In the recent 10.9.3 update to Mavericks, it was mentioned in the details about improved 4K display for certain Mac models. A Knowledge Base article reveals all.
Digital Rebellion has just released CinePlay, a professional movie player replacement for QuickTime Player 7. Lots of features and we have five licences to giveaway.
In a very 'non-Apple' move, Apple has opened up their Mavericks OS X Beta to everybody. Now all users can test out the software and report bugs to Apple before its release.