([#79106](https://github.com/kubernetes/kubernetes/pull/79106), [@vbannai](https://github.com/vbannai))

### Instrumentation

- Kibana has been slightly revamped/improved in the latest version ([#80421](https://github.com/kubernetes/kubernetes/pull/80421), [@lostick](https://github.com/lostick))

### Network

* Performance test framework and basic tests for the IPAM controller, to simulate behavior of the four supported modes under lightly loaded and loaded conditions, where load is defined as the number of operations to perform as against the configured kubernetes. ([#61143](https://github.com/kubernetes/kubernetes/pull/61143), [@satyasm](https://github.com/satyasm))

- **Cluster Ops**
  - [alpha] Added ability to create/remove clusters w/highly available (replicated) masters on GCE using kube-up/kube-down scripts. ([docs](http://kubernetes.io/docs/admin/ha-master-gce/)) ([kubernetes/features#48](https://github.com/kubernetes/enhancements/issues/48))
- **Federation**

1F634         ; valid                  ;      ; NV8    # 6.1  SLEEPING FACE
1F635..1F640  ; valid                  ;      ; NV8    # 6.0  DIZZY FACE..WEARY CAT FACE
1F641..1F642  ; valid                  ;      ; NV8    # 7.0  SLIGHTLY FROWNING FACE..SLIGHTLY SMILING FACE
1F643..1F644  ; valid                  ;      ; NV8    # 8.0  UPSIDE-DOWN FACE..FACE WITH ROLLING EYES

* **[stable]** Volume plugin for Portworx added capability to use [Portworx](http://www.portworx.com) as a storage provider for Kubernetes clusters. Portworx pools server capacity and turns servers or cloud instances into converged, highly available compute and storage nodes.
* **[stable]** Add support to use NFSv3, NFSv4, and GlusterFS on GCE/GKE GCI image based clusters.
* **[beta]** Added support for mount options in persistent volumes.

</pre>

<p>
they implement the <code>Locker</code> interface as well
as the <code>File</code> interface.
</p>

<h4 id="Embedded_interfaces">Embedded interfaces</h4>

<p>
In a slightly more general form
an interface <code>T</code> may use a (possibly qualified) interface type
name <code>E</code> as an interface element. This is called
<i>embedding</i> interface <code>E</code> in <code>T</code>

- Fixed bug in `TopologyManager` for ensuring aligned allocations...

#### Volume Plugins

     popular format
   * The main mime type should be the canonical one, use aliases for any
     other widely used forms
   * Where there's a hierarchy in the types, list it via a parent
   * Highly specific magic matches get a high priority
   * General magic matches which could trigger a false-positive need
     a low one
   * The priority for containers normally need to be higher than for

- Fixes error handling in a kubectl method...