So there is the 18.104.22.16835 version of the Intel UHD Graphics released back in November 6th. The reason I hadn't had it installed early on was because as soon as hit the install button on the Driver & Support Assistant page, the status would continuously be 'In progress' and it would just be stuck there. So today, I hit the install button and let it run while I watched some youtube videos. Surprisingly, when I checked my taskbar, the setup wizard was suddenly there, although I had waited for quite a long time (don't know the exact time, maybe 30 mins). I'm confused as to whether it's supposed to take this long, because the previous driver updates have been relatively quick.
I have an Alienware m17 r3 with a G-sync monitor, so the Intel UHD Graphics GPU is basically disabled and only the Nvidia GPU is used. Don't know whether that plays a role or not.