pkg net/http, type Cookie struct
pkg net/http, type Cookie struct, Domain string
pkg net/http, type Cookie struct, Expires time.Time
pkg net/http, type Cookie struct, HttpOnly bool
pkg net/http, type Cookie struct, MaxAge int
pkg net/http, type Cookie struct, Name string
pkg net/http, type Cookie struct, Path string
pkg net/http, type Cookie struct, Raw string
pkg net/http, type Cookie struct, RawExpires string

### CSIDriver policy for FSGroup graduates to Beta

The FSGroup's CSIDriver Policy is now beta in 1.20. This allows CSIDrivers to explicitly indicate if they want Kubernetes to manage permissions and ownership for their volumes via `fsgroup`. 

### Security Improvements for CSI Drivers (Alpha)

    String COOKIE_SEARCH_PARAMETER_SECURE = "cookie.search.parameter.secure";

    /** The key of the configuration. e.g. 60 */
    String COOKIE_SEARCH_PARAMETER_max_age = "cookie.search.parameter.max_age";

    /** The key of the configuration. e.g.  */
    String COOKIE_SEARCH_PARAMETER_DOMAIN = "cookie.search.parameter.domain";

    /** The key of the configuration. e.g. / */

* Fixed API server panic during concurrent GET or LIST requests with non-empty `resourceVersion`. ([#65092](https://github.com/kubernetes/kubernetes/pull/65092), [@sttts](https://github.com/sttts))
* Properly manage security groups for loadbalancer services on OpenStack. ([#65373](https://github.com/kubernetes/kubernetes/pull/65373), [@multi-io](https://github.com/multi-io))

        </field>
      </fields>
    </class>
    <class>
      <name>IssueManagement</name>
      <description>Information about the issue tracking (or bug tracking) system used to manage this
        project.</description>
      <version>4.0.0+</version>
      <fields>
        <field>
          <name>system</name>
          <version>4.0.0+</version>

* **Other objects**: no changes unless you explicitly request orphaning.

## Action Required Before Upgrading

- If you are using Kubernetes to manage `docker` containers, please be aware Kubernetes has been validated to work with docker 1.9.1, docker 1.11.2 (#23397), and docker 1.12.0 (#28698)

- Updated the control plane's trust anchor publisher to create and manage a new ClusterTrustBundle object, associated with the `kubernetes.io/kube-apiserver-serving` X.509 certificate signer. This ClusterTrustBundle contains a PEM bundle in its payload that you can use to verify kube-apiserver serving certificates. ([#...

#### DaemonSet
* [beta] DaemonSet supports history and rollback. See [Performing a Rollback on a DaemonSet](https://kubernetes.io/docs/tasks/manage-daemon/rollback-daemon-set/).

#### Deployments

- Graduated the `MultiCIDRServiceAllocator` feature gate to stable, and the `DisableAllocatorDualWrite` feature gate to beta (disabled by default).
**Action required** for Kubernetes cluster administrators and for distributions that manage the cluster Service CIDR.
Kubernetes now allows users to define the cluster Service CIDR via an API object: ServiceCIDR.

* add external resource group support for azure disk ([#64427](https://github.com/kubernetes/kubernetes/pull/64427), [@andyzhangx](https://github.com/andyzhangx))
* Properly manage security groups for loadbalancer services on OpenStack. ([#65373](https://github.com/kubernetes/kubernetes/pull/65373), [@multi-io](https://github.com/multi-io))