- Kubeadm: added retry to all the calls to the etcd API so kubeadm will be more resilient to network glitches ([#85201](https://github.com/kubernetes/kubernetes/pull/85201), [@fabriziopandini](https://github.com/fabriziopandini))

- Fixed a bug where CEL expressions in CRD validation rules would incorrectly compute a high estimated cost for functions that return strings, lists or maps.
  The incorrect cost was evident when the result of a function was used in subsequent operations. ([#119800](https://github.com/kubernetes/kubernetes/pull/119800), [@jpbetz](https://github.com/jpbetz)) [SIG API Machinery, Auth and Cloud Provider]

- Apiserver repair controller is resilient to etcd errors during bootstrap and retries during 30 seconds before failing. ([#126671](https://github.com/kubernetes/kubernetes/pull/126671), [@fusida](https://github.com/fusida)) [SIG Network]

### SIG Cluster Lifecycle

  * kubeadm: The `:Etcd` struct has been refactored in the v1alpha2 API. All the options now reside under either `.Etcd.Local` or `.Etcd.External`. Automatic conversions from the v1alpha1 API are supported. ([#64066](https://github.com/kubernetes/kubernetes/pull/64066), [@luxas](https://github.com/luxas))

    * faster handoff when a leader-elected process is gracefully terminated.
* Make volume binder resilient to races between main schedule loop and async binding operation  ([#72045](https://github.com/kubernetes/kubernetes/pull/72045), [@cofyc](https://github.com/cofyc))

ister-cluster/cpu-management-policies/), which allows users to request exclusive CPU cores.  This helps performance in a variety of use-cases, including network latency sensitive applications, as well as applications that benefit from CPU cache residency.  Next, [Huge Pages](https://kubernetes.io/docs/tasks/manage-hugepages/scheduling-hugepages/), which allows pods to consume either 2Mi or 1Gi Huge Pages.  This benefits applications that consume large amounts of memory.  Use of Huge Pages is a common...

### API Change

- Fixed a bug where CEL expressions in CRD validation rules would incorrectly compute a high estimated cost for functions that return strings, lists or maps.
  The incorrect cost was evident when the result of a function was used in subsequent operations. ([#119809](https://github.com/kubernetes/kubernetes/pull/119809), [@jpbetz](https://github.com/jpbetz)) [SIG API Machinery, Auth and Cloud Provider]

### API Change

- Fixed a bug where CEL expressions in CRD validation rules would incorrectly compute a high estimated cost for functions that return strings, lists or maps.
  The incorrect cost was evident when the result of a function was used in subsequent operations. ([#119810](https://github.com/kubernetes/kubernetes/pull/119810), [@jpbetz](https://github.com/jpbetz)) [SIG API Machinery, Auth and Cloud Provider]

### API Change

- Fixed a bug where CEL expressions in CRD validation rules would incorrectly compute a high estimated cost for functions that return strings, lists or maps.
  The incorrect cost was evident when the result of a function was used in subsequent operations. ([#119807](https://github.com/kubernetes/kubernetes/pull/119807), [@jpbetz](https://github.com/jpbetz)) [SIG API Machinery, Auth and Cloud Provider]