* You do not need to adjust this flag on Kubelet:  there was no authorization for the Kubelet APIs in 1.4.
* batch/v2alpha1.ScheduledJob has been renamed, use batch/v2alpha1.CronJob instead ([#36021](https://github.com/kubernetes/kubernetes/pull/36021), [@soltysh](https://github.com/soltysh))
* PetSet has been renamed to StatefulSet.
  If you have existing PetSets, **you must perform extra migration steps** both

- Fixed service issues with named targetPort for Windows ([#70076](https://github.com/kubernetes/kubernetes/pull/70076), [@feiskyer](https://github.com/feiskyer))
- Handle Windows named pipes in host mounts. ([#69484](https://github.com/kubernetes/kubernetes/pull/69484), [@ddebroy](https://github.com/ddebroy))

  * The version of InfluxDB is bumped from 0.8 to 0.9 which means storage schema
change. More details [here](https://docs.influxdata.com/influxdb/v0.9/administration/upgrading/).
  * We have renamed “minions” to “nodes”.  If you were specifying NUM\_MINIONS or
MINION\_SIZE to kube-up, you should now specify NUM\_NODES or NODE\_SIZE.

### Known Issues

- When scaling down a ReplicaSet, delete doubled up replicas first, where a "doubled up replica" is defined as one that is on the same node as an active replica belonging to a related ReplicaSet.  ReplicaSets are considered "related" if they have a common controller (typically a Deployment). ([#80004](https://github.com/kubernetes/kubernetes/pull/80004), [@Miciah](https://github.com/Miciah))

- github.com/golangplus/testing: [v1.0.0](https://github.com/golangplus/testing/tree/v1.0.0)
- github.com/google/martian: [v2.1.0+incompatible](https://github.com/google/martian/tree/v2.1.0)
- github.com/google/renameio: [v0.1.0](https://github.com/google/renameio/tree/v0.1.0)
- github.com/googleapis/gax-go/v2: [v2.0.5](https://github.com/googleapis/gax-go/tree/v2.0.5)
- github.com/gopherjs/gopherjs: [0766667](https://github.com/gopherjs/gopherjs/tree/0766667)

  - Rename `PreemptionByKubeScheduler` to `PreemptionByScheduler` ([#114623](https://github.com/kubernetes/kubernetes/pull/114623), [@Huang-Wei](https://github.com/Huang-Wei))

- The `NodeConfiguration` kind in the kubeadm v1alpha2 API has been renamed `JoinConfiguration` in v1alpha3 ([#65951](https://github.com/kubernetes/kubernetes/pull/65951), [@luxas](https://github.com/luxas)) Courtesy of SIG Cluster Lifecycle

- '`kubelet_kubelet_credential_provider_plugin_duration` was renamed to `kubelet_credential_provider_plugin_duration`
  and `kubelet_kubelet_credential_provider_plugin_errors` was renamed to `kubelet_credential_provider_plugin_errors`.'
   ([#113754](https://github.com/kubernetes/kubernetes/pull/113754), [@logicalhan](https://github.com/logicalhan))

     - `.extenders[*].httpTimeout` is of type `metav1.Duration`.
     - `.extenders[*].enableHttps` is renamed to `.extenders[*].enableHTTPS`.
   - `RequestedToCapacityRatio` args decoding is case sensitive. All fields are affected.
   - `DefaultPodTopologySpread` plugin is renamed to `SelectorSpread`.
   - `Unreserve` extension point is removed from Profile definition. All `Reserve`

 - Renamed `UpdatePodTolerations` action type to `UpdatePodToleration`.
  Action required for custom plugin developers to update their code to follow the rename. ([#129023](https://github.com/kubernetes/kubernetes/pull/129023), [@zhifei92](https://github.com/zhifei92)) [SIG Scheduling and Testing]