Firmware 12.3.0 + DOS 2.2.2

[aftonomos]

I've always thought about it and never dared to ask, if Devialet has its D / A converter based on Analogue Converter chips, D / A T.I. PCM1792, how is it that people notice sound changes with every software update, .. I would understand this with DAC chips based on FPGA, but not on the Devialet, thanks for clarifying it ...

And not wishing to be rude to anyone (myself included), but just because people hear a difference doesn’t necessarily mean there is one.  

"... just because people hear a difference doesn’t necessarily mean there is one."
You are entirely correct with respect to objective, quantifiable differences.  The subjective experience, however, is another story.  Short of gross differences, buzzing hissing, etc.  most of what people report here is entirely subjective and heavily biased by their expectations, mood, what they had for breakfast, stress at work , how much $$$ they've poured into their audio system, etc.  the list is endless and often has less to do with the electronics and more to do with the fact that our brains bias information processing in the context of our emotions.

In other words people hear what they want to hear (or don't want to hear).