literal.
</p>


<h2 id="Constants">Constants</h2>

<p>There are <i>boolean constants</i>,
<i>rune constants</i>,
<i>integer constants</i>,
<i>floating-point constants</i>, <i>complex constants</i>,
and <i>string constants</i>. Rune, integer, floating-point,
and complex constants are
collectively called <i>numeric constants</i>.
</p>

<p>
A constant value is represented by a

- Omit comparison with boolean constant ([#101523](https://github.com/kubernetes/kubernetes/pull/101523), [@chuntaochen](https://github.com/chuntaochen)) [SIG CLI and Cloud Provider]

pkg encoding/json, method (*MarshalerError) Unwrap() error
pkg errors, func As(error, interface{}) bool
pkg errors, func Is(error, error) bool
pkg errors, func Unwrap(error) error
pkg go/constant, func Make(interface{}) Value
pkg go/constant, func Val(Value) interface{}
pkg go/token, func IsExported(string) bool
pkg go/token, func IsIdentifier(string) bool
pkg go/token, func IsKeyword(string) bool

* Use online nodes instead of possible nodes when discovering available NUMA nodes ([#83196](https://github.com/kubernetes/kubernetes/pull/83196), [@zouyee](https://github.com/zouyee))
* Fix typos in `certificates.k8s.io/v1beta1` KeyUsage constant names: `UsageContentCommittment` becomes `UsageContentCommitment` and `UsageNetscapSGC` becomes `UsageNetscapeSGC`. ([#82511](https://github.com/kubernetes/kubernetes/pull/82511), [@abursavich](https://github.com/abursavich))

- CEL regex patterns in x-kubernetes-valiation rules are compiled when CRDs are created/updated if the pattern is provided as a string constant in the expression. Any regex compile errors are reported as a CRD create/update validation error. ([#108617](https://github.com/kubernetes/kubernetes/pull/108617), [@jpbetz](https://github.com/jpbetz))

* Fixed OpenAPI Description and Nickname of API objects with subresources ([#49357](https://github.com/kubernetes/kubernetes/pull/49357), [@mbohlool](https://github.com/mbohlool))
* set RBD default values as constant vars ([#49274](https://github.com/kubernetes/kubernetes/pull/49274), [@dixudx](https://github.com/dixudx))

- Made Job controller batching of syncJob invocations enabled unconditionally (it was conditional on JobReadyPods feature before).

- The `ServiceAccountIssuerDiscovery` feature gate is removed. It reached GA in Kubernetes 1.21. ([#103685](https://github.com/kubernetes/kubernetes/pull/103685), [@mengjiao-liu](https://github.com/mengjiao-liu))
- The `constants/variables` from k8s.io for STABLE metrics is now supported. ([#103654](https://github.com/kubernetes/kubernetes/pull/103654), [@coffeepac](https://github.com/coffeepac))

* In case kubeadm can't access the current Kubernetes version remotely and fails to parse the git-based version it falls back to a static predefined value of k8s.io/kubernetes/cmd/kubeadm/app/constants.CurrentKubernetesVersion. ([#72454](https://github.com/kubernetes/kubernetes/pull/72454), [@rojkov](https://github.com/rojkov))