* corrects a race condition in bootstrapping aggregated cluster roles in new HA clusters ([#63761](https://github.com/kubernetes/kubernetes/pull/63761), [@liggitt](https://github.com/liggitt))

* corrects a race condition in bootstrapping aggregated cluster roles in new HA clusters ([#63761](https://github.com/kubernetes/kubernetes/pull/63761), [@liggitt](https://github.com/liggitt))

Kubeadm: Automate certificate copy between control planes in HA setups

- Joining control plane nodes to a HA cluster can now be simplified by enabling the optional automatic copy of certificates from an existing control plane node.

* Fix GCE etcd scripts to pass in all required parameters for the etcd migration utility to correctly perform HA upgrades and downgrades ([#61957](https://github.com/kubernetes/kubernetes/pull/61957), [@jpbetz](https://github.com/jpbetz))

* Fix a bug where soft eviction would not trigger when the threshold was crossed ([#52046](https://github.com/kubernetes/kubernetes/pull/52046), [@dashpole](https://github.com/dashpole))
* Addon manager supports HA masters. ([#55782](https://github.com/kubernetes/kubernetes/pull/55782), [@x13n](https://github.com/x13n))

the cluster lifecycle building block, continues to receive features and stability work required for bootstrapping production clusters efficiently. kubeadm has promoted high availability (HA) capability to beta, allowing users to use the familiar `kubeadm init` and `kubeadm join` commands to [configure and deploy an HA control plane](https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/high-availability/). An entire new test suite has been created specifically for ensuring these features...

- Ensure empty string annotations are copied over in rollbacks. ([#94858](https://github.com/kubernetes/kubernetes/pull/94858), [@waynepeking348](https://github.com/waynepeking348))
- Ensure only one LoadBalancer rule is created when HA mode is enabled ([#99825](https://github.com/kubernetes/kubernetes/pull/99825), [@feiskyer](https://github.com/feiskyer)) [SIG Cloud Provider]

* kubeadm: fix a possible panic when joining a new control plane node in HA scenarios ([#72123](https://github.com/kubernetes/kubernetes/pull/72123), [@anitgandhi](https://github.com/anitgandhi))

- Ensure only one LoadBalancer rule is created when HA mode is enabled ([#99825](https://github.com/kubernetes/kubernetes/pull/99825), [@feiskyer](https://github.com/feiskyer)) [SIG Cloud Provider]