Must be one of <literal>post</literal>,
<literal>get</literal>, <literal>soap</literal> (default)
or <literal>solr</literal>. Version
Must be one of <literal>post</literal>,
<literal>get</literal>, <literal>soap</literal> (default)
or <literal>solr</literal>. Version
purposes (version negotiation with SRU server).
The version is currently not used for Solr Web Services
</para>
purposes (version negotiation with SRU server).
The version is currently not used for Solr Web Services
</para>