- For example, in May 2018, the latest release of macOS was macOS 10.13 High Sierra. This release is supported with security updates, and the previous releases—macOS 10.12 Sierra and OS X 10.11 El Capitan—were also supported. When Apple releases macOS 10.14, OS X 10.11 El Capitan will very likely no longer be supported.
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Check compatibility
You can upgrade to macOS Sierra from OS X Lion or later on any of the following Mac models. Your Mac also needs at least 2 GB of memory and 8.8 GB of available storage space.
MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid-2010 or later
Mac mini introduced in mid-2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid-2010 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid-2010 or later
Mac mini introduced in mid-2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid-2010 or later
MacOS Sierra (version 10.12) is the thirteenth major release of macOS (previously Mac OS X from 2001 to 2012 and OS X from 2012 to 2016), Apple Inc.' S desktop and server operating system for Macintosh. It was the first version of the operating system issued under the June 2016 rebranding as macOS.
To find your Mac model, memory, storage space and macOS version, choose About This Mac from the Apple menu . If your Mac isn’t compatible with macOS Sierra, the installer will let you know.
Macos High Sierra Release Date
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Find out how to back up your Mac.
Get connected
It takes time to download and install macOS, so make sure you have a reliable Internet connection. If you’re using a Mac notebook computer, plug it into an AC power source.
Download macOS Sierra
Copy locked files with robocopy using b parameter. Jboss application server for mac os x. For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system.
Apple Macos High Sierra Download
If you still need macOS Sierra, use this link: Download macOS Sierra. A file named InstallOS.dmg will be downloaded to your Mac.
Install the macOS installer
![Apple Apple](https://cdn.cultofmac.com/wp-content/uploads/2013/05/Screen-Shot-2013-05-16-at-14.56.33.jpg)
Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallOS.pkg.
Follow the on-screen instructions, which will guide you through the necessary steps to complete the installation.
Begin installation
After the installation has been completed, open the Applications folder on your Mac and then double-click the file named Install macOS Sierra.
Click Continue and follow the on-screen instructions. Midi keyboard software. You may find it easiest to start the installation in the evening so that it can be completed overnight, if needed.
Allow the installation to be completed
Please allow the installation to be completed without putting your Mac to sleep or closing its lid. Your Mac may restart, display a progress bar or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.
Learn more
Apple Macos Sierra Release Date 2019
- If you have hardware or software that isn't compatible with macOS Sierra, you may be able to install the previous version, OS X El Capitan.
- macOS Sierra can't be installed on top of a later version of macOS, but you can erase your disk first or install on another disk.
- You can use macOS Recovery to reinstall macOS.