- `kube-proxy` now accepts the `ContextualLogging`, `LoggingAlphaOptions`,
  `LoggingBetaOptions` ([#115233](https://github.com/kubernetes/kubernetes/pull/115233), [@pohly](https://github.com/pohly))
- `kube-scheduler`: Optimized implementation of null `labelSelector` in topology spreading. ([#116607](https://github.com/kubernetes/kubernetes/pull/116607), [@alculquicondor](https://github.com/alculquicondor))

- Client-go: add new histogram metric to record the size of the requests and responses. ([#108296](https://github.com/kubernetes/kubernetes/pull/108296), [@aojea](https://github.com/aojea))
- CycleState is now optimized for "write once and read many times". ([#108724](https://github.com/kubernetes/kubernetes/pull/108724), [@sanposhiho](https://github.com/sanposhiho))

- Cleanup: removed `getStorageAccountName` warning messages.
   ([#121983](https://github.com/kubernetes/kubernetes/pull/121983), [@andyzhangx](https://github.com/andyzhangx))

  for the nftables-specific config; you will need to use a config file if
  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