- AppArmor profiles can now be configured through fields on the `PodSecurityContext` and container `SecurityContext`. The beta AppArmor annotations are deprecated, and AppArmor status is no longer included in the node ready condition. ([#123435](https://github.com/...

- 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]
- Added "netadmin" debugging profiles for kubectl debug. ([#115712](https://github.com/kubernetes/kubernetes/pull/115712), [@wedaly](https://github.com/wedaly)) [SIG CLI]

- Dockershim security: pod sandbox now always run with `no-new-privileges` and `runtime/default` seccomp profile
  dockershim seccomp: custom profiles can now have smaller seccomp profiles when set at pod level ([#90948](https://github.com/kubernetes/kubernetes/pull/90948), [@pjbgf](https://github.com/pjbgf)) [SIG Node]

#### kube-scheduler:
- A kubescheduler.config.k8s.io/v1alpha2 configuration file version is now accepted, with support for multiple scheduling profiles ([#87628](https://github.com/kubernetes/kubernetes/pull/87628), [@alculquicondor](https://github.com/alculquicondor)) [SIG Scheduling]

- Users can traverse all the pods that are in the scheduler and waiting in the permit stage through method `IterateOverWaitingPods`. In other words,  all waitingPods in scheduler can be obtained from any profiles. Before this commit, each profile could only obtain waitingPods within that profile. ([#124926](https://github.com/kubernetes/kubernetes/pull/124926), [@kerthcet](https://github.com/kerthcet)) [SIG Scheduling]

* kubectl has gained new --profile and --profile-output options to output go profiles ([#68681](https://github.com/kubernetes/kubernetes/pull/68681), [@dlespiau](https://github.com/dlespiau))

- Record requests rejected with 429 in the apiserver_request_total metric ([#108927](https://github.com/kubernetes/kubernetes/pull/108927), [@wojtek-t](https://github.com/wojtek-t))
- Removed validation if AppArmor profiles are loaded on the local node. This should be handled by the container runtime. ([#97966](https://github.com/kubernetes/kubernetes/pull/97966), [@saschagrunert](https://github.com/saschagrunert))