Loading custom converters ion web.config - beta 1

If previous versions this worked

<microsoft.web>
<converters>
<addtype="Microsoft.Web.Script.Serialization.Converters.DataSetConverter"/>
<addtype="Microsoft.Web.Script.Serialization.Converters.DataRowConverter"/>
<addtype="Microsoft.Web.Script.Serialization.Converters.DataTableConverter"/>
<addtype="MyCustomConverter"/>
</converters>
</microsoft.web>

this doesn't seem to work in the beta, anyone know how to do this?

This section has been moved to:

<microsoft.web>
<scripting>
<webServices>
<jsonSerialization maxJsonLength="1000">
<converters>
<add name="ConvertMe" type="Acme.SubAcme.ConvertMeTypeConverter"/>
</converters>
</jsonSerialization
Hope that helps,
-Hao