The firmware is available on our site's Morphagene page or via this direct link:

But what does it do?
The new options mcr1, mcr2, and mcr3 allow user-definable Morph Chord Ratios (detuning of 2nd through 4th Genes with Morph at its highest settings).
The Auto-level procedure has been replaced with an improved input gain staging, accessed with a 4-step gain selection.
Playback gain is reverted to pre-mg157 level to improve TLA and Record-Into-New-Splice functions.
Internal processing improved to work with (2) and (3) to significantly improve signal-to-noise ratio on input and playback.
And more! Watch Walker's video above for the details.