V7 to V8 DifferencesMessagesBookControlVersion: 8.4.10.2Schema Differences: BookControl (ID: 1635) V8 Message Definition 3 added 1 removed PRIMARY KEY #V7 Field NameType#V8 Field NameType11clientFirmString(16) BODY #V7 Field NameType#V8 Field NameTypeuserNameString(24)151modifiedByString(24)154modifiedInenum : SysEnvironment