How can I get the latest update??

There is no hacker! First check to see if your phone is eligible for the update. Some older models are not eligible. If the phone is eligible for update, follow the instructions in this link...

Update your iPhone or iPad - Apple Support

Assuming you have a compatible device, see: Update your iPhone, iPad, or iPod touch - Apple Support

And: If your iPhone, iPad, or iPod touch won't update - Apple Support

If the above Apple articles do not help, please post back with relevant information.