What will happen to my apps?

I have the iphone 5 and I know that ios 7 comes out today. I've read here and there that not all apps are supported by it. What happens if I update it and they all aren't supported? Will they still work just be different? I really want to update to ios 7. I've had a couple apps that have been updated to support it. Anyone know anything?

I read that all apps will supported on IOS 7

Your apps will die and the app police will come to your house and charge you with app-slaughter.

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