The documentation additions for Panther 4.2 are:
COM Function
Panther 4.2 Replacement
sm_com_call_method
sm_obj_call
sm_com_get_prop
sm_obj_get_property
sm_com_log
sm_log
sm_com_obj_create
sm_obj_create
sm_com_obj_destroy
sm_obj_delete_id
sm_com_onerror
sm_obj_onerror
sm_com_raise_exception
sm_raise_exception
sm_com_receive_args
sm_receive_args
sm_com_return_args
sm_return_args
sm_com_set_prop
sm_obj_set_property