Changes from version 0.4 to 1.0: Made a data type for extension in 460 Changes from version 0.3 to 0.4: ElectionEventName changed to Event Value leg of selection made optional and this area of Option simplified ID attribute of Option removed Option made optional to allow for abstentions Optional BallotReference added (used in 460 for electronically counted paper votes) xsd:any made optional Changes from version 0.2 to 0.3: Addition of Reporting Unit Update to AuditInformation