#### Deployments
* [beta] Deployments uses a hashing collision avoidance mechanism that ensures new rollouts will not block on hashing collisions anymore. ([kubernetes/features#287](https://github.com/kubernetes/enhancements/issues/287))

#### PodDisruptionBudget

etes/kubernetes/pull/59666), [@mtaufen](https://github.com/mtaufen))

* [GCP kube-up.sh] Variables that were part of kube-env that were only used for kubelet flags are no longer being set, and are being replaced by the more portable mechanism of the kubelet configuration file. The individual variables in the kube-env metadata entry were never meant to be a stable interface and this release note only applies if you are depending on them. ([#60020](https://github.com/kubernetes/kubernetes/pull/60020),...

- Deprecate `--record` flag in `kubectl`. The `--record` flag is being replaced with the [mechanism](https://github.com/kubernetes/enhancements/tree/master/keps/sig-cli/859-kubectl-headers) which annotates HTTP requests with kubectl command details. ([#102873](https://github.com/kubernetes/kubernetes/pull/102873), [@soltysh](https://github.com/soltysh))...

- Added a mechanism for configurable container restarts: _container-level restart rules_. This was an alpha feature behind the `ContainerRestartRules` feature gate. ([#132642](https://github.com/kubernetes/kubernetes/pull/132642), [@yuanwang04](https://github.com/yuanwang04))...

- Added the correct error when eviction is blocked due to the failSafe mechanism of the `DisruptionController`. ([#133097](https://github.com/kubernetes/kubernetes/pull/133097), [@kei01234kei](https://github.com/kei01234kei)) [SIG Apps and Node]

- Kubeadm: respect user specified image repository when using Kubernetes ci version ([#111017](https://github.com/kubernetes/kubernetes/pull/111017), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]
- Kubeadm: support retry mechanism for removing container in reset phase ([#110837](https://github.com/kubernetes/kubernetes/pull/110837), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]

* Federated DaemonSet controller. Supports all the API that regular DaemonSet has. ([#34319](https://github.com/kubernetes/kubernetes/pull/34319), [@mwielgus](https://github.com/mwielgus))
* New federation deployment mechanism now allows non-GCP clusters. ([#34620](https://github.com/kubernetes/kubernetes/pull/34620), [@madhusudancs](https://github.com/madhusudancs))
  * Writes the federation kubeconfig to the local kubeconfig file.

A <code>nil</code> map is equivalent to an empty map except that no elements
may be added.
</p>

<h3 id="Channel_types">Channel types</h3>

<p>
A channel provides a mechanism for
<a href="#Go_statements">concurrently executing functions</a>
to communicate by
<a href="#Send_statements">sending</a> and
<a href="#Receive_operator">receiving</a>
values of a specified element type.

* Added service annotation for AWS ELB SSL policy ([#54507](https://github.com/kubernetes/kubernetes/pull/54507), [@micahhausler](https://github.com/micahhausler))
* Implement correction mechanism for dangling volumes attached for deleted pods ([#55491](https://github.com/kubernetes/kubernetes/pull/55491), [@gnufied](https://github.com/gnufied))

#### GCE
* On GCI by default logrotate is disabled for application containers in favor of rotation mechanism provided by docker logging driver. ([#40634](https://github.com/kubernetes/kubernetes/pull/40634), [@crassirostris](https://github.com/crassirostris))

#### GKE