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

Mac OS X is Apple 's operating system for its line of Macintosh computers. Its interface, known as Aqua, is built on a Unix foundation. Just like Windows, iOS, and Mac OS, Linux is an operating system. In fact, one of the most popular platforms on the planet, Android, is powered by the Linux operating system. An operating system is software that manages all of the hardware resources associated with your desktop or laptop. As far as accessibility goes, Mac OS X Lion's VoiceOver feature allows visually impaired people to access their computers more easily. For example, the computer can read documents out loud. The operating system includes voices that speak in 22 different languages.

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

Requires a microphone (built-in or external). Mp3 tag editor for mac.

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
• Mail
• 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

So, you’ve decided to download an older version of Mac OS X. There are many reasons that could point you to this radical decision. To begin with, some of your apps may not be working properly (or simply crash) on newer operating systems. Also, you may have noticed your Mac’s performance went down right after the last update. Finally, if you want to run a parallel copy of Mac OS X on a virtual machine, you too will need a working installation file of an older Mac OS X. Further down we’ll explain where to get one and what problems you may face down the road.

A list of all Mac OS X versions

We’ll be repeatedly referring to these Apple OS versions below, so it’s good to know the basic macOS timeline.

Free Operating Systems Software Downloads

STEP 1. Prepare your Mac for installation

Given your Mac isn’t new and is filled with data, you will probably need enough free space on your Mac. This includes not just space for the OS itself but also space for other applications and your user data. One more argument is that the free space on your disk translates into virtual memory so your apps have “fuel” to operate on. The chart below tells you how much free space is needed.

Note, that it is recommended that you install OS on a clean drive. Next, you will need enough disk space available, for example, to create Recovery Partition. Here are some ideas to free up space on your drive:

• Uninstall large unused apps
• Empty Trash Bin and Downloads
• Locate the biggest files on your computer:

Go to Finder > All My Files > Arrange by size
Then you can move your space hoggers onto an external drive or a cloud storage.
If you aren’t comfortable with cleaning the Mac manually, there are some nice automatic “room cleaners”. Our favorite is CleanMyMac as it’s most simple to use of all. It deletes system junk, old broken apps, and the rest of hidden junk on your drive.

Download CleanMyMac for OS 10.4 - 10.8 (free version)

Download CleanMyMac for OS 10.9 (free version)

Download CleanMyMac for OS 10.10 - 10.14 (free version)

STEP 2. Get a copy of Mac OS X download

Normally, it is assumed that updating OS is a one-way road. That’s why going back to a past Apple OS version is problematic. The main challenge is to download the OS installation file itself, because your Mac may already be running a newer version. If you succeed in downloading the OS installation, your next step is to create a bootable USB or DVD and then reinstall the OS on your computer.

How to download older Mac OS X versions via the App Store

If you once had purchased an old version of Mac OS X from the App Store, open it and go to the Purchased tab. There you’ll find all the installers you can download. However, it doesn’t always work that way. The purchased section lists only those operating systems that you had downloaded in the past. But here is the path to check it:

1. Click the App Store icon.
2. Click Purchases in the top menu.
3. Scroll down to find the preferred OS X version.
4. Click Download.

This method allows you to download Mavericks and Yosemite by logging with your Apple ID — only if you previously downloaded them from the Mac App Store.

Without App Store: Download Mac OS version as Apple Developer

If you are signed with an Apple Developer account, you can get access to products that are no longer listed on the App Store. If you desperately need a lower OS X version build, consider creating a new Developer account among other options. The membership cost is $99/year and provides a bunch of perks unavailable to ordinary users.

Os X Operating Systems

Nevertheless, keep in mind that if you visit developer.apple.com/downloads, you can only find 10.3-10.6 OS X operating systems there. Newer versions are not available because starting Mac OS X Snow Leopard 10.7, the App Store has become the only source of updating Apple OS versions.

Purchase an older version of Mac operating system

You can purchase a boxed or email version of past Mac OS X directly from Apple. Both will cost you around $20. For the reason of being rather antiquated, Snow Leopard and earlier Apple versions can only be installed from DVD.

Buy a boxed edition of Snow Leopard 10.6
Get an email copy of Lion 10.7
Get an email copy of Mountain Lion 10.8

The email edition comes with a special download code you can use for the Mac App Store. Note, that to install the Lion or Mountain Lion, your Mac needs to be running Snow Leopard so you can install the newer OS on top of it.

How to get macOS El Capitan download

If you are wondering if you can run El Capitan on an older Mac, rejoice as it’s possible too. But before your Mac can run El Capitan it has to be updated to OS X 10.6.8. So, here are main steps you should take:

1. Install Snow Leopard from install DVD.
2. Update to 10.6.8 using Software Update.
3. Download El Capitan here.

Os X Operating Systems List

“I can’t download an old version of Mac OS X”

If you have a newer Mac, there is no physical option to install Mac OS versions older than your current Mac model. For instance, if your MacBook was released in 2014, don’t expect it to run any OS released prior of that time, because older Apple OS versions simply do not include hardware drivers for your Mac.

But as it often happens, workarounds are possible. There is still a chance to download the installation file if you have an access to a Mac (or virtual machine) running that operating system. For example, to get an installer for Lion, you may ask a friend who has Lion-operated Mac or, once again, set up a virtual machine running Lion. Then you will need to prepare an external drive to download the installation file using OS X Utilities.

After you’ve completed the download, the installer should launch automatically, but you can click Cancel and copy the file you need. Below is the detailed instruction how to do it.

STEP 3. Install older OS X onto an external drive

The following method allows you to download Mac OS X Lion, Mountain Lion, and Mavericks.

1. Start your Mac holding down Command + R.
2. Prepare a clean external drive (at least 10 GB of storage).
3. Within OS X Utilities, choose Reinstall OS X.
4. Select external drive as a source.
5. Enter your Apple ID.

Now the OS should start downloading automatically onto the external drive. After the download is complete, your Mac will prompt you to do a restart, but at this point, you should completely shut it down. Now that the installation file is “captured” onto your external drive, you can reinstall the OS, this time running the file on your Mac.

1. Boot your Mac from your standard drive.
2. Connect the external drive.
3. Go to external drive > OS X Install Data.

Locate InstallESD.dmg disk image file — this is the file you need to reinstall Lion OS X. The same steps are valid for Mountain Lion and Mavericks.

How to downgrade a Mac running later macOS versions

If your Mac runs macOS Sierra 10.12 or macOS High Sierra 10.13, it is possible to revert it to the previous system if you are not satisfied with the experience. You can do it either with Time Machine or by creating a bootable USB or external drive.
Instruction to downgrade from macOS Sierra

Instruction to downgrade from macOS High Sierra

Instruction to downgrade from macOS Mojave

Os X Operating System Download

Instruction to downgrade from macOS Catalina

Before you do it, the best advice is to back your Mac up so your most important files stay intact. In addition to that, it makes sense to clean up your Mac from old system junk files and application leftovers. The easiest way to do it is to run CleanMyMac X on your machine (download it for free here).

Visit your local Apple Store to download older OS X version

If none of the options to get older OS X worked, pay a visit to nearest local Apple Store. They should have image installations going back to OS Leopard and earlier. You can also ask their assistance to create a bootable USB drive with the installation file. So here you are. We hope this article has helped you to download an old version of Mac OS X. Below are a few more links you may find interesting.