Keep Up-to-Date with Automatic Software Update
OS X 10.10 Yosemite - We recommend you upgrade to the latest supported.OS X 10.9 Mavericks - We recommend you upgrade to the latest supported.OS X 10.8.x Mountain Lion - We recommend you upgrade to the latest supported.OS X 10.7.x Lion - Apple no longer supports this OS, upgrade to the latest supported.Just under OS X it will indicate what version you have. To check what version of OS X your Mac has, on your Mac desktop click the Apple icon in the top left corner of the screen then select About This Mac.Check if your Operating System is Current