05/04/2026

Improvements

FIX Services

Euronext has added support for instrument Series Term of Half Year on their API messages. Correspondingly, TT has introduced a new value to tag 18211 (DeliveryTerm) and 18212 (LegDeliveryTerm) in the Instrument and the Instrument leg components in the FIX messages in Drop copy, Order Routing and market data sessions.
1. Z:Half Year

Please note that there are no Half Year contracts available for trading on Euronext currently. This new value on Tag 18211 / 18212 will be available when such contracts are added on Euronext.

(Ref 207214)

Production Release: 06/05/2026

Version: v311

05/04/2026

Plan

FIX Services

Production deployment of the v311 FIX Drop Copy began May 29th.

Production deployment of the services will be completed the following five weeks.

This release includes changes to the FIX XML schema files. Clients are strongly encouraged to download and deploy the latest XML schema files from the URL below prior to release: [https://library.tradingtechnologies.com/tt-fix/general/System_Overview.html]

Release Notes for FIX v311 and prior releases can be reviewed at any time by going to [https://library.tradingtechnologies.com/release_notes/]

All TT FIX clients are strongly encouraged to subscribe to the weekly TT System Admin News and Updates email newsletter here: [https://www.tradingtechnologies.com/support-updates/]

(Ref 207212)

Production Release: 06/05/2026

Version: v311

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