- Kubeadm: when adding new control plane nodes with "kubeadm join", ensure that the etcd member addition is performed only if a given member URL does not already exist in the list of members. Similarly, on "kubeadm reset" only remove an etcd member if its ID exists. ([#127621](https://github.com/kubernetes/kubernetes/pull/127621), [@SataQiu](https://github.com/SataQiu))...

HSPLkotlinx/coroutines/internal/AtomicOp;-><clinit>()V
HSPLkotlinx/coroutines/internal/AtomicOp;-><init>()V
HSPLkotlinx/coroutines/internal/AtomicOp;->perform(Ljava/lang/Object;)Ljava/lang/Object;
HSPLkotlinx/coroutines/internal/DispatchedContinuation;-><clinit>()V

* Fix GCE etcd scripts to pass in all required parameters for the etcd migration utility to correctly perform HA upgrades and downgrades ([#61960](https://github.com/kubernetes/kubernetes/pull/61960), [@jpbetz](https://github.com/jpbetz))

the associativity of the operators.  Explicit parentheses affect the evaluation
by overriding the default associativity.
In the expression <code>x + (y + z)</code> the addition <code>y + z</code>
is performed before adding <code>x</code>.
</p>

<h2 id="Statements">Statements</h2>

<p>
Statements control execution.
</p>

<pre class="ebnf">

* Add `Option` field to the admission webhook `AdmissionReview` API that provides the operation options (e.g. `DeleteOption` or `CreateOption`) for the operation being performed. ([#77563](https://github.com/kubernetes/kubernetes/pull/77563), [@jpbetz](https://github.com/jpbetz))

- **API Machinery**
  - [alpha] Generate audit logs for every request user performs against secured API server endpoint. ([docs](http://kubernetes.io/docs/admin/audit/)) ([kubernetes/features#22](https://github.com/kubernetes/enhancements/issues/22))

* PetSet has been renamed to StatefulSet.
  If you have existing PetSets, **you must perform extra migration steps** both

- Kubeadm: when adding new control plane nodes with "kubeadm join", ensure that the etcd member addition is performed only if a given member URL does not already exist in the list of members. Similarly, on "kubeadm reset" only remove an etcd member if its ID exists. ([#127622](https://github.com/kubernetes/kubernetes/pull/127622), [@SataQiu](https://github.com/SataQiu))...

- Kubeadm: during execution of the "check expiration" command, treat the etcd CA as external if there is a missing etcd CA key file (etcd/ca.key) and perform the proper validation on certificates signed by the etcd CA. Additionally, make sure that the CA for all entries in the output table is included - for both certificates on disk and in kubeconfig files. ([#106923](https://github.com/kubernetes/kub...

**Affected Versions**: