- Exposed `rest.DefaultServerUrlFor` function. ([#118055](https://github.com/kubernetes/kubernetes/pull/118055),...

- Added support for projected volume in describe function  ([#70158](https://github.com/kubernetes/kubernetes/pull/70158), [@WanLinghao](https://github.com/WanLinghao))

- Removed the function Parallelize, please convert to use the function ParallelizeUntil. ([#76595](https://github.com/kubernetes/kubernetes/pull/76595), [@danielqsj](https://github.com/danielqsj))

### Apps

*   Support for GetMountRefs function added; warning messages no longer displayed. ([#54670](https://github.com/kubernetes/kubernetes/pull/54670), [#52401](https://github.com/kubernetes/kubernetes/pull/52401),[ @andyzhangx](https://github.com/andyzhangx))

### Feature

- Add NeedResize function to kubernetes/mount-utils, user can call this function to determine if fs need to be resized ([#101253](https://github.com/kubernetes/kubernetes/pull/101253), [@AndyXiangLi](https://github.com/AndyXiangLi)) [SIG Storage]

- DynamicFakeClient now exposes its tracker via a `Tracker()` function ([#100085](https://github.com/kubernetes/kubernetes/pull/100085), [@markusthoemmes](https://github.com/markusthoemmes)) [SIG API Machinery]

## Other notable changes

### API Machinery

- Remove `GetReference()` and `GetPartialReference()` function from `pkg/api/ref`, as the same function exists also in `staging/src/k8s.io/client-go/tools/ref` ([#80361](https://github.com/kubernetes/kubernetes/pull/80361), [@wojtek-t](https://github.com/wojtek-t))

   ([#122508](https://github.com/kubernetes/kubernetes/pull/122508), [@carlory](https://github.com/carlory))
- Restored the `--verify-only` function in code generation wrappers.
   ([#123261](https://github.com/kubernetes/kubernetes/pull/123261), [@skitt](https://github.com/skitt))

  * This will ensure certain commands in 1.5 versions of kubectl continue function when run against a 1.6 server. (e.g. `kubectl edit deployment`)
* Taint
  * The `taint` command will not function in a skewed 1.5 / 1.6 environment - client and server versions must match (See Action required section above)

		lg.Printf(format, args...)
	} else {
		log.Printf(format, args...)
	}
}

// errno returns v's underlying uintptr, else 0.
//
// TODO: remove this helper function once http2 can use build
// tags. See comment in isClosedConnError.
func http2errno(v error) uintptr {
	if rv := reflect.ValueOf(v); rv.Kind() == reflect.Uintptr {
		return uintptr(rv.Uint())
	}
	return 0