- Fixed panic when accessing CustomResources of a CRD with `x-kubernetes-int-or-string`. ([#83787](https://github.com/kubernetes/kubernetes/pull/83787), [@sttts](https://github.com/sttts))

    even for a single call.

    Interceptors that rewrite or replace the request body may now inadvertently interfere with
    duplex request bodies. Such interceptors should check `RequestBody.isDuplex()` and avoid
    accessing the request body when it is.

    Duplex calls require HTTP/2. If HTTP/1 is established instead the duplex call will fail. The
    most common use of duplex calls is [gRPC][grpc_http2].

   * accomplished through the returned multimap.
   *
   * <p>It is imperative that the user manually synchronize on the returned multimap when accessing
   * any of its collection views:
   *
   * {@snippet :
   * Multimap<K, V> multimap = Multimaps.synchronizedMultimap(
   *     HashMultimap.<K, V>create());
   * ...

   * accomplished through the returned multimap.
   *
   * <p>It is imperative that the user manually synchronize on the returned multimap when accessing
   * any of its collection views:
   *
   * {@snippet :
   * Multimap<K, V> multimap = Multimaps.synchronizedMultimap(
   *     HashMultimap.<K, V>create());
   * ...

* Retry 'connection refused' errors when setting up clusters on GCE. ([#57394](https://github.com/kubernetes/kubernetes/pull/57394), [@mborsz](https://github.com/mborsz))
* Fixes issue creating docker secrets with kubectl 1.9 for accessing docker private registries. ([#57463](https://github.com/kubernetes/kubernetes/pull/57463), [@dims](https://github.com/dims))

## Changelog since v1.15.4

### Other notable changes

* Fixes kube-proxy bug accessing self nodeip:port on windows ([#83027](https://github.com/kubernetes/kubernetes/pull/83027), [@liggitt](https://github.com/liggitt))
* Fixed panic when accessing CustomResources of a CRD with x-kubernetes-int-or-string. ([#83790](https://github.com/kubernetes/kubernetes/pull/83790), [@sttts](https://github.com/sttts))

- Fixed a bug in the `NestedNumberAsFloat64` Unstructured field accessor that could have caused it to return rounded float64 values instead of errors when accessing very large int64 values. ([#128099](https://github.com/kubernetes/kubernetes/pull/128099), [@benluddy](https://github.com/benluddy))

## Changelog since v1.16.1

### Other notable changes

* Fixed panic when accessing CustomResources of a CRD with x-kubernetes-int-or-string. ([#83789](https://github.com/kubernetes/kubernetes/pull/83789), [@sttts](https://github.com/sttts))

* Cluster Autoscaler 1.0.1 ([#54298](https://github.com/kubernetes/kubernetes/pull/54298), [@mwielgus](https://github.com/mwielgus))
* Resolves forbidden error when accessing replicasets and daemonsets via the apps API group ([#54309](https://github.com/kubernetes/kubernetes/pull/54309), [@liggitt](https://github.com/liggitt))

- Fix counting error in service/nodeport/loadbalancer quota check ([#97451](https://github.com/kubernetes/kubernetes/pull/97451), [@pacoxu](https://github.com/pacoxu)) [SIG API Machinery, Network and Testing]
- Fix errors when accessing Windows container stats for Dockershim ([#98510](https://github.com/kubernetes/kubernetes/pull/98510), [@jsturtevant](https://github.com/jsturtevant)) [SIG Node and Windows]