// Data about the Event series this event represents or nil if it's a singleton Event.
  // +optional
  optional EventSeries series = 11;

  // What action was taken/failed regarding to the Regarding object.
  // +optional
  optional string action = 12;

  // Optional secondary object for more complex actions.
  // +optional
  optional ObjectReference related = 13;

	"series":             "Data about the Event series this event represents or nil if it's a singleton Event.",
	"action":             "What action was taken/failed regarding to the Regarding object.",
	"related":            "Optional secondary object for more complex actions.",
	"reportingComponent": "Name of the controller that emitted this Event, e.g. `kubernetes.io/kubelet`.",

	// +optional
	Series *EventSeries `json:"series,omitempty" protobuf:"bytes,11,opt,name=series"`

	// What action was taken/failed regarding to the Regarding object.
	// +optional
	Action string `json:"action,omitempty" protobuf:"bytes,12,opt,name=action"`

	// Optional secondary object for more complex actions.
	// +optional

  // Data about the Event series this event represents or nil if it's a singleton Event.
  // +optional
  optional EventSeries series = 11;

  // What action was taken/failed regarding to the Regarding object.
  // +optional
  optional string action = 12;

  // Optional secondary object for more complex actions.
  // +optional
  optional ObjectReference related = 13;

                          description: Interface for the destination
                          type: string
                        learnedFrom:
                          description: LearnedFrom contains information regarding
                            where this route originated.
                          properties:
                            peerIP:
                              description: If sourceType is NodeMesh or BGPPeer, IP

	EventTime metav1.MicroTime

	// Data about the Event series this event represents or nil if it's a singleton Event.
	// +optional
	Series *EventSeries

	// What action was taken/failed regarding to the Regarding object.
	// +optional
	Action string

	// Optional secondary object for more complex actions.
	// +optional
	Related *ObjectReference

- kubeadm: remove misleading error message regarding image pulling ([#66658](https://github.com/kubernetes/kubernetes/pull/66658), [@dixudx](https://github.com/dixudx))

                                    follow the guidance from the RFC: https://www.rfc-editor.org/rfc/rfc7230.html#section-3.2.2
                                    regarding processing a repeated header, with special
                                    handling for \"Set-Cookie\"."
                                  maxLength: 256
                                  minLength: 1

### Kubernetes release cadence change

We all have to adapt to change in our lives, and especially so in the past year. The Kubernetes release team was also affected from the COVID-19 pandemic and has listened to its user base regarding the number of releases in a calendar year. From April 23, 2021 it was made official that Kubernetes release cadence has reduced from 4 releases per year to 3 releases per year.

- The in-tree Azure plugin has been deprecated. The Azure kubelogin plugin serves as an out-of-tree replacement via the kubectl/client-go credential plugin mechanism.  Users will now see a warning in the logs regarding this deprecation. ([#107904](https://github.com/kubernetes/kubernetes/pull/107904), [@sabbey37](https://github.com/sabbey37))