According to Apple: This bug is mostly affecting older iOS devices, here is the full list below:
>> iPhone 4S,
>> iPhone 5, 5C, and 5S
>> iPad 2, 3 and 4
>> iPad Air.
>> iPad Mini and Mini 2, and
>> 5th Gen iPod Touch
If your device is already affected, Apple advise that you try to reset your password or disable the Activation Lock feature at iCloud.com. You can also connect the affected device to a computer using iTunes. The company is seriously working on a fix for this bugs so just wait before you update.
Have you Updated already? what other bugs do you notice? use the comment box below.