- `k8s.io/kubernetes` and published components (such as `k8s.io/client-go` and `k8s.io/api`) now contain go module files including dependency version information. See [go-modules](http://git.k8s.io/client-go/INSTALL.md#go-modules) for details on consuming `k8s.io/client-go` using go modules. ([#74877](https://github.com/kubernetes/kubernetes/pull/74877), [@liggitt](https://github.com/liggitt))

#### Apps

### Autoscaling

 - Consuming metrics directly from Heapster is deprecated in favor of
   consuming metrics via an aggregated version of the resource metrics API.

   - In version 1.8, enable this behavior by setting the
     `--horizontal-pod-autoscaler-use-rest-clients` flag to `true`.

- Add Kubernetes Events to the `Kubelet Graceful Shutdown` feature. ([#1010...

- [`KT-67489`](https://youtrack.jetbrains.com/issue/KT-67489) JsPlainObjects Plugin: Method not found when consuming
- [`KT-63607`](https://youtrack.jetbrains.com/issue/KT-63607) Migrate kotlin-power-assert into Kotlin repository

// is the number of flow control bytes available on the stream. Consume returns
// 0, 1, or 2 frames, where the integer return value gives the number of frames
// returned.
//
// If flow control prevents consuming any bytes, this returns (_, _, 0). If
// the entire frame was consumed, this returns (wr, _, 1). Otherwise, this
// returns (consumed, rest, 2), where 'consumed' contains the consumed bytes and

    * This solves a vulnerability that could allow denial of service attacks by using many small multipart fields/files (parts), consuming high CPU and memory.
    * Only applications using forms (e.g. file uploads) could be affected.
    * For most cases, upgrading won't have any breaking changes.

## 0.91.0

### Upgrades

- Fix: skip instance not found when decoupling vmss from lb ([#105836](https...

   * Support kube-master-url flag without kubeconfig

   * Fix concurrent R/Ws in dns.go

   * Fix confusing logging when initialize server

   * Fix printf in cmd/kube-dns/app/server.go

   * Fix version on startup and `--version` flag

   * Support specifying port number for nameserver in stubDomains

- The metric `apiserver_flowcontrol_current_executing_seats` has been introduced as a duplicate of `apiserver_flowcontrol_request_concurrency_in_use` because the latter has a confusing name and will be removed in a later release. ([#118960](https://github.com/kubernetes/kubernetes/pull/118960), [@MikeSpreitzer](https://github.com/MikeSpreitzer)) [SIG API Machinery]

- The metadata.clusterName field is deprecated. This field has always been unwritable and always blank, but its presence is confusing, so we will remove it next release. Out of an abundance of caution, this release we have merely changed the name in the go struct to ensure any accidental client uses are found before complete removal. ([#108717](https://github.com/kubernetes/ku...