Just found this news on reddit.
An unknown Chinese group released a tool to jailbreak your iDevice with iOS 7.1 - 7.1.x.

This jailbreak is untethered and safe to do!

It was confirmed by iH8sn0w but it also installs a piracy repo and AppSync.

You can download the tool here for Windows:
1.0.0 Download Link
Mirror Download Link

How to jailbreak:
1.) Download and run the windows application.
2.) Go to your iDevice settings and set as date the 2nd June 2014 / 02.06.2014
3.) A new app should pop-up on your iDevice, click on it and wait 30 sec.
4.) Your device will reboot, unlock it and wait 15 sec
5.) If all goes right you will now see





I tried it with my iPhone6,2 , looks like the evasi0n jailbreak.
But it was not successful installed yet, only got a bluescreen after restarting it.


After a second re-run it worked.


There is no new repo added and no AppSync installed.
Only this was installed:

1.129 E-Mails ! Nice

Ooooooo Frosty xD I Was Gonna Post A pangu Untethered IOS Jailbreak Soon :P My phone Is jailbroken. Only If I Had Spare Time :3 But Cool Post Tho