Apple on Wednesday released the latest update to its OS X Lion operating system, OS X 10.7.4. Along with a number of minor bug fixes and a security update to address a vulnerability in FileVault, the update included behind-the-scenes changes that will pave the way for future Macs with high-resolution Retina displays, according to Apple Insider. The Cupertino-based company has updated a number of apps — including the built-in TextEdit app — with double-resolution icons, increasing their sizes from 512 x 512 pixels to 1,024 x 1,024 pixels. The move suggests that Apple is planning to introduce new MacBooks with ultra-high-resolution screens, as it did with the Retina displays found on its iPhone and iPads.

[Via Gizmodo]