Futuremark Unleashes 3DMark Fire Strike Ultra For 4K Ultra HD Benchmarking
Those of you running the Basic version of 3DMark are out of luck -- the new Fire Strike Ultra test is only available in the Advanced Edition and Professional Edition, so you'll need to pony up for a paid package rather than freeload off of the pro bono version.
Source: Futuremark
One neat thing about the Fire Strike Ultra test is that you don't need a 4K Ultra HD monitor to run it (though you do need a graphics card with at least 3GB of dedicated memory). The benchmark renders the test content at 3840x2160 to give your PC a proper workout and then scales the output to your PC's display resolution. This is a neat feature that will let you know if your rig is up to the task of gaming at 4K before going out and plunking a wad of cash on a 4K monitor.
Like with other benchmarks, you can search and compare Fire Strike Ultra scores for different hardware configurations. There's also a Fire Strike Ultra leaderboard in Futuremark's Hall of Fame section.

Outside of adding Fire Strike Ultra to 3DMark, the latest version (1.4.755) sports a newfangled design for the main benchmark selection screen along with improved benchmarking logging to assist customer support. As for bug fixes, Futuremark says 3DMark is now more robust when there's a problem identifying or monitoring the hardware in a system.
You can find more information and/or download the latest version of 3DMark here.