Apple releases first Developer Preview of Mac OS X Lion

Apple have announced the first developer preview of Mac OS X Lion on their website. They have also launched a preview site outlining the features users can expect from Lion when it becomes available in the summer.

Apple today released a developer preview of Mac OS X Lion, which takes some of the best ideas from iPad and brings them back to the Mac for the eighth major release of the world's most advanced operating system. Lion features Mission Control, an innovative new view of everything running on your Mac; Launchpad, a new home for all your Mac apps; full screen apps that use the entire Mac display; and new Multi-Touch gestures. Lion also includes the Mac App Store, the best place to discover, install and automatically update Mac apps. The Lion preview is available to Mac Developer Program members through the Mac App Store today, and the final version of Lion will ship to customers this summer.

Among the new features outlined on MacRumors include:

  • Mail, a new version of Mail, with an elegant, widescreen layout inspired by the iPad; Conversations, which automatically groups related messages into one easy to read timeline; more powerful search; and support for Microsoft Exchange 2010;
  • Versions, which automatically saves successive versions of your document as you create it, and gives you an easy way to browse, edit and even revert to previous versions;
  • AirDrop, a remarkably simple way to copy files wirelessly from one Mac to another with no setup;
  • Resume, which conveniently brings your apps back exactly how you left them when you restart your Mac or quit and relaunch an app;
  • Auto Save, which automatically saves your documents as you work;
  • the all new FileVault, that provides high performance full disk encryption for local and external drives, and the ability to wipe data from your Mac instantaneously; and
  • Mac OS X Lion Server, which makes setting up a server easier than ever and adds support for managing Mac OS X Lion, iPhone, iPad and iPod touch devices.

Apple are aiming to bring some innovations found in the iPhone and iPad, and bring them back to the Mac. One of of the new features is multi-touch, so Apple is bringing multi-touch to Mac OS X Lion. Apple has tried long to bring multi-touch to the Mac through trackpads and mouse.

The App Store will also be making an appearance on Mac OS X Lion. With downloadable apps, like Angry birds, you'll be able to play games, browse apps, read books and many more. The Mac App Store will be separate from the iPhone, iPod and iPad store, but will be used just like it.

Lion will also include home screens, just like the iPhone and iPad. Having a few different desktops with icons across your home screen, so you can access your apps. The App Store will feature top paid, top free and many other categories like the mobile App Store has.

Lion will bring full screen apps to the desktop, just like in iPhoto, so you can focus on what you're reading or playing. With full screen mode, you want to find your apps and screens easier, well Lion is bringing a new feature called "Mission Control", where you can view all your opened screens with a single click, making it easier to open or browse through screens.

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Autosave is amazing! you open a document, type something, close your application, reopen it and its all there, didn't even ask to save it!

Versions works beautifully, its like a time machine for every single document you create! Hopefully this will be an OS X feature that developers will jump in and support immediately. no more losing data.

What feels weird to get used to is the scrolling! its work like the ipad, so smooth and scroll bars appear only when you scroll! however it feels weird to move you finder up to get it to scroll down. Its something to get used to i guess

Unification of OSX and iOS has just started. Hope AirGrop immediately comes to the iPhone and iPad with iOS 5. Cuz right now it's really troublesome to transfer a simple photo to your desktop; it needs cable connection or fire up a ftp client/samba client over Wi-Fi.

And no, Dropbox or similar is not the same with AirDrop.

That new version of File Vault sounds like a cyber-criminal's wet dream. As I understand it, even with the current version, the FBI has to call in a special team from Canada to recover data from any Macs that they need to access. I can only imagine the trouble they will have with this!

roadwarrior said,
That new version of File Vault sounds like a cyber-criminal's wet dream. As I understand it, even with the current version, the FBI has to call in a special team from Canada to recover data from any Macs that they need to access. I can only imagine the trouble they will have with this!

Seriously? That's pretty humourous.

This sounds like a service pack if I have ever heard of one... A few new features to OS X but nothing new industry wide. OSX has become boring and not intuitive - at least not to my likes. I find I can get more done, easily and quickly now that Windows 7 was released.

Yet another ignorant poster who doesn't understand that service packs don't add new features. And some of these features that they are talking about are fairly unique in the OS market.

norseman said,
This sounds like a service pack if I have ever heard of one... A few new features to OS X but nothing new industry wide. OSX has become boring and not intuitive - at least not to my likes. I find I can get more done, easily and quickly now that Windows 7 was released.

Yep, I believe most of these are just Paid Service Packs.. It's the same OS just with different codes and a few new features.. And this one just trying to look like a non-touch iPad.

TechDudeGeorge said,

Yep, I believe most of these are just Paid Service Packs.. It's the same OS just with different codes and a few new features.. And this one just trying to look like a non-touch iPad.

Uhhh no, "service packs" are 10.0.x updates

TechDudeGeorge said,

Yep, I believe most of these are just Paid Service Packs.. It's the same OS just with different codes and a few new features.. And this one just trying to look like a non-touch iPad.

Yes, because 10.0.0 is basically the same thing as 10.7 or whatever Lion is... just bug fixes and little features. /s

TechDudeGeorge said,
Yep, I believe most of these are just Paid Service Packs.. It's the same OS just with different codes and a few new features..

Tell me, how is that any different from a new Windows version?

TechDudeGeorge said,
Yep, I believe most of these are just Paid Service Packs.. It's the same OS just with different codes and a few new features..

Tell me, how is that any different from a new Windows version?

norseman said,
This sounds like a service pack if I have ever heard of one... A few new features to OS X but nothing new industry wide. OSX has become boring and not intuitive - at least not to my likes. I find I can get more done, easily and quickly now that Windows 7 was released.

If you don't know what you are talking about, then just don't talk.

.Neo said,

Tell me, how is that any different from a new Windows version?

Sometimes it's better to just not argue with these people, you know.

Bleh iOS... what's the point of the dock if the desktop is like that. I guess if you have an "App" open, but at least have the dock disappear or something when the desktop is up. How redundant.

sanriver12 said,
time to pay for your sp sheeple

I know, I know. Microsoft have just recently returned to reasonable version numbering of their software in Windows 7. There was a lot of confusion between 95, 98, NT, 2000, XP, and Vista but they are back on track now.

So I see how Apple calling their OS "OS X" and the major versions of OS X being 10.1, 10.2 etc, with the "service pack" level being 10.1.x can confuse you. You have had a lot of version number abuse from MS.

Oh, and in Apple "service packs" it isn't atypical that we see new features (like the App Store that was added to Snow Leopard). MS doesn't seem to bother with any significant changes in their Service Packs...just a collection of their ongoing weekly security patches (which are always a joy to install for the old weekly system reboot).

Dr Pepper said,
Obvious troll is obvious

This.
The guy obviously has no idea of what he's talking about. Stay with Windows, then.

ooh revolutionary indeed


Versions, which automatically saves successive versions of your document as you create it, and gives you an easy way to browse, edit and even revert to previous versions;

Welcome to 2006 I guess.

dhan said,
ooh revolutionary indeed

Welcome to 2006 I guess.

So far the only program I've ever seen with version control is Adobe thanks to Version Cue (which isn't even around anymore). If Apple is integrating this at a system-wide level, then yeah it is kinda revolutionary.

Kirkburn said,
Tanshin, Windows has Previous Versions.

How does one go about using that? I've never seen it... ever. And it's a shame too because there's been times where I could have used it.

Kirkburn said,
Tanshin, Windows has Previous Versions.

Previous Versions is more akin to Time Machine. Versions, as I understand it, tracks your documents as you are creating them (even before you save changes), sort of like how an image editing program such as Paint.net has multiple levels of undo on images you are editing. But this is system-wide, so ALL apps get the benefit of the technology. It would seem to work in conjunction with Auto Save.

roadwarrior said,

Previous Versions is more akin to Time Machine. Versions, as I understand it, tracks your documents as you are creating them (even before you save changes), sort of like how an image editing program such as Paint.net has multiple levels of undo on images you are editing. But this is system-wide, so ALL apps get the benefit of the technology. It would seem to work in conjunction with Auto Save.

Nope, Previous versions actually creates incremental backups i.e. versioning.

Previous Versions: right click on a file, see the tab there. It relies on restore points and system backups, but the concept is similar. i.e. Versions is not ground breaking. Good, though

Kirkburn said,
Previous Versions: right click on a file, see the tab there. It relies on restore points and system backups, but the concept is similar. i.e. Versions is not ground breaking. Good, though

Oh, now that you say that I remember seeing it. I'll have to play with it, but I don't know how far I'll get because I don't use Windows for backing up (I use Ghost to create system images instead) and I have no idea how often restore points are made

They should rework language translations model, similar to linux. Even if Apple doesnt give a damn to create OS X in my native language, at least there should be some place for community to do it... Current model sucks. It causes unstability, crashes and system update conficts... I would not buy a iMac until OS X is translated.

Looking the overlay scroll bars... scroll bars on a whole aren't needed anymore.. every mouse has a wheel or scroll functionality and most notebook pads have a scroll feature. You never see anyone moving to the side of the screen and grabbing the bar. At the very least you will use the arrow keys on keyboard

Hopefully windows will remove them too and us web developers can get those 15 pixels back for 1024x768 displays

Can't get it because we're an iOS developer, not Mac develop

Although considering how close they are getting they should allow it!

I'm sorry I love apple but I really don't like the furthered influence of iOS on OS X..
Also, I just don't see a point to upgrade based on features currently presented.
- won't use new mail, LaunchPad, or Mission Control
- App Store have now, don't use.
- Autosave, Versions, Resume are all incredibly basic and wouldn't be put to use often (by me)
- Airdrop; however, is pretty cool.

Alladaskill17 said,

- Autosave, Versions, Resume are all incredibly basic and wouldn't be put to use often.

They're targeting businesses and student projects with these options.

I'm always making 200 versions of my projects (literally, 200). I'm actually bowing down to Versions.

Co-ords said,
Love it, can't wait to see it hands on! Hope it's the same great price when it comes out as SL was...

With the integration of the Server version into the client one, all these new end-user features etc. I doubt it will go on sale for €29 again. However, I don't think Apple will go back to €129 either. Maybe around €79 ~ €99?

roadwarrior said,
Cool that they are integrating the server version into the main desktop version.

Really nice!

roadwarrior said,
Cool that they are integrating the server version into the main desktop version.

Yes, one OS X to rule them all, haha.

roadwarrior said,
Cool that they are integrating the server version into the main desktop version.

Definitely. I've always wanted to play with the server features however there's no way I could afford it. I had a mini-nerdgasm when I saw that.

I'm especially excited for Resume. My mom is always scared to install updates in case she has to restart (she doesn't realize that it tells you when you do or don't have to restart... and she also doesn't seem to like the idea of running more than one thing at a time...) so that should be a very welcome part of the OS.

I have to say, I'm very excited for Lion. I wasn't before (there wasn't much to catch my eye) but now I am.

roadwarrior said,
Cool that they are integrating the server version into the main desktop version.

So I will have to uninstall MAMP. Ahhh. I'm way too lazy for that. Stupid Apple to include freely a built-in server edition in my future home license of OS X.

No seriously, I didn't get that part. Thanks for clearing that up, this is awesome for us, (hobbyist) web developers!

So far all of the things they brought over from iOS to Mac OS X make sense. The multi-touch support looks amazing!

James Riske said,

A beta of an alpha, I'm sure stability will be right there /s

What Alpha are you talking about?

Rudy said,
+1

wtf are you talking about

It was sarcasm that's why the /s after the comment, I didn't think it would draw out some butthurt isheep but then again considering the isheep mentality I should have known.

James Riske said,

It was sarcasm that's why the /s after the comment, I didn't think it would draw out some butthurt isheep but then again considering the isheep mentality I should have known.

I have an iMac, a Mac mini, an iPhone and an iPad, and two hackintoshes, so ... may be not all "iSheeps" hates the hackintosh scene ...

MrPink said,
Leak already! I so wanna hackintosh this!

So The Bottom Line Is: If You Want To Try This Out: You Will Have 2 Pay The $99 U.S.A. Dollars, Sign The NDA, And Then Stop Talking Here About Pre-Release Apple Software!

kevpan815 said,

A Leak Won't Do You Any Good As The Download Is Tied To The Member's Apple ID!

If You Attempt 2 Install It On A Separate Mac: It Will Ask You 4 Your Apple ID And Password!

6205 said,
What about new theme? That old "blue gel" Aqua is IMO obsolete..

I really don't see much of the original Aqua left anymore. It has been slowly going away since 10.3 or so.

roadwarrior said,

I really don't see much of the original Aqua left anymore. It has been slowly going away since 10.3 or so.

It's still there and i hate it All those blue progress bars, checkboxes, radio buttons, horizontal and vertical sliders. They should finally replace them with something new, fresh.

6205 said,

It's still there and i hate it All those blue progress bars, checkboxes, radio buttons, horizontal and vertical sliders. They should finally replace them with something new, fresh.


Agreed.

6205 said,

It's still there and i hate it All those blue progress bars, checkboxes, radio buttons, horizontal and vertical sliders. They should finally replace them with something new, fresh.


The aqua-styled sliders are going away.
http://developer.apple.com/tec...ies/mac/whats-new.html#aqua

With so little of Aqua left, I agree with you though... They should just add some minor finishing touches, and it'd be gone in Lion. There's really not much left now. Buttons, check boxes, radio buttons, progress bars.

6205 said,

It's still there and i hate it All those blue progress bars, checkboxes, radio buttons, horizontal and vertical sliders. They should finally replace them with something new, fresh.


Then switch to the Graphite Theme.