- Removed k8s.io/legacy-cloud-providers from staging. ([#124767](https://github.com/kubernetes/kubernetes/pull/124767), [@carlory](https://github.com/carlory)) [SIG API Machinery, Cloud Provider and Release]
- Removed legacy cloud provider integration code (undoing a previous reverted commit). ([#124886](https://github.com/kubernetes/kubernetes/pull/124886), [@carlory](https://github.com/carlory)) [SIG Cloud Provider and Release]

### API Change

- Enhanced cloud provider integrations to support optional, per-Node custom labels that can be supplied and applied to Nodes by the node controller. These extra labels will only be applied where the cloud provider integration supports this feature.
   ([#123223](https://github.com/kubernetes/kubernetes/pull/123223), [@mmerkes](https://github.com/mmerkes))

the corresponding iteration value will not be produced. If a map entry is
created during iteration, that entry may be produced during the iteration or
may be skipped. The choice may vary for each entry created and from one
iteration to the next.
If the map is <code>nil</code>, the number of iterations is 0.
</li>

<li>
For channels, the iteration values produced are the successive values sent on

- [KCCM] service controller: change the cloud controller manager to make `providerID` a predicate when synchronizing nodes. This change allows load balancer integrations to ensure that  the `providerID` is set when configuring