Apple has today updated a support document on its website to reflect that the new top-tier 15-inch Retina MacBook Pro with AMD Radeon R9 M370X graphics supports the latest 5K displays, including Dell’s dual-cable UP2715K 27-inch 5K display, as noted by MacRumors. Apple first added the support for Dell’s 5K offering last month with the OS X 10.10.3 update, though no MacBook initially supported the display.

The updated 5K display support document notes the following:

Dual-Cable Displays 

Some displays with resolutions higher than 4K require two DisplayPort cables to connect the display at full resolution. With OS X Yosemite v10.10.3 or later, the Dell UP2715K 27-inch 5K display is supported on the following Mac computers: 

• Mac Pro (Late 2013) 
• iMac (Retina 5K, 27-inch, Late 2014 and later) 
• MacBook Pro (Retina, 15-inch, Mid 2015) with AMD Radeon R9 M370X

The document also notes that the top-tier 15-inch Retina MacBook Pro is capable of driving most single-stream 4K displays at 60Hz on OS X 10.10.3, becoming the first notebook to support single-stream 4K displays alongside the Mac Pro and iMac Retina 5K.