I just upgraded from 4.1.1 to 4.8.3.
What I didn't like was the blurring of the image when you moved a slider.
For fine adjustments, this is impractical to me.
So I went right back to 4.1.1
Yes, 4.8.3 shows sharpness more accurately. But I can't work with this blurring delay.
I export to Photoshop with sharpening disabled, so I don't care about an exact sharpening setting. I just want to prepare luminosity and color so I have an ideal start for Photoshop work.