inside a <a href="#Function_declarations">function body</a> if the variable is
never used.
</p>

<h3 id="Short_variable_declarations">Short variable declarations</h3>

<p>
A <i>short variable declaration</i> uses the syntax:
</p>

<pre class="ebnf">
ShortVarDecl = IdentifierList ":=" ExpressionList .
</pre>

<p>

  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

  // The object that this event is about.
  optional ObjectReference involvedObject = 2;

  // This should be a short, machine understandable string that gives the reason
  // for the transition into the object's current status.
  // TODO: provide exact specification for format.
  // +optional
  optional string reason = 3;

 
## Changes by Kind

### Deprecation

- Changed `kubectl version` default output to be identical to what `kubectl version --short` printed,
  and removed `--short` flag entirely. ([#116720](https://github.com/kubernetes/kubernetes/pull/116720), [@soltysh](https://github.com/soltysh))

* Stability: Make Pod delete event handling of scheduler more robust. ([#58712](https://github.com/kubernetes/kubernetes/pull/58712), [@bsalamat](https://github.com/bsalamat))* Allow scheduler set AlwaysCheckAllPredicates, short circuit all predicates if one predicate fails can greatly improve the scheduling performance. ([#56926](https://github.com/kubernetes/kubernetes/pull/56926), [@wgliang](https://github.com/wgliang))

- The Job controller now creates pods in batches instead of all at once. ([#49142](https://github.com/kubernetes/kubernetes/pull/49142), [@joelsmith](https://github.com/joelsmith)).

- Short `.spec.ActiveDeadlineSeconds` is properly applied to a Job. ([#48545](https://github.com/kubernetes/kubernetes/pull/48454), [@weiwei4](https://github.com/weiwei04)).


#### CLI Changes

### AWS

#### Apps

- Hyperkube short aliases have been removed from source code, because hyperkube docker image currently creates these aliases. ([#76953](https://github.com/kubernetes/kubernetes/pull/76953), [@Rand01ph](https://github.com/Rand01ph))

#### Auth

    <!-- do we want a separate mime for this? -->
    <root-XML localName="ONIXmessage" namespaceURI="http://ns.editeur.org/onix/3.0/short"/>
    <root-XML localName="ONIXMessage"/>
    <sub-class-of type="application/xml"/>
  </mime-type>

  <mime-type type="application/onix-message-short+xml">
    <_comment>ONline Information eXchange (ONIX) for books</_comment>

- `data_key_generation_latencies_microseconds` -> `data_key_generation_latencies_seconds`

## Notable Features

- Increased the histogram resolution of the API server client certificate  to accommodate short-lived (< 6h) client certificates. ([#74806](https://github.com/kubernetes/kubernetes/pull/74806), [@mxinden](https://github.com/mxinden))

   ([#123271](https://github.com/kubernetes/kubernetes/pull/123271), [@neolit123](https://github.com/neolit123))