Disaster Area Designs releases MIDI Baby beta firmware v19 / v35 BETA 2

January 21, 2026 · 1 sources

Disaster Area Designs released MIDI Baby beta firmware v19 / v35 BETA 2 on January 21, 2026, according to the maker's beta page¹. The release follows v19 / v25, which the same change log dates to January 20, 2026¹.

BETA 2 makes two changes, per the change log: it changes LED blinking during editor writes, which the maker says speeds up writing and updating from the editor, and it changes slider behavior in the editor so that an update message is sent only on slider release¹.

The larger feature set arrived in v19 / v25, which the maker says adds Expression Groups, a new way to manage the expression inputs for the MIDI Baby and Baby 3¹. When adding expression pedal actions, users can select a Group number alongside the MIDI controller and channel values, and only items in the active Group are sent when the expression pedal is updated¹. The maker's example places CC100 in group 0, CC4 and CC7 in group 1, and CC11 in group 2; moving the pedal while group 1 is active sends CC100, CC4 and CC7, and moving it while group 2 is active sends CC100 and CC11¹. A Set Expression Group action sets the active group, and MIDI Baby 3 devices have separate Groups for each expression pedal input¹. The maker notes that selecting a blank group with no assigned members disables all expression pedal actions, and that group settings may be combined with program selections so some presets can have different expression pedal functions¹.

The same release adds a Bank Down MX action and a Delay slider to the Strymon Bank command. The maker says the BigSky MX has a slightly different command structure and will not work with its existing setup; it suggests Bank Down MX for bank down with a 30ms delay and Bank Up for bank up with a 30ms delay, while other large Strymon pedals work with the previous Bank Down command and the default 10ms delay¹. The page also lists clock actions including Tap Tempo, Start Clock, Stop Clock, Toggle Clock and a new Set Tempo action that sets the tempo in beats per minute¹.

The page lists Gen4 firmware files as MIDI Baby Gen4 v37 and MIDI Baby 3 Gen4 v21, and Gen3 files as MIDI Baby v37 and MIDI Baby 3 v21, with update procedures for devices with two USB ports and one USB port¹. No price is given. The beta page carries an update date of October 20, 2026¹.