- kubeadm: When certificates are present in joining a new control plane now ensures that they match at least the required SANs ([#73093](https://github.com/kubernetes/kubernetes/pull/73093), [@ereslibre](https://github.com/ereslibre))

*   Added extra_sans config option to kubeapi-load-balancer charm. This allows the user to specify extra SAN entries on the certificate generated for the load balancer. ([#54947](https://github.com/kubernetes/kubernetes/pull/54947),[ @hyperbolic2346](https://github.com/hyperbolic2346))...

* Fixing extra_sans option on master and load balancer. ([#58843](https://github.com/kubernetes/kubernetes/pull/58843), [@hyperbolic2346](https://github.com/hyperbolic2346))

- Kubeadm: fixed the bug that `kubeadm certs generate-csr` command does not remove duplicated SANs ([#107982](https://github.com/kubernetes/kubernetes/pull/107982), [@SataQiu](https://github.com/SataQiu))

* kubeadm: support sub-domain wildcards in certificate SANs ([#76920](https://github.com/kubernetes/kubernetes/pull/76920), [@sempr](https://github.com/sempr))

var s []string
_ = min(s...)               // invalid: slice arguments are not permitted
t := max("", "foo", "bar")  // t == "foo" (string kind)
</pre>

<p>
For numeric arguments, assuming all NaNs are equal, <code>min</code> and <code>max</code> are
commutative and associative:
</p>

<pre>
min(x, y)    == min(y, x)
min(x, y, z) == min(min(x, y), z) == min(x, min(y, z))
</pre>

<p>