V7 to V8 DifferencesMessagesSpdrBrokerCancelVersion: 8.4.12.1Schema Differences: SpdrBrokerCancel (ID: 3990) V8 Message Definition 1 added 2 modified PRIMARY KEY #V7 Field NameType#V8 Field NameType16clientFirmString(16) BODY #V7 Field NameType#V8 Field NameTypeuserNameString(24)115modifiedByString(24)engineNameString(20)122engineNameString(32)