Apple has required 1024x1024 icons for all apps in the App Store since 2012: http://www.cultofmac.com/179738/apple-now-requires-high-res-1024x1024-icons-for-eve

Apple has required 1024x1024 icons for all apps in the App Store since 2012: http://www.cultofmac.com/179738/apple-now-requires-high-res-1024x1024-icons-for-every-mac-os-x-app/ http://www.cultofmac.com/179738/apple-now-requires-high-res-... So it's not that baffling.