B3 Tech Launches

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02/05/2026

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: May/04/2026

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Summary	Impacted services	Certification required?	Certification	Mock	Production	Description	Observation
ePUMA: Change in Architecture Model - Client Multirelay	ePUMA	No	N/A	N/A	The migrations will take place between October and April.	The ePUMA application's architecture is evolving. The real-time trading and monitoring station for Market Data has adopted the CMR (Client Multirelay) architecture.	The expected impacts for participants include the replacement of channels and connection validation. Validation will occur during the morning call and will be individually aligned with each participant.
UMDF FIX/FAST: Order Book Management Based on Price/OrderID	UMDF FIX/FAST	No	Position+Priority based book management: Oct/6/2025 Priority based only: Feb/02/2026	End of position-based support: Apr/11/26	Nov/03/2025	Improvement of order book management for UMDF FIX/FAST, 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/13/26, channel 59 Tranche 2: May/04/26, channels 5, 6, 72 Tranche 3: May/11/26, channels 7, 8, 55, 56, 71 Tranche 4: May/18/26, channels 1, 2, 3, 4, 9, 51, 52, 65, 66, 69, 70 Tranche 5: May/25/26, channels 10, 11, 53, 54, 57, 58, 60, 61, 62, 63, 64, 67, 68 (date of last information update: Apr/17/2026)
UMDF Conflated: Order Book Management Based on Price/OrderID	UMDF Conflated	No	Position+Priority based book management: Oct/6/2025 Priority based only: Feb/02/2026	End of position-based support: Apr/11/26	Nov/03/2025	Improvement of order book management for UMDF Conflated, which will now be based on priority rather than position.	Progressive update of sessions: From 15 April 2026 to 25 May 2026. (date of last information update: Apr/17/2026)
Maintenance Release	FIX Entrypoint Gateways	No	Apr/25/26	N/A	Effective on each wave	Internal changes to enable a future replacement of the internal multicast bus	Waves: May/25/26: Admin Sessions Gateway Derivatives Gateways: May/25/26: Wave 1 May/26/26: Wave 2 May/27/26: Wave 3 May/28/26: Wave 4 May/29/26: Wave 5 Equities Gateways: Jun/01/26: Wave 1 Jun/02/26: Wave 2 Jun/03/26: Wave 3 Jun/04/26: Wave 4 Jun/05/26: Wave 5
Maintenance Release	Binary Entrypoint Gateways	No	Apr/25/26	N/A	Effective on each wave	Internal changes to enable a future replacement of the internal multicast bus	Waves: Derivatives Gateways: Apr/27/26: PGWD01 May/04/26: BGWD01 May/05/26: BGWD02 May/06/26: BGWD03 May/07/26: BGWD04 May/08/26: BGWD05 May/11/26: BGWD06 Equities Gateways: Apr/27/26: PGWE02 Apr/28/26: PGWE01 May/11/26: BGWE01 + BGWE02 May/12/26: BGWE03 + BGWE04 May/13/26: BGWE05 + BGWE06 May/14/26: BGWE07 + BGWE08 May/17/26: BGWE09 + BGWE10