Document Revision History

This table describes the changes to iOS Technology Overview.

DateNotes
2013-09-18Added technologies introduced in iOS 7.
2012-09-19Contains information about new frameworks and technologies introduced in iOS 6.
2011-10-12Added technologies introduced in iOS 5.
2010-11-15Updated the document to reflect new features in iOS 4.1 and iOS 4.2.
2010-07-08Changed the title from "iPhone OS Technology Overview."
2010-06-04Updated to reflect features available in iOS 4.0.
2009-10-19Added links to reference documentation in framework appendix.
2009-05-27Updated for iOS 3.0.
2008-10-15New document that introduces iOS and its technologies.