- Azure VMSS/VMSSVM clients now suppress requests on throttling ([#86740](https://github.com/kubernetes/kubernetes/pull/86740), [@feiskyer](https://github.com/feiskyer)) [SIG Cloud Provider]
- Azure cloud provider cache TTL is configurable, list of the azure cloud provider is as following:
  - "availabilitySetNodesCacheTTLInSeconds"
  - "vmssCacheTTLInSeconds"

- Fix: set nil cache entry based on old cache ([#87591](https://github.com/kubernetes/kubernetes/pull/87591), [@aramase](https://github.com/aramase)) [SIG Cloud Provider]

- The in-tree cloud provider for AWS (and the EBS storage plugin) has now been removed. Please use the external cloud provider and CSI driver from https://github.com/kubernetes/cloud-provider-aws instead. ([#115838](https://github.com/kubernetes/kubernetes/pull/115838), [@torredil](https://github.com/torredil)) [SIG API Machinery,...

- Kubernetes is now built with Golang 1.16.9 (#105671, @cpanato) [SIG Cloud Provider, Instrumentation, Release and Testing]

### Bug or Regression

- Fix: consolidate logs for instance not found error (#105366, @nilo19) [SIG Cloud Provider]
- Fix: ignore not a VMSS error for VMAS nodes in EnsureBackendPoolDeleted. (#105400, @ialidzhikov) [SIG Cloud Provider]

- Fix: consolidate logs for instance not found error (#105364, @nilo19) [SIG Cloud Provider]
- Fix: ignore not a VMSS error for VMAS nodes in EnsureBackendPoolDeleted. (#105404, @ialidzhikov) [SIG Cloud Provider]
- Fix: ignore the case when updating Azure tags (#104687, @nilo19) [SIG Cloud Provider]

- Fix: ignore the case when updating Azure tags (#104686, @nilo19) [SIG Cloud Provider]
- Revert PR #102925 which introduced unexpected scheduling behavior based on balanced resource allocation (#105238, @damemi) [SIG Scheduling]
- Updates golang.org/x/text to v0.3.6 to fix CVE-2020-28852 (#102601, @jonesbr17) [SIG API Machinery, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Node and Storage]

- The kubelet, when using `--cloud-provider=external` can use the `--node-ip` flag with one of the unspecified addresses 0.0.0.0 or ::, to create the Node with the IP of the default gateway of the corresponding IP family and then delegating the responsibility to the external cloud provider. This solves the bootstrap problems of out of tree cloud providers that are deployed as Pods within the cluster. ([#125337](https://github.com/kubernetes/k...

- Fix: do not delete the lb that does not exist (#105777, @nilo19) [SIG Cloud Provider]
- Fix: ignore not a VMSS error for VMAS nodes in EnsureBackendPoolDeleted. (#105185, @ialidzhikov) [SIG Cloud Provider]
- Fix: leave the probe path empty for TCP probes (#105253, @nilo19) [SIG Cloud Provider]

- Kubelet, when using cloud provider external, initializes temporary the node addresses using the --node-ip flag values if set, until the cloud provider overrides it. ([#121028](https://github.com/kubernetes/kubernetes/pull/121028), [@aojea](https://github.com/aojea)) [SIG Cloud Provider and Node]

### OpenStack

SIG-OpenStack updated the OpenStack provider to use newer APIs, consolidated community code into one repository, engaged with the Cloud Provider Working Group to have a consistent plan for moving provider code into individual repositories, improved testing of provider code, and strengthened ties with the OpenStack developer community.

### API-machinery