* `kubectl wait` is a new command that allows waiting for one or more resources to be deleted or to reach a specific condition. It adds a `kubectl wait --for=[delete|condition=condition-name] resource/string` command. ([#64034](https://github.com/kubernetes/kubernetes/pull/64034), [@deads2k](https://github.com/deads2k))

- Node shutdown controller made a best effort to wait for CSI Drivers to complete the volume teardown process according to the pod priority groups. ([#125070](https://github.com/kubernetes/kubernetes/pull/125070), [@torredil](https://github.com/torredil)) [SIG Node, Storage and Testing]

   ([#112643](https://github.com/kubernetes/kubernetes/pull/112643), [@SergeyKanzhelev](https://github.com/SergeyKanzhelev))
- `kubectl wait` command with `jsonpath` flag will wait for target path until timeout.
   ([#109525](https://github.com/kubernetes/kubernetes/pull/109525), [@jonyhy96](https://github.com/jonyhy96))

### Feature

  * **WARNING:** A [known issue](https://github.com/kubernetes/kubernetes/issues/44041)
    in v1.6.0 causes `Pod.Spec.HostPid` (using the host PID namespace for the pod) to always
    be false. Please wait for v1.6.2, which will include a fix for this issue.
* Various scheduling features have graduated to beta:
  * You can now use [multiple schedulers](https://kubernetes.io/docs/tutorials/clusters/multiple-schedulers/)

        }
        checkState(whenClosed == null);
        return whenClosed = new CountDownLatch(1);
      }
    }
  }

  /**
   * Returns an object that can be used to wait until this objects' deferred closeables have all had
   * {@link Runnable}s that close them submitted to each one's closing {@link Executor}.
   */
  @VisibleForTesting
  CountDownLatch whenClosedCountDown() {

    callback.await(server.url("/a")).assertBody("abc")
    client.newCall(Request.Builder().url(server.url("/b")).build()).enqueue(callback)
    callback.await(server.url("/b")).assertBody("def")
    client.newCall(Request.Builder().url(server.url("/c")).build()).enqueue(callback)
    callback.await(server.url("/c")).assertBody("ghi")

```
mc cp ~/images.jpg myminio/images
.../images.jpg:  8.31 KB / 8.31 KB ┃▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓┃ 100.00% 59.42 KB/s 0s
```

Wait a few moments, then check the bucket’s contents with mc ls — you will see a thumbnail appear.

```
mc ls myminio/images-thumbnail
[2017-02-08 11:39:40 IST]   992B images-thumbnail.jpg
```

- Fix issues when supported huge page sizes changes ([#80831](https://github.com/kubernetes/kubernetes/pull/80831), [@odinuge](https://github.com/odinuge)) [SIG Node and Testing]
- Fix kube-apiserver startup to wait for APIServices to be installed into the HTTP handler before reporting readiness. ([#89147](https://github.com/kubernetes/kubernetes/pull/89147), [@sttts](https://github.com/sttts)) [SIG API Machinery]

- Kube-proxy: Removed the iptables CLI wait interval flag. ([#131961](https://github.com/kubernetes/kubernetes/pull/131961), [@cyclinder](https://github.com/cyclinder))

* Fix the bug where kubelet in the standalone mode would wait for the update from the apiserver source. ([#59276](https://github.com/kubernetes/kubernetes/pull/59276), [@roboll](https://github.com/roboll))