- [alpha] ingress has alpha support for a single master multi zone cluster ([docs](http://kubernetes.io/docs/user-guide/ingress.md#failing-across-availability-zones)) ([kubernetes/features#52](https://github.com/kubernetes/enhancements/issues/52))
- **Network**

* Portworx volume driver no longer has to run on the master. ([#45518](https://github.com/kubernetes/kubernetes/pull/45518), [@harsh-px](https://github.com/harsh-px))

* Default behavior in Cinder storageclass is changed. If availability is not specified, the zone is chosen by algorithm. It makes possible to spread stateful pods across many zones. ([#44798](https://github.com/kubernetes/kubernetes/pull/44798), [@zetaab](https://github.com/zetaab))

  the following annotation - `scheduler.alpha.kubernetes.io/critical-pod`
  - This feature should be used in conjunction with the
    [rescheduler](https://kubernetes.io/docs/admin/rescheduler/) to guarantee
    resource availability for critical system pods.
* **[alpha]** `--experimental-nvidia-gpus` flag is replaced by `Accelerators` alpha
  feature gate along with addition of support for multiple Nvidia GPUs.

### Other (Bug, Cleanup or Flake)

- Azure: fix concurreny issue in lb creation ([#89604](https://github.com/kubernetes/kubernetes/pull/89604), [@aramase](https://github.com/aramase)) [SIG Cloud Provider]
- Ensure Azure availability zone is always in lower cases. ([#89722](https://github.com/kubernetes/kubernetes/pull/89722), [@feiskyer](https://github.com/feiskyer)) [SIG Cloud Provider]

- Kube-apiserver: redirects from backend API servers are no longer followed when checking availability with requests to `/apis/$group/$version` ([#112772](https://github.com/kubernetes/kubernetes/pull/112772), [@liggitt](https://github.com/liggitt)) [SIG API Machinery and Testing]

- Graduated support for Container Device Interface (CDI) device IDs to general availability. The `DevicePluginCDIDevices` feature gate is now enabled unconditionally. ([#123315](https://github.com/kubernetes/kubernetes/pull/123315), [@bart0sh](https://github.com/bart0sh)) [SIG Node]

- Fixed CSI migration of Azure Disk in-tree StorageClasses with topology requirements in Azure regions that do not have availability zones. ([#109154](https://github.com/kubernetes/kubernetes/pull/109154), [@jsafrane](https://github.com/jsafrane))

- Sysctls graduates to General Availability and thus unconditionally enabled. ([#99158](https://github.com/kubernetes/kubernetes/pull/99158), [@wgahnagl](https://github.com/wgahnagl))

### SIG Network

The main milestones for SIG Network this release are the graduation of IPVS-based load balancing and CoreDNS to general availability.

IPVS is an alternative approach to in-cluster load balancing that uses in-kernel hash tables rather than the previous iptables approach, while CoreDNS is a replacement for kube-dns for service discovery.