DM42 early units vs. current?

[jklsadf]

David at Swissmicros rewrote the keyboard handling code for the DM 42 in July 2019 (DMCP v3.14 and newer should have the new code), and the rewritten code significantly reduces key bounces causing buttons to register twice.

Note though that early versions of the DM 42 keyboard have hardware problems which sometimes make keys not register at all (when hooked up to a scope there is no visible change), and these hardware problems can't be fixed by the keyboard scanning code.

In summary: in many cases updating the firmware can help with repeated keystrokes from key bounce, but will not improve missed keystrokes on early hardware.