I just made the update this morning around dawn. The change in sound quality isn’t minor. Rather, I’m hearing substantially more weight and body to the music. And the clarity has improved. I’d been thinking about looking at some other music servers. I’d been intrigued with the description of the Antipodes K50, but that curiosity to try something new pretty much ended after installing the 2.6 update.
The improvement in sound quality is, at least for me, like an upgraded component. Innuos is really on top of their game.
Btw - I’d been running a 2.2 software version, so maybe the jump was bigger for me?