B3 will add to the capture and allocation status messages, in addition to the screen, the following fields: DI/DAP rate and spread of matched transactions. All trade-related data is sent via message, making the participant process more robust and without the need to search for trade-related data manually.

To enable the transfer of assets generated by physical earnings to the creditor and eliminate the need for an investor's STVM authorizing the transfer of earnings, which makes the process time consuming, the improvement will automate the flow of transfer of an involuntary event to the creditor in a contract of usufruct.

Implementation of general improvements in the repurchase option flow for Financial Bills (LFs). Among the improvements are the possibility of automatically including a periodic schedule for LFs, the possibility of maintaining the repurchase schedule, restructuring the status flow of options events, and other one-off improvements.

During the confirmation phase of the donors' participation in the priority offer, they can inform a maximum price that conditions this participation only per screen. Thus, the improvement will allow the follow-up of the borrower also via file, and the maximum price information will be included in BVBG.095

B3 will make new files available with a list of assets restricted from trading in the Listed Segment (stocks, units, BDRs, fund shares). New files: ARQ.CAP.001.01 - List of sponsored stocks, units and BDRs with trading restriction and release dates for types of investors (professional, qualified and retail) ARQ.CAP.002.01 - List of Funds (FIP, FIM and FI-INFRA) with trading restriction and release dates for types of investors (professional, qualified and retail. ARQ.CAP.003.01 - List of Funds (FII and FIDC) with trading restriction and release dates for types of investors (professional, qualified and retail). The content of the file is distributed across 3 tabs: Tab 1 “Information about orders” – refers to the tab that will be updated regularly and reflects in a consolidated manner the 'Share Trading Release' forms published by fund administrators as of January 2023; Tabs 2 and 3 “FII – Inventory” and “FIDC – Inventory” – refers to the FII and FIDC funds, respectively, which have not posted recent orders but disclose target audience restrictions in their Monthly Report. Therefore, if a fund appears in the “Information about orders” tab, it will not appear in the “FII – Inventory” or “FIDC – Inventory” tab. ARQ.CAP.004.01 - Target audience for NP BDR Programs and ETF BDR Programs admitted to trading on B3. The files will be available during B3's nightly processing with information for the next trading session. Disclosure of these files will be maintained on the B3 portal.

The transfer time with change of ownership for Tesouro Direto bonds will be reduced from 4 days to a maximum of 1 day. Transfers are used in situations like estate, divorce and donation in the amounts established by the Court. No fee will be charged in advance by B3. The due fees will be transferred to investors proportionally according to the amount specified in the transaction.

Importation of an Excel spreadsheet to speed up the Order Issuer maintenance process. The change will streamline and automate requests for lot addition, modification and removal.

A new functionality was provided to send HTML brokerage trade confirmation through the SMTP server. This new technology allows users to be more agile and practical when sending brokerage trade confirmation.

An API was created to automate the Derivatives brokerage settlement. This new technology enables querying information with greater security and resilience.

An API was created to carry out the entry of Derivatives trades. This new technology enables querying information with greater security and resilience.

Enhancements will be delivered to UP2DATA aimed at improving the clients' experience with the product. Among the enhancements are:  - Documents from Legacy File to UP2DATA file: Currently, some clients use data from the UP2DATA Legacy/Old channel files, but they are changing their systems/reading to files with the UP2DATA format. The data contained in the Legacy/Old channel is stored in several different files, making it difficult to find the necessary similar fields. Therefore, the main benefit of this activity is the "map" from the Legacy file to the UP2DATA file, which will make it easier to find the fields in the files.   - Increase in the history and update of the website glossaries - Public Data Website.  - Addition of site variables - Public Data Website: Fields with data on fluctuation, registered quantity and financial volume will be included. Data that will be delivered on the UP2DATA public data website, market and regulatory channels.  - New DI Futures variable in the Interest Rate file: Currently, some UP2DATA clients need to have DI1 and TAS business data. Therefore, DI Futures data - VWAP + TAS - will be developed and included in the Interest Rate channel.

With this delivery, banks will have easier access to the trading data for the Casado de Dólar (CSD2) strategy, including U.S. Dollar Futures data that makes up the strategy. Therefore, the banks' back office will have access to the same data that traders already have and this will bring greater efficiency to the formalization of transactions with the Central Bank of Brazil. For this, the following fields will be added to the BMC0015 message: • Code of the brokerage house executing the trade • Futures trade number, futures price, CSD trade number • CSD price • Trade quantity

As well as intraday risk calculation, participants will now have access to T-1 risk calculation.

B3 will reduce the FRC Round Lot in electronic calls from 100 to 10 contracts by matching the regular trading session lot to the call lot. This improvement is aimed at facilitating clients’ access to product liquidity in electronic calls. To mitigate the risk of distortion of the FRC curve in less liquid maturities, the settlement price for each maturity will be determined by the call only when there are more than 100 contracts traded in the call for the maturity in question.

Review of derivatives reports, warning screen and product notifications for better usability, besides the implementation of metrics and monitoring of use for continuous evolution.

B3 will improve the accuracy criteria of the calculation models offered by CALC fixed income calculation tool. As a result, we will replicate the calculation results delivered by CALC in a more agile, efficient and accurate way.

We have added the possibility of parameterizing the Automatic Release of Distribution for the Derivatives segment in the Unified Order module, which is available on SINACOR WEB. The improvement allows clients to quickly and safely release the distribution of derivatives.

A parameter was added to integrate entries related to the options market in SINACOR's Pre-Match. The new feature brings an improvement in usability and functionalities allowed in the Pre-Match.

An API was created to add accounts to the Tesouro Direto Activity. This new technology will enable querying information with greater security and resilience.

An API was created to make registration changes to accounts in the Current Account Activity. This new technology will enable querying information with greater security and resilience.