This is version 0.5 of Pangu's iOS 8 Untether.

saurik has "released" this update as a test for task_for_pid(0).

As he said on the Reddit thread, this is not to be installed by the casual user.

DO NOT INSTALL THIS UNLESS YOU FULLY UNDERSTAND WHAT YOU ARE DOING AND HAVE READ SAURIK'S REDDIT THREAD IN FULL!

Supports iOS 8.0 to 8.1