Well, I made backups of S/L/HIDPlugins folder just to be safe... but to be honest, keyboard didnt work well for me in beta 3 either. the fonts were right, but there was huge delay sometimes.
Here i'm having problems with the public beta 3 and finder fonts (the thin ones)... it seems like an antialias problems... with 12.10.0 all ok... now i'm updating to the beta4... let's see...
EDIT: also on safari there's the same problem, anyway only on sidebars...
EDIT #2: Problem resolved after updating to beta 4
Schermata 2016-10-11 alle 23.19.10.png 60.01KB 10 downloads
Schermata 2016-10-11 alle 23.34.32.png 119.43KB 8 downloads