- The `upstream` option is deprecated and ignored if included.
    ([#82127](https://github.com/kubernetes/kubernetes/pull/82127), [@rajansandeep](https://github.com/rajansandeep))

- kubectl

  - `kubectl convert`, deprecated since v1.14, will be removed in v1.17.
  - The `--export` flag for the `kubectl get` command, deprecated since v1.14, will be removed in v1.18.

* PetSet has been renamed to StatefulSet.
  If you have existing PetSets, **you must perform extra migration steps** both
  before and after upgrading to convert them to StatefulSets. ([docs](http://kubernetes.io/docs/tasks/manage-stateful-set/upgrade-pet-set-to-stateful-set/)) ([#35663](https://github.com/kubernetes/kubernetes/pull/35663), [@janetkuo](https://github.com/janetkuo))

- Fixes a `cannot convert int64 to float64` error seen using server-side apply with certain CRDs in 1.19.10+ ([#103105](https://github.com/kubernetes/kubernetes/pull/103105), [@liggitt](https://github.com/liggitt)) [SIG API Machinery]

- Fix azure file migration issue ([#97877](https://github.com/kubernetes/kubernetes/pull/97877), [@andyzhangx](https://github.com/andyzhangx)) [SIG Auth, Cloud Provider and Storage]
- Fix kubectl-convert import known versions ([#97754](https://github.com/kubernetes/kubernetes/pull/97754), [@wzshiming](https://github.com/wzshiming)) [SIG CLI and Testing]

* Allow drain --force to remove pods whose managing resource is deleted. ([#41864](https://github.com/kubernetes/kubernetes/pull/41864), [@marun](https://github.com/marun))

- Made `kube-aggregator` binary linking static (also affects the deb and rpm packages). ([#114227](https://github.com/kubernetes/kubernetes/pull/114227), [@saschagrunert](https://github.com/saschagrunert))
- Made `kubectl-convert` binary linking static (also affects the deb and rpm packages). ([#114228](https://github.com/kubernetes/kubernetes/pull/114228), [@saschagrunert](https://github.com/saschagrunert))

    private final ArtifactFilter toInvert;

    public InversionArtifactFilter(ArtifactFilter toInvert) {
        this.toInvert = toInvert;
    }

    public boolean include(Artifact artifact) {
        return !toInvert.include(artifact);
    }

    @Override
    public int hashCode() {
        int hash = 17;
        hash = hash * 31 + toInvert.hashCode();
        return hash;
    }

* [action required] kubeadm: The `v1alpha1` config API has been removed. ([#65628](https://github.com/kubernetes/kubernetes/pull/65628), [@luxas](https://github.com/luxas))
    * Please convert your `v1alpha1` configuration files to `v1alpha2` using the
    * `kubeadm config migrate` command of kubeadm v1.11.x

// PyCapsule name for DLPack Tensor
const char* const kDlTensorCapsuleName = "dltensor";

// Converts eager tensor handle to DLPack (DLManagedTensor*), and return the
// void* for further PyCapsule construction.
TF_CAPI_EXPORT extern void* TFE_HandleToDLPack(TFE_TensorHandle* h,
                                               TF_Status* status);

// Converts DLPack (DLManagedTensor*) to eager tensor handle.

invalid node names. ([#58502](https://github.com/kubernetes/kubernetes/pull/58502), [@dixudx](https://github.com/dixudx))

* Authentication information for OpenStack cloud provider can now be specified as environment variables. When we convert the OpenStack cloud provider to run in an external process, we can now use the kubernetes Secrets capability to inject the OS_* variables. This way we can specify the cloud configuration as a configmap, and specify secrets for the userid/password...