Index: leahi_dialin/fp/filtration_purification.py
===================================================================
diff -u -r41e97e9a5a98346f71c460cc04122c9dc2bfb0f5 -r980f71407af011d966bf2c995f04d6cc5ead45c8
--- leahi_dialin/fp/filtration_purification.py	(.../filtration_purification.py)	(revision 41e97e9a5a98346f71c460cc04122c9dc2bfb0f5)
+++ leahi_dialin/fp/filtration_purification.py	(.../filtration_purification.py)	(revision 980f71407af011d966bf2c995f04d6cc5ead45c8)
@@ -82,6 +82,7 @@
                                                                        MsgIds.MSG_ID_FP_OP_MODE_DATA.value,
                                                                        self._handler_fp_op_mode_sync)
 
+            # FP's version is DD's version since they are the same FW.
             self.can_interface.register_receiving_publication_function(DenaliChannels.dd_sync_broadcast_ch_id,
                                                                        MsgIds.MSG_ID_DD_VERSION_RESPONSE.value,
                                                                        self._handler_fp_version_response_sync)