macOS Catalina, which came out on Monday, is the newest version of the operating system that runs on the Mac. Catalina brings some significant changes, including the removal of the iTunes app, a new Sidecar feature, an updated Find My app, and more.
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Many of the apps on the Mac have been overhauled with new features. Reminders, for example, has a whole new look and an easier to use interface, while Photos has a new view that organizes everything by day, month, or year. Notes lets you share folders for the first time, and there's a Picture by Picture option in Safari.
For a full rundown on all of the features that you'll find in macOS Catalina, take a look at our macOS Catalina roundup.
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The version of Mac OS X 10.6.0 raised the optimization to Intel-based processors further, the new operating system is no longer available for PowerPC Macintosh or pure 32-bit intel processors. In return the user receives a pure 64-bit operating system optimized for performance on multiple processors. The Apple TV app for Mac is the new home for all your favorite movies, shows, premium channels, and — coming soon — Apple TV+. Watch everything directly in the app or enjoy it offline, and discover the best of what’s on in the Watch Now tab. 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 Catalina: MacBook (Early 2015 or newer).
In our latest YouTube video and in the article below, we're going to go over some must-know macOS Catalina features that will be useful to those who have just updated and want to familiarize themselves with the changes. - No More iTunes - Apple removed iTunes in macOS Catalina, splitting it up into three new apps: Music, TV, and Podcasts. These three apps offer all of the functionality that was previously in iTunes, so you can still get to your music library, access TV shows and movies you purchased, and listen to your favorite podcasts. You can still make iTunes Store purchases, too.
- Finder Syncing - Since there's no iTunes app, you won't use iTunes to manage your devices that are plugged in. Instead, when you plug in an iPhone or iPad to your Mac, you'll see it in the left side of the Finder window where you can get to all the same controls you had in iTunes.
- Apple Watch Password Authentication - You've long been able to unlock a Mac with an Apple Watch, but in macOS Catalina, the Apple Watch can also be used to authenticate passwords or approve app installations when you double tap on the Side button. This is especially handy on Macs that don't have Touch ID. Get to the settings by opening up System Preferences and choosing the Security and Privacy section.
- Sidecar - Sidecar is a new feature in macOS Catalina that lets you use your iPad as a secondary display. The easiest way to activate Sidecar is to click on the AirPlay icon on the Mac. If you have a Sidecar-compatible iPad, it will show up in the list of available devices. Sidecar is limited to newer Macs and on the iPad, it only works with iPads that support the Apple Pencil. Make sure to check out our Sidecar guide for more info.
- iPad Apps for Mac - Apple in macOS Catalina introduced new 'Catalyst' developer tools that are designed to make it easier for developers to port their iPad apps to the Mac, which means you can expect some of your favorite iOS apps to be available on the Mac. Catalyst apps are still rolling out, but some high-profile options are already available like GoodNotes 5, Carrot Weather, HabitMinder, and more.
- Find My - There's a new Find My app on the Mac, which brings a dedicated app for finding friends and devices for the first time. Find My combines Find My Mac and Find My Friends, so it's the one-stop shop for whatever you're looking for. Find My even lets you find your Mac when it's closed and has no WiFi connection by leveraging a Bluetooth connection to other iPhones and Apple devices that are nearby. The new Find My capabilities give you a better chance of finding a lost or stolen device.
- No More 32-Bit Apps - macOS Catalina does not support 32-bit apps, which means some older apps might not work after upgrading. This mostly only applies to apps that haven't been updated in a long time, but it's still something that may take users by surprise. For more info, make sure to check out our 32-bit Mac app guide.
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Many of the apps on the Mac have been overhauled with new features. Reminders, for example, has a whole new look and an easier to use interface, while Photos has a new view that organizes everything by day, month, or year. Notes lets you share folders for the first time, and there's a Picture by Picture option in Safari.
For a full rundown on all of the features that you'll find in macOS Catalina, take a look at our macOS Catalina roundup.
Related Roundup: macOS Catalina
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Is your Mac up to date with the latest version of the Mac operating system (macOS or OS X)? Is it using the version required by some product or feature? Which versions are earlier (older) or later (newer, more recent) than the version currently installed? Bootcamp for mac air. To find out, learn which version is installed now.
If your macOS isn't up to date, you may be able to update to a later version.
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Which macOS version is installed?
From the Apple menu in the corner of your screen, choose About This Mac. You'll see the macOS name, such as macOS Mojave, followed by its version number. If some product or feature requires you to know the build number as well, click the version number to see it.
This example shows macOS Catalina version 10.15 build 19A583.
Which macOS version is the latest?
These are all Mac operating systems, starting with the most recent. When a major new macOS is released, it gets a new name, such as macOS Catalina. And as updates that change the macOS version number become available, this article is updated to show the latest version of that macOS.
If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos.
macOS | Latest version |
---|---|
macOS Catalina | 10.15.1 |
macOS Mojave | 10.14.6 |
macOS High Sierra | 10.13.6 |
macOS Sierra | 10.12.6 |
OS X El Capitan | 10.11.6 |
OS X Yosemite | 10.10.5 |
OS X Mavericks | 10.9.5 |
OS X Mountain Lion | 10.8.5 |
OS X Lion | 10.7.5 |
Mac OS X Snow Leopard | 10.6.8 |
Mac OS X Leopard | 10.5.8 |
Mac OS X Tiger | 10.4.11 |
Mac OS X Panther | 10.3.9 |
Mac OS X Jaguar | 10.2.8 |
Mac OS X Puma | 10.1.5 |
Mac OS X Cheetah | 10.0.4 |
Learn more
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- Always use the macOS that came with your Mac, or a compatible newer version.
- Learn how to reinstall macOS from macOS Recovery.