Deprecation Guide for Ember.immediateObserver

Ember.immediateObserver is deprecated in favor of Ember.observer. Please change all instances of Ember.immediateObserver from:

Ember.Object.extend({
  valueObserver: Ember.immediateObserver('value', function() {
  })
});

to

Ember.Object.extend({
  valueObserver: Ember.observer('value', function() {
  })
});