This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the. Apple Pay for Sierra: Apple Pay, the company's mobile payment and digital wallet service, is now available in Sierra. With Safari, tap the Apple Pay button on a supporting e-commerce site and authorize your purchase on your iPhone or Apple Watch. Messages: In iOS 10 the Messages update is huge; in Sierra, not so much. Still, Mac users get some. Explore the world of Mac. Check out MacBook Pro, iMac Pro, MacBook Air, iMac, and more. Visit the Apple site to learn, buy, and get support.
macOS Catalina gives you more of everything you love about Mac. Experience music, TV, and podcasts in three all-new Mac apps. Enjoy your favorite iPad apps now on your Mac. Extend your workspace and expand your creativity with iPad and Apple Pencil. And discover smart new features in the apps you use every day. Now you can take everything you do above and beyond.
Check compatibility
If you're using one of these computers with OS X Mavericks or later,* you can install macOS Catalina. Bit download. Your Mac also needs at least 4GB of memory and 12.5GB of available storage space, or up to 18.5GB of storage space when upgrading from OS X Yosemite or earlier.
MacBook introduced in 2015 or later
MacBook Air introduced in 2012 or later
MacBook Pro introduced in 2012 or later
Mac mini introduced in 2012 or later
iMac introduced in 2012 or later
iMac Pro (all models)
Mac Pro introduced in 2013 or later
MacBook Air introduced in 2012 or later
MacBook Pro introduced in 2012 or later
Mac mini introduced in 2012 or later
iMac introduced in 2012 or later
iMac Pro (all models)
Mac Pro introduced in 2013 or later
* To upgrade from Lion or Mountain Lion, first upgrade to El Capitan, then upgrade to Catalina. To find your macOS version, Mac model, memory, and storage space, choose About This Mac from the Apple menu . If your Mac isn't compatible with macOS Catalina, the installer will let you know. View the complete list of compatible computers.
![Apple mac os sierra download iso Apple mac os sierra download iso](/uploads/1/1/8/3/118355003/403785477.png)
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. Learn how to back up your Mac.
Get connected
Apple Mac Os Sierra Free Download
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS Catalina
If you're using macOS Mojave, get macOS Catalina via Software Update: Choose Apple menu > System Preferences, then click Software Update.
Or use this link to open the macOS Catalina page on the App Store: Get macOS Catalina. Then click the Get button or iCloud download icon.
Begin installation
![Download Download](/uploads/1/1/8/3/118355003/437738861.jpg)
After downloading, the installer opens automatically.
Click Continue and follow the onscreen instructions. You might find it 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.
Allow installation to complete
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 both macOS and related updates to your Mac firmware.
Stay up to date
After installing macOS Catalina, you will be notified when updates to macOS Catalina are available. You can also use Software Update to check for updates: Choose Apple menu > System Preferences, then click Software Update.
Or get macOS Catalina automatically
If you're using OS X El Capitan v10.11.5 or later and your App Store preferences or Software Update preferences are set to download new updates when available, macOS Catalina will download conveniently in the background, making it even easier to upgrade. A notification will inform you when macOS Catalina is ready to be installed. Click Install to get started, or dismiss the notification to install later. When you're ready to install, just open the file named Install macOS Catalina from your Applications folder.
Learn more
- If the installer shows a list of apps that are not optimized for your Mac, learn about 32-bit app compatibility, then choose whether to proceed with the installation.
- For the strongest security and latest features, upgrade to macOS Catalina. If you have hardware or software that isn't compatible with Catalina, you might be able to install an earlier macOS, such as Mojave, High Sierra, Sierra, or El Capitan.
- You can also use macOS Recovery to reinstall macOS.
Siri Comes to Mac with All-New Capabilities for the Desktop
Cupertino, California — Apple today announced that macOS Sierra, the latest major release of the world's most advanced desktop operating system, is now available as a free update. macOS Sierra brings Siri to the Mac with intelligent and helpful features users know and love from iPhone and iPad, along with all-new capabilities designed specifically for use on the desktop. Features like Universal Clipboard, iCloud Desktop and Documents, Auto Unlock and Apple Pay on the web help your Mac work even better with other Apple devices. And Photos gets an update with a new Memories feature that automatically creates curated collections of your favorite photos and videos.
Siri on the Mac can help send messages and email, find documents, look up information, search a user's photo library, adjust system preferences and more. Users can also drag and drop Siri results into documents or pin them into their Today view for later reference. Universal Clipboard allows users to copy content from an app on one Apple device and paste it into another app on a different Apple device. With iCloud Desktop and Documents users can now access the files on their Desktop from iPhone and iPad. And Auto Unlock lets users automatically log into their Mac when they are wearing an authenticated Apple Watch.
Apple Pay on the web makes the online shopping experience in Safari more convenient and secure than ever. Shoppers can now click the Apple Pay button at checkout on nearly 300,000 participating websites, including 1-800-Flowers, Gilt, Instacart, Lululemon, Warby Parker and more, and then complete their purchase with Touch ID on iPhone 6 or later or with Apple Watch. Users' credit or debit card information is not shared with online merchants and strong encryption protects all communication between a user's device and Apple Pay servers.
Photos introduces Memories, which highlights favorite and forgotten moments in users' photo libraries by automatically creating curated collections of occasions like birthday parties or family vacations. Photos uses advanced computer vision to identify faces, objects and scenes in your images, so photos can be searched by who and what is in them. An all-new Brilliance editing tool brightens dark areas and pulls in highlights to make photos look richer and more vibrant.
- Messages makes conversations more interesting, allowing users to preview web links and play video clips from right within the app; respond to messages with a Tapback like a heart, thumbs up and more directly onto a message bubble; and send bigger emoji for more message impact.
- Tabs are now available across Mac apps that support multiple windows, including Maps, Mail, Pages, Numbers, Keynote, TextEdit, and even third-party apps.
- Picture in Picture floats video from Safari or iTunes in a window over the desktop. The window can be resized, dragged and pinned to any corner of the screen so users can watch video while they work.
- Optimized Storage frees up space when a Mac starts getting full by storing infrequently used items in the cloud and helping users remove apps and files they no longer need.
- Apple Music in iTunes makes it even easier to discover new music and browse exclusives and new releases.
Availability
macOS Sierra is available as a free update starting today from the Mac App Store. macOS Sierra supports all Macs introduced since late 2009. Some features may not be available in all regions or all languages. For more information, please visit: apple.com/macos/sierra.
Images from macOS Sierra
Apple revolutionized personal technology with the introduction of the Macintosh in 1984. Today, Apple leads the world in innovation with iPhone, iPad, Mac, Apple Watch and Apple TV. Apple’s four software platforms — iOS, macOS, watchOS and tvOS — provide seamless experiences across all Apple devices and empower people with breakthrough services including the App Store, Apple Music, Apple Pay and iCloud. Apple’s 100,000 employees are dedicated to making the best products on earth, and to leaving the world better than we found it.
Press Contacts
Starlayne Meza
Apple
(408) 974-3391
Apple Media Helpline
Apple Mac Os High Sierra Download
(408) 974-2042