* Cross-build hyperkube and debian-iptables for ARM. Also add a flannel image ([#21617](https://github.com/kubernetes/kubernetes/pull/21617), [@luxas](https://github.com/luxas))
* Add a timeout to the sshDialer to prevent indefinite hangs. ([#23843](https://github.com/kubernetes/kubernetes/pull/23843), [@cjcullen](https://github.com/cjcullen))

* Fixes a regression proxying responses from aggregated API servers which could cause watch requests to hang until the first event was received ([#75887](https://github.com/kubernetes/kubernetes/pull/75887), [@liggitt](https://github.com/liggitt))

* fix get azure accounts timeout issue when there is no out-bound IP ([#74191](https://github.com/kubernetes/kubernetes/pull/74191), [@andyzhangx](https://github.com/andyzhangx))
* kubelet: resolved hang/timeout issues when running large numbers of pods with unique configmap/secret references ([#74755](https://github.com/kubernetes/kubernetes/pull/74755), [@liggitt](https://github.com/liggitt))

* Change merge key for VolumeMount to mountPath ([#35071](https://github.com/kubernetes/kubernetes/pull/35071), [@thockin](https://github.com/thockin))
* kubelet: storage: don't hang kubelet on unresponsive nfs ([#35038](https://github.com/kubernetes/kubernetes/pull/35038), [@sjenning](https://github.com/sjenning))

* kubelet to master communication when doing node status updates now has a timeout to prevent indefinite hangs ([#52176](https://github.com/kubernetes/kubernetes/pull/52176), [@liggitt](https://github.com/liggitt))

* Corrected a race condition in bootstrapping aggregated cluster roles in new HA clusters ([#63761](https://github.com/kubernetes/kubernetes/pull/63761), [@liggitt](https://github.com/liggitt))
* kubelet: fix hangs in updating Node status after network interruptions/changes between the kubelet and API server ([#63492](https://github.com/kubernetes/kubernetes/pull/63492), [@liggitt](https://github.com/liggitt))

* Add a way to pass extra arguments to etcd. ([#63961](https://github.com/kubernetes/kubernetes/pull/63961), [@mborsz](https://github.com/mborsz))
* kubelet: fix hangs in updating Node status after network interruptions/changes between the kubelet and API server ([#63492](https://github.com/kubernetes/kubernetes/pull/63492), [@liggitt](https://github.com/liggitt))



# v1.8.13

* GCE: provide an option to disable docker's live-restore on COS/ubuntu ([#55260](https://github.com/kubernetes/kubernetes/pull/55260), [@yujuhong](https://github.com/yujuhong))
* Fix kube-proxy hang due to panic when requesting a closed healthcheck. ([#46450](https://github.com/kubernetes/kubernetes/pull/46450), [@MrHohn](https://github.com/MrHohn))

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### Failing Test

- E2e tests: fixed bug in the e2e image `agnhost:2.38` which hangs instead of exiting if a `SIGTERM` signal is received and the `shutdown-delay` option is `0`. ([#110214](https://github.com/kubernetes/kubernetes/pull/110214), [@aojea](https://github.com/aojea))