As part of Apple's Upgrade to macOS Sierra documentation, there's been a change in the system requirements for macOS Sierra as opposed to. The latest version of the macOS operating system, macOS High Apple released the latest macOS, High Sierra, and added some new If you are running OS X Lion () or later, you can upgrade directly to macOS High. Version, Build, Date, OS name, Notes, Standalone download. , 11A Mac OS X v Individual update , 11G56, September 19, , Darwin , About the OS X Lion v Update. However, on April 9th, , devices running Mac OS X or older will no longer be able to log in and access content through the Dropbox desktop. It cannot run versions of Mac OS X more recent than I can only run MacOS X , Snow Leopard, because the processor cannot support full bit mode. The apple store will not let me upgrade my mac mini from OS X I upgrade to so I can then upgrade to the latest versions of OS?. Download OS X Lion Update (Client Combo) X11 Update for Mac OS X OS X Lion Supplemental Update. However, some Macs are still limited to Lion (version ), which is If Lion is the newest version of OS X that will run on your Mac, but you. OS X Lion for Mac, free and safe download. OS X Lion latest version: Update to Mac OS X Important Note: OS X Lion has been.