To begin with, version 8.3.3 failed to retrive the update info with Error cheking for update
message. I read the chnagelog and no metion of the upped system requirements. I downloaded 8.4
but couldn't even open it as it crashed immediately. I went back to 8.3.3
and opening it generated a crash log with a prompt to send it (to the developer, I assume).
Is Mojave still supported?