* add external resource group support for azure disk ([#64427](https://github.com/kubernetes/kubernetes/pull/64427), [@andyzhangx](https://github.com/andyzhangx))
* Properly manage security groups for loadbalancer services on OpenStack. ([#65373](https://github.com/kubernetes/kubernetes/pull/65373), [@multi-io](https://github.com/multi-io))

Besides the above new features, support for Azure Virtual Machine Scale Sets (VMSS) and Cluster-Autoscaler is now stable and considered GA:

- Azure virtual machine scale sets (VMSS) allow you to create and manage identical load balanced VMs that automatically increase or decrease based on demand or a set schedule.

- Updated the control plane's trust anchor publisher to create and manage a new ClusterTrustBundle object, associated with the `kubernetes.io/kube-apiserver-serving` X.509 certificate signer. This ClusterTrustBundle contains a PEM bundle in its payload that you can use to verify kube-apiserver serving certificates. ([#...

### Serverside Apply - Beta 2

Server-side Apply was promoted to Beta in 1.16, but is now introducing a second Beta in 1.18. This new version will track and manage changes to fields of all new Kubernetes objects, allowing you to know what changed your resources and when.

### Extending Ingress with and replacing a deprecated annotation with IngressClass

- Allow kubectl to manage resources by filename patterns without the shell expanding it first ([#102265](https://github.com/kubernetes/kubernetes/pull/102265), [@danielrodriguez](https://github.com/danielrodriguez))

A2B1lB,GACvB,OAAOklB,GAAqB7kB,KACxBZ,KACAO,EACAP,KAAK4f,UACL5f,KAAKunB,aACL,EACA,IAiTRb,GAAMhH,QAAUgH,GAAMjH,SA/OtB,SAAuBlf,GACnB,OAAgB,MAATA,EACDwH,KAAKgD,MAAM/K,KAAK0L,QAAU,GAAK,GAC/B1L,KAAK0L,MAAoB,GAAbnL,EAAQ,GAAUP,KAAK0L,QAAU,IA6OvDgb,GAAMhb,MAAQgE,GACdgX,GAAM9a,YAhuHN,WACI,OAAOA,GAAY5L,KAAK6K,OAAQ7K,KAAK0L,UAguHzCgb,GAAMtV,KAAOsV,GAAM/G,MAj7GnB,SAAoBpf,GAChB,IAAI6Q,EAAOpR,KAAK+I,aAAaqI,KAAKpR,MAClC,OAAgB,MAATO,EAAgB6Q,EAAOpR,KAAK+e,IAAqB,GAAhBxe,EAAQ6Q,GAAW,MAg7G/DsV,GAAM9G,QAAU8G,GAAMyD,S...

The kubeadm configuration file API is moving from v1beta1 to v1beta2 in 1.15.

These changes are reflected in the following Kubernetes enhancements:

### Server-side Apply graduates to GA

</p>

<pre>
panic(42)
panic("unreachable")
panic(Error("cannot parse"))
</pre>

<p>
The <code>recover</code> function allows a program to manage behavior
of a panicking goroutine.
Suppose a function <code>G</code> defers a function <code>D</code> that calls
<code>recover</code> and a panic occurs in a function on the same goroutine in which <code>G</code>

### Failing Test

- Resolves an issue running Ingress conformance tests on clusters which use finalizers on Ingress objects to manage releasing load balancer resources ([#96742](https://github.com/kubernetes/kubernetes/pull/96742), [@spencerhance](https://github.com/spencerhance)) [SIG Network and Testing]

### Bug or Regression