- Generated OpenAPI model packages for API types into `zz_generated.model_name.go` files, accessible via the `OpenAPIModelName()` function. This allows API authors to declare desired OpenAPI model packages instead of relying on the Go package path of API types. ([#131755](https://github.com/kubernetes/kubernetes/pull/131755), [@jpbetz](https://github.com/jpbetz))...

  * Previously this would cause the command to fail regardless of whether or not the field was present in the object model
  * Now the command will succeed even if the sort-by field is missing from one or more of the objects

- Fix VMSS LoadBalancer backend pools so that the network won't be broken when instances are upgraded to latest model ([#81411](https://github.com/kubernetes/kubernetes/pull/81411), [@nilo19](https://github.com/nilo19))

- Removed all support for _classic_ dynamic resource allocation (DRA). The `DRAControlPlaneController` feature gate, formerly alpha, is no longer available. Kubernetes now only uses the _structured parameters_ model (also alpha) for allocating dynamic resources to Pods.

  allows Pods to request (claim) special kinds of resources, which can be available at node level, cluster
  level, or following any other model you implement.' ([#111023](https://github.com/kubernetes/kubernetes/pull/111023), [@pohly](https://github.com/pohly))
- 'Container `preStop` and `postStart` lifecycle handlers using `httpGet` now

* Fix VMSS LoadBalancer backend pools so that the network won't be broken when instances are upgraded to latest model ([#81411](https://github.com/kubernetes/kubernetes/pull/81411), [@nilo19](https://github.com/nilo19))

* Fix VMSS LoadBalancer backend pools so that the network won't be broken when instances are upgraded to latest model ([#81411](https://github.com/kubernetes/kubernetes/pull/81411), [@nilo19](https://github.com/nilo19))

### SIG Instrumentation

As far as Sig Instrumentation, the major change in Kubernetes 1.11 is the deprecation of Heapster as part of ongoing efforts to move to the new Kubernetes monitoring model. Clusters still using Heapster for autoscaling should be migrated over to metrics-server and the custom metrics API. See the deprecation section for more information.

### SIG Network

- Fixing a bug that was preventing updates from 1.10 to 1.11

The external cloud provider was established and reached feature parity with in-tree, and we expect to stabilize it and have it as preferred deployment model by 1.13. We are also getting started on externalizing the vSphere volume functionalities in a CSI plugin to fully reproduce the current in-tree storage functionality.