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. Learn how to set up and use macOS. Find all the topics, resources, and contact options you need for macOS. I’m trying to re-install OS X on a mac mini currently running Yosemite 10.10.3 from the built in recovery partition. I have erased HD, de-authorised from iTunes and signed out of iCloud in readiness to sell the machine – however it is only re-installing Mountain Lion – which is the version of OS X that came when purchased.
The classic OS X 10.12, or rather macOS upgrade, introduced tons of features anyone would still want on their Mac. Why? Because, it's well-tested and secure. Now we'll take a quick look at the legendary macOS Sierra upgrade. (In case you want to upgrade your Mac to macOS 10.13 High Sierra, check out this guide.)
Interestingly, it first brought Siri to your Mac. This is great news for everyone who’s already used to her help on iOS. Then, there’s Watch unlocking for Mac, there’s one-click Apple Pay, tabs in apps, and cross-device copypasting. Just to name a few.
So, if you were on the fence about upgrading to Sierra, and in fact, any newer OS, go right ahead. Your Mac deserves a refreshment.
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How to upgrade macOS: Sierra 10.12 compatibility list
As with the previous versions, macOS Sierra is available for a limited list of Mac models.
Here are the models of Macs that are compatible with macOS 10.12 and can upgrade to Sierra:
| MacBook Pro | MacBook Air | Mac mini |
| Mid 2010 or newer | Late 2010 or newer | Mid 2010 or newer |
| Mac Pro® | MacBook | iMac |
| Mid 2010 or newer | Late 2009 or newer | Late 2009 or newer |
Does order matter when you upgrade macOS?
If your current operating system is OS X Lion (10.7), you can skip a few versions, and upgrade directly to macOS High Sierra. To upgrade to Sierra from, say, Mavericks, you’ll have to consequently upgrade to Yosemite and then to El Capitan first.
Check Your macOS for Sierra Compatibility
These OS versions can upgrade to Sierra:
- OS X Mountain Lion v10.8
- OS X Mavericks v10.9
- OS X Yosemite v10.10
- OS X El Capitan v10.11
Here’s how to find out which OS version you’re running now:
- Click Apple icon in the top left corner.
- Choose About this Mac.
- There you have it, in capital letters.
Memory (RAM): 2 GB (preferably 4 GB)
Sierra is pretty lightweight, so you only need 2 GB of RAM to upgrade. Cool, eh?
Disk space: 8 GB of free space on drive.
In the same About this Mac menu select 'Storage' tab. In front of the multi-colored bar, you will see the phrase, 'X.XX GB free out of XX.XX GB.' If you don't have at least 8 GB of free space, you should delete some old files.
Before you update macOS, don’t forget to:
Clean up your Mac
This is essential if you want a fast and effortless update, and glitchless work of your new macOS. And it’s also pretty easy. To give your Mac a cleanup, you need to get rid of system junk, uninstall extra apps, and clean some old caches. If that sounds like a lot of work, you can get a Mac cleaner like CleanMyMac for the job.
How to update your Mac: Clean it up first
- Launch it.
- Hit Scan to find all the extra files you can delete.
- Press Run.
As you can see, I have 8.56 GB worth of caches, obsolete language files, broken downloads. You'll feel great getting rid of them.
That will give your Mac a basic system cleanup, but CleanMyMac is going to come in handy after the update as well. It monitors your Mac’s health, helps you speed up the system and remove unnecessary apps (Trashing doesn’t fully uninstall apps, by the way).
Back up your Mac
This is basic common sense before any Mac software update you’d like to undertake. Why? Well, because sometimes updates happen less smoothly than you’d like them to. To make sure you have all your information and files saved up neatly, you need a backup. To back up your Mac, you need to activate Time Machine.
- Open your Applications folder.
- Choose Time Machine.
- 'Select Backup Disk…'
Note: You may need to first choose to 'Set Up Time Machine.' - Choose where you'd like to store your backup.
- Both an external drive or an Airport Time Capsule fit.
- Switch the toggle on the left, from 'OFF' to 'ON.' Right beneath the name of your storage device, you'll see 'Oldest backup,' 'Latest backup,' and 'Next backup' — Your backup will begin within 5 minutes. To speed it up, click the arrow clock icon next to the Date & Time at the top-right of the menu bar and select 'Back Up Now.'
How to download macOS Sierra (or newer macOS) and install it
macOS Sierra is increasingly becoming a relic. Since 2020, the newest available macOS version is Big Sur. But it all comes down to hardware. Your Mac can only upgrade to the latest version its hardware can support. If your Mac is from around 2012 it can update as high up as to macOS Catalina. If your Mac is from 2010 or older, its limit is macOS High Sierra.
To download any new macOS and install it you’ll need to do the next:
1. Open System Preferences.. in the Apple menu.
2. Click on Software Updates.
On top of the list you'll see the latest macOS version your Mac can download. In our case, it's macOS Big Sur.
Another way to do it is via the Mac App Store.
- Open App Store.
- Click the Updates tab.
- You’ll see macOS updates available for your Mac.
- Click Update.
Wait for macOS download and installation. Your Mac will restart when it’s done.
Now you have a new OS.
For historic interest, this is how macOS Sierra looked back then when it was still available in the Mac App Store. Now, it can't be found there anymore.
Download macOS installers directly from Apple
For users of past operating systems Apple created a handy a list of macOS installers. They go as far back as to macOS Yosemite. The first 3 of them will open and start the update process automatically.
- macOS High Sierra 10.13
The 3 following installers will download macOS as a disk image (.dmg) After you unpack it, the macOS updater app will appear in your Applications.
We hope this guide has been of use, and don’t forget to clean up your Mac and back it up before you get the classic macOS! Cheers.
Can You Upgrade From Lion To High Sierra
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.
Upgrade Os X Mountain Lion To High Sierra National Park
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)
Dictation, Voice Control, and Voice Memos
Requires a microphone (built-in or external).
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
Zoom installer for mac. Requires an iPhone with iOS 13 or later or an iPad with iPadOS 13 or later.
Handoff
Mac Os Mountain Lion To High Sierra
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. Ubuntu usb on macos.
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).
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
Can You Upgrade From Mountain Lion To High Sierra
Available only to persons age 13 or older in the U.S. and many other countries and regions.
Photos
Upgrade Os X Mountain Lion To High Sierra Madre
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
Can I Upgrade Directly From Mountain Lion To High Sierra
- Apple Books
- Apple News
- App Store
- Automator
- Calculator
- Calendar
- Chess
- Contacts
- Dictionary
- DVD Player
- FaceTime
- Find My
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- Home
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- Launchpad
- Maps
- Messages
- Mission Control
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- Notes
- Photo Booth
- Photos
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- 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
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