}

// Compare returns -1, 0, or +1 depending on whether
// x < y, x == y, or x > y, interpreted as Go versions.
// The versions x and y must begin with a "go" prefix: "go1.21" not "1.21".
// Invalid versions, including the empty string, compare less than
// valid versions and equal to each other.
// The language version "go1.21" compares less than the
// release candidate and eventual releases "go1.21rc1" and "go1.21.0".

// Internal helper: returns normalized build version (with "v" prefix if needed)
// If input doesn't match known version pattern, returns empty string.
func normalizedBuildVersion(version string) string {
	if kubeReleaseRegex.MatchString(version) {
		if strings.HasPrefix(version, "v") {
			return version
		}
		return "v" + version
	}
	return ""
}

// Internal helper: split version parts,

// license that can be found in the LICENSE file.

package version

import (
	"fmt"
	"io"

	"internal/trace/event"
	"internal/trace/event/go122"
)

// Version represents the version of a trace file.
type Version uint32

const (
	Go111   Version = 11
	Go119   Version = 19
	Go121   Version = 21
	Go122   Version = 22
	Go123   Version = 23
	Current         = Go123
)

)

// allowVersion reports whether the current package at the given position
// is allowed to use version v. If the position is unknown, the specified
// module version (Config.GoVersion) is used. If that version is invalid,
// allowVersion returns true.
func (check *Checker) allowVersion(at poser, v goVersion) bool {
	fileVersion := check.conf.GoVersion
	if pos := at.Pos(); pos.IsKnown() {

#    KUBE_GIT_VERSION - "vX.Y" used to indicate the last release version.
#    KUBE_GIT_MAJOR - The major part of the version
#    KUBE_GIT_MINOR - The minor component of the version

# Grovels through git to set a set of env variables.
#
# If KUBE_GIT_VERSION_FILE, this function will load from that file instead of
# querying git.
kube::version::get_version_vars() {
  if [[ -n ${KUBE_GIT_VERSION_FILE-} ]]; then

		"Proceeding with the installation, but you might experience problems. " +
		"See https://istio.io/latest/docs/releases/supported-releases/ for a list of supported versions.\n"
)

// CheckKubernetesVersion checks if this Istio version is supported in the k8s version
func CheckKubernetesVersion(versionInfo *version.Info) (bool, error) {

## Verfügbare Versionen

Die verfügbaren Versionen können Sie in den [Release Notes](../release-notes.md){.internal-link target=_blank} einsehen (z. B. um zu überprüfen, welches die neueste Version ist).

## Über Versionen

	// goStrictVersion is the Go version at which the Go versions
	// became "strict" in the sense that, restricted to modules at this version
	// or later, every module must have a go version line ≥ all its dependencies.
	// It is also the version after which "too new" a version is considered a fatal error.
	GoStrictVersion = "1.21"

	// ExplicitModulesTxtImportVersion is the Go version at which vendored packages need to be present

)

// allowVersion reports whether the current package at the given position
// is allowed to use version v. If the position is unknown, the specified
// module version (Config.GoVersion) is used. If that version is invalid,
// allowVersion returns true.
func (check *Checker) allowVersion(at positioner, v goVersion) bool {
	fileVersion := check.conf.GoVersion
	if pos := at.Pos(); pos.IsValid() {

  istioctl x version

  # Retrieve version information directly from the control plane, using RSA certificate security
  # (Certificates must be obtained before this step.  The --cert-dir flag lets istioctl bypass the Kubernetes API server.)
  istioctl x version --xds-address istio.example.com:15012 --cert-dir ~/.istio-certs