Hi JCP,
Removal of the additionalEvent extension point has been recognised as an inadvertent error resulting from refactoring of the Events models in FpML 5-8. The Architecture working group is working on reinstating the element in FpML 5-9, and the intention is to issue an erratum for 5-8.
In general, schema components should not be withdrawn in a minor verion (FpML guarantees backward compatibility within a major version series, unless for exceptional reasons which must be endorsed by the Standards committee).
You can follow the recent discussions on additionalEvent on the AWG mailing list at: fpml.aws.isda.org/mg_groups/fpml-awg/
Best regards,
Harry McAllister
