- Kube-apiserver: fixes a potential crash serving CustomResourceDefinitions that combine an invalid schema and CEL validation rules. ([#126167](https://github.com/kubernetes/kubernetes/pull/126167), [@cici37](https://github.com/cici37)) [SIG API Machinery and Testing]

- Kube-apiserver: fixes a 1.27+ regression in watch stability by serving watch requests without a resourceVersion from the watch cache by default, as in <1.27 (disabling the change in #115096 by default). This mitigates the impact of an etcd watch bug (https://github.com/etcd-io/etcd/pull/17555). If the 1.27 change in...

- Kube-apiserver: fixes a potential crash serving CustomResourceDefinitions that combine an invalid schema and CEL validation rules. ([#126167](https://github.com/kubernetes/kubernetes/pull/126167), [@cici37](https://github.com/cici37)) [SIG API Machinery and Testing]

          <name>id</name>
          <type>String</type>
          <required>true</required>
          <description>The unique id for this report set, to be used during POM inheritance and profile injection
            for merging of report sets.
          </description>
          <defaultValue>default</defaultValue>
        </field>
        <field>
          <name>reports</name>
          <version>4.0.0+</version>

- Remove deprecated feature gates `ValidateProxyRedirects` and `StreamingProxyRedirects` ([#106830](https://github.com/kubernetes/kubernetes/pull/106830), [@pacoxu](https://github.com/pacoxu))
- Remove insecure serving configuration from cloud-provider package, which is consumed by cloud-controller-managers. ([#108953](https://github.com/kubernetes/kubernetes/pull/108953), [@nckturner](https://github.com/nckturner))

- kube-controller-manager and cloud-controller-manager now hold generated serving certificates in-memory unless a writeable location is specified with --cert-dir ([#69884](https://github.com/kubernetes/kubernetes/pull/69884), [@liggitt](https://github.com/liggitt))

* Warn user when using `apply` on a resource lacking the `LastAppliedConfig` annotation ([#36672](https://github.com/kubernetes/kubernetes/pull/36672), [@ymqytw](https://github.com/ymqytw))
* PATCH (i.e. apply and edit) now supports merging lists of primitives ([#38665](https://github.com/kubernetes/kubernetes/pull/38665), [@ymqytw](https://github.com/ymqytw))

## Changelog since v1.21.8

## Changes by Kind

### Feature

- Fix printing resources with int64 fields ([#110408](https://github.com/kubernetes/kubernetes/pull/110408), [@tkashem](https://github.com/tkashem)) [SIG API Machinery]
- Fix spurious kube-apiserver log warnings related to openapi v3 merging when creating or modifying CustomResourceDefinition objects ([#109880](https://github.com/kubernetes/kubernetes/pull/109880), [@Jefftree](https://github.com/Jefftree)) [SIG API Machinery and Testing]

([#57902](https://github.com/kubernetes/kubernetes/pull/57902), [@kawych](https://github.com/kawych))

* On cluster provision or upgrade, kubeadm now generates certs and secures all connections to the etcd static-pod with mTLS. This includes the etcd serving cert, the etcd peer cert, and the apiserver etcd client cert. Flags and hostMounts are added to the etcd and apiserver static-pods to load these certs. For connections to etcd, https is now used in favor of http. ([#57415](https://github.com/kube...