- Kubeadm: during execution of the `certs 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...

- Kubeadm: unhide the "etcd-join" phase of "kubeadm join" to allow on-demand execution of the phase if the ControlPlaneLocalMode feature gate is not enabled ([#135481](https://github.com/kubernetes/kubernetes/pull/135481), [@borovetsav](https://github.com/borovetsav)) [SIG Cluster Lifecycle]

- 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 `--` separator has been recommended since the Kubernetes v1.18 release, which also deprecated the legacy way of invoking `kubectl exec`.
  
  This change aligns with the deprecation of legacy `kubectl exec` command execution and enforces the use of `kubectl exec [POD] -- [COMMAND]` for improved compatibility and adherence to recommended practices."

- 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...

encryption // streams to be done in parallel, which is achieved by interleaving // vcipher instructions from each stream. This is also referred to as // stitching, and provides significant performance improvements. // Some macros are defined which enable execution for big or little // endian as well as different ISA targets. //func (g *gcmAsm) counterCrypt(out, in []byte, counter *[gcmBlockSize]byte, key[gcmBlockSize]uint32) //func counterCryptASM(xr, out, in, counter, key) TEXT ·counterCryptASM(SB), NOSPLIT,...

encryption // streams to be done in parallel, which is achieved by interleaving // vcipher instructions from each stream. This is also referred to as // stitching, and provides significant performance improvements. // Some macros are defined which enable execution for big or little // endian as well as different ISA targets. //func (g *gcmAsm) counterCrypt(out, in []byte, counter *[gcmBlockSize]byte, key[gcmBlockSize]uint32) //func counterCryptASM(xr, out, in, counter, key) TEXT ·counterCryptASM(SB), NOSPLIT,...

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