Release Notes

April 2026 - UAT Environment

UAT Complete Production Start Production Complete Type Component Release Note

04/16/2026

04/17/2026

05/28/2026

Fixes

Order Entry

Fixed the Order Ticket price calculation logic for Manual Fills on ASE with non-market equivalent configurations. Modifying the parent ASE price now correctly updates the far leg price, even when the spread configuration does not match a native exchange-defined instrument.

(Ref 206256)

04/16/2026

Improvements

Blocktrader

Blocktrader now supports LME_NTP Cross orders.

(Ref 205385)

04/14/2026

04/14/2026

04/14/2026

Improvements

General

Update Notice

April 10

For customers whose FIX engine natively supports SSL encryption, or who have implemented FIX session encryption using STunnel, TT provides a TTFIX.crt file with the public certificates used by the TT platform FIX endpoint.

On 2026/04/03, TT updated the stunnel.zip file located in the Download Center in order to update the soon-to-be-expired certs in the TTFIX.crt bundle.

All TT customers who use STunnel must download the new zip file and apply it at any time before the new zip file update is applied in each TT environment, which will be:

2026/05/01 for UAT

2026/05/06 for SIM

2026/05/08 for Production - NY

2026/05/15 for Production - All Other Locations

Customers still using the old stunnel.zip file after the dates listed above will not be able to connect to the respective TT environments.

Added TT Platform STAR.TRADE.TT; valid from 2026/04/02 - 2026/10/17

Additional Resources

Please download the updated stunnel.zip here: https://library.tradingtechnologies.com/tt-fix/general/stunnel.zip

Directions for configuring a stunnel with TTFIX.crt can be found on the TT FIX Help Site.

(Ref 205535)

04/07/2026

04/07/2026

04/07/2026

Improvements

TT Core SDK

Adds support for GS OTC Commodity Block venue (v2.1.1.0)

(Ref 205451)

04/07/2026

04/07/2026

04/07/2026

Improvements

TT .NET SDK

Adds support for GS OTC Commodity Block venue (v3.5.3.2)

(Ref 205450)

04/07/2026

04/07/2026

04/07/2026

Fixes

TT .NET SDK

Fixes bug introduced in 3.5.3.1 where server side mode price subscriptions can fail with PriceStreamInvalid (v3.5.3.2)

(Ref 205447)

04/02/2026

Improvements

Exchanges

TT has added support for entering wholesale orders on the following four strategy types - ICS 1 Sided, ICS 2 Sided, Spread vs Call/Put, Ratio Spread Option.
Note that the recently added Wholesale types of Block Standard, Block Historical and Block NFC Auction are currently unsupported.

(Ref 205485)

04/02/2026

04/02/2026

Improvements

FIX Services

TT will update the RIC codes for Silver Futures (SI) and Palladium Futures (PA) in Production.

Effective April 04, clients using RICs for SI and PA reduced tick spreads should use the updated format shown below.

RIC Code Format:

SI
Current: SIM26-N26, PAH26-M28
New: SIRTM26-N26, PARTH26-M28

PA
Current: PAU26-U28
New: PARTU26-U28

This change is in UAT from March 26, 2026

(Ref 204586)

Production Release: 04/02/2026