com/kubernetes/kubernetes/pull/41331) * Added support for following redirects to the SpdyRoundTripper * [https://github.com/kubernetes/kubernetes/pull/44451](https://github.com/kubernetes/kubernetes/pull/44451) * Added Azure Active Directory plugin * [https://github.com/kubernetes/kubernetes/pull/43987](https://github.com/kubernetes/kubernetes/pull/43987) **Usability improvements:** * Added several new examples and reorganized client-go/examples * [Related PRs](https://github.com/kubernetes/kubernetes/commits/release-1.7/staging/src/k8s.io/client-go/examples) **API changes:** * Added networking.k8s.io/v1 API * [https://github.com/kubernetes/kubernetes/pull/39164](https://github.com/kubernetes/kubernetes/pull/39164) * ControllerRevision type added for StatefulSet and DaemonSet history. * [https://github.com/kubernetes/kubernetes/pull/45867](https://github.com/kubernetes/kubernetes/pull/45867) * Added support for initializers * [https://github.com/kubernetes/kubernetes/pull/38058](https://github.com/kubernetes/kubernetes/pull/38058) * Added admissionregistration.k8s.io/v1alpha1 API * [https://github.com/kubernetes/kubernetes/pull/46294](https://github.com/kubernetes/kubernetes/pull/46294) **Breaking changes:** * Moved client-go/util/clock to apimachinery/pkg/util/clock * [https://github.com/kubernetes/kubernetes/pull/45933](https://github.com/kubernetes/kubernetes/pull/45933/commits/8013212db54e95050c622675c6706cce5de42b45) * Some [API helpers](https://github.com/kubernetes/client-go/blob/release-3.0/pkg/api/helpers.go) were removed. * Dynamic client takes GetOptions as an input parameter * [https://github.com/kubernetes/kubernetes/pull/47251](https://github.com/kubernetes/kubernetes/pull/47251) **Bug fixes:** * 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) * GCP auth plugin no longer overwrites existing Authorization headers. [https://github.com/kubernetes/kubernetes/pull/45575](https://github.com/kubernetes/kubernetes/pull/45575) # v3.0.0 Bug fixes: * 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)