- Fixed the wrong hierarchical structure for both the child span and the parent span (i.e. `SerializeObject` and `List`). In the past, some children's spans appeared parallel to their parents. ([#127551](https://github.com/kubernetes/kubernetes/pull/127551), [@carlory](https://github.com/carlory)) [SIG API Machinery and Instrumentation]...

- API Server Tracing now includes a variety of new spans and span events. ([#113172](https://github.com/kubernetes/kubernetes/pull/113172), [@dashpole](https://github.com/dashpole)) [SIG API Machinery, Architecture, Auth, Instrumentation, Network, Node and Scheduling]

### **Network**

#### **IPv6**

*   [alpha] IPv6 support has been added. Notable IPv6 support details include:
    *   Support for IPv6-only Kubernetes cluster deployments. **<span style="text-decoration:underline;">Note:</span>** This feature does not provide dual-stack support.
    *   Support for IPv6 Kubernetes control and data planes.
    *   Support for Kubernetes IPv6 cluster deployments using kubeadm.

status reflects the aggregate status across all underlying cluster
jobs.

#### [alpha] Federated Horizontal Pod Autoscaling (HPA)

Federated HPAs are similar to the traditional Kubernetes HPAs, except
that they span multiple clusters. Creating a Federated HPA targeting
multiple clusters ensures that cluster-level autoscalers are
consistently deployed across those clusters, and dynamically managed

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