Os X Mountain Lion Update

  
  1. Feb 18, 2014 This article is aimed at the procrastinators (and there’s a surprisingly large amount of them – nearly 17% of Mac users are on Lion and another 20% on Mountain Lion), particularly individuals with Macs still running OS X Lion, in any version from 10.7 through 10.7.5.
  2. If your Mac is running OS X Lion or Mountain Lion, follow these steps to upgrade to El Capitan. Download the El Capitan installer from Apple. The file size is 5.8 GB, so the download may take a while, depending on the speed of your Internet connection.
  3. Jun 23, 2021 Mac OS X 10.8 Mountain Lion is available for older systems that are not compatible with the latest version of macOS and requires the following.

Operating system upgrades bring increases in efficiency, new features, stronger security, and updates to included software utilities. The following page shows you how to upgrade your Apple Macintosh desktop or laptop computer to Catalina (10.15), the current version of macOS.

  • Check compatibility.

Affected Products. OS X v10.8.5 Supplemental Update. OS X Mountain Lion v10.8 to v10.8.5. OS X Mountain Lion v10.8.5 and Security Update 2013-004. If you have a version of OS X that is older than 10.6 you will need to pay to upgrade to Mountain Lion (10.8) first because it is only versions later than 10.8 that are free. You can buy 10.7 or 10.8 at the Apple Store here.

Lion

Check compatibility

Before installing Catalina, verify your Mac is eligible for the upgrade.

Verify the model of your Mac

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The following Mac models can be upgraded to macOS Catalina.

  • Mac Pro - All models produced from mid-2013 and later.
  • MacBook Pro - All models produced from mid-2012 and later.
  • iMac - All models produced from late 2012 and later.
  • MacBook - All models produced from late-2015 and later.
  • MacBook Air - All models produced from late-2012 and later.
  • Mac mini - All models from mid-2012 or later.
Tip

If your Mac is not on this list, you cannot upgrade to Catalina. However, you can still try to upgrade to El Capitan.

Back up your data

Although not required, we strongly recommend you back up your Mac before proceeding with an upgrade. If anything goes wrong, you can restore your Mac to its previous state.

Check your OS version

The following versions of OS X and macOS can be upgraded to macOS Catalina.

    OS nameVersionRelease date
    OS X Lion*10.7July 20, 2011
    OS X Mountain Lion*10.8July 25, 2012
    OS X Mavericks10.9October 22, 2013
    OS X Yosemite10.10October 16, 2014
    OS X El Capitan10.11June 8, 2015
    macOS Sierra10.12June 13, 2016
    macOS High Sierra10.13June 5, 2017
    macOS Mojave10.14June 4, 2018

* If your Mac is running OS X Lion or Mountain Lion, you must upgrade to El Capitan before you can upgrade to Catalina.

Os X Mountain Lion Update V10.8.4 Combo

If your Mac is running Mavericks or newer, you can proceed to upgrade to Catalina.

Upgrade to El Capitan, if necessary

If your Mac is running OS X Lion or Mountain Lion, follow these steps to upgrade to El Capitan.

  1. Download the El Capitan installer from Apple. The file size is 5.8 GB, so the download may take a while, depending on the speed of your Internet connection.
  2. Double-click the downloaded archive, InstallMacOSX.dmg, to view its contents.
  3. In the archive, double-click InstallMacOSX.pkg.
  4. Follow the on-screen instructions to perform a compatibility check, and prepare for installation.
  5. When this process is complete, an installer application named Install OS X El Capitan is placed in your Applications folder. Double-click it to begin installation.
  6. During installation, your Mac may restart, or display a blank screen short time. Do not close the lid or power off your Mac until installation is complete.

Upgrade to Catalina

After you've gone through the preparation steps, you need to download and install the latest version of macOS. The following steps show you how.

  1. In the menu bar, click the Apple icon to open the Apple menu.
  2. In the Apple menu, select App Store.
  1. In the App Store, on the left side of the window, select Updates.

Os X Mountain Lion Free Download

  1. In the Updates window, locate the line that says Catalina.
  2. On the far right side, select Update.
  3. Catalina is downloaded and installed.
  4. During installation, your Mac may restart, or display a blank screen for a short time. Do not close the lid or power off your Mac until installation is complete.

Additional information

  • See our update definition for further information and related links.