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Table of Contents

FIX Client Simulator v.2.27.0

New Features and Improvements

  • Display administrative messages in console
  • Create message from template
  • “Send Message“ functionality extended to work with multiple messages 
  • “Send message“ window visualization was improved with highlighted "tag=" and rich undo/redo functionality
  • Configuration settings file path was simplified
  • Configuration settings file made available for user (to copy/paste/export/share)
  • Previous user configuration settings can be used after upgrade to a new version 
  • Added an ability to send message(s) without any delays, when the Rate field is set to "0"
  • Improved “Edit message “ interface usability


  • Auto-increment logic for the fields of decimal types was fixed
  • Presentation logic for expanding/collapsing groups was fixed

FIX Client Simulator v.2.26.0

New Features and Improvements

  • FIX logs replay feature has been implemented
  • An ability to autoincrement tags while sending has been implemented
  • FIX Client Simulator persists the following data between program runs :
    • Position and size of main window.
    • Names and parameters of all created sessions. Sessions can be restored in connected or disconnected state. 
    • Edited message.
    • Value for Autoincrement tags edit box.
    • Values of Rate and Send Count controls for both Send Message and Replay tabs.
    • Values for other controls from Replay tab: Log file, Sequence numbers, Filter, Use timestamps and Speed.
    • Values for checkboxes from Events Viewer menu and Options menu.


FIX Client Simulator v.2.25.1

New Features and Improvements

Critical bugs and fixes

  • Tag number of the repeating group is invisible in message details window