You should probably get that iOS 11.1 update…

And for two major reasons:

1] A fix for the KRACK vulnerability you may nor may not have heard about.
2] 70 new emojis:)

While those 2 should probably be enough for most people to upgrade, there are a number of other fixes too, both for security and functionality of your device, including possible fixes for battery life.

As always: MAKE SURE YOU BACK-UP YOUR DEVICE BEFORE YOU UPDATE IT!

Updating is easy, just click Settings/Software Update

Did we mention you need to back-up before you update?