Yesterday, Apple released iOS 4.3.4 to fix the security vulnerability that Comex had used in JailbreakMe 3.0, which is one of the easiest solutions to jailbreak an iOS device.
Dev team has provided the following information on their blog:
For the convenience of kernel hackers like @comex and @i0n1c, we have a new redsn0w 0.9.8b3 that supports a TETHERED jailbreak for iOS 4.3.4 on all devices that have 4.3.4 except the iPad2. The vast majority of people will want to stay back at 4.3.3 because that’s where the untethered jailbreak is! There are no new features in 4.3.4 — only fixes for jailbreak exploits.
Also, this is a good time to remind everyone (since we’re still seeing confusion about this): iPad2 owners with a baseband (3G or CDMA) cannot currently use saved blobs to go back to 4.3.3 once the signing window is closed. This is unlike every other device, so don’t be confused! iPad2 owners with basebands should stay away from all updates to maintain the jailbreak!
Redsn0w 0.9.8b3 supports the following iOS 4.3.4 devices:
iPhone 4 (GSM)
Redsn0w 0.9.8b3 supports only a tethered jailbreak, which means that you need to connect your iOS device to the computer on every reboot.
So Dev team has advised users to avoid upgrading to iOS 4.3.4 if they want a untethered jailbreak and take a backup of SHSH blobs using TinyUmbrella for iOS 4.3.3 so that one can downgrade their iOS device if required. Apple still seems to be signing iOS 4.3.3 firmware file at the time of writing this post.
As always, let us know how it goes.
[via Dev Team’s blog]