We reported back in June that El Capitan beta 2 seed included assets and code references to a rumored 4K 21.5 inch Retina iMac, which would accompany the 5K 27 inch Retina iMac in the family. El Capitan beta 6 was released last night and also includes some juicy references to the as-yet-unannounced 21.5 inch Retina Mac desktop. […]
