This is just a quick heads-up for every jailbreaker ! I am warning the entire iPhone community not to update to upcoming iOS 4.3 firmware, it is not jailbreak safe as ASLR will break the mobile substrate (saurik’s extension for SpringBoard), and jailbreak tweaks like winterboard, sbsettings, bitesms, folder enhancer, Five Icon Dock will not work. Wait until a stable jailbreak is out. Unlike other iOS firmwares it is not jailbreak safe.




With iOS 4.3 comes Apple’s Address Space Layout Randomization (ASLR). In short, this will mess up the way mobile substrate works. You need a new mobile substrate in order to use your favorite tweaks such as winterboard, sbsettings, bitesms, folder enhancer, etc. So avoid iOS 4.3 until the Dev Team “official” jailbreak is released for it. Of course we will notify you when it is released.

Make sure, you do not update your device to iOS 4.3 and wait for some time. In addition to it, the iOS 4.3 update seems to accompany ASLR method which randomizes the memory locations, making it difficult for an attacker to predict target addresses. It even makes iOS devices very hard to jailbreak and target vulnerabilities.