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https://confluence.marketfactory.com/download/attachments/11568444/B2B_FIX_Rules_of_Engagement_1_47.pdf?api=v2


MarketFactory Analysis


API upgrade:


Note
titleAPI Upgrade

UBS has provided a latest API spec version 1.47 as attached above. There is no specific mandatory API changes for users in relation to this upgrade.

Firmware upgrade : 

No impact for versions using OpenSSL  below version 3.0

Warning
titleOpenSSL 3.0 and above

If using Open SSL Version3.0  & above, the following Option will be need to be added to the OpenSSL Config. 

Options = UnsafeLagacyRenegotiation


Impact to MarketFactory


MarketFactory will be updating the OpenSSL config with the setting Options = UnsafeLagacyRenegotiation on all servers.