Interesting update:
There are suddenly Firmware versions 2.4b and 2.5 available, while until a few days ago, only 2.3 was online and still branded as "(new)". It seems impossible to find out what 2.4b does, while 2.5 adds a second Delay, Wah and MIDI Expression controls.
I find it increasingly annoying that there are no change notes.
Also: My device running on v2.3 has some issues when switching presets via MIDI. Sometimes the sound is off, like it would load the wrong IR file or something. Switching back and forth fixes it, but it is weird and annoying. I would like to know if any of those updates does fix it.