Upgrade to macOS Big Sur
- Upgrade From Mountain Lion To Mavericks
- Upgrade From Mountain Lion To Sierra
- Upgrade From Mountain Lion To El Capitan
Safari automatically keeps an eye out for any saved passwords that may have been involved in a data breach. Using advanced cryptographic techniques, Safari periodically checks a derivation of your passwords against an updated list of compromised credentials. If a breach is discovered, Safari helps you upgrade your existing passwords. How To: Upgrade to Mountain Lion from Leopard (OS X 10.5 to 10.8) How To: Reformat Mac OS X Without a Recovery Disc or Drive How To: Install an Off-the-Shelf Hard Drive in an Xbox 360 (Get 10x the GB for Your Money).
Before installing this upgrade, make sure that your Mac is ready.
macOS Big Sur supports most Mac models introduced in 2013 and later.View compatible Mac models
Make a backup
Before you upgrade, make a complete backup with Time Machine, or store your files in iCloud.Learn how to back up your Mac
Free up space
If the installer needs more storage space to upgrade, you can free up space using tools that come with your Mac.Free up storage space
Download macOS Big Sur
If you’re using macOS Mojave or later, choose Apple menu > System Preferences, then click Software Update. If you’re using an earlier macOS, use the App Store instead.Learn how to download and install macOS Big SurGo to the App Store
Upgrade From Mountain Lion To Mavericks
Get to know macOS Big Sur
Learn about some of the new features of macOS Big Sur.
Control Center brings favorite controls such as Bluetooth, Wi-Fi, Do Not Disturb, and Sound together in a single place—so you can easily adjust them at any time.Use Control Center
Notification Center puts notifications and>
Customize your start page, navigate with ease using the new tab bar, and access a new privacy report to see just how Safari protects your privacy as you browse.Get to know Safari
Discover great places around the world and navigate easier with guides, cycling directions, indoor maps, Look Around, electric vehicle routing, and more.
Send messages to friends and family using new tools that make it easier to keep track of group conversations and give you fun, engaging ways to express yourself.Use MessagesLearn more on YouTube
Use the expanded editing capabilities in Photos to easily make simple changes and more advanced adjustments to your photos.Learn how to edit your photos
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Ask everyone. Our Apple Support Community can help you find answers.Ask now
Upgrade From Mountain Lion To Sierra
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Answer a few questions and we'll help you find a solution.Get support
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