Hi itsVashi, I've done the same update. While Windows 10 itself installed without a hitch (via USB stick; keeping my applications, settings and documents), I haven't been able to install the drivers. I downloaded the Boot Camp update for my MBP (early 2011), but get an error saying "this app can't run on your PC". This means, the trackpad doesn't work, the screen is an ugly 1024x768 and various other things. WiFi, my installed programs and everything else is fine. I can use Windows 10 via a USB mouse.
I dare say updated drivers will be with us soon. At least one hopes.