- kubeadm: `kubeadm upgrade node` now supports `addon` and `post-upgrade` phases. Users can use `kubeadm upgrade node phase addon` to execute the addon upgrade, or use `kubeadm upgrade node --skip-phases addon` to skip the addon upgrade. If you were previously skipping an addon subphase on `kubeadm init` you should now skip the same addon when calling `kubeadm upgrade apply` and `kubeadm upgrade node`. Currently, the `post-upgrade` phase is...

- Bumped addon manager to use `kubectl` version `v1.32.2`. ([#130548](https://github.com/kubernetes/kubernetes/pull/130548), [@Jefftree](https://github.com/Jefftree)) [SIG Cloud Provider, Scalability and Testing]

- kubeadm: if an addon is disabled in the ClusterConfiguration, skip it during upgrade. ([#129418](https://github.com/kubernetes/kubernetes/pull/129418), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

				"application/vnd.mozilla.xul+xml",
				"application/vnd.ms-artgalry",
				"application/vnd.ms-asf",
				"application/vnd.ms-cab-compressed",
				"application/vnd.ms-excel",
				"application/vnd.ms-excel.addin.macroenabled.12",
				"application/vnd.ms-excel.sheet.macroenabled.12",
				"application/vnd.ms-excel.sheet.binary.macroenabled.12",
				"application/vnd.ms-fontobject",
				"application/vnd.ms-htmlhelp",

    <glob pattern="*.xlw"/>
    <glob pattern="*.xll"/>
    <glob pattern="*.xld"/>
    <sub-class-of type="application/x-tika-msoffice"/>
  </mime-type>

  <mime-type type="application/vnd.ms-excel.addin.macroenabled.12">
    <_comment>Office Open XML Workbook Add-in (macro-enabled)</_comment>
    <glob pattern="*.xlam"/>
    <sub-class-of type="application/x-tika-ooxml"/>
  </mime-type>

- `kubeadm`: Introduced a new feature gate `UpgradeAddonsBeforeControlPlane` to
  fix a kube-proxy skew policy misalignment. Its default value is `false`. Upgrade
  of the CoreDNS and kube-proxy addons will now trigger after all the control plane
  instances have been upgraded, unless the fearure gate is set to true. This feature

- Kubeadm: Removed the deprecated `UpgradeAddonsBeforeControlPlane` feature gate; Ensured that the upgrade of the CoreDNS and kube-proxy addons would not be triggered until all the control plane instances were upgraded. ([#124715](https://github.com/kubernetes/kubernetes/pull/124715), [@SataQiu](https://github.com/SataQiu))