Just like at the wind-down of last year’s WWDC, we’re releasing a developer-only version of a redsn0w tethered jailbreak for app developers.

UNLOCKERS AND THOSE PRESERVING THEIR UNLOCKABLE BASEBANDS SHOULD STAY FAR AWAY FROM THIS!  You will very likely lose your unlockable baseband if you try to install iOS 6.

THIS JAILBREAK IS INTENDED ONLY FOR DEVELOPERS OF JAILBROKEN APPS!  There are just too many broken components (Apple’s official apps, 3rd-party App Store apps, Cydia apps, etc) for this to be useful to anyone but those truly looking to fix bugs in their iOS 6 jailbroken apps.

CYDIA WILL NOT BE INSTALLED because it just hasn’t had time to be updated to the new SDK.  The only access you’ll get to the device is through SSH or afc2.  If you don’t know what either of those are, you shouldn’t be using this developer version of redsn0w!

THIS REDSN0W WILL NOT HACTIVATE!  You need to be an iOS developer with a registered UDID to get past the activation screens.  PLEASE DON’T PIRATE APPLE SOFTWARE!  Only registered devs with Macs can develop iOS applications,and only those people will have legitimate access to the beta IPSWs.

THIS IS A TETHERED JAILBREAK ONLY!  No new exploits are being exposed with this jailbreak (it uses geohot’s limera1n bootrom exploit), but that comes at a cost.  You will need to use redsn0w’s “Just boot” button to be able to use many things, including Safari.  If you see Safari or iBooks crash when you open them, it’s because you didn’t boot tethered.

You must point redsn0w at your IPSW the first time you “Jailbreak” and “Just boot” tethered because that IPSW is only available to developers, and redsn0w can’t automatically fetch the pieces it needs from it.  By the time you’ve done a “Just boot” tethered JB though, redsn0w has cached all the files it needs from the IPSW so you won’t need to point redsn0w at it any longer.

If you’ve already installed rocky-racoon, don’t bother reinstalling it unless you’ve had problems and would like to try a different tool.  The underlying untethered jailbreak (rocky-racoon) is identical to what is already installed by last week’s tools like Absinthe, cinject-0.5.3, and the rocky-racoon Cydia package — only the injection method offered by the above tools differs.

redsn0w allows owners of A4+earlier devices to install rocky-racoon two different ways:

• backup/restore method similar to Absinthe and cinject
• its traditional limera1n-based ramdisk install.  If you have a lot of media on your A4 device (music, movies, TV shows, etc), then the ramdisk method is preferrred because it avoids any possibility of later problems related to syncing to iCloud (including Photo Stream and Music Match).  The ramdisk method is not available for A5 devices or later because limera1n can’t be used.  If you’d like to use redsn0w’s ramdisk method, just be sure to put the A4 device in DFU or Recovery mode before starting redsn0w (otherwise it will immediately start to use the backup/restore method).

We’ve also added a new redsn0w feature specifically for those who got in on the SAM unlock: you can now include your SAM tickets as part of your initial ramdisk jailbreak of iPhone4 or earlier, or alternatively you can upload your SAM tickets to any device after its been jailbroken.  redsn0w accepts either the individual SAM activation ticket plist file, or the entire zip file created by redsn0w’s “Backup” button.  As usual, redsn0w continues to cover all of its previous jailbreaks and untethers (so redsn0w-0.9.12b1 covers everything from 5.1.1 all the way back to 4.1).

PwnageTool also avoids any possible sync issues, but again it applies only to A4+earlier devices.  If you unlock your iPhone with ultrasn0w or a commercial method, you must use PwnageTool to avoid updating your baseband otherwise you’ll lose the unlock.  PwnageTool will also jailbreak+untether the AppleTV2,1 5.0_2B206f (unless you customize the IPSW further, you’ll have just basic SSH access to the device).

If you’d like to contribute to those that actually developed rocky-racoon, please visit here (any other links you may see are not going to the actual rocky-racoon developers, they’re being diverted to other “related” or fraudulent accounts).

Here are the download links.  Please use our comment section below to give feedback.  Enjoy!

Update #1: Starting with version 0.9.12b2, redsn0w will now explicitly ask users with limera1n-able devices whether they want to inject rocky-racoon using the DFU ramdisk method or the backup/restore method (the ramdisk method is better for those with lots of media on their device that would create very large backups, and it’s required for those with unactivated iPhones).  If you’ll always want to use limera1n, you can select that in the Preferences pane.  It also fixes an iBooks issue on old-bootrom 3GS iPhones, and provides more useful error messages when things go wrong.

After copious amounts of work and many sleepless nights Absinthe 2.0 is finally here to jailbreak your device. This release has been a large collaborative effort between Chronic-Dev Team and iPhone Dev Teams (Jailbreak Dream Team)

This jailbreak supports firmware 5.1.1 ONLY and is again one of the most easiest jailbreaks to use (so easy your grandma could do it ;D)

How To Untether 5.1.1 (if you’re already jailbroken):

• Just search for and install “Rocky Racoon 5.1.1 Untether” from Cydia.