- In the PriorityLevelConfiguration object, the `nominalConcurrencyShares` field now accepts a zero value in both the `flowcontrol.apiserver.k8s.io/v1` and `flowcontrol.apiserver.k8s.io/v1beta3` APIs.
   ([#123001](https://github.com/kubernetes/kubernetes/pull/123001), [@tkashem](https://github.com/tkashem))

- `PodLifecycleSleepAction` is now turned on by default allowing users to create containers with sleep lifecycle action with a duration of zero seconds ([#130621](https://github.com/kubernetes/kubernetes/pull/130621), [@sreeram-venkitesh](https://github.com/sreeram-venkitesh)) [SIG Node]

- Allows PreStop lifecycle handler's sleep action to have a zero value ([#127094](https://github.com/kubernetes/kubernetes/pull/127094), [@sreeram-venkitesh](https://github.com/sreeram-venkitesh)) [SIG Apps, Node and Testing]

    if (!status->status.ok()) return false;
  }
  return true;
}

// Create an empty tensor of type 'dtype'. 'shape' can be arbitrary, but has to
// result in a zero-sized tensor.
static TF_Tensor* EmptyTensor(TF_DataType dtype,
                              const tensorflow::TensorShape& shape) {
  static char empty;
  int64_t nelems = 1;
  std::vector<int64_t> dims;

pkg syscall (freebsd-386-cgo), type RawSockaddrInet4 struct, Family uint8
pkg syscall (freebsd-386-cgo), type RawSockaddrInet4 struct, Len uint8
pkg syscall (freebsd-386-cgo), type RawSockaddrInet4 struct, Zero [8]int8
pkg syscall (freebsd-386-cgo), type RawSockaddrInet6 struct, Family uint8
pkg syscall (freebsd-386-cgo), type RawSockaddrInet6 struct, Len uint8
pkg syscall (freebsd-386-cgo), type RawSockaddrUnix struct

`apiserver_kube_aggregator_x509_missing_san_total` and `apiserver_webhooks_x509_missing_san_total`. This metric measures a number of connections to webhooks/aggregated API servers that use certificates without Subject Alternative Names. It being non-zero is a warning sign that these connections will stop functioning in the future since Golang is going to deprecate x509 certificate subject Common Names for server hostname verification. ([#95396](https://github.com/kubernetes/kubernetes/pull/95396),...

- Kube-proxy handles Terminating EndpointSlices conditions and enables zero downtime deployments for Services with ExternalTrafficPolicy=Local author: @andrewsykim ([#117718](https://github.com/kubernetes/kubernetes/pull/117718), [@aojea](https://github.com/aojea)) [SIG Network, Testing and Windows]

    * Old behavior:
      * environment variables explicitly whitelisted via --docker-env-metadata-whitelist were exported as `container_env_*=*`. Default is zero so by default non were exported
      * all docker labels were exported as `container_label_*=*`
    * New behavior:
      * Only `container_name`, `pod_name`, `namespace`, `id`, `image`, and `name` labels are exposed

* When HPAScaleToZero feature gate is enabled HPA supports scaling to zero pods based on object or external metrics. HPA remains active as long as at least one metric value available. ([#74526](https://github.com/kubernetes/kubernetes/pull/74526), [@DXist](https://github.com/DXist))
    * To downgrade the cluster to version that does not support scale-to-zero feature:

pkg reflect, func NewAt(Type, unsafe.Pointer) Value
pkg reflect, func PtrTo(Type) Type
pkg reflect, func TypeOf(interface{}) Type
pkg reflect, func ValueOf(interface{}) Value
pkg reflect, func Zero(Type) Value
pkg reflect, method (*ValueError) Error() string
pkg reflect, method (ChanDir) String() string
pkg reflect, method (Kind) String() string
pkg reflect, method (StructTag) Get(string) string