Also for security reasons, only a limited set of characters are
permitted, notably alphanumeric characters and a few symbols, such as
'.', that will not be interpreted in unexpected ways. Attempts to use
forbidden characters will get a "malformed #cgo argument" error.

When building, the CGO_CFLAGS, CGO_CPPFLAGS, CGO_CXXFLAGS, CGO_FFLAGS and
CGO_LDFLAGS environment variables are added to the flags derived from

- Graduated the `DisableNodeKubeProxyVersion` feature gate to beta. By default, the kubelet no longer attempts to set the `.status.kubeProxyVersion` field for its associated Node. ([#123845](https://github.com/kubernetes/kubernetes/pull/123845), [@HirazawaUi](https://github.com/HirazawaUi)) [SIG API Machinery, Cloud Provider, Network, Node and Testing]

- Added two scheduler metrics for Device Binding Conditions, covering allocation attempts and PreBind duration with status and driver labels. ([#137284](https://github.com/kubernetes/kubernetes/pull/137284), [@ttsuuubasa](https://github.com/ttsuuubasa)) [SIG Node and Scheduling]

* add reconcile command to kubectl auth ([#51636](https://github.com/kubernetes/kubernetes/pull/51636), [@deads2k](https://github.com/deads2k))
* Advanced audit allows logging failed login attempts ([#51119](https://github.com/kubernetes/kubernetes/pull/51119), [@soltysh](https://github.com/soltysh))

### SIG Windows

- Kubelet no longer attempts to sync iptables on non-Linux systems.. ([#67690](https://github.com/kubernetes/kubernetes/pull/67690), [@feiskyer](https://github.com/feiskyer))