tag, err := GetTagVersion(operatorVer.OperatorVersionString)
	if err != nil {
		return fmt.Errorf("fetch Istio version: %v", err)
	}

	// return warning if current date is near the EOL date
	if operatorVer.IsEOL() {
		warnMarker := color.New(color.FgYellow).Add(color.Italic).Sprint("WARNING:")
		fmt.Printf("%s Istio %v may be out of support (EOL) already: see https://istio.io/latest/docs/releases/supported-releases/ for supported releases\n",

and no warnings will be produced if they are used, but they will be deprecated and removed in a future release.

=== Potential breaking changes

==== Kotlin DSL scripts emit compilation warnings

Compilation warnings from Kotlin DSL scripts are printed to the console output.
For example, the use of deprecated APIs in Kotlin DSL will emit warnings each time the script is compiled.

        if (ageMillis + minFreshMillis >= freshMillis) {
          builder.addHeader("Warning", "110 HttpURLConnection \"Response is stale\"")
        }
        val oneDayMillis = 24 * 60 * 60 * 1000L
        if (ageMillis > oneDayMillis && isFreshnessLifetimeHeuristic()) {
          builder.addHeader("Warning", "113 HttpURLConnection \"Heuristic expiration\"")
        }
        return CacheStrategy(null, builder.build())

  //
  // "Deny" specifies that a validation failure results in a denied request.
  //
  // "Warn" specifies that a validation failure is reported to the request client
  // in HTTP Warning headers, with a warning code of 299. Warnings can be sent
  // both for allowed or denied admission responses.
  //
  // "Audit" specifies that a validation failure is included in the published

`--warning-mode=(all,fail,none,summary)`::
Specifies how to log warnings. Default is `summary`.
+
Set to `all` to log all warnings.
+
Set to `fail` to log all warnings and fail the build if there are any warnings.
+
Set to `summary` to suppress all warnings and log a summary at the end of the build.
+

	if directive == "" {
		return metav1.FieldValidationWarn
	}
	return directive
}

// parseYAMLWarnings takes the strict decoding errors from the yaml decoder's output
// and parses each individual warnings, or leaves the warning as is if
// it does not look like a yaml strict decoding error.
func parseYAMLWarnings(errString string) []string {
	var trimmedString string

	if !applicableResources[gr] && !p.delegate.PodSpecExtractor.HasPodSpec(gr) {
		return nil
	}

	result := p.delegate.Validate(ctx, &lazyConvertingAttributes{Attributes: a})
	for _, w := range result.Warnings {
		warning.AddWarning(ctx, "", w)
	}
	if len(result.AuditAnnotations) > 0 {
		annotations := make([]string, len(result.AuditAnnotations)*2)
		i := 0
		for k, v := range result.AuditAnnotations {

	}}

	for _, tc := range testCases {
		t.Run(tc.name, func(t *testing.T) {
			svc := &api.Service{}
			tc.tweakSvc(svc)
			warnings := GetWarningsForService(svc, svc)
			if want, got := tc.numWarnings, len(warnings); got != want {
				t.Errorf("Unexpected warning list: expected %d, got %d\n%q", want, got, warnings)
			}
		})
	}
}

func TestGetWarningsForServiceClusterIPs(t *testing.T) {

of the same action.\n\nThe supported actions values are:\n\n\"Deny\" specifies that a validation failure results in a denied request.\n\n\"Warn\" specifies that a validation failure is reported to the request client in HTTP Warning headers, with a warning code of 299. Warnings can be sent both for allowed or denied admission responses.\n\n\"Audit\" specifies that a validation failure is included in the published audit event for the request. The audit event will contain a `validation.policy.admiss...

						mismatchNotes = append(mismatchNotes, fmt.Sprintf("Warning: Route to subset %s but NO DESTINATION RULE defining subsets!", dest.Destination.Subset))
					} else {
						// Don't bother giving the match conditions, the problem is that there are unknowns in the VirtualService
						mismatchNotes = append(mismatchNotes,