- Code-gen: Removed lowercasing for project imports ([#68484](https://github.com/kubernetes/kubernetes/pull/68484), [@jsturtevant](https://github.com/jsturtevant))

* Support whitespace in command path for gcp auth plugin ([#41653](https://github.com/kubernetes/kubernetes/pull/41653), [@jlowdermilk](https://github.com/jlowdermilk))
* client-go no longer imports GCP OAuth2 and OpenID Connect packages by default. ([#41532](https://github.com/kubernetes/kubernetes/pull/41532), [@ericchiang](https://github.com/ericchiang))

  permission change handling, ensuring correct behavior when run as root. ([#130616](https://github.com/kubernetes/kubernetes/pull/130616), [@gnufied](https://github.com/gnufied))
- Fixed an issue in register-gen where imports for k8s.io/apimachinery/pkg/runtime and k8s.io/apimachinery/pkg/runtime/schema were missing. ([#129307](https://github.com/kubernetes/kubernetes/pull/129307), [@LionelJouin](https://github.com/LionelJouin)) [SIG API Machinery]

import m "lib/math"         m.Sin
import . "lib/math"         Sin
</pre>

<p>
An import declaration declares a dependency relation between
the importing and imported package.
It is illegal for a package to import itself, directly or indirectly,
or to directly import a package without
referring to any of its exported identifiers. To import a package solely for

- Fixed an issue in register-gen where imports for k8s.io/apimachinery/pkg/runtime and k8s.io/apimachinery/pkg/runtime/schema were missing. ([#130392](https://github.com/kubernetes/kubernetes/pull/130392), [@mrIncompetent](https://github.com/mrIncompetent)) [SIG API Machinery]

- Kube-apiserver now reports latency metric for JWT authenticator authenticate token decisions in the `apiserver_authentication_jwt_authenticator_latency_seconds` metric, labeled by jwtIssuer hash and result. ([#123225](https://github.com/kubernetes/kubernetes/pull/123225), [@aramase](https://github.com/aramase))

- Fix kube-apiserver not to create default/kubernetes service endpoints before it reports readiness via the /healthz and therefore is ready to serve requests. Also early during startup old endpoints are remove which might be left over from a previously crashed kube-apiserver. ([#74668](https://github.com/kubernetes/kubernetes/pull/74668),...

Kubernetes environment, there is a compatibility issue with certain virtualization products. Specifically the Windows version of the kubelet.exe calls `GetPhysicallyInstalledSystemMemory` to get the physical memory installed on Windows machines and reports it as part of node metrics to heapster. This API call fails for VMware and VirtualBox virtualization environments. This issue is not present in bare metal Windows deployments, in Hyper-V, or on some of the popular public cloud providers.

*...

* The Kubelet now exports metrics that report the assigned (`node_config_assigned`), last-known-good (`node_config_last_known_good`), and active (`node_config_active`) config sources, and a metric indicating whether the node is experiencing a config-related error (`node_config_error`)....

- The feature gate "SkipReadOnlyValidationGCE" has been removed.  This gate has been active for 2 releases with no reports of issues (and was such a niche thing, we didn't expect any). ([#124210](https://github.com/kubernetes/kubernetes/pull/124210),...