Release Notes - Euronext Optiq MDG Market Data Handler - Version 1.4.2

Task

• [EOMHC-80] - Spec updated to v6.366.0 and template SBE 366 for Optiq Cash and Derivatives dated 08/06/2026
• [EOMHC-79] - New template SBE 365 for Optiq Cash and Derivatives

Release Notes - Nodal Exchange update for FIX Engine 1.19.0 API

Update details: OnixS FIX Support Pack update for Nodal Exchange - update for FIX Engine 1.19.0 API specification

Release Notes - FIX Engine Java - Version 2.16.0

Bug

• [JAVA-3549] - TmTool misses string accessors generation for standard dialect
• [JAVA-3548] - TmTool requires unneeded dashed options
• [JAVA-3547] - Concurrent inbound message access could cause inbound failures
• [JAVA-3532] - Stale stop callbacks can clear the active connection

New Feature

• [JAVA-3544] - Add search capability to the Programming Guide
• [JAVA-3141] - SSL SNI support

Task

• [JAVA-3542] - Support EP 302
• [JAVA-2813] - Add "Summary File Record Format" section

Improvement

• [JAVA-3504] - Database Session Storage sample
• [JAVA-3502] - Add the High Availability section to the Programming Guide
• [JAVA-3497] - Implement a ring-based resend queue optimised in terms of memory usage
• [JAVA-3175] - Enhance the documentation for the Typed Message tool
• [JAVA-2849] - File-based storage topic is missing in docs
• [JAVA-2703] - Add "Declaring Several FIX Dialects" section
• [JAVA-2565] - Add SSL/TLS troubleshooting guidance to FAQ
• [JAVA-2419] - Improve FIX Message section
• [JAVA-2182] - README.md file should be added to the distribution package
• [JAVA-1769] - Add Javadoc of MessageDiff class

Release Notes - CME STP Handler Java - Version 3.4.0

Improvement

• [JAVACMECTH-166] - Log unsuccessful quote request

Bug

• [JAVACMECTH-162] - Handle CME error responses in session flow

Release Notes - CME MDP Market Data Handler .NET - Version 4.2.7

Bug

• [NCMMDH-583] - Incorrect joining to multicast groups under Linux environment

Improvement

• [NCMMDH-581] - Switch to System.Security.Cryptography.Xml 8.0.3
• [NCMMDH-580] - Integrate latest SBE templates
• [NCMMDH-574] - Add .Net 8.0, 9.0 and 10.0 support

Release Notes - CME STP Handler Java - Version 3.3.0

Task

• [JAVACMECTH-161] - Align enum values with CME FIXML spec
• [JAVACMECTH-160] - Mark TradeRequestType ContinueSendingResultsOfPolling as obsolete, rename to UnreportedTradesMatchingCriteria

Release Notes - CME STP Handler .NET - Version 4.4.0

Task

• [NETCMECTH-412] - Mark TradeRequestType ContinueSendingResultsOfPolling as obsolete, rename to UnreportedTradesMatchingCriteria
• [NETCMECTH-411] - Align enum values with CME FIXML spec

Release Notes - Eurex T7 Enhanced Drop Copy Interface (EDCI) Handler C++ - Version 1.0.0

New Feature

• [EEHC-17] - Become ready to Introduction of Release 14.1 (D0001) on 23 March 2026

Release Notes - .NET FIX Engine - Version 1.19.0

Bug

• [NETCOREFIXENGINE-1951] - Possible data race in AsyncFileBasedStorage
• [NETCOREFIXENGINE-1945] - Repeated EngineSettings.LoadFromConfigurationFile duplicate list-backed settings
• [NETCOREFIXENGINE-1944] - Session.ValidateUnknownFields returns the state of ValidateRequiredFields instead of ValidateUnknownFields
• [NETCOREFIXENGINE-1545] - The required group inside the non-required component is treated as required

Improvement

• [NETCOREFIXENGINE-1947] - Improve the generation of V50SP2Latest dictionary
• [NETCOREFIXENGINE-1943] - Update the "Time Zone" article on the "Session Schedule" page
• [NETCOREFIXENGINE-1937] - Mark Session.StorageDirectory setter as Obsolete
• [NETCOREFIXENGINE-1936] - Mark Session.ResendingQueueSize setter as Obsolete
• [NETCOREFIXENGINE-1935] - Mark EngineSettings session global properties as Obsolete
• [NETCOREFIXENGINE-1918] - Add Group.Set(int tag, int index, ...) methods for unsigned values
• [NETCOREFIXENGINE-1874] - Add the High Availability section to the Programming Guide
• [NETCOREFIXENGINE-1799] - Add SessionSettings class to specify session-related parameters during session construction
• [NETCOREFIXENGINE-1585] - Send Logout if no Heartbeat is received after TestRequest

Task

• [NETCOREFIXENGINE-1930] - Add EP302

New Feature

• [NETCOREFIXENGINE-1907] - Add EngineSettings.LoadFromConfigurationStream(..) method
• [NETCOREFIXENGINE-1703] - Add SessionScheduler.Register(Session session, string scheduleId, SessionConnectionSettings connectionSettings) method

Release Notes - Eurex T7 Market and Reference Data Interfaces (EMDI, EOBI, RDI) Handlers C++ - Version 19.0.3

Improvement

• [CPPEEMDIRDI-1124] - EMDI/RDI/MDI: Improve group processing robustness

Release Notes - Eurex T7 Market and Reference Data Interfaces (EMDI, EOBI, RDI) Handlers C++ - Version 18.2.9

Bug

• [CPPEEMDIRDI-1123] - Fix processing of ProductSnapshot messages without Feeds group

Release Notes - Eurex T7 Market and Reference Data Interfaces (EMDI, EOBI, RDI) Handlers C++ - Version 19.0.2

Bug

• [CPPEEMDIRDI-1119] - Emdi: coredump on message processing

Release Notes - Eurex T7 Market and Reference Data Interfaces (EMDI, EOBI, RDI) Handlers C++ - Version 19.0.2

Bug

• [CPPEEMDIRDI-1119] - Emdi: coredump on message processing

Release Notes - CME MDP Market Data Handler Java - Version 3.20.1

Improvement

• [JCMEMDH-814] - Unnecessary CPU overhead when processing book types with no registered listeners
• [JCMEMDH-813] - Eliminate hot-path overhead when packet logging is disabled

Bug

• [JCMEMDH-806] - Handler ignores license file path

Release Notes - ICE Binary Order Entry (BOE) Handler C++ - Version 1.1.2

Improvement

• [ICEBOECPP-81] - Update exchange codes to exchangeCodeMapping-03.25.2026.txt

Release Notes - ICE Trading update 4.23

Update details: OnixS FIX Support Pack update for ICE Trading - update for FIX API specification <4.23>

Updated reference implementation sample distributions incorporating the FIX Dialect and reference implementation samples can be downloaded from here:

IceTradingClientCpp_4.22.0.zip

Download authentication credentials:

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onixs-ice-trading-client-java-1.19.0-bin.tar.gz

onixs-ice-trading-client-java-1.19.0-bin.zip

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OnixS.Net.IceOrderServer.1.11.0.zip

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IceOrderServerSample-net-4.8-x64-Setup-4.21.0.0.msi

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Updated individual FIX Dialect files, which reflect the corresponding changes, can be downloaded from here:

IceTradingFixDialect-4.23.zip

FIX Dialect Download authentication credentials
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All FIX Dialects are session-level dialects. This requires explicit dialect specification while creating message and session objects.

You can find more information about session-level FIX dialects for:

• .NET FIX Engine
• C++ FIX Engine
• Java FIX Engine
• .NET Framework FIX Engine

 

Release Notes - Cboe CFE Binary Order Entry (BOE) Handler C++ - Version 1.12.2

Improvement

• [CBATSBOE-130] - CFE BOEv3 spec update to v1.1.31 dated 14th January 2026

Release Notes - ICE Trade Capture Java - Version 2.29.0

Task

• [JAVAICEFIXTC-276] - ICE TC 4.20 March 2026 update

Release Notes - ICE Trade Capture .NET Framework - Version 2.44.0.0

Task

• [ICETC-740] - ICE TC 4.20 March 2026 update

Release Notes - ICE Trade Capture .NET - Version 3.21.0

Task

• [ITCNCORE-85] - ICE TC 4.20 March 2026 update

Release Notes - Euronext Optiq MDG Market Data Handler - Version 1.4.1

Improvement

• [EOMHC-77] - Packet processing optimization
• [EOMHC-76] - Optiq MDG Messages Interface Spec v6.363.3 and v6.364.0 updated 5th March 2026

Release Notes - ICE Private Order Feed (POF) Java - Version 1.19.0

Task

• [JICEPOF-107] - ICE POF 3.22 March 2026 update

Release Notes - ICE Private Order Feed (POF) C++ - Version 2.0.0.0

Improvement

• [ICEPOFCPP-52] - Update ICE POF sample to C++14 level

Task

• [ICEPOFCPP-50] - ICE POF 3.22 March 2026 update

Release Notes - ICE Private Order Feed (POF) .NET Framework - Version 1.23.0.0

Task

• [NETICEPOF-243] - ICE POF 3.22 March 2026 update

Release Notes - ICE Private Order Feed (POF) .NET - Version 3.0.0

Task

• [IPOFPNCORE-41] - ICE POF 3.22 March 2026 update

Release Notes - CME STP Handler .NET - Version 4.3.0

Improvement

• [NETCMECTH-410] - Add non-blocking SubscribeAsync and QueryAsync methods
• [NETCMECTH-403] - Migrate HTTP connection to NET8.0+ level

Release Notes - Eurex T7 Enhanced Trading Interface (ETI) Handler Java - Version 1.13.0

Improvement

• [JAVAEUREXETI-153] - Upgrade onixs-utils from 1.0.64 to 1.0.88

New Feature

• [JAVAEUREXETI-152] - Become ready to Introduction of Release 14.1 (D0002) on 23 March 2026
• [JAVAEUREXETI-151] - Add thread affinity support for sender and receiver threads

Release Notes - Eurex T7 Market and Reference Data Interfaces (EMDI, EOBI, RDI) Handlers C++ - Version 19.0.0

Task

• [CPPEEMDIRDI-1112] - T7 Release 14.1 updates

Improvement

• [CPPEEMDIRDI-1111] - BREAKING CHANGE: [CodeBreakingChanges] Improve Timestamp
• [CPPEEMDIRDI-1110] - Improve inactive instruments processing
• [CPPEEMDIRDI-1109] - EmdiHandler: Limit memory consumption

Release Notes - Eurex T7 Enhanced Trading Interface (ETI) Handler C++ - Version 9.27.0

New Feature

• [CPPEUREXETI-719] - Become ready to Introduction of Release 14.1 (D0002) on 23 March 2026

Release Notes - CME iLink 3 Binary Order Entry Java - Version 1.3.1

Bug

• [ILINK3JAVA-369] - Sort rotated summary segments by numeric index instead of filename order
• [ILINK3JAVA-367] - Handle Sequence.NextSeqNo equal to expected sequence during retransmission
• [ILINK3JAVA-366] - Move session to TERMINATED when terminate confirm times out
• [ILINK3JAVA-365] - Recreate storage during backup establishment

Improvement

• [ILINK3JAVA-368] - Restore outbound resend state from rotated summary files after restart
• [ILINK3JAVA-363] - Sequence-number contract mismatch between Session API, outbound callback, and persistent storage
• [ILINK3JAVA-235] - Review Programming guide to make it align with Sbe v2.0.0

New Feature

• [ILINK3JAVA-358] - Add search capability to the Programming Guide

Release Notes - Euronext Optiq MDG Market Data Handler - Version 1.4.0

New Feature

• [EOMHC-75] - Add max incremental queue size

Improvement

• [EOMHC-74] - Optimize incremental packet caching

Release Notes - ICE Trade Capture Java - Version 2.28.0

Release Notes - ICE Trade Capture .NET - Version 3.20.0

ICE Trade Capture – CFICode<461> Legacy Value Decommissioning

According to the ICE FIX Trade Capture Specification, the legacy CFICode (Tag 461) value OXXXXX will be decommissioned on May 29, 2026 and will no longer be supported.

To continue requesting Options Security Definitions, implementations must be updated to use the supported CFICode value:

461=OXXFXX

If needed, the current version of our FIX Trade Capture specification can be found here on ICE Service Community:

ICE FIX Trade Capture Reference Manual

Please ensure your implementation is updated to the supported request format before the decommissioning date to avoid any disruption in processing security definition requests.

Task

• [JAVAICEFIXTC-275] - Remove legacy CFICode from reference implementation

Release Notes - ICE Trade Capture .NET Framework - Version 2.43.0.0

ICE Trade Capture – CFICode<461> Legacy Value Decommissioning

According to the ICE FIX Trade Capture Specification, the legacy CFICode (Tag 461) value OXXXXX will be decommissioned on May 29, 2026 and will no longer be supported.

To continue requesting Options Security Definitions, implementations must be updated to use the supported CFICode value:

461=OXXFXX

If needed, the current version of our FIX Trade Capture specification can be found here on ICE Service Community:

ICE FIX Trade Capture Reference Manual

Please ensure your implementation is updated to the supported request format before the decommissioning date to avoid any disruption in processing security definition requests.

Task

• [ICETC-738] - Remove legacy CFICode from reference implementation

Release Notes - ICE Trade Capture .NET - Version 3.20.0

ICE Trade Capture – CFICode<461> Legacy Value Decommissioning

According to the ICE FIX Trade Capture Specification, the legacy CFICode (Tag 461) value OXXXXX will be decommissioned on May 29, 2026 and will no longer be supported.

To continue requesting Options Security Definitions, implementations must be updated to use the supported CFICode value:

461=OXXFXX

If needed, the current version of our FIX Trade Capture specification can be found here on ICE Service Community:

ICE FIX Trade Capture Reference Manual

Please ensure your implementation is updated to the supported request format before the decommissioning date to avoid any disruption in processing security definition requests.

Task

• ITCNCORE-82 – Remove the legacy CFICode value from the reference implementation.

Release Notes - Eurex T7 Enhanced Trading Interface (ETI) Handler C++ - Version 9.26.1

Improvement

• [CPPEUREXETI-717] - T7 Interface Encryption: Decommissioning of support for TLS 1.2

Release Notes - Trading Technologies update v305-0

Update details: OnixS FIX Support Pack update for Trading Technologies - update for FIX API specification <v305-0>

Updated reference implementation sample distributions incorporating the FIX Dialect and reference implementation samples can be downloaded from here:

TradingTechnologiesClientCpp_2.6.0.0.zip

Download authentication credentials:

User: download
Password: 6CpH7AkPwkJZMT7KItDAZKa1

onixs-trading-technologies-client-java-2.12.0-bin.tar.gz

onixs-trading-technologies-client-java-2.12.0-bin.zip

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Password: 6CpH7AkPwkJZMT7KItDAZKa1

OnixS.Net.TradingTechnologiesClient.4.6.0.zip

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Password: 6CpH7AkPwkJZMT7KItDAZKa1

TradingTechnologiesClientSample-net-4.8-x64-Setup-2.12.0.0.msi

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User: download
Password: 6CpH7AkPwkJZMT7KItDAZKa1

Updated individual FIX Dialect files, which reflect the corresponding changes, can be downloaded from here:

TT-FIX-Dialect-v305-0.zip

FIX Dialect Download authentication credentials
User: download
Password: 6CpH7AkPwkJZMT7KItDAZKa1

All FIX Dialects are session-level dialects. This requires explicit dialect specification while creating message and session objects.

You can find more information about session-level FIX dialects for:

• .NET FIX Engine
• C++ FIX Engine
• Java FIX Engine
• .NET Framework FIX Engine

 

Release Notes - ICE Binary Order Entry (BOE) Handler C++ - Version 1.1.1

Improvement

• [ICEBOECPP-73] - BREAKING CHANGE: Remove SessionSettings::ipSessionToken
• [ICEBOECPP-34] - Add the SessionScheduler sample

Release Notes - CME iLink 3 Binary Order Entry C++ - Version 1.19.3

Bug

• [ILINKBOECPP-1171] - The Scheduler performs the session reset each connect attempt of the negotiated session
• [ILINKBOECPP-1170] - AuditTrailGenerator: invalid OrdStatus processing

Release Notes - CME iLink 3 Binary Order Entry Java - Version 1.3.0

Bug

• [ILINK3JAVA-357] - Stale stop callbacks can clear the active connection
• [ILINK3JAVA-356] - Fix session state file corruption when resets overlap with sequence updates in async file storage

Improvement

• [ILINK3JAVA-355] - Update Scheduler docs for CME ILink3
• [ILINK3JAVA-352] - Add NotApplied docs
• [ILINK3JAVA-347] - Fault tolerance implementation
• [ILINK3JAVA-339] - Add Custom Key to the session identifier
• [ILINK3JAVA-329] - Add MsgSeqNum negotiation docs
• [ILINK3JAVA-319] - Add new scheduler samples for File, Program, and Generic scheduling scenarios
• [ILINK3JAVA-294] - Use double quotes as escape symbols for commas
• [ILINK3JAVA-20] - Add Understanding Send Latency advanced section under Advanced Programming section
• [ILINK3JAVA-18] - Add Pluggable Session Storage advanced section under Advanced Programming section
• [ILINK3JAVA-17] - Add File-Based Session Storage advanced section under Advanced Programming section

New Feature

• [ILINK3JAVA-346] - Add Session.getOutboundQueueBytes() to expose outbound send buffer usage
• [ILINK3JAVA-267] - Modify AuditTrailGenerator to load from a folder and sort records before the generation

Task

• [ILINK3JAVA-312] - Fix the 'Creating message' section

Release Notes - MTS BondVision/SDP Handler C++ - Version 1.4.2

Improvement

• [MTSBVSPDCPP-20] - BREAKING CHANGE: Release 14.1

Release Notes - Eurex T7 Enhanced Trading Interface (ETI) Handler C++ - Version 9.26.0

Improvement

• [CPPEUREXETI-715] - MessageInfo::rawReceivingTime in system ticks on Linux

Release Notes - MTS Cash/SDP Handler C++ - Version 1.9.0

Improvement

• [CMTSCSEBM-115] - CMF Cash – RELEASE 12.11

Release Notes - TradeWeb TradeXpress update 101.32

Update details: OnixS FIX Support Pack update for TradeWeb TradeXpress - update for FIX API specification <101.32>

Updated reference implementation sample distributions incorporating the FIX Dialect and reference implementation samples can be downloaded from here:

onixs-tradeweb-tradexpress-client-java-2.13.0-bin.tar.gz

onixs-tradeweb-tradexpress-client-java-2.13.0-bin.zip

Download authentication credentials:

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Password: 6CpH7AkPwkJZMT7KItDAZKa1

Updated individual FIX Dialect files, which reflect the corresponding changes, can be downloaded from here:

TradeWebFixDialect-101.32.zip

FIX Dialect Download authentication credentials
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Password: 6CpH7AkPwkJZMT7KItDAZKa1

All FIX Dialects are session-level dialects. This requires explicit dialect specification while creating message and session objects.

You can find more information about session-level FIX dialects for:

• .NET FIX Engine
• C++ FIX Engine
• Java FIX Engine
• .NET Framework FIX Engine

 

Release Notes - Trading Technologies update v295-2

Update details: OnixS FIX Support Pack update for Trading Technologies - update for FIX API specification <v295-2>

Updated reference implementation sample distributions incorporating the FIX Dialect and reference implementation samples can be downloaded from here:

TradingTechnologiesClientCpp_2.5.0.0.zip

Download authentication credentials:

User: download
Password: 6CpH7AkPwkJZMT7KItDAZKa1

onixs-trading-technologies-client-java-2.11.1-bin.tar.gz

onixs-trading-technologies-client-java-2.11.1-bin.zip

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OnixS.Net.TradingTechnologiesClient.4.5.0.zip

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TradingTechnologiesClientSample-net-4.8-x64-Setup-2.11.0.0.msi

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Updated individual FIX Dialect files, which reflect the corresponding changes, can be downloaded from here:

TT-FIX-Dialect-v295-2.zip

FIX Dialect Download authentication credentials
User: download
Password: 6CpH7AkPwkJZMT7KItDAZKa1

All FIX Dialects are session-level dialects. This requires explicit dialect specification while creating message and session objects.

You can find more information about session-level FIX dialects for:

• .NET FIX Engine
• C++ FIX Engine
• Java FIX Engine
• .NET Framework FIX Engine

 

Release Notes - CME MDP Market Data Handler Java - Version 3.19.6

Improvement

• [JCMEMDH-704] - Slow processing of security definitions in queued incrementals
• [JCMEMDH-701] - Ability to replay log files generated by log replay
• [JCMEMDH-469] - Allow to remove security ID filter during market data processing

Bug

• [JCMEMDH-703] - Log replay does not recognize TCP Recovery messages

New Feature

• [JCMEMDH-700] - Support CME Smart Stream MDP data on the Google Cloud Platform

Release Notes - FIX Engine Java - Version 2.15.1

Improvement

• [JAVA-3524] - Improved TLS shutdown to avoid sending extra empty data after Logout
• [JAVA-3496] - Update Javadoc of the Message.get(..)

Release Notes - ICE Binary Order Entry (BOE) Handler C++ - Version 1.0.0

Task

• [ICEBOECPP-71] - First public release

Release Notes - B3 Binary UMDF Market Data Handler - Version 1.10.0

Improvement

• [B3UMDFHCPP-108] - BREAKING CHANGE: [CodeBreakingChanges] Improve MessageListener
• [B3UMDFHCPP-107] - BREAKING CHANGE: [CodeBreakingChanges] Improve OrderBookListener

Release Notes - Trading Technologies sample update

Update details: OnixS FIX Support Pack update for Trading Technologies - support .NET10, remove .NET6

Updated reference implementation sample distributions incorporating the FIX Dialect and reference implementation samples can be downloaded from here:

OnixS.Net.TradingTechnologiesClient.4.4.1.zip

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Release Notes - LME Select sample update

Update details: OnixS FIX Support Pack update for LME Select sample - support .NET10, remove .NET6

Updated reference implementation sample distributions incorporating the FIX Dialect and reference implementation samples can be downloaded from here:

OnixS.Net.LmeSelect.2.2.1.zip

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Release Notes - ICE Private Order Feed (POF) .NET - Version 2.12.0

Task

• [IPOFPNCORE-40] - ICE OS samples: support .NET10.0, remove .NET6.0

Release Notes - ICE Trade Capture .NET - Version 3.19.0

Task

• [ITCNCORE-79] - ICE OS samples: support .NET10.0, remove .NET6.0

Release Notes - ICE Trading update

Update details: OnixS FIX Support Pack update for ICE Trading - Support .NET10, remove .NET6,0

Updated reference implementation sample distributions incorporating the FIX Dialect and reference implementation samples can be downloaded from here:

OnixS.Net.IceOrderServer.1,10,0.zip

Download authentication credentials:

User: download
Password: 6CpH7AkPwkJZMT7KItDAZKa1

Release Notes - CME Drop Copy .NET - Version 5.6.0

Task

• [NETCMEDRCPY-380] - Support NET10, remove NET6