https://isource.com/2010/07/26/things-1-6-for-iphone-ios-4-multitasking-and-task-completion-local-notifications-retina-display-support/ #1 Source for iPad, iPhone, iPod, Mac and AppleTV Fri, 15 Oct 2010 16:46:31 +0000 hourly 1 https://wordpress.org/?v=5.4.6