OSX Yosemite is here!
Yesterday, October 16, 2014, OSX Yosemite was released forMAC customers. It’s a whopping 5.1 GB download. Please be aware of this bandwidth requirement when downloading this massive update.
OS X Yosemite is available as a free upgrade from the Mac App Store, and it supports all Macs introduced in 2009 or later.
For an upgrade system checklist, please visit: http://apple.com/osx/how-to-upgrade.