The latest iOS update, version 4.3.4, which fixed an exploit that hackers had been using for jailbreaks, has itself been jailbroken mere days after its release.
Dev-Team releases the latest redsn0w untethered jailbreak for Apple's iOS 4.3.2., with versions available for both Mac OS X and Windows. The jailbreak supports all iOS 4.3.2-capable devices with the exception of the iPad 2.