BlueField-2 Supported Interfaces

Hi All,
I have a MBF2H516A-CENOT DPU. Its physical connector is, described in the Specification chapter of its User Guide, “Dual QSFP56 (copper and optical)”.
And the default card firmware setting described in the “Supported Interfaces” chapter is QSFP28 mode.
Supported Interfaces

So how should I upgrade the firmware so that it can work in QSFP56 mode?

How to understand this description? Does this mean that MBF2H516A-CENOT supports QSFP56 mode. We only need to upgrade the firmware to make it work in QSFP56 mode?