- Apiserver adds two new metrics `etcd_requests_total` and `etcd_request_errors_total` that allow users to monitor requests to etcd storage, split by operation and resource type. ([#117222](https://github.com/kubernetes/kubernetes/pull/117222), [@iyear](https://github.com/iyear)) [SIG API Machinery]

* CRDs support metadata.generation and implement spec/status split ([#50764](https://github.com/kubernetes/kubernetes/pull/50764), [@nikhita](https://github.com/nikhita))

- Text logging in Kubernetes components now uses [textlogger](https://pkg.go.dev/k8s.io/klog/v2@v2.120.0/textlogger). The same split streams of info and error log entries with buffering of info entries is now also supported for text output (off by default, alpha feature). Previously, this was only supported for JSON. Performance is better also without split streams. ([#114672](https://github.com/kubernetes/kubernetes/pull/114672), [@pohly](https://github.com/pohly))

- Added support for split image filesystem in kubelet. ([#120616](https://github.com/kubernetes/kubernetes/pull/120616), [@kannon92](https://github.com/kannon92))