evaluates to true, the "if" branch is executed, otherwise, if
present, the "else" branch is executed.
</p>

<pre class="ebnf">
IfStmt = "if" [ SimpleStmt ";" ] Expression Block [ "else" ( IfStmt | Block ) ] .
</pre>

<pre>
if x &gt; max {
	x = max
}
</pre>

<p>
The expression may be preceded by a simple statement, which
executes before the expression is evaluated.
</p>

* Added a 'kubeadm config migrate' command to convert old API types to their newer counterparts in the new, supported API types. This is just a client-side tool; it just executes locally without requiring a cluster to be running, operating in much the same way as a Unix pipe that upgrades config files. ([#64232](https://github.com/kubernetes/kubernetes/pull/64232), [@luxas](https://github.com/luxas))

* kubeadm: Fix a bug where `kubeadm join` would wait 5 seconds without doing anything. Now `kubeadm join` executes the tasks immediately. ([#48737](https://github.com/kubernetes/kubernetes/pull/48737), [@mattmoyer](https://github.com/mattmoyer))

* kubeadm: Fix a bug where `kubeadm join` would wait 5 seconds without doing anything. Now `kubeadm join` executes the tasks immediately. ([#48737](https://github.com/kubernetes/kubernetes/pull/48737), [@mattmoyer](https://github.com/mattmoyer))

execute-api.ap-southeast-2.amazonaws.com
execute-api.ap-southeast-3.amazonaws.com
execute-api.ap-southeast-4.amazonaws.com
execute-api.ap-southeast-5.amazonaws.com
execute-api.ca-central-1.amazonaws.com
execute-api.ca-west-1.amazonaws.com
execute-api.eu-central-1.amazonaws.com
execute-api.eu-central-2.amazonaws.com
execute-api.eu-north-1.amazonaws.com
execute-api.eu-south-1.amazonaws.com

- `StartupProbe` is stopped explicity when `successThrethold` is reached. 
  This eliminates the problem that `StartupProbe` is executed more than `successThrethold`. ([#121206](https://github.com/kubernetes/kubernetes/pull/121206), [@mochizuki875](https://github.com/mochizuki875)) [SIG Node]

### Other (Cleanup or Flake)

- Kubeadm: fix a bug where file copy(backup) could not be executed correctly on Windows platform during upgrade ([#117861](https://github.com/kubernetes/kubernetes/pull/117861), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]

- For volumes that allow attaches across multiple nodes, attach and detach operations across different nodes are now executed in parallel. ([#88678](https://github.com/kubernetes/kubernetes/pull/88678), [@verult](https://github.com/verult)) [SIG Storage]

- For volumes that allow attaches across multiple nodes, attach and detach operations across different nodes are now executed in parallel. ([#89241](https://github.com/kubernetes/kubernetes/pull/89241), [@verult](https://github.com/verult)) [SIG Apps, Node and Storage]

- For volumes that allow attaches across multiple nodes, attach and detach operations across different nodes are now executed in parallel. ([#89239](https://github.com/kubernetes/kubernetes/pull/89239), [@verult](https://github.com/verult)) [SIG Apps, Node and Storage]