How is the GETMXDS CCC (maximum data speed) updated in I3C v1.1?

The standard GETMXDS CCC itself was not changed in I3C v1.1, though the definition of tSCO was clarified. However, the GETMXDS CCC now supports a Defining Byte value that allows the return of other forms of information. With no Defining Byte (or with a Defining Byte with value 0), the GETMXDS CCC behaves exactly the same as the original I3C v1.0 GETMXDS CCC.