This release - accepts frequency and mode updates from older Kenwood transceivers connected to the Secondary CAT port (tnx to Peter OE6ZH and Chuck WA3CEJ) - on receiving a Kenwood/Elecraft/Picastar FB CAT command from the secondary CAT port with the secondary CAT port set to "lead" or "lead and follow", updates VFO B of the transceiver connected to the primary CAT port if that transceiver provides an "update VFO B" CAT command (tnx to Peter OE6ZH) - if the Secondary CAT serial port is assigned to an enabled transceiver on the Config window's MultiRadio tab, disables that transceiver's selection button in the Main window's VFO panel (tnx to Peter OE6ZH) - adds PW-1 to the secondary CAT port protocol selector so that an Icom PW-1 amplifier can track the primary transceiver's frequency and mode via a private CI-V bus (tnx to Jamie W2QO) - updates the Configuration.htm, ControllingMultipleRadios.htm, and index.htm documentation files Commander 8.4.0 is available via the DXLab Launcher and via 73, Dave, AA6YQ