The 10 Best New Features in OS X Mavericks

The latest version of the Mac OS is no transformative update, but it includes several key changes that most users will like.

OS X Mavericks
The key changes lurking under the familiar surface

The first version of the Mac OS not to be named after a cat, OS X 10.9 Mavericks is no game-changer. If you use OS X Mountain Lion, you won't notice many of the changes, though you'll come to appreciate the better power management on your MacBook. But some changes are truly useful, even if not immediately obvious. I've picked the most compelling ones. (For the full details on what's new, check out my "OS X Mavericks: The 'Just What You Need' Book.")

OS X Mavericks tabbed Finder windows
Tabbed Finder windows

It seems obvious in retrospect, letting Finder windows have tabbed panes like a browser does, to minimize the profusion of windows on your Desktop. OS X Mavericks now lets you add tabs to Finder windows (you can also create new windows) by pressing Cmd-T.

Tip: To move or copy items across tabbed panes, drag the file or folder icon from the current tab on to another pane's tab.

OS X Mavericks file tags
File tags

OS X has long let you assign color tags to files and folders as a visual cue for the file contents, such as for a specific project. OS X Mavericks extends that to include user-defined tags that you can add to files and folders in the Finder, Get Info window, and( for files) when you save them. You can then display these tags in the Finder's Sidebar or via OS X's search facility to quickly display files tagged using whatever labels you want. If you're a person who organizes your work, you now have a new tool for doing so.

OS X Mavericks AirPlay display
AirPlay display

The Apple TV makes it easy to see on your TV the media content that is on your Mac, such as to stream videos or photos. In OS X Mountain Lion, you could also mirror your Desktop to the Apple TV, such as for presentations. OS X Mavericks takes that to the next step, treating the Apple TV as just another monitor, so you can extend your desktop onto an Apple TV-connected TV or projector.

OS X Mavericks iCloud Keychain
iCloud Keychain

The new iCloud Keychain does two things you'll appreciate. One, it can now save credit card information entered on websites, so you don't have to keep re-entering that data. (Relax: You still need to enter the CVV code, as iCloud Keychain intentionally does not retain that verification code.)

The other is that your saved passwords and credit cards are synced across your Macs and iOS devices if they're signed into the same iCloud account and have iCloud Keychain enabled. Apple has added extra verification to protect iCloud Keychain data, so another user would need more than your iCloud sign-in information to enable it.

OS X Mavericks in-notification replies
In-notification replies

The notifications banners are a handy way to see when you have new messages without stopping what you are doing. But if you want to act on the notification, they get a bit onerous, as you have to launch the related app from the banner. In OS X Mavericks, you can respond to a notification within the banner. Hover the pointer over the banner and click the Reply button (or whatever it's called for that specific type of notification) to be able to respond immediately.

If the reply requires additional resources, the appropriate element will appear; for example, when replying to an email, you get a standard message window -- but not the full Mail application.

OS X Mavericks Safari bookmarks sidebar
Safari bookmarks sidebar

I've long fumed about Safari (and Google Chrome) not providing a sidebar for bookmarks. Neither having to go to a bookmarks page that obscures the current website nor having to use an easily crowded bookmarks bar meet Apple's usability standards. So I've standardized on Firefox, because all my many personal and work bookmarks are easily available in its sidebar. But as Firefox has become less stable over time, I've wanted to ditch it, but going sidebar-less wasn't an option.

Safari 7, which debuts in OS X Mavericks, has a proper sidebar for bookmarks. Now I can dump Firefox!

OS X Mavericks shared browser links
Shared browser links

This is my favorite new feature in OS X Mavericks. The Safari browser's new Sidebar has the Shared Links option. It lists all URLs shared to you via your social networks. (You must first connect OS X to these social networks via the Internet Accounts system preference.) Shared Links provides a handy list of all the Web pages that your friends and colleagues have been discussing or recommending.

Even better, the original post appears above the Web page when you open it, and you can even repost or share it with more people from within Safari.

OS X Mavericks driving directions for iOS
Driving directions for iOS

OS X Mavericks adopts iOS's Maps app. That by itself is not a huge deal, even though it's nice to have an alternative to Google's Web-based maps. But what's cool is the ability to get driving directions and send them to your iPhone or other iOS 7-based device. They show up in the iOS Maps app, ready for you to follow while driving or walking, and they remain in your bookmarked directions for access later if needed.

OS X Mavericks map integration in Calendar
Map integration in Calendar

OS X Mavericks also integrates Maps with Calendar. If an appointment has a recognized address, Calendar shows a preview map of the location; double-click it to open the location in the Map application.

Calendar also calculates the drive time to such destinations based on your current location and historic traffic patterns for that time of day, adding that drive time to your calendar as well. (Actual conditions will update the calculation as the meeting time approaches.) It's not perfect, but it can help you ensure sufficient time between meetings.

OS X Mavericks automatic app updates
Automatic app updates

People don't like being asked to install app updates. Sen. John McCain even used a tax hearing to complain about app updates to Apple CEO Tim Cook. So OS X Mavericks updates apps -- meaning those purchased in the Mac App Store -- for you, if you tell it to via the App Store system preference. (Security updates also auto-install by default, a feature introduced in OS X Mountain Lion.)

You can also have Mavericks auto-install App Store apps purchased on other Macs linked to the same Apple ID, just like how iOS works.