- Extend the XML configuration features: a user can define its own XSLT engine (see ), and the rules about how the images shall be converted can be overwritten (see ) in order to by-pass the limitations shown by the Debian bug #837168.

- Add the (quite old) parameter insert.xref.page.number.para and allow to reference (xref) to a para, simpara, phrase like DocBook FO does.