- kubeadm: switched the kube-scheduler static Pod to use the endpoints `/livez` (for startup and liveness probes) and `/readyz` (for the readiness probe). Previously, `/healthz` was used for all probes, which is deprecated behavior in the scope of this component. ([#126945](https://github.com/kubernetes/kubernetes/pull/126945), [@liangyuanpeng](https://github.com/liangyuanpeng)) [SIG Cluster...

- github.com/cespare/xxhash/v2: [v2.2.0 → v2.3.0](https://github.com/cespare/xxhash/compare/v2.2.0...v2.3.0)
- github.com/chzyer/readline: [2972be2 → v1.5.1](https://github.com/chzyer/readline/compare/2972be2...v1.5.1)
- github.com/cncf/udpa/go: [c52dc94 → 269d4d4](https://github.com/cncf/udpa/compare/c52dc94...269d4d4)

- If the user specifies an invalid timeout in the request URL, the request will be aborted with an HTTP 400.
  - in cases where the client specifies a timeout in the request URL, the overall request deadline is shortened now since the deadline is setup as soon as the request is received by the apiserver. ([#96901](https://github.com/kubernetes/kubernetes/pull/96901), [@tkashem](https://github.com/tkashem)) [SIG API Machinery and Testing]

has entered beta and is available by default. You can now [configure startup, liveness, and readiness probes](https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#configure-probes) for your gRPC app
natively within Kubernetes, without exposing an HTTP endpoint or
using an extra executable.

- Added readiness gates in extended output for pods ([#70775](https://github.com/kubernetes/kubernetes/pull/70775), [@freehan](https://github.com/freehan))

- Pods will now post their readiness during termination. ([#110417](https://github.com/kubernetes/kubernetes/pull/110417), [@aojea](https://github.com/aojea)) [SIG Network, Node and Testing]

* Adding container image verification webhook API. ([#30241](https://github.com/kubernetes/kubernetes/pull/30241), [@Q-Lee](https://github.com/Q-Lee))
* Nodecontroller doesn't flip readiness on pods if kubeletVersion < 1.2.0 ([#30828](https://github.com/kubernetes/kubernetes/pull/30828), [@bprashanth](https://github.com/bprashanth))

- The GetPCIeRootAttributeByPCIBusID helper now accepts a `fs.ReadLinkFS` optional argument to be filesystem-independenent ([#137220](https://github.com/kubernetes/kubernetes/pull/137220), [@ffromani](https://github.com/ffromani)) [SIG Node]

### Bug or Regression

- Fix 121094 by re-introducing the readiness predicate for externalTrafficPolicy: Local services. ([#121116](https://github.com/kubernetes/kubernetes/pull/121116), [@alexanderConstantinescu](https://github.com/alexanderConstantinescu)) [SIG Cloud Provider and Network]

- Pods will now post their readiness during termination. ([#110418](https://github.com/kubernetes/kubernetes/pull/110418), [@aojea](https://github.com/aojea)) [SIG Network, Node and Testing]