What kind of property should be set to nil in dealloc?

Question

I'm using ARC. Will ARC automatically release all the properties in dealloc? Is it necessary to manual set all public properties and private field to nil? Are there any good pattern to follow?

Answer 1

Under ARC, the pattern is... don't do anything in dealloc, or even implement it. ARC takes care of your properties and instance variables for you.

The only exception is that dealloc is a good place to unregister for notifications, if your object has registered for any.