- `client-go`: `sharedInformerFactory` now waits for goroutines during shutdown for metadatainformer and dynamicinformer. ([#114434](https://github.com/kubernetes/kubernetes/pull/114434), [@howardjohn](https://github.com/howardjohn))

- Kubernetes is now built with Go `1.20.6`. ([#119324](https://github.com/kubernetes/kubernetes/pull/119324), [@xmudrii](https://github.com/xmudrii))
- Metric `scheduler_scheduler_goroutines` is removed. Use `scheduler_goroutines` instead. ([#117727](https://github.com/kubernetes/kubernetes/pull/117727), [@kerthcet](https://github.com/kerthcet)) [SIG Scheduling]

- Bump `sigs.k8s.io/apiserver-network-proxy/konnectivity-client@v0.0.30` to fix a goroutine leak in kube-apiserver when using egress selctor with the gRPC mode. ([#108437](https://github.com/kubernetes/kubernetes/pull/108437), [@andrewsykim](https://github.com/andrewsykim))

- The `goroutines` metric is newly added in the scheduler. 
  It replaces `scheduler_goroutines` metric and it counts the number of goroutine in more places than `scheduler_goroutine` does. ([#112003](https://github.com/kubernetes/kubernetes/pull/112003), [@sanposhiho](https://github.com/sanposhiho)) [SIG Instrumentation and Scheduling]