([#123413](https://github.com/kubernetes/kubernetes/pull/123413), [@seans3](https://github.com/seans3))
- A new flag called `custom` has been introduced in `kubectl debug`, allowing users to customize pre-defined profiles. ([#120346](https://github.com/kubernetes/kubernetes/pull/120346), [@ardaguclu](https://github.com/ardaguclu))

pkg reflect, method (Value) Slice3(int, int, int) Value
pkg runtime, type MemStats struct, GCSys uint64
pkg runtime, type MemStats struct, OtherSys uint64
pkg runtime/debug, func SetMaxStack(int) int
pkg runtime/debug, func SetMaxThreads(int) int
pkg sort, func Stable(Interface)
pkg strings, func IndexByte(string, uint8) int
pkg sync/atomic, func SwapInt32(*int32, int32) int32

- Kubelet now exposes `/debug/flags/v` to allow dynamically setting glog logging level.  For example, to change glog level to 3, you only have to send a PUT request like `curl -X PUT http://127.0.0.1:8080/debug/flags/v -d "3"`. ([#64601](https://github.com/kubernetes/kubernetes/pull/64601), [@hzxuzhonghu](https://github.com/hzxuzhonghu))

#### Audit Logging
* [alpha] Advanced Auditing enhances the Kubernetes API [audit logging](https://kubernetes.io/docs/tasks/debug/debug-cluster/audit/#log-backend) capabilities through a customizable policy, pluggable audit backends, and richer audit data.

#### Encryption at Rest

- Added OCI VolumeSource Container Runtime Interface API fields and types. ([#125659](https://github.com/kubernetes/kubernetes/pull/125659), [@saschagrunert](https://github.com/saschagrunert)) [SIG Node]
- Added `--keep-*` flags to `kubectl debug`, which enables to control the removal

### SIG AWS

  certificate.' ([#119859](https://github.com/kubernetes/kubernetes/pull/119859), [@SataQiu](https://github.com/SataQiu))
- Added `CAP_NET_RAW` to netadmin debug profile and removed privileges when debugging nodes. ([#118647](https://github.com/kubernetes/kubernetes/pull/118647), [@mochizuki875](https://github.com/mochizuki875))

- LoadBalancerIPMode feature was marked as GA. ([#127348](https://github.com/kubernetes/kubernetes/pull/127348), [@RyanAoh](https://github.com/RyanAoh)) [SIG Apps, Network and Testing]
- Locked the custom profiling feature in `kubectl debug` to true. ([#127187](https://github.com/kubernetes/kubernetes/pull/127187), [@ardaguclu](https://github.com/ardaguclu)) [SIG CLI and Testing]
- Output for the `ScalingReplicaSet` event has changed from:

subresources wildcard matching, such as "resource/", "/subresource","*". ([#55306](https://github.com/kubernetes/kubernetes/pull/55306), [@hzxuzhonghu](https://github.com/hzxuzhonghu))

* [Auditing](https://kubernetes.io/docs/tasks/debug/debug-cluster/audit/) is now enabled behind a featureGate in kubeadm. A user can supply their own audit policy with configuration option as well as a place for the audit logs to live. If no policy is supplied a default policy will be provided. The default...

- Improved `kubectl run` and `kubectl debug` error messages upon attaching failures. ([#110764](https://github.com/kubernetes/kubernetes/pull/110764), [@soltysh](https://github.com/soltysh))