Today we see another update for Pangu untether to 0.4.
Change Log
Version 0.4 of this package fixes the issue where, on 32-bit devices (iPod 5, iPhone 4S/5, iPad 2/3/4, iPad Mini 1), applications (particuarly Safari) would randomly crash while being used.

They are also saying if you jailbroke your device then restored from backup you need to reinstall Cydia before you apply this update.