B3 Tech Launches

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09/16/2024

B3 Tech Launches | Trading

The table below offers an overview of B3’s upcoming IT & Operations projects. The overview allows market participants to effectively plan their own development and management of the upcoming tech launches. Our full trading Roadmap can be accessed here.

Service: Trading
Update frequency: every 2 weeks
Date of last update: Aug/15/2025

Upcoming

Click here to view our full trading roadmap.

Summary	Impacted services	Certification required?	Certification	Mock	Production	Description	Observation
New Trading and Co-location Network	All services for Order Entry and Market Data	No	N/A	Simulation (Phase 1) - Jul/26/2025(T) Aug/23/2025(T) Internal Migration (Phase 2) - Sep/13/2025(T) Sep/27/2025 Oct/11/2025(T) Oct/25/2025(T) External Migration (Phase 3) - Nov/08/2025 (T) = New network available for external tests	Nov/08/2025	The Migration Plan is split into phases, where in Phase 1 all clients will be able to try the new network with simulation data. In Phase 2, all clients will continue accessing through the old network while B3 moves all its servers from the old to the new network access. In this phase, the new network will not be available for testing in the simulation environment; it will only be accessible during the October Mock sessions. For client perspective, nothing will change in the Phase 2. In Phase 3, all clients will be released to use their new cross-connections to access B3 services through the new network.	Simulation (Phase 1) Start - Jul/15/2025 Internal Migration (Phase 2) Start - Sep/13/2025 External Migration (Phase 3) Start - Nov/08/2025 Decommission of Old Network - Mar/28/2026 (date of last information update: Sep/16/2025)
Templates file Update - Binary UMDF (Schema version 16)	Binary UMDF	No	Oct/27/25	Nov/29/25	Dec/01/25	The highlight of the new templates file is the tag mDEntryPrevSize (37780), which represents the previous quantity of the order before modification, facilitating book management by price level. It also paves the way for the future release of the Binary Options functionality (subject to regulatory approval).	Tranche 1: Dec/01/2025 Channels 68, 70, 92, 94, 98. Tranche 2: Dec/08/2025 Channels 74, 76, 80, 86, 90. Tranche 3: Dec/15/2025 Channels 72, 78, 82, 84, 88
UMDF FIX/FAST and Conflated: Order Book Management Based on Price/OrderID	UMDF FIX/FAST and Conflated	No	Position+Priority based book management: Oct/6/2025 Priority based only: Mar/26	End of position-based support: Apr/26	Nov/03/2025	Improvement of order book management for UMDF FIX/FAST and Conflated, which will now be based on priority rather than position.	- Go Live, with simultaneous support for both order book management mechanisms (priority and position) allowing participants to migrate their systems in a controlled manner before support ends for order book management based on position: Nov/03/2025 - End of position-based support: Tranche 1: Apr/26, channels 5, 6, 7, 8, 59, 69, 70, 71, 72 Tranche 2: Apr/26, channels 1, 2, 3, 4, 9, 51, 52, 55, 56, 65, 66 Tranche 3: Apr/26, channels 10, 11, 53, 54, 57, 58, 60, 61, 62, 63, 64, 67, 68 (date of last information update: Oct/01/2025)

Summary

Impacted services

Certification required?

Certification

Mock

Production

Description

Observation

New Trading and Co-location Network

All services for Order Entry and Market Data

N/A

Simulation (Phase 1) - Jul/26/2025(T)
Aug/23/2025(T)

Internal Migration (Phase 2) -
Sep/13/2025(T)
Sep/27/2025
Oct/11/2025(T)
Oct/25/2025(T)

External Migration (Phase 3) - Nov/08/2025

(T) = New network available for external tests

Nov/08/2025

The Migration Plan is split into phases, where in Phase 1 all clients will be able to try the new network with simulation data. In Phase 2, all clients will continue accessing through the old network while B3 moves all its servers from the old to the new network access. In this phase, the new network will not be available for testing in the simulation environment; it will only be accessible during the October Mock sessions. For client perspective, nothing will change in the Phase 2. In Phase 3, all clients will be released to use their new cross-connections to access B3 services through the new network.

Simulation (Phase 1) Start - Jul/15/2025

Internal Migration (Phase 2) Start - Sep/13/2025

External Migration (Phase 3) Start -
Nov/08/2025

Decommission of Old Network -
Mar/28/2026

(date of last information update: Sep/16/2025)

Templates file Update - Binary UMDF

(Schema version 16)

Binary UMDF

Oct/27/25

Nov/29/25

Dec/01/25

The highlight of the new templates file is the tag mDEntryPrevSize (37780), which represents the previous quantity of the order before modification, facilitating book management by price level. It also paves the way for the future release of the Binary Options functionality (subject to regulatory approval).

Tranche 1:
Dec/01/2025
Channels 68, 70, 92, 94, 98.

Tranche 2:
Dec/08/2025
Channels 74, 76, 80, 86, 90.

Tranche 3:
Dec/15/2025
Channels 72, 78, 82, 84, 88

UMDF FIX/FAST and Conflated: Order Book Management Based on Price/OrderID

UMDF FIX/FAST and Conflated

Position+Priority based book management:

Oct/6/2025

Priority based only:

Mar/26

End of position-based support:

Apr/26

Nov/03/2025

Improvement of order book management for UMDF FIX/FAST and Conflated, which will now be based on priority rather than position.

- Go Live, with simultaneous support for both order book management mechanisms (priority and position) allowing participants to migrate their systems in a controlled manner before support ends for order book management based on position:

Nov/03/2025

- End of position-based support:

Tranche 1: Apr/26, channels 5, 6, 7, 8, 59, 69, 70, 71, 72

Tranche 2: Apr/26, channels 1, 2, 3, 4, 9, 51, 52, 55, 56, 65, 66

Tranche 3: Apr/26, channels 10, 11, 53, 54, 57, 58, 60, 61, 62, 63, 64, 67, 68

(date of last information update: Oct/01/2025)