Mac OS X Snow Leopard (version 10.6) is the seventh major release of macOS, Apple's desktop and server operating system for Macintosh computers. Snow Leopard was publicly unveiled on June 8, 2009 at Apple’s Worldwide Developers Conference. If you’re using macOS Mojave or later, choose Apple menu System Preferences, then click Software Update. If you’re using an earlier macOS, use the App Store instead. Learn how to download and install macOS Big Sur Go to the App Store.
This is a series of tips that cover Mac OS X client edition. Server forums cover Mac OS X server on the community.
Here is the series of tips for related Macs. 10.6,10.7, 10.8, 10.9, 10.10,10.11,
10.12 ,10.13, 10.14 Mojave, 10.15 Catalina , 11.0 Big Sur.
See special note about resetting the SMC during updates and upgrades, later in the tip.
is an article I wrote that everyone updating their Mac should read. No update should be ventured into with operating systems or software without first ensuring your data is backed up in two separate places. Slowing down of your Mac should not lead you to assume an update will fix everything. First isolate why your Mac is slowing down or crashing before installing anything new.
Apple includes many full upgrade installer links on https://support.apple.com/en-us/HT211683
Note: APFS came about with High Sierra, and Mojave continues the practice of auto-reformatting drives into APFS that are solid state like flash drives from HFS Journaled. If you need to downgrade to an older system than High Sierra, you will need to reformat the drive again, or leave a partition with the old formatting available.
Apple released for 10.14.6 users, 2020-003 Mojave security update. If running an earlier version of 10.14, run the 10.14.6 Combo update first.
Apple recommends you have these Macs according to: https://support.apple.com/kb/SP777?locale=en_US
- MacBook (Early 2015 or newer) [model identifier 8,1 or later]
- MacBook Air (Mid 2012 or newer) [model identifier 5,1 or later]
- MacBook Pro (Mid 2012 or newer) [model identifier 9,1 or later]
- Mac mini (Late 2012 or newer) [model identifier 6,1 or later]
- iMac (Late 2012 or newer) [model identifier 12,1 or later]
- Mac Pro (Late 2013; Mid 2010 and Mid 2012 models with recommended Metal-capable graphics cards) [model identifier 5,1 or later]
bracketed items in quotes were added for additional identification purposes. Your Apple menu -> About This Mac -> System Report or System Profiler gives you the model identifier.
All of the Macs that are older than 10.11, need to be updated to 10.11 first before installing Mojave.
The oldest MacBook Air, Mac mini, and iMac which can upgrade to Mojave shipped with 10.8, Mountain Lion.
The oldest MacBook Pro which can upgrade to Mojave shipped with 10.7, Lion.
The oldest MacBook had Mac OS X 10.10 installed.
The oldest Mac Pro on the list above with the compatible graphics cards, had 10.6 originally installed, and is the only Mac that shipped with 10.6 that can install Mojave. Before upgrading to 10.7 or later, read this tip as Apple has not reintroduced a series of software that made older Mac compatible software compatible with Intel Macs since 10.6.8's release.
Apple released Mojave on September 24, 2018. Reports from:
earlier than that date were made with pre-release Mojave versions and can not be relied upon.
September 30, 2018 driver additions from third party update pages:
HP, and Samsung (HP has become the download site for at least some Mojave Samsung printers, if you have Samsung see if any are Catalina compatible)
10.14.3 was released January 22, 2019. Note, some users are reporting 10.14.3 will not successfully apply as an update without an SMC reset as described how to do in this link: https://support.apple.com/en-us/HT201295
Frequently both updates and upgrades will require multiple reboots to successfully apply. Do NOT become impatient if you find the screen go blank during the update or upgrade process. If you press the power button to shut it down while it is rebooting for the update or upgrade, it may quit the process, and leave you stuck.
Use the macOS Mojave forum for operating system specific questions of other end users such as yourself.
are directions for creating a separate partition that will allow you to dual boot into an older operating system
if you find something not compatible with the current. Once you install the older operating system, you can use the Startup manager to dual boot to the older system.
You can't install Mojave from the Finder, unless you are running 10.13.6 or earlier.
The direct download link for Mojave is:
Note: some people have had trouble downloading the latest Mojave links. https://brave.com/ has been found to be a better web browser than some if you run into issues and is known to work on Mac OS X 10.10 and later.
Note: the 2020-004 security update for Mojave has a bug with the screen saver getting stuck. To repair delays in the screen saver, 'The workaround is to choose a non-picture screen saver such as Flurry, Message, etc.' (special thanks to community member dialabrain for this report.
To get the latest features and maintain the security, stability, compatibility, and performance of your Mac, it's important to keep your software up to date. Apple recommends that you always use the latest macOS that is compatible with your Mac.
Learn how to upgrade to macOS Big Sur, the latest version of macOS.
How To Upgrade To Os X Mojave
If a macOS installer can't be used on your Mac, the installer will let you know. For example, it might say that it's too old to be opened on this version of macOS, or that your Mac doesn't have enough free storage space for the installation.
To confirm compatibility before downloading, check the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite. You can also find compatibility information on the product-ID page for MacBook Pro, MacBook Air, MacBook, iMac, Mac mini, or Mac Pro.
Make a backup
Before installing, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
It takes time to download and install macOS, so make sure that you're plugged into AC power and have a reliable internet connection.
Safari uses these links to find the old installers in the App Store. After downloading from the App Store, the installer opens automatically.
How To Upgrade To Os X Mojave
- macOS Catalina 10.15 can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks
- macOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
- macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
Safari downloads the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. Open the disk image, then open the .pkg installer inside the disk image. It installs an app named Install [Version Name]. Open that app from your Applications folder to begin installing the operating system.
- macOS Sierra 10.12 can upgrade El Capitan, Yosemite, Mavericks, Mountain Lion, or Lion
- OS X El Capitan 10.11 can upgrade Yosemite, Mavericks, Mountain Lion, Lion, or Snow Leopard
- OS X Yosemite 10.10can upgrade Mavericks, Mountain Lion, Lion, or Snow Leopard
Upgrade To Os X Mojave
Follow the onscreen instructions in the installer. It might be easiest to begin installation in the evening so that it can complete overnight, if needed.
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs macOS and related firmware updates.
You might also be able to use macOS Recovery to reinstall the macOS you're using now, upgrade to the latest compatible macOS, or install the macOS that came with your Mac.