This is a major release for both MKI and MKII:

• i2c2midi Firmware v5.0.0
• Gerber Files
• Build Guide
• Schematic

This firmware works with the official Teletype Firmware 5.0.0 BETA 1:
Download here

This firmware works for both MKI and MKII. Please define setting based on your hardware:
How to update the firmware

Changelog

• New OP I2M.MUTE / I2M.MUTE#: Get/Set mute state of MIDI channel
• New OP I2M.SOLO / I2M.SOLO#: Get/Set solo state of MIDI channel