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Document Revision History

This table describes the changes to Outline View Programming Topics for Cocoa.

Date	Notes
2006-06-28	Clarified memory management for data source.
2006-05-23	Added information to the section "About Outline Views."
	Noted that Option-clicking an item’s disclosure triangle expands or collapses all of its contained items, and that an outline view can remember the expanded or collapsed state of contained items that were previously shown.
	Noted that `NSOutlineView` requires that each item in the outline view be unique.
	Corrected minor typos.
2004-12-02	Changed the title of the article "Using an Outline View Data Source" to "Writing an Outline View Data Source."
2004-08-31	Enhanced description of data source requirements and implementation in “Writing an Outline View Data Source.”
2002-11-12	Revision history was added to existing topic. It will be used to record changes to the content of the topic.

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