This appendix describes interfaces that are under development and aimed at future releases of this specification. At this stage, such interfaces are at best recommended practice, and do not constitute normative requirements of this specification. Applications may not assume that any system provides these interfaces.
We encourage system implementors and ISVs to provide these interfaces, and to provide feedback on their specification to firstname.lastname@example.org. These interfaces may well be further modified during the development process, and may be withdrawn if concensus cannot be reached.