The formatting of a nice message for this event hasn't been implemented yet, so 
I'll just put an XML dump of the event here.

<ns:documentTypeUpdated xmlns:ns="http://outerx.org/daisy/1.0";>
  <ns:oldDocumentType>
    <ns:documentType id="2" lastModified="2005-10-05T09:27:35.000Z" 
lastModifier="123" name="SimpleDocument" deprecated="false" updateCount="2">
      <ns:labels>
        <ns:label locale="pl">Prosty dokument</ns:label>
        <ns:label locale="de">Einfaches Dokument</ns:label>
        <ns:label locale="nl">Eenvoudig document</ns:label>
        <ns:label locale="fr">Document simple</ns:label>
        <ns:label locale="ru">Простой документ</ns:label>
        <ns:label locale="">Simple Document</ns:label>
      </ns:labels>
      <ns:descriptions>
        <ns:description locale="pl">Prosty typ dokumentu.</ns:description>
        <ns:description locale="de">Ein auf das Wesentliche reduzierter 
Dokument-Typ.</ns:description>
        <ns:description locale="nl">Een basis documenttype.</ns:description>
        <ns:description locale="fr">Un type de document simple.</ns:description>
        <ns:description locale="ru">Базовый тип документа.</ns:description>
        <ns:description locale="">A basic document type.</ns:description>
      </ns:descriptions>
      <ns:partTypeUses>
        <ns:partTypeUse partTypeId="2" required="true"/>
      </ns:partTypeUses>
      <ns:fieldTypeUses/>
    </ns:documentType>
  </ns:oldDocumentType>
  <ns:newDocumentType>
    <ns:documentType id="2" lastModified="2006-03-03T14:59:17.118Z" 
lastModifier="123" name="SimpleDocument" deprecated="false" updateCount="3">
      <ns:labels>
        <ns:label locale="pl">Prosty dokument</ns:label>
        <ns:label locale="de">Einfaches Dokument</ns:label>
        <ns:label locale="nl">Eenvoudig document</ns:label>
        <ns:label locale="fr">Document simple</ns:label>
        <ns:label locale="ru">Простой документ</ns:label>
        <ns:label locale="">Simple Document</ns:label>
      </ns:labels>
      <ns:descriptions>
        <ns:description locale="pl">Prosty typ dokumentu.</ns:description>
        <ns:description locale="de">Ein auf das Wesentliche reduzierter 
Dokument-Typ.</ns:description>
        <ns:description locale="nl">Een basis documenttype.</ns:description>
        <ns:description locale="fr">Un type de document simple.</ns:description>
        <ns:description locale="ru">Базовый тип документа.</ns:description>
        <ns:description locale="">A basic document type.</ns:description>
      </ns:descriptions>
      <ns:partTypeUses>
        <ns:partTypeUse partTypeId="2" required="true"/>
      </ns:partTypeUses>
      <ns:fieldTypeUses/>
    </ns:documentType>
  </ns:newDocumentType>
</ns:documentTypeUpdated>