OS X Mavericks 10.9.3 Beta Contains Native 'Retina' Resolution Option for 4K Displays
Just released earlier tonight, Apple's OS X Mavericks 10.9.3 beta appears to have built-in support that enables all compatible 4K displays to be set at a "Retina" resolution, with an option for 60Hz output. The compatibility was first discovered by Twitter user @KhaosT, and was tested with both the Late 2013 Retina MacBook Pro and redesigned Mac Pro in conjunction with Dell's UltraSharp 24 Ultra HD Monitor.

To this point, OS X compatibility with 4K displays has been known to be somewhat erratic, as AnandTech revealed in December that Sharp's 32'' 4K display supported only one scaled resolution at 2560 x 1440. Furthermore, it was discovered that Apple had chosen to render text, menu and UI elements in the same manner as the Retina MacBook Pro, resulting in small and difficult to read on-screen elements on a 4K display. Various other 4K monitors were also found to be not properly supported.
Native support for 4K displays could also indicate that Apple is gearing up to release a higher-resolution Thunderbolt Display, as Apple last refreshed the monitor over two years ago. A number of other companies also introduced more affordable 4K displays at CES 2014 in January, with options from the likes of Lenovo, Asus, Seiki, and LG expected to hit the market throughout this year.
Popular Stories
Apple today shared an ad that shows how the upgraded Center Stage front camera on the latest iPhones improves the process of taking a group selfie.
"Watch how the new front facing camera on iPhone 17 Pro takes group selfies that automatically expand and rotate as more people come into frame," says Apple. While the ad is focused on the iPhone 17 Pro and iPhone 17 Pro Max, the regular iPhone...
In the iOS 26.4 update that's coming this spring, Apple will introduce a new version of Siri that's going to overhaul how we interact with the personal assistant and what it's able to do.
The iOS 26.4 version of Siri won't work like ChatGPT or Claude, but it will rely on large language models (LLMs) and has been updated from the ground up.
Upgraded Architecture
The next-generation...
Apple plans to announce the iPhone 17e on Thursday, February 19, according to Macwelt, the German equivalent of Macworld.
The report, citing industry sources, is available in English on Macworld.
Apple announced the iPhone 16e on Wednesday, February 19 last year, so the iPhone 17e would be unveiled exactly one year later if this rumor is accurate. It is quite uncommon for Apple to unveil...
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps.
The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future.
To set up the...
New MacBook Pro models with the M5 Pro and M5 Max chips could arrive as soon as Monday, March 2, according to Bloomberg's Mark Gurman.
In today's "Power On" newsletter, Gurman said that the release of new MacBook Pro models is tied to the release of macOS Tahoe 26.3. The launch is said to be slated for as early as the week of March 2. He added that the M4 Pro and M4 Max models on sale today...