Apple has officially launched OS X El Capitan today after a series of betas, bringing a collection of new features to the operating system. Anyone currently running OS X 10.6.8 or newer can download 'El Capitan' through the Mac App Store free or charge, with the download size clocking in arond 6 GB.
Some of El Capitan's new features include Split View, which snaps two full-screen applications side-by-side for enhanced multitasking. Apple has also improved Spotlight Search, allowing you to search for things such as the weather and sports scores without leaving the application.
El Capitan also brings improvements to the Notes and Mail apps, and of course there's a new version of Safari to enjoy. On top of all this, El Capitan includes a new system-wide font called 'San Francisco' as well as some minor visual tweaks.
As has been the case with several of Apple's past operating system upgrades, El Capitan is a free update for anyone using OS X, and it tends to perform best on newer MacBooks and iMacs. It should still work on older hardware, just don't expect a ton of performance enhancements or improvements.