Upgrade to macOS Big Sur
Before installing this upgrade, make sure that your Mac is ready.
Safari uses these links to find the old installers in the App Store. After downloading from the App Store, the installer opens automatically. 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. The evolution of macOS (and Mac OS X) Apple's desktop operating system, macOS, has been the staple crop for its iMacs and MacBooks. Here we go back to where it all began in 2001 (when it was known.
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.
Mac El Capitan Safari VersionFree 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
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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
El Capitan Safari Version Download
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
Have a question?
Ask everyone. Our Apple Support Community can help you find answers.Ask now
Tell us how we can help
Answer a few questions and we'll help you find a solution.Get support
Most improvements in OS X 10:11 El Capitan are not immediately visible to the ordinary OS X user. Especially under the hood many improvements have been made in the area of performance and safety.
Do you want OS X 10:11 El Capitan faster than you can use the OS X Terminal Commands 10 below. The commands disable various delays from that standard built by Apple.
Open OS X Terminal, which you can find in the folder: Applications ▸ Utilities. Copy and paste the following command either in the Terminal window.
OS X user interface
1. Disable animations when opening and closing windows.
defaults write NSGlobalDomain NSAutomaticWindowAnimationsEnabled -bool false
2. Disable animations when opening a Quick Look window.
defaults write -g QLPanelAnimationDuration -float 0
3. Accelerated playback when adjusting the window size (Cocoa applications).
defaults write NSGlobalDomain NSWindowResizeTime -float 0.001
4. Disable animation when opening the Info window in OS X Finder (cmd⌘ + i).
defaults write com.apple.finder DisableAllAnimations -bool true
5. Disable animations when you open an application from the Dock.
defaults write com.apple.dock launchanim -bool false
6. Make all animations faster that are used by Mission Control.
defaults write com.apple.dock expose-animation-duration -float 0.1
7. Disable the delay when you hide the Dock
defaults write com.apple.Dock autohide-delay -float 0
8. Disable the animation when you sending and replying an e-mail
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defaults write com.apple.mail DisableReplyAnimations -bool true
defaults write com.apple.mail DisableSendAnimations -bool true
9. Macos yosemite patcher download. Disable the standard delay in rendering a Web page.
defaults write com.apple.Safari WebKitInitialTimedLayoutDelay 0.25
10. The keyboard react faster to keystrokes (not equally useful for everyone
defaults write NSGlobalDomain KeyRepeat -int 0
When the commands are conducted in OS X Terminal, you need to reboot your Mac. After re-login you will notice that your Mac responds smoother.
If you want any of the above commands undo than is possible using the defaults delete command.
defaults delete domainkey
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Example: To undo the adjustment number 10, type the command:
defaults delete NSGlobalDomain KeyRepeat
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After undoing, you need to restart your Mac.