Apple on Tuesday updated its Apple Store app for iOS, adding an ability to send notifications to users when they are eligible for upgrade pricing on a new iPhone through their carrier. The new version (2.6, free) also adds notification support for changes in orders, such as shipping or delivery notices. Previously, the program was able to track a user’s order but only when the app was actually in use. Users can now opt for push notifications, as well as schedule Genius, One to One or Specialist appointments, order products for pickup or use EasyPay to buy accessories….