+ <para>
+ From Metaproxy version 1.3.26 and onwards the backend conversion ma
+ also use <ulink url="&url.usemarcon;">USEMARCON</ulink>.
+ If USEMARCON is enabled, the <literal>backend</literal> may include
+ a <literal>usemarcon</literal> element with two attributes:
+ <literal>stage1</literal> and <literal>stage2</literal> that points to
+ conversion files as interpreted by USEMARCON. One or both must be given.
+ </para>