engineering

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enterprises

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epson

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equipment

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- Kubeadm: upgrade supports fallback to the nearest known etcd version if an unknown k8s version is passed ([#88373](https://github.com/kubernetes/kubernetes/pull/88373), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]

   * 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

#### kube-proxy
* Features:

  * ratelimit runs of iptables by sync-period flags ([#46266](https://github.com/kubernetes/kubernetes/pull/46266), [@thockin](https://github.com/thockin))

### Apps

The core workloads API, which is composed of the DaemonSet, Deployment, ReplicaSet, and StatefulSet kinds, has been promoted to GA stability in the apps/v1 group version. As such, the apps/v1beta2 group version is deprecated, and all new code should use the kinds in the apps/v1 group version.

### Auth

`kubeadm`: will now allow deploying a kubelet that is 3 versions older than the version of `kubeadm` (N-3). This aligns with the recent change made by SIG Architecture that extends the support skew between the control plane and kubelets. Tolerate this new kubelet skew for the commands `init`, `join` and `upgrade`. Note that if the `kubeadm` user applies a control plane version that is older than the `kubeadm` version (N-1 maximum) then the skew between the kubelet and control plane would become a...

- Removed a warning around Linux user namespaces and kernel version. If the feature gate `UserNamespacesSupport` was enabled, the kubelet previously warned when detecting a Linux kernel version earlier than 6.3.0. User namespace support on Linux typically does still need kernel 6.3 or newer, but it can work in older kernels too. ([#131784](https://github.com/kubernetes/kubernetes/pull/131784),...

### 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`.

- Kubectl version changed to write a warning message to stderr if the client and server version difference exceeds the supported version skew of +/-1 minor version. ([#98250](https://github.com/kubernetes/kubernetes/pull/98250), [@brianpursley](https://github.com/brianpursley)) [SIG CLI]

  for more details.) ([#129653](https://github.com/kubernetes/kubernetes/pull/129653), [@danwinship](https://github.com/danwinship)) [SIG Network]
- Updated `/version` response to report binary version information separate from compatibility version ([#130019](https://github.com/kubernetes/kubernetes/pull/130019), [@yongruilin](https://github.com/yongruilin)) [SIG API Machinery, Architecture, Release and Testing]

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