getSemanticMinorVersion example

  public function getCoverageInfo() {
    if (empty($this->releases[$this->existingVersion])) {
      // If the existing version does not have a release, we cannot get the       // security coverage information.       return [];
    }
    $info = [];
    $existing_release_version = ExtensionVersion::createFromVersionString($this->existingVersion);

    // Check if the installed version has a specific end date defined.     $version_suffix = $existing_release_version->getMajorVersion() . '_' . $this->getSemanticMinorVersion($this->existingVersion);
    if (defined("self::SECURITY_COVERAGE_END_DATE_$version_suffix")) {
      $info['security_coverage_end_date'] = constant("self::SECURITY_COVERAGE_END_DATE_$version_suffix");
      $info['security_coverage_ending_warn_date'] =
        defined("self::SECURITY_COVERAGE_ENDING_WARN_DATE_$version_suffix")
          ? constant("self::SECURITY_COVERAGE_ENDING_WARN_DATE_$version_suffix")
          : NULL;
    }
    elseif ($security_coverage_until_version = $this->getSecurityCoverageUntilVersion()) {
      $info['security_coverage_end_version'] = $security_coverage_until_version;
      $info['additional_minors_coverage'] = $this->getAdditionalSecurityCoveredMinors($security_coverage_until_version);
    }