pixelated sky hues?

i noticed that i see pixelation in the sky hues.

the clouds are ok, but the sky colors hues (like the different tints of blue in the sky) i can notice pixelation.

-do you notice this pixelation in the sky? (i asked someone and he said he sees this too)
-is that new in the latest client versions?
-is that a way Linden Lab is trying to tweak the client to SL will get less lags (optimizing)?

They GIFed the sky.


(I'm making this up)