Quick reminder, 10.13.5 has dropped, along with Security Updates for 10.11 and 10.12.
If you are using an Nvidia card that requires their Web Drivers please wait a day or two to run any of these updates. Nvidia typically has drivers out within 24 hours, though not sure how this being nearly the weekend will impact that.
If you have already run the update, you will be seeing some odd screen redraws, etc if you have a card with our EFI. If you don't have our EFI you aren't reading this on the affected Mac because it can only display black screens !
If you are desperate there are ways to hack the old drivers to work. I have mentioned them in past blog posts.
In any case, let's look forward to the new drivers by Monday.
UPDATE: Drivers for 10.13.5 out, still waiting for the Security Update drivers for 10.11.6 and 10.12.6.