- 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

- 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))

  <mime-type type="application/x-msdownload;format=pe">
    <sub-class-of type="application/x-msdownload"/>
    <magic priority="55">
      <!-- Technically the header offset is stored at 0x3c, and isn't a -->
      <!-- constant, but it's almost always set to start at 0x80, 0xb0, -->
      <!-- 0xd0 or 0xf0. Will always have the MZ msdoc header too. -->
      <match value="MZ" type="string" offset="0">

* 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))

pkg regexp/syntax, const ErrMissingRepeatArgument ErrorCode
pkg regexp/syntax, const ErrTrailingBackslash ErrorCode
pkg regexp/syntax, const FoldCase Flags
pkg regexp/syntax, const InstAlt InstOp
pkg regexp/syntax, const InstAltMatch InstOp
pkg regexp/syntax, const InstCapture InstOp
pkg regexp/syntax, const InstEmptyWidth InstOp
pkg regexp/syntax, const InstFail InstOp

pkg syscall (linux-arm-cgo), type Timeval struct, Usec int32
pkg syscall (linux-arm-cgo), type Timex struct
pkg syscall (linux-arm-cgo), type Timex struct, Calcnt int32
pkg syscall (linux-arm-cgo), type Timex struct, Constant int32
pkg syscall (linux-arm-cgo), type Timex struct, Errcnt int32
pkg syscall (linux-arm-cgo), type Timex struct, Esterror int32
pkg syscall (linux-arm-cgo), type Timex struct, Freq int32

pkg regexp/syntax, const ErrUnexpectedParen = "unexpected )"
pkg regexp/syntax, const ErrUnexpectedParen ErrorCode
pkg regexp/syntax, const FoldCase = 1
pkg regexp/syntax, const InstAlt = 0
pkg regexp/syntax, const InstAltMatch = 1
pkg regexp/syntax, const InstCapture = 2
pkg regexp/syntax, const InstEmptyWidth = 3
pkg regexp/syntax, const InstFail = 5
pkg regexp/syntax, const InstMatch = 4