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.
MacOS High Sierra (version 10.13), first released on September 25, 2017, is the fourteenth major release of OS X, renamed macOS, Apple's desktop and server operating system for Macintosh computers. It is the successor to macOS Sierra and the predecceesor of macOS Mojave. Following the California landmark-based naming scheme introduced with Mac OS X Mavericks, High Sierra was named after the. Metal API, an application enhancing software, had debuted in this operating system, being available to 'all Macs since 2012'. Version 10.12: 'Sierra' macOS Sierra was announced on June 13, 2016, during the WWDC keynote speech. The update brought Siri to macOS, featuring several Mac-specific features, like searching for files. OS X Snow Leopard (10.6) was the first version of OS X with support for 64-bit kernels, allowing booting with either a 32-bit or 64-bit kernel. However, Apple did not support booting the 64-bit kernel in Macs that shipped with EFI32 firmware, even if they had 64-bit processors capable of running the 64-bit kernel. Apple added macOS 10.12 to its operating system series. You can download this new operating system update to your computer as an ISO file and test it on a virtual pc. After downloading macOS ISO to your computer, you can setup it on a virtual machine with virtualization programs such as VMware or VirtualBox. Apple has just made final macOS Sierra 10.12 download available to all after months of developer and public testing, meaning that compatible Mac owners can get their hands on it right now. Apple officially introduced macOS Sierra to the world back in June as part of the opening keynote of this year's Worldwide Developers Conference.
Learn how to upgrade to macOS Big Sur, the latest version of macOS.
Check compatibility
If a macOS installer can't be used on your Mac, the installer will let you know. For example, it might say that your Mac doesn't have enough free storage space for the installation, or that the installer is too old to be opened on this version of macOS.
If you want to check compatibility before downloading the installer, learn about the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite. You can also check compatible operating systems 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.
Download macOS
It takes time to download and install macOS, so make sure that you're plugged into AC power and have a reliable internet connection.
These installers from the App Store open automatically after you download them:
Macos 10 13
- 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, Lion
Your web browser 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
Install macOS
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 both macOS and related updates to your Mac firmware.
Learn more
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.
macOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Experience Mac to the fullest with a refined new design. Enjoy the biggest Safari update ever. Discover new features for Maps and Messages. Get even more transparency around your privacy.
Chances are, your Mac can run macOS Big Sur
The following models are supported:
- MacBook (2015 or later)
- MacBook Air (2013 or later)
- MacBook Pro (Late 2013 or later)
- Mac mini (2014 or later)
- iMac (2014 or later)
- iMac Pro (2017 or later)
- Mac Pro (2013 or later)
To see which model you have, click the Apple icon in your menu bar and choose About This Mac.
Make sure you're ready to upgrade.
Before you upgrade, we recommend that you back up your Mac. If your Mac is running OS X Mavericks 10.9 or later, you can upgrade directly to macOS Big Sur. You'll need the following:
- OS X 10.9 or later
- 4GB of memory
- 35.5GB available storage on macOS Sierra or later*
- Some features require an Apple ID; terms apply.
- Some features require a compatible internet service provider; fees may apply.
Upgrading is free and easy
Upgrading from macOS Catalina 10.15 or Mojave 10.14?
Go to Software Update in System Preferences to find macOS Big Sur. Click Upgrade Now and follow the onscreen instructions.
Upgrading from an older version of macOS?
If you're running any release from macOS 10.13 to 10.9, you can upgrade to macOS Big Sur from the App Store. If you're running Mountain Lion 10.8, you will need to upgrade to El Capitan 10.11 first.
If you don't have broadband access, you can upgrade your Mac at any Apple Store.
- OS X 10.9 or later
- 4GB of memory
- 35.5GB available storage on macOS Sierra or later*
- Some features require an Apple ID; terms apply.
- Some features require a compatible internet service provider; fees may apply.
For details about your Mac model, click the Apple icon at the top left of your screen and choose About This Mac. These Mac models are compatible with macOS Big Sur:
- MacBook (2015 or later)
- MacBook Air (2013 or later)
- MacBook Pro (Late 2013 or later)
- Mac mini (2014 or later)
- iMac (2014 or later)
- iMac Pro (2017 or later)
- Mac Pro (2013 or later)
Siri
Requires a broadband internet connection and microphone (built-in or external).
Hey Siri
Supported by the following Mac models:
- MacBook Pro (2018 or later)
- MacBook Air (2018 or later)
- iMac Pro (2017 or later)
Dictation, Voice Control, and Voice Memos
Windows 7 Operating System Free Download
Requires a microphone (built-in or external).
Spotlight Suggestions
Requires a broadband internet connection.
Gestures
Requires a Multi-Touch trackpad, Force Touch trackpad, Magic Trackpad, or Magic Mouse.
Force Touch gestures require a Force Touch trackpad.
VoiceOver gestures require a Multi-Touch trackpad, Force Touch trackpad, or Magic Trackpad.
Photo Booth
Requires a FaceTime or iSight camera (built-in or external) or USB video class (UVC) camera.
FaceTime
Audio calls require a microphone (built-in or external) and broadband internet connection.
Video calls require a built-in FaceTime camera, an iSight camera (built-in or external), or a USB video class (UVC) camera; and broadband internet connection.
Apple TV
High dynamic range (HDR) video playback is supported by the following Mac models:
- MacBook Pro (2018 or later)
- iMac Pro (2017 or later)
- Mac Pro (2019) with Pro Display XDR
Dolby Atmos soundtrack playback is supported by the following Mac models:
- MacBook Air (2018 or later)
- MacBook Pro (2018 or later)
Sidecar
Supported by the following Mac models:
- MacBook (2016 or later)
- MacBook Air (2018 or later)
- MacBook Pro (2016 or later)
- Mac mini (2018 or later)
- iMac (late 2015 or later)
- iMac Pro (2017 or later)
- Mac Pro (2019)
Supported by all iPad models with Apple Pencil support:
- 12.9-inch iPad Pro
- 11-inch iPad Pro
- 10.5-inch iPad Pro
- 9.7-inch iPad Pro
- iPad (6th generation or later)
- iPad mini (5th generation)
- iPad Air (3rd and 4th generation)
Continuity Camera
Requires an iPhone or iPad that supports iOS 12 or later.
Continuity Sketch and Continuity Markup
Requires an iPhone with iOS 13 or later or an iPad with iPadOS 13 or later.
Handoff
Requires an iPhone or iPad with a Lightning connector or with USB-C and iOS 8 or later.
Instant Hotspot
Requires an iPhone or iPad with cellular connectivity, a Lightning connector or USB-C, and iOS 8.1 or later. Requires Personal Hotspot service through your carrier.
Universal Clipboard
Requires an iPhone or iPad with a Lightning connector or with USB-C and iOS 10 or later.
Auto Unlock
Requires an Apple Watch with watchOS 3 or later or an iPhone 5 or later.
Approve with Apple Watch
Requires an Apple Watch with watchOS 6 or later or an iPhone 6s or later with iOS 13 or later.
Apple Pay on the Web
Requires a MacBook Pro or MacBook Air with Touch ID, an iPhone 6 or later with iOS 10 or later, or an Apple Watch with watchOS 3 or later.
Phone Calling
Requires an iPhone with iOS 8 or later and an activated carrier plan.
SMS
Requires an iPhone with iOS 8.1 or later and an activated carrier plan.
Home
Requires an iPhone with iOS 12 or later and a configured Home app.
AirDrop
AirDrop to iOS and iPadOS devices requires an iPhone or iPad with a Lightning connector or with USB-C and iOS 7 or later.
AirPlay
AirPlay Mirroring requires an Apple TV (2nd generation or later).
AirPlay for web video requires an Apple TV (2nd generation or later).
Peer-to-peer AirPlay requires a Mac (2012 or later) and an Apple TV (3rd generation rev A, model A1469 or later) with Apple TV software 7.0 or later.
Time Machine
Requires an external storage device (sold separately).
Maps electric vehicle routing
Requires an iPhone with iOS 14 and a compatible electric vehicle.
Maps license plate restrictions
Requires an iPhone running iOS 14 or an iPad running iPadOS 14.
Boot Camp
Allows Boot Camp installations of Windows 10 on supported Mac models.
Exchange Support
Requires Microsoft Office 365, Exchange 2016, Exchange 2013, or Exchange Server 2010. Installing the latest Service Packs is recommended.
Windows Migration
Supports OS X 10.7 or later and Windows 7 or later.
App Store
Available only to persons age 13 or older in the U.S. and many other countries and regions.
Photos
The improved Retouch tool is supported on the following Mac models:
- MacBook Pro (15-inch and 16-inch models) introduced in 2016 or later
- iMac (Retina 5K models) introduced in 2014 or later
- iMac (Retina 4K models) introduced in 2017 or later
- iMac Pro (2017 or later)
- Mac Pro introduced in 2013 or later
- Apple Books
- Apple News
- App Store
- Automator
- Calculator
- Calendar
- Chess
- Contacts
- Dictionary
- DVD Player
- FaceTime
- Find My
- Font Book
- Home
- Image Capture
- Launchpad
- Maps
- Messages
- Mission Control
- Music
- Notes
- Photo Booth
- Photos
- Podcasts
- Preview
- QuickTime Player
- Reminders
- Safari
- Siri
- Stickies
- Stocks
- System Preferences
- TextEdit
- Time Machine
- TV
- Voice Memos
- Activity Monitor
- AirPort Utility
- Audio MIDI Setup
- Bluetooth File Exchange
- Boot Camp Assistant
- ColorSync Utility
- Console
- Digital Color Meter
- Disk Utility
- Grapher
- Keychain Access
- Migration Assistant
- Screenshot
- Screen Time
- Script Editor
- Sidecar
- System Information
- Terminal
- VoiceOver Utility
- Arabic
- Catalan
- Croatian
- Simplified Chinese
- Traditional Chinese
- Traditional Chinese (Hong Kong)
- Czech
- Danish
- Dutch
- English (Australia)
- English (UK)
- English (U.S.)
- Finnish
- French
- French (Canada)
- German
- Greek
- Hebrew
- Hindi
- Hungarian
- Indonesian
- Italian
- Japanese
- Korean
- Malay
- Norwegian
- Polish
- Brazilian Portuguese
- Portuguese
- Romanian
- Russian
- Slovak
- Spanish
- Spanish (Latin America)
- Swedish
- Thai
- Turkish
- Ukrainian
- Vietnamese
