Description

BSE releases new mandatory BOLT Pro TWS version 12.03 for Currency Derivatives, Commodity Derivatives & EGR segments, optional for Equity segments, effective September 08, 2025.

Summary

BSE is releasing BOLT Pro TWS version 12.03, which will be mandatory for Currency Derivatives, Commodity Derivatives & EGR segments and optional for Equity & Equity Derivatives segments, effective from Monday, September 08, 2025.

Key Points

  • New BOLT Pro TWS version 12.03 goes live on September 08, 2025
  • Mandatory upgrade for Currency Derivatives, Commodity Derivatives & EGR segments
  • Optional upgrade for Equity & Equity Derivatives segments
  • Technical enhancement release to handle market data stream changes
  • Available for download from September 05, 2025 at 7:00 PM
  • Mock trading session available on September 06, 2025

Regulatory Changes

This release implements technical enhancements related to market data streams as per previous circulars:

  • Circular 20250528-44 dated May 28, 2025
  • Circular 20250725-11 dated July 25, 2025
  • Circular 20250828-10 dated August 28, 2025

Compliance Requirements

  • Trading members in Currency Derivatives, Commodity Derivatives & EGR segments must upgrade to version 12.03
  • Leased Line Connection users can upgrade via Auto-Download Interface
  • Alternative download available from BSE website at http://www.bseindia.com/help/
  • Members should follow specified installation procedures

Important Dates

  • September 05, 2025 (7:00 PM onwards): Version 12.03 available for download
  • September 06, 2025: Mock trading session for testing new version
  • September 08, 2025: Version 12.03 goes live (mandatory implementation)

Impact Assessment

Medium impact on trading operations requiring system updates and testing. Trading members must ensure timely upgrade to maintain compliance in affected segments. BSE Helpdesk support available at 022-45720400/600, 022-69158500, and bsehelp@bseindia.com.

Impact Justification

Mandatory software upgrade affects trading operations but is routine technical enhancement