I tried beta release 435.17 with kernel 5.2.8 (official) and 5.3.0-rc4 (my own build), and found it worked as a graphic driver, but OpenCL application (Collatz conjecture in BOINC… see https://boinc.thesonntags.com/collatz/) gives calculation errors. Returning 430.40, it works fine.
I suspect something is wrong with nvidia-uvm, but I’m not sure. Anyway, OpenCL doesn’t seem to work.
EDIT: Addition, I use Fedora 30