- Fixed computing backoff delay when using Job pod failure policy, by including in the backoff delay calculation pod failures ignored from the backoffLimit counter. ([#119434](https://github.com/kubernetes/kubernetes/pull/119434), [@mimowo](https://github.com/mimowo))...

- Kube-apiserver: multiple comma-separated protocols in a single X-Stream-Protocol-Version header are now recognized, in addition to multiple headers, complying with RFC2616 ([#89857](https://github.com/kubernetes/kubernetes/pull/89857), [@tedyu](https://github.com/tedyu)) [SIG API Machinery]

- Kube-apiserver: multiple comma-separated protocols in a single X-Stream-Protocol-Version header are now recognized, in addition to multiple headers, complying with RFC2616 ([#89857](https://github.com/kubernetes/kubernetes/pull/89857), [@tedyu](https://github.com/tedyu)) [SIG API Machinery]

  - Remove redundant logging around calculating node utilization
  - Add configurable `--network` and `--rm` flags for docker in `Makefile`
  - Subtract DaemonSet pods' requests from node allocatable in the denominator while computing node utilization
  - Include taints by condition when determining if a node is unready/still starting
  - Fix `update-vendor.sh` to work on OSX and zsh

* Add a Deployment example for kubectl expose. ([#23222](https://github.com/kubernetes/kubernetes/pull/23222), [@madhusudancs](https://github.com/madhusudancs))
* Use versioned object when computing patch ([#23145](https://github.com/kubernetes/kubernetes/pull/23145), [@liggitt](https://github.com/liggitt))

### Storage

  - Fix a data race in TopologyCache when `AddHints` and `SetNodes` are called concurrently ([#117269](https://github.com/kubernetes/kubernetes/pull/117269), [@tnqn](https://github.com/tnqn)) [SIG Apps and Network]
- Fix computing backoff delay when using Job pod failure policy, by including in the backoff delay calculation pod failures ignored from the backoffLimit counter.
  

* RBAC objects are now stored in etcd in v1 format. After completing an upgrade to 1.9, RBAC objects (Roles, RoleBindings, ClusterRoles, ClusterRoleBindings) should be migrated to ensure all persisted objects are written in `v1` format, prior to `v1alpha1` support being removed in a future release. ([#52950](htt...

* Add a Deployment example for kubectl expose. ([#23222](https://github.com/kubernetes/kubernetes/pull/23222), [@madhusudancs](https://github.com/madhusudancs))
* Use versioned object when computing patch ([#23145](https://github.com/kubernetes/kubernetes/pull/23145), [@liggitt](https://github.com/liggitt))

* Bug fixes:

  * Fix serialization of EnforceNodeAllocatable ([#44606](https://github.com/kubernetes/kubernetes/pull/44606), [@ivan4th](https://github.com/ivan4th))

	* Use OS-specific libs when computing client User-Agent in kubectl, etc. ([#44423](https://github.com/kubernetes/kubernetes/pull/44423), [@monopole](https://github.com/monopole))


#### Instrumentation