The new operating system will reportedly be bringing a lot more "power-user" characteristics that draw on some of the iOS core features.
One such characteristic is a new multitasking panel similar to the swipable menu found on iPhones and iPads when you double-click the home button, as well as the ability to pause background apps and run full-screen apps on different monitors.
Apple to the core
A new Safari browser is also expected, redesigned under the hood to improve overall speed and efficiency.
There's also no further word on whether Siri might be speaking up on OS X 10.9, though it's previously been reported that Apple is looking to bring the feature in to its Mac ranges.
Apple has codenamed the new operating system "Cabernet." Can we read anything from this? Perhaps it means the OS will get better with age. Or maybe it just means we won't have anything to "wine" about when we finally get our fingertips on it.
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Hugh Langley is the ex-News Editor of TechRadar. He had written for many magazines and websites including Business Insider, The Telegraph, IGN, Gizmodo, Entrepreneur Magazine, WIRED (UK), TrustedReviews, Business Insider Australia, Business Insider India, Business Insider Singapore, Wareable, The Ambient and more.
Hugh is now a correspondent at Business Insider covering Google and Alphabet, and has the unfortunate distinction of accidentally linking the TechRadar homepage to a rival publication.