<version>4.0.0+</version>
          <description>
            The frequency for downloading updates - can be
            {@code always},
            {@code daily} (default),
            {@code interval:XXX} (in minutes) or
            {@code never} (only if it doesn't exist locally).
          </description>
          <type>String</type>
        </field>
        <field>
          <name>checksumPolicy</name>

台湾

// xn--nnx388a ("Taiwan", Chinese, variant) : TW
臺灣

// xn--j1amh ("ukr", Cyrillic) : UA
укр

// xn--mgb2ddes ("AlYemen", Arabic) : YE
اليمن

// xxx : http://icmregistry.com
xxx

// ye : http://www.y.net.ye/services/domain_name.htm
ye
com.ye
edu.ye
gov.ye
net.ye
mil.ye
org.ye