auth.sa-east-1.amazoncognito.com
auth.us-east-1.amazoncognito.com
auth-fips.us-east-1.amazoncognito.com
auth.us-east-2.amazoncognito.com
auth-fips.us-east-2.amazoncognito.com
auth-fips.us-gov-west-1.amazoncognito.com
auth.us-west-1.amazoncognito.com
auth-fips.us-west-1.amazoncognito.com
auth.us-west-2.amazoncognito.com
auth-fips.us-west-2.amazoncognito.com

// Amazon EC2

  which the scheduler might miss some updates for the Pods rejected by NodeUnschedulable plugin and put the Pods in the queue for a longer time than needed. ([#127427](https://github.com/kubernetes/kubernetes/pull/127427), [@sanposhiho](https://github.com/sanposhiho)) [SIG Scheduling]
- Fixes the bug in PodTopologySpread that only happens with QHint enabled, 

- The `CloudDualStackNodeIPs` feature is now `beta`, meaning that when using
  an external cloud provider that has been updated to support the feature,
  you can pass comma-separated dual-stack `--node-ips` to `kubelet` and have
  the cloud provider take both IPs into account. ([#120275](https://github.com/kubernetes/kubernetes/pull/120275), [@danwinship](https://github.com/danwinship))

- The scheduling queue didn't notice any extenders' failures, it could miss some cluster events,
  and it could end up Pods rejected by Extenders stuck in unschedulable pod pool in 5min in the worst-case scenario.

* Fixes a performance issue when using server-side apply with objects with very large atomic maps. ([#85462](https://github.com/kubernetes/kubernetes/pull/85462), [@jennybuckley](https://github.com/jennybuckley))

- When registering with a 1.17+ API server, MutatingWebhookConfiguration...

    - When upgrading from previous releases, issues will arise with public IPs if multiple clusters share the same resource group. To solve these problems, make the following changes to the cluster:
Recreate the relevant LoadBalancer services, or add a new tag 'kubernetes-cluster-name: <cluster-name>' manually for existing public IPs.

	* Mechanism of adding `federation domain maps` to kube-dns deployment via `--federations` flag is superseded by adding/updating `federations` key in `kube-system/kube-dns` configmap. If user is using kubefed tool to join cluster federation, adding federation domain maps to kube-dns is already taken care by `kubefed join` and does not need further action.

</p>

<pre>
make(map[string]int)
make(map[string]int, 100)
</pre>

<p>
The initial capacity does not bound its size:
maps grow to accommodate the number of items
stored in them, with the exception of <code>nil</code> maps.
A <code>nil</code> map is equivalent to an empty map except that no elements
may be added.
</p>

<h3 id="Channel_types">Channel types</h3>

<p>

- Resolves an issue that causes winkernel proxier to treat stale VIPs as valid ([#113558](https://github.com/kubernetes/kubernetes/pull/113558), [@daschott](https://github.com/daschott)) [SIG Network and Windows]