Introduction of T7 Release 11.1

Release date: 11 Oct 2022

053/2022 Introduction of T7 Release 11.1Xetra Circular 053/22 Introduction of T7 Release 11.1

1. Introduction

Deutsche Börse plans to introduce T7 Release 11.1 on 22 May 2023 for the trading venues Xetra and Börse Frankfurt. The simulation for T7 Release 11.1 is planned to start on 27 March 2023.

This circular provides T7 Trading Participants with the T7 Release 11.1 timeline, planned scope and the communication schedule.

With T7 Release 11.1, ETI Password Encryption will be introduced besides further enhancements.

Simulation start:   27 March 2023      
Production start:   22 May 2023

2. Required action

Trading Participants are requested to initiate the preparatory steps to ensure software readiness for the new T7 Release 11.1 on 22 May 2023.

3. Details of T7 Release 11.1

A. Introduction Schedule and Communication Calendar

Please refer to the attachment for the Introduction Schedule and the Communication Calendar. 

The Introduction Schedule provides an overview of the timeline.

The Communication Calendar lists all important dates on which documents for T7 Release 11.1 will be published, including existing documents that will be revised for T7 Release 11.1.

In December 2022, Frankfurter Wertpapierbörse (FWB®, the Frankfurt Stock Exchange) will publish the detailed preliminary Release Notes listing the functional and technical enhancements that will be available in T7 Release 11.1.

Deutsche Börse will provide a dedicated release simulation environment to give Trading Participants and Independent Software Vendors (ISVs) the opportunity to perform comprehensive testing of their trading applications, independently of the T7 production environment. 

In addition to the T7 Release Simulation, Trading Participants can also use the T7 Cloud Simulation that allows Trading Participants and ISVs to test against the current T7 production and simulation software versions. In this environment, Trading Participants can initiate predefined market scenarios and test specific strategies more easily than in a shared environment. The T7 Cloud simulation is permanently (24/7) available for a fixed price per hour and is accessible using an SSL-encrypted internet connection. The T7 Cloud Simulation will start in advance to the usual Release Simulation.

For more information on the T7 Cloud Simulation, please refer to the Xetra website under the following path:

B. Scope of T7 Release 11.1

The following paragraphs provide an overview of the functional enhancements which will be introduced in T7 Release 11.1 among other enhancements.

Password Encryption for ETI

Deutsche Börse will provide an additional login option for both, sessions and users for the T7 Enhanced Trading Interface (ETI) with a password padded by the current UTC timestamp, encrypted with Deutsche Börse’s public RSA key, and base64 encoded.

Backwards compatibility

T7 Release 11.1 will be backwards compatible to T7 Release 11.0.


  • Introduction Schedule, Communication Calendar

Further information


All Xetra® and Börse Frankfurt Trading Participants and Vendors

Target groups:

Traders, Technical Contacts, System Administrators, Nominated Persons, General



Authorised by:

Frank Hoba, Holger Patt (on behalf of the Management Board)

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