wwdc - Images in IOS to support 1x, 2x, 3x -


in wwdc 2015, shall use 1x,2x,3x images in assets because iphone 6p download 3x image , ignore other. have watched app thinning.

i know whether ios 9 or below also?

note: ios apps, sliced apps supported on latest itunes , on devices running ios 9.0 , later; otherwise, app store delivers universal apps customers.

from app distribution guide - app thinning


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