Release of BOLT Pro TWS Version 13.35
BSE notice 20260827-21 · 27 Aug 2026
Official record
Open source pageSummary
Check the official recordWhat changed
BSE releases BOLT Pro TWS version 13.35. This update is compulsory for all trading members. It applies to Equity, Equity Derivatives, Currency Derivatives, Commodity Derivatives, and EGR segments. Members must upgrade their systems to this version. The version becomes live on August 31, 2026. Users with Leased Line connections can upgrade through the Auto-Download Interface. Alternatively, users can download the update from the BSE website. Members can test the new version during the mock trading session on August 29, 2026.
What you must do
- Upgrade to BOLT Pro TWS version 13.35
Key dates
- Mock trading session for testing
- 29 Aug 2026
- Effective from
- 31 Aug 2026
Document text
[Image omitted. See the official document.]
NOTICE
| Notice No. | 20260827-21 |
|---|---|
| Notice Date | 27 Aug 2026 |
| Category | Trading |
| Segment | General |
| Department | Trading Development |
| Subject | Release of BOLT Pro TWS Version 13.35 |
| Attachments | No Attachment |
[Image omitted. See the official document.]
Trading members of the Exchange are hereby informed that a new version of BOLT Pro TWS ver. 13.35 shall be released & made live with effect from Monday August 31, 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. 13.35
- Technical Enhancement
Download BOLT Pro TWS ver. 13.35
All users using Leased Line Connection can upgrade to BOLT Pro TWS ver. 13.35, by selecting ver. 13.35 in the TWS Version tab of Auto-Download Interface on start of BOLT Pro TWS. The new version of BOLT Pro TWS ver. 13.35 shall be available for download on Friday July 28,2026 from 7:00 pm onwards and same will be available to test on Saturday August 29, 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 –
- Browse web-link - http://www.bseindia.com/help/ to download the version.
- Click on the link – “Update.zip”
- ‘Software Update.zip’ will be downloaded
- Unzip the file
- Read the document ‘How to use this files.doc’. As per the instructions given in the document, please copy the respective files where BOLT Pro TWS is installed.
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 | Omkar Wanage |
|---|---|
| Vice President | Deputy Vice President |
| Trading Development | Trading Development |
August 27, 2026
Source details
- Source
- BSE Ltd (Bombay Stock Exchange)
- Type
- notice
- Published by source
- 27 Aug 2026
- Document number
- 20260827-21
- Issuing division
- Trading Development
- Effective date
- 31 Aug 2026
- Coverage area
- securities