- Removes cAdvisor JSON metrics (/stats/container, /stats/<podname>/<containername>, /stats/<namespace>/<podname>/<poduid>/<containername>) from the kubelet. ([#99236](https://github.com/kubernetes/kubernetes/pull/99236), [@pacoxu](https://github.com/pacoxu))

// NodeSpec describes the attributes that a node is created with.
message NodeSpec {
  // PodCIDR represents the pod IP range assigned to the node.
  // +optional
  optional string podCIDR = 1;

  // podCIDRs represents the IP ranges assigned to the node for usage by Pods on that node. If this
  // field is specified, the 0th entry must match the podCIDR field. It may contain at most 1 value for
  // each of IPv4 and IPv6.
  // +optional

### Other (Bug, Cleanup or Flake)

- Fixed a regression with clients prior to 1.15 not being able to update podIP in pod status, or podCIDR in node spec, against >= 1.16 API servers ([#88505](https://github.com/kubernetes/kubernetes/pull/88505), [@liggitt](https://github.com/liggitt)) [SIG Apps and Network]

## Changelog since v1.17.3

## Changes by Kind

### API Change

- Fixes a regression with clients prior to 1.15 not being able to update podIP in pod status, or podCIDR in node spec, against >= 1.16 API servers ([#88505](https://github.com/kubernetes/kubernetes/pull/88505), [@liggitt](https://github.com/liggitt)) [SIG Apps and Network]

### Other (Bug, Cleanup or Flake)

- Enabled traces for KMSv2 encrypt/decrypt operations. ([#121095](https://github.com/kubernetes/kubernetes/pull/121095), [@aramase](https://github.com/aramase))
- Fixed `kube-proxy` panicking on exit when the `Node` object changed its `PodCIDR`. ([#120375](https://github.com/kubernetes/kubernetes/pull/120375), [@pegasas](https://github.com/pegasas))

  or required. ([#124553](https://github.com/kubernetes/kubernetes/pull/124553), [@pmalek](https://github.com/pmalek))
- Fixed a 1.30.0 regression in openapi descriptions of `PodIP.IP`  and `HostIP.IP` fields to mark the fields used as keys in those lists as required. ([#126057](https://github.com/kubernetes/kubernetes/pull/126057), [@thockin](https://github.com/thockin))

## Changelog since v1.16.7

## Changes by Kind

### API Change

- Fixes a regression with clients prior to 1.15 not being able to update podIP in pod status, or podCIDR in node spec, against >= 1.16 API servers ([#88505](https://github.com/kubernetes/kubernetes/pull/88505), [@liggitt](https://github.com/liggitt)) [SIG Apps and Network]

### Other (Bug, Cleanup or Flake)

## Changelog since v1.30.4

## Changes by Kind

### API Change

- Fixes a regression in openapi descriptions of PodIP.IP  and HostIP.IP fields to mark the fields used as keys in those lists as required. ([#126666](https://github.com/kubernetes/kubernetes/pull/126666), [@thockin](https://github.com/thockin)) [SIG API Machinery]

### Feature

#### Photon
* Fix photon controller plugin to construct with correct PdID ([#37167](https://github.com/kubernetes/kubernetes/pull/37167), [@luomiao](https://github.com/luomiao))

#### rbd

- Kubelet metrics have been changed to buckets. 
  For example the exec/{podNamespace}/{podID}/{containerName} is now just exec. ([#87913](https://github.com/kubernetes/kubernetes/pull/87913), [@cheftako](https://github.com/cheftako)) [SIG Node]