All users are encouraged to update their Q-Widget with the MIDI firmware. The “Native QLab” firmware and driver are recommended only for QLab 3 users without a MIDI license – these files are no longer maintained as of OS X 10.12.

MIDI – Firmware v1.1 (Recommended)
 1 file(s)  2911 downloads
Firmware, MIDI, Q-Widget August 23, 2017 Download