==== Update Notification Table (UNT)

Defined by DVB in <<ETSI-101-211>>.

[source,xml]
----
<UNT version="uint5, default=0"
     current="bool, default=true"
     action_type="uint8, default=0x01"
     OUI="uint24, required"
     processing_order="uint8, default=0x00">

  <!-- Common descriptors, apply to all SSU -->
  <DESCRIPTOR_LIST>

  <!-- One per set of devices -->
  <devices>

    <!-- More than one allowed, each one is an individual descriptor -->
    <!-- inside compatibilityDescriptor() -->
    <compatibilityDescriptor
        descriptorType="uint8, required"
        specifierType="uint8, default=0x01"
        specifierData="uint24, required"
        model="uint16, default=0x00"
        version="uint16, default=0x00">
      <!-- Several subdescriptors -->
      <subDescriptor subDescriptorType="uint8, required">
        Hexadecimal content
      </subDescriptor>
    </compatibilityDescriptor>

    <!-- One per platform -->
    <platform>
      <target>
        <DESCRIPTOR_LIST>
      </target>
      <operational>
        <DESCRIPTOR_LIST>
      </operational>
    </platform>
  </devices>

</UNT>
----
