Edy555's version had a few new menu items such as DFU menu, version info, and
a few more Format menu's (not available in Hugen's firmware).
OK, you may have missed that there were already two (now three) menu maps
to match firmware menu differences.
The second map already showed DFU, version and more FORMAT options.
Since my hardware came with Hugen's firmware, I would like to confirm that the
VNA shall work correctly irrespective of the firmware I load?
I communicate directly with neither edy555 nor Hugen.
IMO, Hugen releases to Google Drive have been more stable,
and I prefer his AA versions (2 trace with larger font).
My impression is that edy555 is working on his own NanoVNA (2),
which is one reason that Hugen's are now named NanoVNA-H.
QRP reports that edy555 0.3.0 firmware has bug fixes,
better noise floor and more precise measurement.
I am concerned that touch display usability may be appreciably poorer
and whether routines no longer in-lined have been vetted for reentrancy.
I suppose that it also has smaller (4 trace) font;
4 traces on touch panel is not worthwhile to me..
Oristo