Apple releases developer preview of OS X Mavericks with more than 200 new features

Apple today released a developer preview of OS X Mavericks, the 10th major release of the world’s most advanced operating system. With more than 200 new features, OS X Mavericks brings Maps and iBooks® to the Mac, introduces Finder Tags and Tabs, enhances multi-display support for power users, delivers new core technologies for breakthrough power efficiency and performance, and includes an all new version of Safari. The preview release of OS X Mavericks is available to Mac Developer Program members starting today. Mac users will be able to download Mavericks from the Mac App Store this fall.

“The Mac has consistently outpaced the PC industry and OS X continues to be the most innovative and easy to use operating system in the world,” said Craig Federighi, Apple’s senior vice president of Software Engineering, in the press release. “OS X Mavericks is our best version yet and features new Maps and iBooks apps, Finder Tags and Tabs, enhanced multi-display support, performance and energy saving features, and an all new Safari.”

Maps brings advanced mapping technologies from iOS to the Mac, including crisp vector graphics, stunning 3D view and interactive Flyover. With Maps you can plan a trip from your Mac, then send it to your iPhone® for voice navigation on the road. Maps integration throughout Mavericks gives users helpful maps from within Mail, Contacts and Calendar, and developers can integrate the same powerful mapping features into their apps through the Map Kit API. With iBooks you have instant access to your existing iBooks library, as well as the more than 1.8 million titles in the iBooks Store, from textbooks and classics to the latest best sellers. iBooks also works seamlessly across your devices, so you can read a book on your Mac, make notes or highlights, and then pick up exactly where you left off on your iPad.

Apple's OS X Mavericks slated for fall 2013 public release
Apple’s OS X Mavericks slated for fall 2013 public release

OS X Mavericks introduces new power user features for the ultimate Mac experience. Tags are a powerful new way to organize and find your files anywhere on your Mac or in iCloud. You can easily tag any file in the Finder, in iCloud, or when saving a new document. Tags appear in the Finder Sidebar to enable you to view files by project or category. Finder Tabs reduce the clutter on your desktop by consolidating multiple Finder windows into one window with multiple tabs. You can customize the view for each tab, move files between tabs, and even run the Finder with multiple tabs open in full-screen. Mavericks also makes using multiple displays even easier and more powerful. The menu bar and dock are available on any display, and users can now easily run windowed or full-screen apps on whichever display they choose, with no configuration required. With Mavericks you can also use your HDTV as a second display using Apple TV and AirPlay.

New core technologies in OS X Mavericks improve the energy efficiency and responsiveness of your Mac. Timer Coalescing intelligently groups together low-level operations so that the CPU can spend more time in a low-power state, saving energy without affecting performance or responsiveness. App Nap reduces the power consumed by apps that you’re not using. Compressed Memory technology keeps your Mac fast and responsive. When your system’s memory begins to fill up, Compressed Memory automatically compresses inactive data. When these items are needed again, Mavericks instantly uncompresses them.

The new version of Safari delivers blazing performance, innovative features and breakthrough technologies. Safari outperforms other browsers in energy efficiency, memory efficiency and JavaScript performance. Safari’s new process-per-tab architecture makes the browser more responsive, stable and secure. Safari also introduces innovations like Shared Links, which make it easy to discover, read and share interesting new content from Twitter and LinkedIn, all in one place.

Additional features in OS X Mavericks include:

• iCloud Keychain, which safely stores your website login information, credit card numbers and Wi-Fi passwords, and pushes them to all of your devices so you don’t need to remember them. • Information is always protected with AES-256 encryption when it’s stored on your Mac and when it’s pushed to your devices;
• an updated Calendar, which adds integration with Maps, continuous scrolling so you can zip through weeks or months, and a new Inspector to simplify event creation and editing;
• interactive Notifications, allowing you to reply to a message, respond to a FaceTime® call or even delete an email without leaving the app you’re using. Websites can now use notifications to keep you up to date on the latest news, scores and other information. While You Were Away Notifications make sure you see what happened while your Mac was asleep; and
• Xcode 5, with powerful, intuitive new tools for developers that measure every aspect of app performance and energy use, as well as app testing.

Source: Apple Inc.


    1. “Mavericks” is so weak. Even people slightly far than California itself barely have idea what it is. The nickname should have universal appeal.

      This is minor thing, but one of those which Steven Jobs would definitely not allow; he was not weak-sauce like that.

        1. Steven Jobs never offered ideas to be implemented outright in face value. He welcomed all possible ideas, including ridiculous ones, because there could be something in it that could be turned into something great.

          So Jobs having silly ideas is totally different from releasing something under silly ideas. Of course, he had few such mistakes (like puck-mouse, for example; it was not ergonomic), but by far ideas were well-filtered and much better than what all of the industry thought about an issue, combined.

          So if under Jobs new nickname line would be about places, it would be rather like OS X Paris, OS X Tokyo, OS X Moscow, OS X Beijing, OS X Rio De Janeiro, et cetera — not something like “Mavericks” which makes no impression on anyone beyond vicinity of this city whatsoever.

      1. Gotta say it doesn’t exactly slip of the tongue does it and I for one am baffled as to why there is an s at the end, seems a bit provincial and already I am seeing the s left off so others are clearly confused too. But the rest looks great.

        1. It’s because it’s the name of a surfing beach in central California, near Half-Moon Bay.

          One that occasionally has *really* high surfeable waves driven by winter storms. 25′ is common, some have been measured as high as 80′ (probably a good time to watch from the shore.)

      2. I love the name Mavericks. Suggestions for future names.

        – Eureka
        – California Condor
        – Golden Gate
        – Death Valley
        – Watts

        I would love to hear other comical and serious suggestions.

        1. For those blowing their tops at Apple’s new stuff: Lassen Peak (1915 eruption)

          For those badly shaken by it: Loma Prieta (1989 earthquake)

          For those feeling betrayed by it: Shafter (inc. 1938)

          For those depressed by it: Desolation Wilderness

          For the design experts coming out of the woodwork: Hearst Castle (Julia Morgan)

          For Monty Python nerds: San Juan Capistrano

          For trolls: La Brea (tar pits)

    1. Not sure about that.. loved 10.6 too.. but my new work imac running 10.8xx plays much much better in my windows world.. Mission control on multi-monitors is freaking sweet too….

    2. Hmm… nah. Lion was definitely worse than Snow Leopard, but on Mountain Lion, they’ve fixed all the Lion problem (well, at least the ones that were affecting me) and added some kickass new features.


  1. Looking forward to compressed memory. Im having to get 16 gigs of ram cause I can’t even run premiere and chrome side by side. Fffffffffffffuuuuuuuuuuuuuuuuuudge.

  2. That will be an awesome release for pro users like us. I am looking forwards a lot to the release date. To me this was the most impressive part today because I make my living with my various Macs, and the new version will improve my work a lot. (Sure the Mac Pro looks great, but it’s not for me as I need so much internal HD space at affordable costs.)

    1. seriously? you must be new here. i remember a time when OS X was $129, and you want to complain about $19 and $29 updates?

      please. give your computer to somebody who isn’t gonna waste it.

  3. I expected Apple stock price to drop after the keynote. That’s the way it works. All the know-it-all’s will throw in their comments about how this or that fails to meet their worthy expectations and push the stock down. After a while the general users will start to comment and the perception will change for the positive. I think Apple really pulled out the stops today and addressed most of the innovation complaints of the past six months. I don’t think the new Mac Pro will go over well. I liked it, but it’s very reminiscent of the Cube, one of Steve’s biggest missteps. It was very cool, but impractical for most users, not to mention very expensive. The cylindrical Mac Pro had better offer some practical add-ons (expansion boxes) or it will be skipped over by the mainstream professionals. Over all, I loved today’s keynote. Apple is still clearly firing on all cylinders.

  4. I saw a lot of the “old” Apple here and liked it very much. The only thing I don’t like is the name “Mavericks” but that’s as unimportant as you can possibly get. Stunning updates to IOS, OS X, and a Mac Pro that I must have.

    1. You’d like the name if you live in California and have ever surfed. And get ready, because the next nine versions will all be named for California locations. I like that. I like it a lot. That should take us through 2023 at least.

        1. Oh so its a place name, so can we rename it Bognor Regis on this side of the pond or if it has to be surf related it could be Newquay perhaps. Or better still Hayling Island if they want to move it up the scale to Wind Surfing in the next iteration. After all it was invented there.

        1. OSX Whale

          I can see the jokes now…

          I would have liked the ‘s’ removed from Mavericks, then it could be a theme of adjectives.

          We certainly have plenty of those (as well as colorful ones)

  5. I like the name. It’s a bad ass wave, and the spirit of the surfer of that kind of wave symbolizes Apple too, the renegades, the ones who are willing to risk it. (hence, the black cylinder of doom). This was very re-assuring that the Apple spirit is alive and well.

  6. I watched the keynote. One word – WOW!

    I am amazed at how beautiful iOS 7, OS X 10.9 Mavericks, and the new Mac Pro all are. That Mac Pro looks absolutely amazing. Thunderbolt 2 4K monitor to come?

  7. not impressed.

    – Maps should be an application, not a part of the OS. Moreover, Apple had better get if right this time. Many users still have a bad taste in their mouths from it.
    – tags and tabs are small potatoes.
    – all the supposed performance tweaks are merely an attempt to cover up the bloat that iCloud and consumer fluff have brought to the OS.
    – the Keychain appears to have been downgraded. Why trust Apple with your data any more than any other corporation? Apple is now an advertisement agency too — they’re spying to trigger iAds for you just like every other computing company on the planet.
    – multiple displays? Hasn’t that been supported for almost a decade WITHOUT the need for AppleTV? What’s new about rearranging the control panel?
    – Sorry, but the Mavericks name sucks. No disrespect to surfers, but don’t use a plural word to refer to a singular item. We can only hope that Apple isn’t going to code-name the next 10 desktop OSes by waves.

    10.6 remains the high point for Pro users…

    1. This reads like you were desperately looking for things to complain about.

      – Of course Maps is an application? What, you think they’ve baked it into the kernel??

      – You think tags is small potatoes because you can’t see the big picture. Apple is trying to move away from the hierarchical file system, and this is where it begins.

      – the performance don’t switch off just because you don’t use iCloud so the benefits are for everyone.

      – so Apple will sell your keychain to third parties? The ad revenue from the iRadio service goes to the record labels. Apple itself doesn’t rely (or need to rely) on ad revenue.

      – the multiple display stuff fixes an annoying problem with full-screen apps an spaces that have been a HUGE problem for professional users since Lion’s release. This fixes it, but is long overdue.

      – I don’t like name Mavericks, but I’m not going to have kittens over it.

      1. @ Muppet: I am a Mac user, but I also believe that constructive criticism improves the breed. Apple is nowhere near as perfect as some of the people here seem to think.

        – I mean to say Maps should be a download from the app store, not pre-loaded. Same for Notifications, etc. Apple already dumped the RSS reader function of Safari to 3rd party application developers, but instead of keeping the Mac OS clean, more “social apps” and fluff keep getting added by default. That is what Microsoft does, why is Apple acting like Microsoft ?!?!? Ive spent his entire portion of the WWDC keynote telling everyone how Apple likes to keep things simple and clear, but then turns around and bloats all its apps just as much as any other company playing the features race.
        – the apple file system has ALWAYS supported extensive metadata which the intelligent user could employ for very effective file searches. All Mavericks does is switch to the Windows file system and then add a user input tool so that one can add tag searches to the sidebar. yippee. I guess no one uses Applescript anymore?
        – We don’t use iCloud because it sucks, it doesn’t work as advertised, it’s not cross-platform, file types are limited, there is no guarantee of security, and there is no guarantee against file loss. The negatives of paying someone else to store your stuff almost always outweighs the positives.
        – with the NSA snooping everybody, nobody knows what legal right they have to be notified when some government contractor gets the hankering of snooping around your accounts. Why would you entrust your passwords to ANYONE else, especially a corporation that has pages upon pages of fine print limiting its own liability in every user agreement. Apple is no different in this regard than any other.
        – ads are a waste of time. subscriptions are abhorrent. We will continue to make and listen to high fidelity music ourselves, no thank you to Apple’s attempt at pushing the two most user-unfriendly business models on the planet in the same product.
        – I never saw the need for the dock on both displays, but everyone’s needs are different.

        – Nobody really cares, least of all me, but Apple’s naming is getting to be as convoluted as Ford. The poor marketing dorks in Dearborn named various iterations of the same chassis with equine & reptilian names, using Italian shorthand for a car type that is totally different than Ford’s design goals, and also after one of the early developers. Nothing about the Ford Mustang Cobra GT [Grand Turismo, i.e., long-distance touring] Shelby makes any sense at all.

    2. It’s not “Mavericks”, it’s “Maverick’s”. Not plural, possessive.

      Meanwhile, since when did they say that multiple monitors required AppleTV? It’s just newly supported as a peer among other displays supported.

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