allows this sysctl in `v1.29+` versions of the baseline and restricted policies. ([#121240](https://github.com/kubernetes/kubernetes/pull/121240), [@HirazawaUi](https://github.com/HirazawaUi))
- `kubelet` now allows pods to use the `net.ipv4.tcp_keepalive_time` sysctl by default
  and the minimal kernel version is 4.5; Pod Security Admission allows this sysctl

- Added "general", "baseline", and "restricted" debugging profiles for kubectl debug. ([#114280](https://github.com/kubernetes/kubernetes/pull/114280), [@sding3](https://github.com/sding3)) [SIG CLI]

- Kube-apiserver: when the Alpha `UserNamespacesPodSecurityStandards` feature gate is enabled, Pod Security Admission enforcement of the baseline policy now allows `procMount: Unmasked` for user namespace pods that set `hostUsers: false`. ([#126163](https://github.com/kubernetes/kubernetes/pull/126163), [@haircommander](https://github.com/haircommander))

  when the kernel version was 4.15 or higher. With the kernel 4.15 the sysctl became namespaced.
  Pod Security admission allowed these sysctl in v1.32+ versions of the baseline and restricted policies. ([#127489](https://github.com/kubernetes/kubernetes/pull/127489), [@pacoxu](https://github.com/pacoxu)) [SIG Auth, Network and Node]

- Stopped removing the CSI JSON file if the volume was already mounted during subsequent errors. ([#131311](https://github.com/kubernetes/kubernetes/pull/131311), [@gnufied](https://github.com/gnufied))

* **[beta]** Introduces an API for clients to request TLS certificates from the API server. See the [tutorial](https://kubernetes.io/docs/tasks/tls/managing-tls-in-a-cluster).