Leopard Reference: Cocoa
This page lists new and recently changed documents, including Articles, Guides, Reference, Release Notes, Sample Code, Technical Notes, and Technical Q&As. Most documents have a revision history, which details additions and changes to that document since the previous version. Look for "Revision History" at the bottom of the document or in the document's table of contents.

Items are listed in reverse chronological order by publication date. To see the list sorted by the type of revision, click Sort by Revision Type. Items published for the first time (First Version) will be at the top of the list, followed by items with new or changed content (Content Update), followed by items with small fixes, such as typos and format errors, but no significant content changes (Minor Change).

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Document Revision Descriptions
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2009-05-06 Foundation Constants Reference (HTML) (PDF)
Corrected the definition of NSDecimalNoScale.
 Minor Change
2008-09-09 Foundation Data Types Reference (HTML) (PDF)
Added descriptions for NSInteger and NSUInteger.
 Minor Change
2008-10-15 Foundation Functions Reference (HTML) (PDF)
Corrected discussions of NSMapInsert and NSTemporaryDirectory; clarified behavior of NSPointInRect.
 Minor Change
2008-10-15 NSAtomicStore Class Reference (HTML) (PDF)
Corrected discussion of save: method.
 Minor Change
2008-10-15 NSAttributedString Class Reference (HTML) (PDF)
Added cautionary note about isEqual: comparison of NSAttributedString objects having attributes such as attachments, lists, and tables.
 Minor Change
2009-02-04 NSCalendar Class Reference (HTML) (PDF)
Clarified return value of ordinalityOfUnit:inUnit:forDate:.
 Minor Change
2008-10-15 NSCharacterSet Class Reference (HTML) (PDF)
Corrected typographical error.
 Minor Change
2009-05-06 NSCountedSet Class Reference (HTML) (PDF)
Referenced CFBag, which implements similar functionality.
 Minor Change
2009-05-06 NSData Class Reference (HTML) (PDF)
Added subclassing notes. Clarified behavior of bytes and getData:length: methods.
 Minor Change
2008-10-15 NSDate Class Reference (HTML) (PDF)
Revised documentation of description and descriptionWithLocale: methods.
 Minor Change
2008-10-15 NSDateComponents Class Reference (HTML) (PDF)
Clarified meaning of weekday and weekday ordinal units.
 Minor Change
2008-11-19 NSDateFormatter Class Reference (HTML) (PDF)
Added note about supported behaviors for iPhone OS.
 Minor Change
2009-04-08 NSDictionary Class Reference (HTML) (PDF)
Corrected typographical errors.
 Minor Change
2008-10-15 NSExpression Class Reference (HTML) (PDF)
Corrected SUBQUERY expression example.
 Minor Change
2008-10-15 NSFileWrapper Class Reference (HTML) (PDF)
Corrected -initWithSerializedRepresentation: method description.
 Minor Change
2008-10-15 NSIndexPath Class Reference (HTML) (PDF)
Clarified indexAtPosition: description.
Minor Change
2008-10-15 NSKeyedArchiver Class Reference (HTML) (PDF)
Clarified behavior of encodeObject:forKey: for nil values.
 Minor Change
2008-10-15 NSKeyedUnarchiver Class Reference (HTML) (PDF)
Added notes that keys must not be nil.
 Minor Change
2009-02-04 NSKeyValueCoding Protocol Reference (HTML) (PDF)
Accessor search descriptions of setValue:forKey:, valueForKey:, mutableArrayValueForKey:, and mutableSetValueForKey: now point to the Key-Value Coding Programming Guide.
 Minor Change
2008-10-15 NSManagedObject Class Reference (HTML) (PDF)
Clarified descriptions of primitiveValueForKey: and setPrimitiveValue:forKey:.
 Minor Change
2008-10-15 NSManagedObjectContext Class Reference (HTML) (PDF)
Clarifed return value for countForFetchRequest:error:.
 Minor Change
2008-11-17 NSMutableArray Class Reference (HTML) (PDF)
Noted in overview that predicates are not available on iPhone OS.
 Minor Change
2008-10-15 NSMutableParagraphStyle Class Reference (HTML) (PDF)
Removed erroneous statement that 0 is not accepted by setTighteningFactorForTruncation: method.
 Minor Change
2008-11-19 NSNumberFormatter Class Reference (HTML) (PDF)
Added note about supported behaviors for iPhone OS.
 Minor Change
2009-01-06 NSOutputStream Class Reference (HTML) (PDF)
Miscellaneous edits.
 Minor Change
2009-03-04 NSPointerArray Class Reference (HTML) (PDF)
Clarified behavior in fast enumeration.
 Minor Change
2008-10-15 NSPointerFunctions Class Reference (HTML) (PDF)
Added definition of NSPointerFunctionsOpaqueMemory.
 Minor Change
2008-10-15 NSPredicateEditor Class Reference (HTML) (PDF)
Removed broken link.
Minor Change
2008-10-15 NSScanner Class Reference (HTML) (PDF)
Documented hexadecimal scanning methods introduced in Mac OS X v10.5
 Minor Change
2008-10-15 NSSet Class Reference (HTML) (PDF)
Corrected typographical errors.
 Minor Change
2008-10-15 NSSound Class Reference (HTML) (PDF)
Updated the list of supported sound formats.
 Minor Change
2008-10-15 NSStream Class Reference (HTML) (PDF)
Revised descriptions of NSStreamStatus constants.
 Minor Change
2009-02-04 NSString Application Kit Additions Reference (HTML) (PDF)
Documented NSStringDrawingTruncatesLastVisibleLine constant.
 Minor Change
2009-02-04 NSString Class Reference (HTML) (PDF)
Changed the abstract of getCharacters: to more closely reflect that of getCharacters:range:.
 Minor Change
2009-04-08 NSUserDefaults Class Reference (HTML) (PDF)
Updated property list storage details.
 Minor Change
2009-05-06 Search Kit Reference (HTML) (PDF)
Added notes that SKSearch and SKIndex objects cannot be used with CFMakeCollectable.
 Minor Change