CUPERTINO, CA—Today at a product event, Apple announced that it would be releasing OS X Yosemite to the public. The eleventh major release of OS X was announced back in June at WWDC , and Apple began sending public beta builds to interested parties in July. Though it includes other new features, the operating system's most noticeable change is its redesigned user interface, which echoes the overhaul Apple gave iOS 7 last year

Yosemite's brighter, flatter applications and icons, its heavy use of translucency, and its switch to Helvetica Neue will be familiar to anyone with an iPhone or iPad, but as we saw in our coverage of the first public beta, Apple has been careful to preserve shadows and depth in many places throughout the OS. Along with the design overhaul, Yosemite also ushers in newly redesigned versions of OS X staple apps like Safari and iTunes.

Yosemite will be available as a free download from the Mac App Store later today, and it can be installed on any supported Mac running OS X 10.6 or later. If your Mac can run either Mountain Lion (version 10.8) or Mavericks (version 10.9), then it can run Yosemite. The full list of supported machines is as follows:

iMac (Mid-2007 or later)

MacBook (13-inch Aluminum, Late 2008), (13-inch, Early 2009 or later)

MacBook Pro (13-inch, Mid-2009 or later), (15-inch, Mid/Late 2007 or later), (17-inch, Late 2007 or later)

MacBook Air (Late 2008 or later)

Mac Mini (Early 2009 or later)

Mac Pro (Early 2008 or later)

Xserve (Early 2009)

If you're on the fence about the upgrade, we'll have John Siracusa's 25,000 word review ready for your perusal a bit later today.