title: Should IBOutlet be weak or strong var?
body: <p>I'm using Xcode 6.2 for iOS projects.  In older versions of Xcode, when a connection was create for an IBOutlet, it was always weak storage.  Now when I create connections, they are defaulted to strong.  I leave it that way and don't notice any difference.</p>
  
  <p>Which version of Xcode did the default change to strong and why?</p>