“In OS X 10.9.2 and below, users with 4K displays connected to their Macs would see a list of compatible resolutions by default,” Tanous reports. “Native 4K resolution was available, but most users would find it too small for standard productivity work. The only other option, aside from the aforementioned HiDPI tweaks, was to use an upscaled lower resolution, such as 2560×1440.”
“Despite the improvements in Thursday’s update, support for third party 4K displays in OS X still has a long way to go,” Tanous reports. “Apple released Knowledge Base Article HT6008, explaining that only a select few displays are officially supported, especially at the important 60Hz refresh rate threshold, and that users may have to update their displays to ensure compatibility. Apple currently cites official compatibility with only the Sharp PN-K321 and Asus PQ321Q, and they’re not kidding.”
Read more in the full article here.