How many messages and tags does FIX 4.4 add to FIX 4.3?

FIX 4.4 defines 93 message types and 912 fields in the standard dictionary, against 68 and 635 in FIX 4.3: 25 messages and 298 fields added, 21 fields removed.

FIX 4.3 vs FIX 4.4: What Changed

FIX 4.3 introduced the component model (Parties, Instrument) and most of the execution reporting changes; FIX 4.4 finishes them. It removes the last FIX 4.2-style execution codes, renames a set of settlement fields and adds the messages for trade capture acknowledgement, position management and collateral.

Message types: 68 to 93
Messages added: 25
Fields: 635 to 912
Fields added / removed: 298 / 21

BeginString: FIX.4.3 and FIX.4.4. Counts come from the standard data dictionaries.

Migrating from FIX 4.3 to FIX 4.4

150=1 and 150=2 are removed. FIX 4.3 accepts both these codes and 150=F; FIX 4.4 only F.
OrdStatus 39=5 is removed. Report replaces with 150=5 and the current OrdStatus.
The flat settlement agent fields (173 to 187) are removed; FIX 4.4 describes settlement parties with repeating groups instead.
Renames with unchanged tag numbers include SettlType (63) (was SettlmntTyp), SettlDate (64) (was FutSettDate) and PegOffsetValue (211) (was PegDifference).
Message renames: 35=J becomes AllocationInstruction, 35=P AllocationInstructionAck and 35=AC MultilegOrderCancelReplace.
Rule80A (47) is removed in favour of OrderCapacity (528).
HandlInst (21) becomes optional on New Order Single.
The Logon gains NextExpectedMsgSeqNum (789) and NewPassword (925).

Value changes in key fields

Enumerated values added or removed between the two versions.

MsgType (35)

Added in FIX 4.4: AJ Quote Response; AK Confirmation; AL Position Maintenance Request; AM Position Maintenance Report; AN Request For Positions; AO Request For Positions Ack; AP Position Report; AQ Trade Capture Report Request Ack; AR Trade Capture Report Ack; AS Allocation Report; AT Allocation Report Ack; AU Confirmation Ack; AV Settlement Instruction Request; AW Assignment Report; AX Collateral Request; AY Collateral Assignment; AZ Collateral Response; BA Collateral Report; BB Collateral Inquiry; BC Network Counterparty System Status Request; BD Network Counterparty System Status Response; BE User Request; BF User Response; BG Collateral Inquiry Ack; BH Confirmation Request

OrdStatus (39)

Not in FIX 4.4: 5 Replaced

OrdType (40)

Not in FIX 4.4: 5 Market on close; A On close; C Forex market; F Forex limit; B Limit on close; H Forex previously quoted

ExecType (150)

Not in FIX 4.4: 1 Partial fill; 2 Fill

SessionRejectReason (373)

Added in FIX 4.4: 99 Other

OrdRejReason (103)

Added in FIX 4.4: 13 Incorrect quantity; 14 Incorrect allocated quantity; 15 Unknown account; 99 Other

Not in FIX 4.4: 12 Surveillence option

CxlRejReason (102)

Added in FIX 4.4: 99 Other

Messages added in FIX 4.4 (25)

Quote Response 35=AJ
Confirmation 35=AK
Position Maintenance Request 35=AL
Position Maintenance Report 35=AM
Request For Positions 35=AN
Request For Positions Ack 35=AO
Position Report 35=AP
Trade Capture Report Request Ack 35=AQ
Trade Capture Report Ack 35=AR
Allocation Report 35=AS
Allocation Report Ack 35=AT
Confirmation Ack 35=AU
Settlement Instruction Request 35=AV
Assignment Report 35=AW
Collateral Request 35=AX
Collateral Assignment 35=AY
Collateral Response 35=AZ
Collateral Report 35=BA
Collateral Inquiry 35=BB
Network Counterparty System Status Request 35=BC
Network Counterparty System Status Response 35=BD
User Request 35=BE
User Response 35=BF
Collateral Inquiry Ack 35=BG
Confirmation Request 35=BH

Messages renamed

35=J: Allocation becomes AllocationInstruction
35=P: AllocationAck becomes AllocationInstructionAck
35=AC: MultilegOrderCancelReplaceRequest becomes MultilegOrderCancelReplace

Field changes in the core order messages

6 messages most sessions carry, compared field by field.

New Order Single 35=D

107 fields added, 5 removed, counting fields inside components and repeating groups.

Required in FIX 4.3, optional in FIX 4.4: HandlInst (21)

Removed: Rule80A (47), NetMoney (118), AccruedInterestRate (158), AccruedInterestAmt (159), QuantityType (465)

Order Cancel/Replace Request 35=G

107 fields added, 5 removed, counting fields inside components and repeating groups.

Required in FIX 4.3, optional in FIX 4.4: HandlInst (21)

Removed: Rule80A (47), NetMoney (118), AccruedInterestRate (158), AccruedInterestAmt (159), QuantityType (465)

Order Cancel Request 35=F

78 fields added, counting fields inside components and repeating groups.

Execution Report 35=8

136 fields added, 2 removed, counting fields inside components and repeating groups.

Removed: Rule80A (47), QuantityType (465)

Order Cancel Reject 35=9

2 fields added, counting fields inside components and repeating groups.

Added: TradeDate (75), AcctIDSource (660)

Logon 35=A

1 field added, counting fields inside components and repeating groups.

Added: NextExpectedMsgSeqNum (789)

Fields renamed (17)

Same tag number and wire format, new name. Code generated from a dictionary changes.

Tag	FIX 4.3 name	FIX 4.4 name
23	IOIid	IOIID
33	LinesOfText	NoLinesOfText
63	SettlmntTyp	SettlType
64	FutSettDate	SettlDate
74	AvgPrxPrecision	AvgPxPrecision
193	FutSettDate2	SettlDate2
211	PegDifference	PegOffsetValue
286	OpenCloseSettleFlag	OpenCloseSettlFlag
304	TotQuoteEntries	TotNoQuoteEntries
389	DiscretionOffset	DiscretionOffsetValue
393	TotalNumSecurities	TotNoRelatedSym
418	TradeType	BidTradeType
491	CardIssNo	CardIssNum
509	RegistDetls	RegistDtls
557	TotalNumSecurityTypes	TotNoSecurityTypes
587	LegSettlmntTyp	LegSettlType
588	LegFutSettDate	LegSettlDate

Fields added (298)

Show 298 fields

Version dictionaries

Other comparisons

Field and message data comes from the QuickFIX data dictionaries for FIX 4.0 to 5.0 SP2 and FIXT 1.1, used under the QuickFIX Software License. This product includes software developed by quickfixengine.org (http://www.quickfixengine.org/). Enumerated value names are converted to plain text for reading.