Apple just released iOS 4.3.4 software update for iPhone 4, iPhone 3GS, iPod touch 4G, iPod touch 3G, iPad 2 and iPad. This new update does not add new features, it just patches the exploit in the easy to use JailbreakMe 3.0 software.
If you are already jailbroken on iOS 4.3.3 then you can simply install PDF Patcher 2 to keep your self safe from the PDF exploit. If you don’t jailbreak your hardware then you can go ahead and upgrade your device to iOS 4.3.4.
Download iOS 4.3.4 Links
§ iOS 4.3.4 download (iPad 2) (WIFI)
§ iOS 4.3.4 download (iPad 2) (GSM)
§ iOS 4.3.4 download (iPhone 4) (GSM)
iOS 4.3.4 Jailbreak Information
The JailbreakMe 3.0 exploit will no longer work on iOS 4.3.4. There is no reason to update to iOS 4.3.4 as it adds no new features, and jailbroken users can easily patch the exploit by installing the PDF Patcher 2 application from Cydia. If you want to keep your jailbreak then don’t update to iOS 4.3.4.