The long-awaited successor to UBL 2.0 (2006) has begun its fourth public review. See https://lists.oasis-open.org/archives/ubl/201305/msg00021.html. Changes from the third public review draft include minor corrections to the documentation and several substantive additions to address issues raised on behalf of the European Commission. The review period ends 8 June 2013 at 23:59 GMT.
About UBL 2.1