String INDEX_ADMIN_LONG_FIELDS = "index.admin.long.fields";

    /** The key of the configuration. e.g. boost */
    String INDEX_ADMIN_FLOAT_FIELDS = "index.admin.float.fields";

    /** The key of the configuration. e.g.  */
    String INDEX_ADMIN_DOUBLE_FIELDS = "index.admin.double.fields";

    /** The key of the configuration. e.g. url,title,role,boost */
    String INDEX_ADMIN_REQUIRED_FIELDS = "index.admin.required.fields";

  // Specifies the OS of the containers in the pod.
  // Some pod and container fields are restricted if this is set.
  //
  // If the OS field is set to linux, the following fields must be unset:
  // -securityContext.windowsOptions
  //
  // If the OS field is set to windows, following fields must be unset:
  // - spec.hostPID
  // - spec.hostIPC
  // - spec.hostUsers

and <code>T</code> itself may not be
a pointer type. The unqualified type name acts as the field name.
</p>

<pre>
// A struct with four embedded fields of types T1, *T2, P.T3 and *P.T4
struct {
	T1        // field name is T1
	*T2       // field name is T2
	P.T3      // field name is T3
	*P.T4     // field name is T4
	x, y int  // field names are x and y
}
</pre>

<p>

- Added etcd_object_count metrics for CustomResources. ([#65983](https://github.com/kubernetes/kubernetes/pull/65983), [@sttts](https://github.com/sttts))
- The OpenAPI version field will now be properly autopopulated without needing other OpenAPI fields present in generic API server code. ([#66411](https://github.com/kubernetes/kubernetes/pull/66411), [@DirectXMan12](https://github.com/DirectXMan12))

- Add Probe-level terminationGracePeriodSeconds field ([#99375](https://github.com/kubernetes/kubernetes/pull/99375), [@ehashman](https://github.com/ehashman)) [SIG API Machinery, Apps, Node and Testing]

  * Previously this would cause the command to fail regardless of whether or not the field was present in the object model
  * Now the command will succeed even if the sort-by field is missing from one or more of the objects

- The `kubectl diff` changed to ignore managed fields by default, and a new --show-managed-fields flag has been added to allow you to include managed fields in the diff. ([#111319](https://github.com/kubernetes/kubernetes/pull/111319), [@brianpursley](https://github.com/brianpursley))

* ACTION REQUIRED: The Node.Status.Volumes.Attached.DevicePath field is now unset for CSI volumes. Update any external controllers that depend on this field. ([#75799](https://github.com/kubernetes/kubernetes/pull/75799), [@msau42](https://github.com/msau42))...

- Server-side apply behavior has been regularized in the case where a field is removed from the applied configuration. Removed fields which have no other owners are deleted from the live object, or reset to their default value if they have one. Safe ownership transfers, such as the transfer of a `replicas` field from a user to an HPA without resetting to the default value are documented in [Transferring Ownership](https://kubernetes.io/do...

  - true/strict - perform validation and error the request on any invalid fields in the ojbect. It will attempt to perform server-side validation if it is enabled on the apiserver, otherwise it will fall back to client-side validation.
  - warn - perform server-side validation and warn on any invalid fields (but ultimately let the request succeed by dropping any invalid fields from the object). If validation is not available on the server, perform no validation.