<csw:Transaction service="CSW" version="2.0.2" verboseResponse="true" xmlns:csw="http://www.opengis.net/cat/csw/2.0.2" xmlns:ogc="http://www.opengis.net/ogc">
    <csw:Update>
      <csw:RecordProperty>
        <csw:Name>title</csw:Name>
        <csw:Value>Updated Title</csw:Value>
      </csw:RecordProperty>
      <csw:RecordProperty>
        <csw:Name>date</csw:Name>
        <csw:Value>2015-08-25</csw:Value>
      </csw:RecordProperty>
      <csw:RecordProperty>
        <csw:Name>format</csw:Name>
        <csw:Value></csw:Value>
      </csw:RecordProperty>
      <csw:Constraint version="2.0.0">
        <ogc:Filter>
          <ogc:PropertyIsEqualTo>
            <ogc:PropertyName>title</ogc:PropertyName>
            <ogc:Literal>Aliquam fermentum purus quis arcu</ogc:Literal>
          </ogc:PropertyIsEqualTo>
        </ogc:Filter>
      </csw:Constraint>
    </csw:Update>
</csw:Transaction>

