### Native. Build Infrastructure

- [`KT-58160`](https://youtrack.jetbrains.com/issue/KT-58160) Native: performance build configuration fails with NoSuchMethodError: 'boolean kotlinx.coroutines.CompletableDeferredKt.completeWith(kotlinx.coroutines.CompletableDeferred, java.lang.Object)'

### Native. C and ObjC Import

- [`KT-54610`](https://youtrack.jetbrains.com/issue/KT-54610) Kotlin Native can't call `objc_direct` functions

<a href="#Length_and_capacity"><code>cap</code></a> and
<a href="#Length_and_capacity"><code>len</code></a>
by any number of goroutines without further synchronization.
Channels act as first-in-first-out queues.
For example, if one goroutine sends values on a channel
and a second goroutine receives them, the values are
received in the order sent.
</p>

- 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]

## Changelog since v1.15.10

## Changes by Kind

### Other (Bug, Cleanup or Flake)

- Add delays between goroutines for vm instance update ([#88094](https://github.com/kubernetes/kubernetes/pull/88094), [@aramase](https://github.com/aramase)) [SIG Cloud Provider]

* Resolves bottleneck in internal API server communication that can cause increased goroutines and degrade API Server performance ([#80465](https://github.com/kubernetes/kubernetes/pull/80465), [@answer1991](https://github.com/answer1991))

- 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]

- `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))

- Add azure disk WriteAccelerator support ([#87945](https://github.com/kubernetes/kubernetes/pull/87945), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider and Storage]
- Add delays between goroutines for vm instance update ([#88094](https://github.com/kubernetes/kubernetes/pull/88094), [@aramase](https://github.com/aramase)) [SIG Cloud Provider]

* Resolves bottleneck in internal API server communication that can cause increased goroutines and degrade API Server performance ([#80465](https://github.com/kubernetes/kubernetes/pull/80465), [@answer1991](https://github.com/answer1991))

- 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))