Agree with this.
It's less spacious, less wide, not as ethereal. Imaging not as focused, separation less obvious between instruments. Things are happening more in front only, and not as much to the side of ears or inside head simultaneously as outside of head, because of worse separation.
It's less 3D in other words.
However, I find what I identify as improvements or increase in coherency, bass control, bass heft, bass depth, treble control (less splashy and sharp) and tangibility. As a consequence , I think tone and timbre is a little more full, pleasant and agreeable. I also believe I noticed a little more depth to the stage too, but again, less wide and more mono in presentation. The notes themselves are flatter and more static in movement (bad). Maybe the worst change is that the edge of the notes have been dulled. It's like a low-res veil covering the note so it never gets too close it intimate. It hurts the sense of micro detail and rawness of notes (obviously bad)
It's it an upgrade? Wouldn't say so. Bright tilted IEMs can benefit from these changes, but overall it's a downgrade.
Edit: Technicalities are decreased more than previously thought. We need firmware 1.14 asap.