BSE notice 20260716-15 · 16 Jul 2026
Official record
Open source pageSummary
Check the official recordBSE has announced the mandatory release of BOLT Pro TWS version 13.25, effective July 20, 2026. This update applies to all trading members across the Equity, Equity Derivatives, Currency Derivatives, Commodity Derivatives, and EGR segments. The new version includes technical enhancements. Users with Leased Line connections can upgrade via the Auto-Download Interface starting July 17, 2026, at 7:00 pm, or download the update directly from the BSE website. A mock trading session is scheduled for July 18, 2026, to facilitate testing of the new version.
What you must do
Key dates
| Notice No. | 20260716-15 |
| Notice Date | 16 Jul 2026 |
| Category | Trading |
| Segment | General |
| Department | Trading Development |
| Subject | Release of BOLT Pro TWS Version 13.25 |
| Attachments | No Attachment |
Trading members of the Exchange are hereby informed that a new version of BOLT Pro TWS ver. 13.25 shall be released & made live with effect from Monday July 20, 2026. This new version shall be COMPULSORY version release in Equity, Equity Derivatives, Currency Derivatives, Commodity Derivatives & EGR segments.
Functionality introduced as a part of BOLT Pro TWS ver. 13.25
Download BOLT Pro TWS ver. 13.25
All users using Leased Line Connection can upgrade to BOLT Pro TWS ver. 13.25, by selecting ver. 13.25 in the TWS Version tab of Auto-Download Interface on start of BOLT Pro TWS. The new version of BOLT Pro TWS ver. 13.25 shall be available for download on Friday July 17,2026 from 7:00 pm onwards and same will be available to test on Saturday July 18, 2026, during mock trading session.
The new version can also be downloaded from the Exchange website. Steps to download BOLT Pro TWS version from website are given below –
In case of any queries or further clarification, trading members may kindly get in touch with the BSE Helpdesk as follows –
| TWS users | |
| BSE Helpdesk | 022-45720400/600 & 022- 69158500 |
| bsehelp@bseindia.com |
For and on behalf of BSE Ltd.,
Tejash Somaiya Vice President Trading Development
Omkar Wanage Deputy Vice President Trading Development
July 16, 2026
Who is affected