iOS 6.1.2 was launched last evening by Apple, and a few hours after it was also launched evasion 0 which allows us to do untethered jailbreak for all iDevices that have iOS 6.1.2 installed. evasion 0 it does not contain any other news apart from compatibility with iOS 6.1.2, so don't expect anything else because you won't get it. evasi0n do untethered jailbreak only on terminals that have been activated in advance, other limits not being imposed by the program. If you have an iPhone 3GS or an iPhone 4 that needs to be hacked, then you have to wait a few more days until the package evasi0n 6.0-6.1 Untether from Cydia will be updated and recognize this version of iOS.
To make jailbreak on iOS 6.1.2 you must follow this tutorial, exactly as everything is described there, the steps being the same for any version of iOS 6.x. After jailbreak you will be able to use Cydia no problems and that's what the whole process boils down to. You can download evasi0n 1.4 from here: Windows, Mac OS X, Linux.
