public Integer getMinorStackVersion() {
    if(StringUtils.isNotEmpty(versionId)) {
      String majorVersion = StringUtils.substring(versionId, 6, 7);
      if(StringUtils.isNotEmpty(majorVersion)) {
        return Integer.parseInt(majorVersion);
      }
    }
    return null;
  }
Get the minor stack version for this cluster.

@return the minor stack version
contrib/ambari-scom/ambari-scom-server/src/main/java/org/apache/ambari/msi/ClusterDefinition.java