Mac OS X Lion Developer Preview 2 Available to Download

Mar 30, 2011 - 11 Comments


Apple has released Mac OS X 10.7 Lion Developer Preview 2. The new build comes as 11A419 and presumably contains mostly bug fixes and feature refinements to an otherwise stable developer preview.

Download Mac OS X Lion Preview 2
Registered developers can access the download either through Software Update in Mac OS X Lion, through the Mac App Store, or as a standalone download through the Mac developer center.

If you skipped the first Developer Preview release and you want to try Developer Preview 2, you can dual boot and install Lion alongside 10.6 without formatting your drive. Note that you’ll want the standalone download if you choose this option.

Public Release Coming Soon
Apple announced last fall that Mac OS X Lion is scheduled for a summer release date, with WWDC 2011 looking as the most likely time for a launch. Recent rumors suggest it could even be sooner.


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Posted by: Matt Chan in Mac OS, News


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  1. DanielX says:

    HI! I installed DP2 and boot crashes. I cann’t install LION again. NO disktool. no nothing. some ideas?!?

  2. […] Mac OS X Lion Developer Preview 2 was released to developers on March 30, I found the update to be less stable and more resource hungry than Developer Preview 1, so I haven’t used it much. I’m hoping this update resolves some of the memory leaks that appeared in Developer Preview 2, although not all machines seem to be affected. […]

  3. […] Mac OS X Lion Dev Preview 2 has readded the Graphite appearance option, which was initially greyed out and set on “Blue” by default. The first Developer Preview disabled the ability to adjust the window appearance colors, which led some to believe an entirely new UI would appear at the Lion public debut. […]

  4. B0bby says:

    I have build 11A390 can’t i just do an update ??? to preview 2 ??

  5. […] Mac OS X Lion Developer Preview 2 has a new version of the default Mt Fuji wallpaper. The new picture shows some clouds in the foreground and the mountain itself has a bit less snow on it, creating less of a contrast. As usual for Apple’s default desktops, it’s absolutely beautiful, and it makes a great desktop background. […]

  6. Funwidmasti says:

    This preview is very much stable then the previous one..!!

  7. […] to get an invite, you just login, sign your confidentiality agreement, and then you can go about downloading Mac OS X Lion Developer Preview 2. If you’re going to sign up, you might want to consider installing Mac OS X Lion on a […]

  8. muffcabbage says:

    Mac OS X Lion Developer Preview 2 – Build 11A419

    No Password, Enjoy!

    Use Split & Concat to join.

  9. Joseph says:

    I’ll have to see if this preview is more stable than the last.

  10. nobrainer says:

    codes are one time use, if something happens (like you didn’t read the disclaimer about how to download the update) – you loose your code

  11. Ian says:

    Sloooow download

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