--- title: Release Notes - FIX Engine C++ - Version 4.11.0 description: Task - Support Ubuntu 24.04 - Add latest EP287 to the engine package Improvement - Support header trailer XML nodes in QF dictionaries - Improve --- [OnixS ](https://www.onixs.biz/) - [Products](https://www.onixs.biz/products.html) - [Support](https://www.onixs.biz/support.html) - [Contact us](https://www.onixs.biz/contact-us) Search Menu # Release Notes - FIX Engine C++ - Version 4.11.0 - [Home](https://www.onixs.biz) - [Release Notes](https://www.onixs.biz/release-notes/) 28 May 2024 ## Task - [[CPP-4601](https://support.onixs.biz/browse/CPP-4601)] - Support Ubuntu 24.04 - [[CPP-4543](https://support.onixs.biz/browse/CPP-4543)] - Add latest EP287 to the engine package ## Improvement - [[CPP-4600](https://support.onixs.biz/browse/CPP-4600)] - Support header/trailer XML nodes in QF dictionaries - [[CPP-4594](https://support.onixs.biz/browse/CPP-4594)] - Improve processing of the receive timeout when the heartbeat interval equals to zero - [[CPP-4581](https://support.onixs.biz/browse/CPP-4581)] - Add 'indent' and 'endOfLineDelimiter' parameters to Message::toXml()/Message::toJson() methods - [[CPP-4568](https://support.onixs.biz/browse/CPP-4568)] - Throttling Buy Side sample - [[CPP-4566](https://support.onixs.biz/browse/CPP-4566)] - Throttling Sell Side sample - [[CPP-4554](https://support.onixs.biz/browse/CPP-4554)] - Add the move semantic to the FlatMessage class - [[CPP-4529](https://support.onixs.biz/browse/CPP-4529)] - Support service packs in QuickFIX dictionaries - [[CPP-4519](https://support.onixs.biz/browse/CPP-4519)] - Add information about log levels of FIX Engine's log - [[CPP-4516](https://support.onixs.biz/browse/CPP-4516)] - Support Batch Sending in the TCPDirect mode - [[CPP-4496](https://support.onixs.biz/browse/CPP-4496)] - Change the difference_type to ptrdiff_t in Message/Group iterators - [[CPP-4494](https://support.onixs.biz/browse/CPP-4494)] - Add the move semantic to the Message class ## New Feature - [[CPP-4588](https://support.onixs.biz/browse/CPP-4588)] - Add TimeoutTimer class - [[CPP-4578](https://support.onixs.biz/browse/CPP-4578)] - SSL SNI support - [[CPP-4564](https://support.onixs.biz/browse/CPP-4564)] - Add the Throttler utility class - [[CPP-4537](https://support.onixs.biz/browse/CPP-4537)] - Add Session::tryThrottle() method - [[CPP-4513](https://support.onixs.biz/browse/CPP-4513)] - Add the SessionScheduler::isScheduled(..) method - [[CPP-3912](https://support.onixs.biz/browse/CPP-3912)] - Session::logonAsInitiatorAsync() should perform asynchronous connect ### Related articles [See all release notes](https://www.onixs.biz/release-notes/) 28 Apr 2025 ##### [ Release Notes - FIX Engine C++ - Version 4.13.0 ](https://www.onixs.biz/release-notes/release-notes-fix-engine-c-version-4-13-0.html) 13 Nov 2024 ##### [ Release Notes - FIX Engine C++ - Version 4.12.0 ](https://www.onixs.biz/release-notes/release-notes-fix-engine-c-version-4-12-0.html) 22 Jan 2024 ##### [ Release Notes - FIX Engine C++ - Version 4.10.1 ](https://www.onixs.biz/release-notes/release-notes-fix-engine-c-version-4-10-1.html) 27 Dec 2023 ##### [ Release Notes - FIX Engine C++ - Version 4.10.0 ](https://www.onixs.biz/release-notes/release-notes-fix-engine-c-version-4-10-0.html) 11 Jul 2023 ##### [ Release Notes - FIX Engine C++ - Version 4.9.0 ](https://www.onixs.biz/release-notes/release-notes-fix-engine-c-version-4-9-0.html) ### Other recent articles [See all release notes](https://www.onixs.biz/release-notes/) 8 Jul 2026 ##### [Release Notes - CME MDP Premium Market Data Handler C++ - Version 5.10.1 ](https://www.onixs.biz/release-notes/release-notes-cme-mdp-premium-market-data-handler-c-version-5-10-1.html) 9 Jul 2026 ##### [Release Notes - CME MDP Premium Market Data Handler C++ - Version 5.10.2 ](https://www.onixs.biz/release-notes/release-notes-cme-mdp-premium-market-data-handler-c-version-5-10-2.html) 9 Jul 2026 ##### [Release Notes - Euronext Optiq MDG Market Data Handler - Version 1.5.0 ](https://www.onixs.biz/release-notes/release-notes-euronext-optiq-mdg-market-data-handler-version-1-5-0.html) 14 Jul 2026 ##### [Release Notes - CME MDP Premium Market Data Handler C++ - Version 5.10.3 ](https://www.onixs.biz/release-notes/release-notes-cme-mdp-premium-market-data-handler-c-version-5-10-3.html) 22 Jul 2026 ##### [Release Notes - CME Drop Copy Java - Version 4.14.0 ](https://www.onixs.biz/release-notes/release-notes-cme-drop-copy-java-version-4-14-0.html) - Follow OnixS - [Follow us on Twitter ](https://twitter.com/onixsbiz) - [Connect with us on LinkedIn ](https://www.linkedin.com/company/onix-solutions/) [OnixS ](https://www.onixs.biz/) - [Follow us on Twitter ](https://twitter.com/onixsbiz) - [Connect with us on LinkedIn ](https://www.linkedin.com/company/onix-solutions/) ###### Telephone UK [ +44 20 7117 0111 ](tel:+44-20-7117-0111) ###### Telephone US [ +1 312 999 6040 ](tel:+1-312-999-6040) ###### Sales Support [ sales@onixs.biz ](mailto:sales@onixs.biz) ###### Technical Support [ support@onixs.biz ](mailto:support@onixs.biz) [ Support ](https://www.onixs.biz/support.html) - [Products](https://www.onixs.biz/products.html) - [OnixS directConnect](https://www.onixs.biz/directconnect.html) - [FIX Engine](https://www.onixs.biz/fix-engine.html) - [FIX Protocol Tools](https://www.onixs.biz/fix-protocol-dictionary-tools.html) - [About OnixS](https://www.onixs.biz/about.html) - [Insights](https://www.onixs.biz/insights) - [Contact us](https://www.onixs.biz/contact-us) - [Privacy](https://www.onixs.biz/cookies-and-privacy.html) - [Sitemap](https://www.onixs.biz/sitemap.html) Copyright © 2026 OnixS. All Rights Reserved. We track how people interact with our online web content and resources, and some of that tracking involves storing cookies on your device. By continuing to use our site you accept that you agree to this. For more details see our [Cookie usage, and Data Privacy and Protection Policies](https://www.onixs.biz/cookies-and-privacy.html). [Ok](https://www.onixs.biz/release-notes/release-notes-fix-engine-c-version-4-11-0.html#) [OnixS ](https://www.onixs.biz/) Menu - Products - [Products Overview](https://www.onixs.biz/products.html) - [directConnect](https://www.onixs.biz/directconnect.html) - [directConnect SDKs](https://www.onixs.biz/directconnect.html) - [Bloomberg TSOX](https://www.onixs.biz/bloomberg-tsox.html) - [Cboe CFE](https://www.onixs.biz/cboe.html) - [Cboe EU](https://www.onixs.biz/cboe-europe.html) - [CME Globex](https://www.onixs.biz/cme.html) - [CME BrokerTec](https://www.onixs.biz/cme-brokertec.html) - [CME EBS](https://www.onixs.biz/cme-ebs.html) - [Deutsche Börse RRH](https://www.onixs.biz/deutsche-borse-regulatory-reporting-hub-fix.html) - [ICE (Intercontinental Exchange)](https://www.onixs.biz/ice-exchange.html) - [LME (London Metals Exchange)](https://www.onixs.biz/lme.html) - [LSE (London Stock Exchange)](https://www.onixs.biz/lse.html) - [MTS Markets](https://www.onixs.biz/mts.html) - [Nasdaq NFI](https://www.onixs.biz/nasdaq-nfi.html) - [Nodal Exchange](https://www.onixs.biz/nodal-exchange-fix-trade-capture.html) - [TRADEcho](https://www.onixs.biz/tradecho.html) - [TT® 7x FIX](https://www.onixs.biz/tt-7x.html) - [TT® Platform](https://www.onixs.biz/tt.html) - [Turquoise](https://www.onixs.biz/turquoise-dropcopy.html) - [FIX Engine](https://www.onixs.biz/fix-engine.html) - [FIX Engine SDKs](https://www.onixs.biz/fix-engine.html) - [.NET Core/.NET FIX Engine](https://www.onixs.biz/net-fix-engine.html) - [.NET Framework / C# FIX Engine](https://www.onixs.biz/net-framework-fix-engine.html) - [C++ FIX Engine](https://www.onixs.biz/cpp-fix-engine.html) - [Java FIX Engine](https://www.onixs.biz/java-fix-engine.html) - [FIX FAST Decoder and Encoder](https://www.onixs.biz/fix-fast-decoder-encoder.html) - [FIX <-> FIXML Converter](https://www.onixs.biz/fix-fixml-converter.html) - [FIX Protocol Reference & Tools](https://www.onixs.biz/fix-protocol-dictionary-tools.html) - [Reference & Tools Overview](https://www.onixs.biz/fix-protocol-dictionary-tools.html) - [SBE Decoder and Encoder](https://www.onixs.biz/sbe-decoder-encoder.html) - [FIX Protocol Overview](https://www.onixs.biz/fix-protocol.html) - [FIXP Overview](https://www.onixs.biz/fixp.html) - [FIX Dictionary](https://www.onixs.biz/fix-dictionary.html) - [FIX Analyser](https://www.onixs.biz/fix-analyser.html) - [About OnixS](https://www.onixs.biz/about.html) - [Insights](https://www.onixs.biz/insights) - [Contact us](https://www.onixs.biz/contact-us) --- - [Support](https://www.onixs.biz/support.html) --- - [Privacy](https://www.onixs.biz/cookies-and-privacy.html) - [Sitemap](https://www.onixs.biz/sitemap.html) [OnixS ](https://www.onixs.biz/) Close Search ### Search the site Search