### SIG Instrumentation

* Added prometheus cluster monitoring addon to kube-up. ([#62195](https://github.com/kubernetes/kubernetes/pull/62195), [@serathius](https://github.com/serathius))
* Kubelet now exposes a new endpoint, `/metrics/probes`, which exposes a Prometheus metric containing the liveness and/or readiness probe results for a container. ([#61369](https://github.com/kubernetes/kubernetes/pull/61369), [@rramkumar1](https://github.com/rramkumar1))

**Affected Versions**:
  - kube-apiserver v1.25.0 - v1.25.3
  - kube-apiserver v1.24.0 - v1.24.7
  - kube-apiserver v1.23.0 - v1.23.13

**Affected Versions**:
  - kube-apiserver v1.25.0 - v1.25.3
  - kube-apiserver v1.24.0 - v1.24.7
  - kube-apiserver v1.23.0 - v1.23.13

- DynamicFakeClient now exposes its tracker via a `Tracker()` function ([#100085](https://github.com/kubernetes/kubernetes/pull/100085), [@markusthoemmes](https://github.com/markusthoemmes)) [SIG API Machinery]

- Exposes and sets a default timeout for the SubjectAccessReview client for DelegatingAuthorizationOptions ([#95725](https://github.com/kubernetes/kubernetes/pull/95725), [@p0lyn0mial](https://github.com/p0lyn0mial)) [SIG API Machinery and Cloud Provider]

**Affected Versions**:
  - kube-apiserver v1.25.0 - v1.25.3
  - kube-apiserver v1.24.0 - v1.24.7
  - kube-apiserver v1.23.0 - v1.23.13

* The kube-apiserver has improved behavior for both startup and shutdown sequences and also now exposes `/readyz` for readiness checking. Readyz includes all existing healthz checks but also adds a shutdown check. When a cluster admin initiates a shutdown, the kube-apiserver will try to process existing requests (for the duration of request timeout)...

Special thanks to [@nzig](https://github.com/nzig) for the core implementation and to [@adriangb](https://github.com/adriangb) for the inspiration and idea with [Xpresso](https://github.com/adriangb/xpresso)! 🚀

### Features

* ✨Add support for PEP-593 `Annotated` for specifying dependencies and parameters. PR [#4871](https://github.com/tiangolo/fastapi/pull/4871) by [@nzig](https://github.com/nzig).

- HPA controller exposes the following metrics from the kube-controller-manager. 
  - `metric_computation_duration_seconds`: The time(seconds) that the HPA controller takes to calculate one metric.

- Add `csi_operations_seconds` metric on kubelet that exposes CSI operations duration and status for node CSI operations. ([#98979](https://github.com/kubernetes/kubernetes/pull/98979), [@Jiawei0227](https://github.com/Jiawei0227)) [SIG Instrumentation and Storage]