- Kubenet: added HostPort IPv6 support.  HostPortManager: operates only with one IP family, failing if receives port mapping entries with different IP families.  HostPortSyncer: operates only with one IP family, skipping portmap entries with different IP families ([#80854](https://github.com/kubernetes/kubernetes/pull/80854), [@aojea](https://github.com/aojea))

- Client-go now exposes two new metrics to monitor the client-go logic that
  generate http.Transports for the clients.
  
  - `rest_client_transport_cache_entries` is a gauge metric
  with the number of existing entries in the internal cache
  
  - `rest_client_transport_create_calls_total` is a counter
  that increments each time a new transport is created, storing

* Check if container memory stats are available before accessing it ([#77656](https://github.com/kubernetes/kubernetes/pull/77656), [@yastij](https://github.com/yastij))
* Fixes segmentation fault issue with Protobuf library when log entries are deeply nested. ([#77224](https://github.com/kubernetes/kubernetes/pull/77224), [@qingling128](https://github.com/qingling128))

- The scheduler's assumed...

*   Added support for adding a Windows node ([#53553](https://github.com/kubernetes/kubernetes/pull/53553),[ @bsteciuk](https://github.com/bsteciuk))

#### **Juju**

*   Added support for SAN entries in the master node certificate. ([#54234](https://github.com/kubernetes/kubernetes/pull/54234),[ @hyperbolic2346](https://github.com/hyperbolic2346))

- A terminating pod on a node that is not caused by preemption no longer prevents `kube-scheduler` from preempting pods on that node

* Fix panic create/update CRD when mutating/validating webhook configured. ([#61404](https://github.com/kubernetes/kubernetes/pull/61404), [@hzxuzhonghu](https://github.com/hzxuzhonghu))
* Add support to ingest log entries to Stackdriver against new "k8s_container" and "k8s_node" resources. ([#62076](https://github.com/kubernetes/kubernetes/pull/62076), [@qingling128](https://github.com/qingling128))

* Allow user to scale l7 default backend deployment ([#62685](https://github.com/kubernetes/kubernetes/pull/62685), [@freehan](https://github.com/freehan))
* Add support to ingest log entries to Stackdriver against new "k8s_container" and "k8s_node" resources. ([#62076](https://github.com/kubernetes/kubernetes/pull/62076), [@qingling128](https://github.com/qingling128))

* fix smb unmount issue on Windows ([#75087](https://github.com/kubernetes/kubernetes/pull/75087), [@andyzhangx](https://github.com/andyzhangx))
* Fixes segmentation fault issue with Protobuf library when log entries are deeply nested. ([#77224](https://github.com/kubernetes/kubernetes/pull/77224), [@qingling128](https://github.com/qingling128))

- The new test `[sig-network] DNS should now provide /etc/hosts entries for the cluster [LinuxOnly] [Conformance]` will validate the host entries set in the ``/etc/hosts`` file (pod's FQDN and hostname), which should be managed by Kubelet. ([#72729](https://github.com/kubernetes/kubernetes/pull/72729), [@bclau](https://github.com/bclau))