Has is always the case with new firmware, some will say "yes" it totally changed it, while others will say it sounds the same.
Then after everyone is done swearing up and down has drastically different it is, Cliff will chime in and report there were zero changes to such and such parameters and it can't sound different.
Someone will still swear it does, only to then later report that they accidently had their wah engaged, or a weak battery in an active pup, and it was all a false alarm, sounds the same
Not to be outdone, Cliff will report that some parameter did have an incorrect value, which will of course be fixed with a new update 30 minutes later, and that it may have affected the tone on a particular patch
So on and so forth, lol, so as to the simple question of if a new firmware will affect the tone, the answer is not so simple....
Heck, I personally think my overall guitar tone, or my perception and satisfaction, with it varies with the weather and what I ate for breakfast, and that is without the variable of new firmware! Lol