Changing the parameter name in 1.11.3

I used 1.10.1 until recently.
A few days ago, we performed firmware upgrade to 1.11.3.
The brake value when the stick is released in the manual control of the position mode.
It was set to MPC_XY_VEL_P.

The brake value when the stick is released in the manual control of the position mode.
It was set to MPC_XY_VEL_P. After upgrading to 1.11.3,
The parameter has been deleted.
A parameter named MPC_XY_VEL_P_ACC was created.
MPC_XY_VEL_P_ACC is not described.
Is it the same parameter?