Download Mac OS X Yosemite 10.10.5 DMG build 14A389 for Mac system. OS X Yosemite brings a redesigned user interface to the Mac, as well as many new features that intend to improve productivity and interoperability with iOS devices. The update to Macs is available now as a free download. Apple has released OS X Yosemite, officially versioned as OS X 10.10. If your Mac isn't compatible with OS X Yosemite, the installer will let. To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu. Mac mini introduced in early 2009 or later iMac introduced in mid 2007 or later Mac Pro introduced in early 2008 or later Xserve models introduced in early 2009.
