FIX Production Release Notes
New features are production released in a phased rollout to our globally distributed system. Therefore, a feature may be listed here which has not yet reached your workspace(s). However all of these features are available at uat.trade.tt.
| Date | Type | Component | Release Note |
|---|
03/31/2026 | Improvements | FIX Services | Introduced a new value to tag 378 (ExecRestatementReason) in the Execution Reports (35=8).
1. 9003 - Exec Restatement Reason Revived
This reason will be populated in a restated Execution Report whenever a fill is unassigned from a terminal care order. (Ref 201458) Version: v305 |
03/31/2026 | Plan | FIX Services | Production deployment of the v305 Drop Copy and Market Data FIX Services began Mar 27th. The deployment of these services will complete in 4-5 weeks.
Production deployment of the v305 Recovery, Importer and Order Routing FIX services are planned to begin Apr 10th.
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 v305 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 194377) Version: v305 Learn More |
03/31/2026 | Improvements | FIX Services | Introduced a new value for tag 16114 (LinkType).
1. F - Parent Account ID
When an order's account has a parent account, the Execution Reports (35=8) for that order in the FIX Drop Copy and FIX Drop Copy compliance sessions will include the parent account name in tag 16113 (LinkID), with tag 16114 set to 'F' within a LinkGroup. (Ref 194374) Version: v305 |
03/31/2026 | Improvements | FIX Services | Introduced tag 54 (side) on the OrderCancelRequest (35=F) messages generated in TT FIX Drop Copy session with compliance feed. (Ref 194372) Version: v305 |
03/04/2026 | Improvements | FIX Services | U.S. Daylight Saving Time (DST) begins March 8 at 2:00 AM local time.
TT FIX services reset weekly on Saturdays at 22:00 UTC by default. If FIX sessions utilize the optional Reset Schedule in Setup to perform a daily reset or change TT's weekly default, please note that these times are configured in UTC. If users desire to maintain the same daily reset time relative to their local time zone, they may need to adjust the UTC time Reset Schedule in Setup.
For example, if a FIX client application configured a daily reset time in Setup to be performed at 22:45 UTC, the session would be reset at 16:45 CST prior to Daylight Savings Time going into effect. When DST begins, the reset would occur at 17:45 CDT if no action was taken to adjust the Reset Schedule.
FIX clients connected to FIX v291 or higher have the option to specify a time zone other than UTC in the Session Reset Schedule in Setup. Configuring a time zone other than UTC eliminates the need to adjust configuration for seasonal time changes. (Ref 202141) Version: v305 |