Document Revision History

This table describes the changes to CGGeometry Reference.

Date	Notes
2013-04-23	Removed misleading information about whether minimum/maximum Y values are at the top or bottom of a CGRect.
2010-07-01	Clarified descriptions of CGRect and CGRectUnion.
2010-03-24	Revised the description of CGRectContainsPoint to clarify which points are considered inside the rectangle. Clarified the use of null rectangles as well as rectangles with negative width or height values.
2009-01-06	Updated the descriptions of the CGRectMinYEdge and CGRectMaxYEdge constants to reflect the different coordinate system possibilities.
2008-10-15	Added the definition for the CGFloat data type.
2008-04-08	Made minor technical corrections.
2006-12-22	Updated for OS X v10.5.
	All instances of the `float` data type were changed to the `CGFloat` data type.
	Added `CGPointCreateDictionaryRepresentation`, `CGSizeCreateDictionaryRepresentation`, `CGRectCreateDictionaryRepresentation`, `CGPointMakeWithDictionaryRepresentation`, `CGSizeMakeWithDictionaryRepresentation`, and `CGRectMakeWithDictionaryRepresentation`.
2005-04-29	Updated for OS X v10.4.
	Added the constant `“CGRectInfinite”`.
2004-08-31	Added introductory material.
2004-02-26	First version of this document. An earlier version of this information appeared in Quartz 2D Reference.

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