Pangu team has released the update, Pangu8 Untethered 0.4 for the jailbroken devices. It is available for users, those who have already jailbroken their idevices with Pangu8, running on iOS 8-8.1. According to the Pangu, this is of update for fix the memory issues of many apps particularly Safari on 32-bit devices (iPhone 5 | 4S, iPad 4G | 3G | 2, iPad Mini 1, iPod 5G). There are no any new things for other 64-bit devices by this update, however we strongly recommend to you whether you are 32-bit or 64 bit device user. You can install this update package via the Cydia app, which installed on your device.If you are not yet jailbreak your device, This is Pangu latest jailbreak for iOS 8-8.1 with Cydia installer

Note : This Pangu 0.4 update only for the jailbroken devices & there is Pangu 1.2.0 update available now for iOS 8 jailbreak..