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

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Summary	Impacted services	Certification required?	Certification	Mock	Production	Description	Observation
Rejection of NewOrderCross Messages with Traders Containing more than Five Characters	FIX EntryPoint Gateway	No	Nov/2024	2nd quarter/2025		NewOrderCross (35=s) FIX message types will be rejected when the values given in PartyRoles EnteringTrader (452=7) and ExecutionTrader (452=36) have more than five characters.	This change takes into account the non-existence of operators registered on the platform containing more than 5 characters, thus limiting the size of the information present in this field to possibly valid values. (date of last information update: Aug/18/2025)
Order Book Management Based on Price/OrderID	Binary UMDF	No	Position+Priority based book management: May/5/2025 Priority based book management: Jun/30/2025	Mock test (position removal) channels 72 and 94 Jul/26/2025 End of position-based support: Aug/23/2025	May/26/2025	Improvement of order book management of Binary UMDF, which will now be based on priority rather than position. Change Details Document	End of position-based support: Tranche 1: Aug/25/2025, channels 68, 92, 98 Tranche 2: Sep/01/2025, channels 70, 74, 80, 86, 90, 94 Tranche 3: Sep/08/2025, channels 72, 76, 78, 82, 84, 88 (date of last information update: Aug/15/2025)
New Trading and Co-location Network	All services for Order Entry and Market Data	No	N/A	Simulation (Phase 1) - Jul/26/2025 Aug/23/2025 Internal Migration (Phase 2) - Sep/13/2025 Sep/27/2025 Oct/11/2025 Oct/25/2025 External Migration (Phase 3) - Nov/08/2025	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. It means that 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/12/2025)
Order Book Management Based on Price/OrderID	Binary UMDF	No	Aug/27/2025	Sep/13/2025	Sep/15/2025	Performance improvement in publication and market data generation. A reduction in latency between T11 and T5 of approximately 10% is expected.	Tranche 1: Sep/15/2025 Channels 68, 70, 92, 94, 98. Tranche 2: Sep/22/2025 Channels 74, 76, 80, 86, 90. Tranche 3: Sep/29/2025 Channels 72, 78, 82, 84, 88.
Implied Functionality for DIF and DAF Operations	EntryPoint FIX and Binary Gateways UMDF FIX/FAST and Binary	No impact	Aug/28/2025	Aug/23/2025	Sep/08/2025	The Implied IN functionality will be implemented in production for Structured FRA Operations of DI1 (DIF) and DAP (DAF).	The maturities will be activated as follows: Sep/08/2025 DIF: DIFV25F26 DIFF26J26 DIFJ26N26 DIFN26V26 DIFV26F27 DIFF27J27 DIFF26N26 DIFN26F27 DIFF27N27 DIFN27F28 DIFF26F27 DIFF27F28 DIFF28F29 DIFF27F29 DIFF29F31