I just installed Mojave developer beta 1 (18A293u) on my late 2012 Mac Mini to play around with. Everything seems to be OK for a beta 1, except that my Logitech MX Anywhere 2 mouse scroll wheel doesn't work in any app. The mouse is connected via bluetooth, not Logitech dongle. Just curious if anybody else ran into this, or if I should just wait it out for Logitech to update their drivers or something. I just flipped the setting to always show scrollbars, and can click and drag them to navigate. Navigating via arrow keys and space bar works fine too.