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

Technically a minor revision to UBL 2.0 (because the new 2.1 schemas are backward-compatible with all UBL 2.0 documents), UBL 2.1 more than doubles the size of the standard schema library, bringing the total number of XML document types to 65. In addition to the generic supply chain and procurement processes defined in UBL 2.0 (Catalogue, Quotation, Ordering, Fulfilment, Billing, Payment, Statement, Transport Services, Certificate of Origin), UBL 2.1 adds support for eTendering, Vendor Managed Inventory, Intermodal Freight Management, Utility Billing, and Collaborative Planning, Forecasting, and Replenishment. It also adds two supplementary document types, Document Status and Document Status Request.

Aside from adding new document types and areas of functionality, UBL 2.1 also implements a number of improvements across the entire data library. The financial information capabilities of UBL have been enhanced in the areas of financial accounting, payment mandates, trade financing, currency handling, and payments reconciliation in order to support downstream processing of invoices within financial services and enable Straight Through Processing (STP) and paperless trading along the entire financial supply chain. Legal information capabilities have been enhanced through the enrichment of the Party structure to support advanced procurement and global usage, particularly with the inclusion of power of attorney and provisions for single and multiple service providers using business models such as outsourcing, application service provision, and virtual services via cloud computing. Optional support for XAdES (required in the European Union) and other advanced digital signature schemes based on XML DSig is now bundled into the distribution by default, as are current versions of virtually all internationally recognized EDI code lists. On the technical end, the transition to a two-phase model of data verification begun in UBL 2.0 is now complete, enabling total flexibility in the application of code lists within the standard structure, and the several thousand data definitions in the UBL library have been thoroughly revised using an approach designed to aid the user attempting to understand the semantics of UBL instances.

By maintaining complete backward compatibility with all UBL installations since 2006, UBL 2.1 adds these technical refinements and new functionalities with a minimum of disturbance to its extensive and rapidly growing application base.