* Build test targets for all server platforms ([#51873](https://github.com/kubernetes/kubernetes/pull/51873), [@luxas](https://github.com/luxas))

### Feature

- Added KMS `v2alpha1` API. ([#110201](https://github.com/kubernetes/kubernetes/pull/110201), [@aramase](https://github.com/aramase))

* Build test targets for all server platforms ([#51873](https://github.com/kubernetes/kubernetes/pull/51873), [@luxas](https://github.com/luxas))

* Add SIGCHLD handler to pause container ([#36853](https://github.com/kubernetes/kubernetes/pull/36853), [@verb](https://github.com/verb))
* Populate environment variables from a secrets. ([#39446](https://github.com/kubernetes/kubernetes/pull/39446), [@fraenkel](https://github.com/fraenkel))

* Added all kinds of resource objects' statuses in HPA description. ([#59609](https://github.com/kubernetes/kubernetes/pull/59609), [@zhangxiaoyu-zidif](https://github.com/zhangxiaoyu-zidif))
* Implemented preemption for extender with a verb and new interface ([#58717](https://github.com/kubernetes/kubernetes/pull/58717), [@resouer](https://github.com/resouer))

  
  Before upgrading to 1.35, ensure any custom ClusterRoles and Roles intended to grant `pods/exec`, `pods/attach`, or `pods/portforward` permission include the `create` verb. ([#134577](https://github.com/kubernetes/kubernetes/pull/134577), [@seans3](https://github.com/seans3)) [SIG API Machinery, Auth, Node and Testing]

- Pod spread constraints have been added in alpha. You can use these constraints to control how Pods are spread across the cluster among failure-domains. ([#77327](https://github.com/kubernetes/kubernetes/pull/77327), [#77760](...

  you want to set the equivalent of any of the `--iptables-xxx` options.)
  
  As this code is still very new, it has not been heavily optimized yet;
  while it is expected to _eventually_ have better performance than the
  iptables backend, very little performance testing has been done so far. ([#121046](https://github.com/kubernetes/kubernetes/pull/121046), [@danwinship](https://github.com/danwinship))

  If the API server does not support or allow streaming, then `client-go` falls back to fetching the collection using the **list** API verb. ([#127388](https://github.com/kubernetes/kubernetes/pull/127388), [@p0lyn0mial](https://github.com/p0lyn0mial)) [SIG API Machinery and Testing]

### Feature

- A new client side metric `rest_client_request_retries_total` has been added that tracks the number of retries sent to the server, partitioned by status code, verb and host ([#108396](https://github.com/kubernetes/kubernetes/pull/108396), [@tkashem](https://github.com/tkashem))