- Yosemite Apple Support Desk
- Yosemite Apple Support Center
- Apple Download Yosemite
- Yosemite Apple Support App
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Upgrade to macOS Big Sur
Before installing this upgrade, make sure that your Mac is ready.
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Check compatibility
macOS Big Sur supports most Mac models introduced in 2013 and later.
View compatible Mac modelsMake a backup
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Before you upgrade, make a complete backup with Time Machine, or store your files in iCloud.
Learn how to back up your MacFree 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 spaceDownload 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.
Get to know macOS Big Sur
Learn about some of the new features of macOS Big Sur.
Control Center
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 CenterNotification Center
Apple usb flash drive. Notification Center puts notifications and>
Safari
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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 SafariMaps
Discover great places around the world and navigate easier with guides, cycling directions, indoor maps, Look Around, electric vehicle routing, and more.
Messages
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 YouTubePhotos
Use the expanded editing capabilities in Photos to easily make simple changes and more advanced adjustments to your photos.
Learn how to edit your photosHave a question?
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Get supportOS 10.10 Yosemite for Mac
OS X 10.10, codenamed Syrah and officially named Yosemite, is the 2014 version of the Mac operating system from Apple, released on October 16, 2014. OS X 10.10 was shown off at WWDC 2014 on June 2. In addition to new features, OS X brings interface and experience refinements to Apple's desktop operating system, similar in spirit if not exact execution to the iOS 7 makeover of 2013 — interface depth and translucency effects, textual clarity and other elements to improve the overall user experience.
But that's just scratching the surface. There are a ton of new features under the hood.
OS X 10.10 Yosemite design language
Last year Jony Ive and Apple's design team spent so much time working on iOS 7's new look, OS X mostly got the linen and the leather — if not the felt — stripped out but not much else. The intent was always to go back and give OS X the design attention it deserved as well.
Yosemite employs clearer, smarter and easier-to-understand controls, with streamline toolbars, translucent elements and clean, consistent icon design. An updated system font also improves readability. Depth, deference and clarity are the design guidelines Apple first employed in iOS 7, and now we're seeing that work continue over to Yosemite.
Continuity
Apple doesn't seem compelled to blur the lines between iOS 8 and OS X 10.10 as much as obliterate them, at least where it makes sense to. Continuity is what Apple's calling that — design that enables one device to complement the other. Transfer data from android to pc software. Handoff, for example, lets you start an activity on your iPad or iPhone and continue it on your Mac. And Instant Hotspot lets your Mac use your phone more easily. SMS and MMS messages sent to your phone will automatically appear in Messages on all your devices; you can even make and receive phone calls on your Mac when your iPhone is on the same network.
OS X 10.10 and AirDrop
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AirDrop debuted on the Mac but after several initial attempts to bring it to iOS were shot down as overly complex, the version that finally shipped in iOS 7 wasn't even compatible with the Mac.
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That changes with OS X 10.10 as the teams at Apple get their protocols back in sync and their cross-platform beaming fully in order.
OS X 10.10 Notification Center
Notification Center gets a rework with the new Today view — a quick look at everything you need to know. Apple's also introducing Notification Center Widgets to help you view your calendar, weather, stocks, reminders and a World Clock, and the API is open for developers to use to create custom Widgets that can be downloaded from the Mac App Store.
OS X 10.10 Spotlight
Spotlight's now in the Spotlight. Apple's search feature in OS X has been taken out of the realm of just file search; now it can find applications (making it a potential replacement for Apple's Launchpad app) and content on the Internet (putting it toe to toe with the popular third-party tool Alfred). It will view search results from Wikipedia, the App Store, iTunes Store, iBooks Store and more.
iCloud Drive
Apple's integration with cloud-based storage and services continues with 10.10 and iOS 8 thanks to iCloud, which lets you store any kind of file online. It also works with a Windows PC.
OS X 10.10 bottom line
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The Mac's operating system is beyond mature, but there's huge room for improvement. Apple's moving iOS 8 and OS X 10.10 together, forward, for a new era of interdevice and intersystem communication. Stay with us as we provide you with more details.