Reference
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).

New and updated Reference Library documents are announced in the bi-weekly Apple Developer Connection News, available as an option to ADC members. See the Membership Overview page for details on joining.
Document Revision Descriptions
On Off
Sorted by
Date 		Sort by
Title 		Sort by
Revision Type 		Sort by
Topic
2008-06-19 Web Kit Constants Reference (HTML) (PDF)
Updated for Mac OS X v10.5.
 Minor Change User Experience
2008-06-19 WebBackForwardList Class Reference (HTML) (PDF)
Updated for Mac OS X v10.5.
 Minor Change User Experience
2008-06-19 WebFrame Class Reference (HTML) (PDF)
Updated for Mac OS X v10.5.
 Minor Change User Experience
2008-06-19 WebFrameLoadDelegate Protocol Reference (HTML) (PDF)
Updated for Mac OS X v10.5.
 Minor Change User Experience
2008-06-19 WebFrameView Class Reference (HTML) (PDF)
Updated for Mac OS X v10.5.
 Minor Change User Experience
2008-06-19 WebPreferences Class Reference (HTML) (PDF)
Updated for Mac OS X v10.5.
 Minor Change User Experience
2008-06-19 WebResourceLoadDelegate Protocol Reference (HTML) (PDF)
Updated for Mac OS X v10.5.
 Minor Change User Experience
2008-06-19 WebScripting Protocol Reference (HTML) (PDF)
Updated per Mac OS X v10.5.
 Minor Change User Experience
2008-06-19 WebScriptObject Class Reference (HTML) (PDF)
Updated for Mac OS X v10.5.
 Minor Change User Experience
2008-06-19 WebUIDelegate Protocol Reference (HTML) (PDF)
Updated for Mac OS X v10.5.
 Minor Change User Experience
2008-06-19 WebView Class Reference (HTML) (PDF)
Updated for Mac OS X v10.5.
 Minor Change User Experience
2008-06-09 Core Image Kernel Language Reference (HTML) (PDF)
Updated for Mac OS X v10.5.
 Content Update Graphics & Imaging
2008-06-09 NSArray Class Reference (HTML) (PDF)
Made minor changes to the class overview to improve clarity.
 Minor Change Data Management
2008-06-09 NSCalendar Class Reference (HTML) (PDF)
Removed reference to NSCalendarDate, which is slated for deprecation. Added explanation of weekday ordinal unit.
 Minor Change Data Management, Internationalization
2008-06-09 NSDate Class Reference (HTML) (PDF)
Added a warning to methods related to NSCalendarDate that it is slated for deprecation.
 Minor Change Data Management
2008-06-09 NSDatePicker Class Reference (HTML) (PDF)
Added a reference to NSDatePickerCell in the delegate and setDelegate: methods.
 Minor Change User Experience
2008-06-09 NSDatePickerCell Class Reference (HTML) (PDF)
Added information concerning support for time intervals.
 Minor Change User Experience
2008-06-09 NSGarbageCollector Class Reference (HTML) (PDF)
Updated discussion of disableCollectorForPointer:.
 Minor Change Objective-C Language
2008-06-09 NSObject Class Reference (HTML) (PDF)
Updated sample code in +resolveInstanceMethod: to properly call super.
 Minor Change Design Guidelines, Objective-C Language
2008-06-09 NSOpenGLContext Class Reference (HTML) (PDF)
Corrected description of NSOpenGLCPSwapInterval.
 Minor Change Graphics & Imaging
2008-06-09 NSPropertyListSerialization Class Reference (HTML) (PDF)
Updated dataFromPropertyList: and propertyListFromData: to remove note about Mac OS X v10.5 behavior.
 Minor Change Data Management
2008-05-06 NSText Class Reference (HTML) (PDF)
Added a note explaining why NSTextDidEndEditingNotification may be sent without a matching NSTextDidBeginEditingNotification.
 Minor Change Text & Fonts
2008-05-04 NSCalendarDate Class Reference (HTML) (PDF)
Added note that use is discouraged.
 Minor Change Data Management
2008-04-30 CARenderer Class Reference (HTML) (PDF)
Corrected description in the Overview.
 Minor Change Graphics & Imaging
2008-04-08 Disc Recording Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Audio, File Management
2008-04-08 Disc Recording UI Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Audio, File Management, User Experience
2008-04-08 IKImageView Class Reference (HTML) (PDF)
Added information to the delegate property.
 Minor Change Graphics & Imaging
2008-04-08 Message Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Apple Applications
2008-04-08 Publication Subscription Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Internet & Web
2008-04-08 QCCompositionRenderer Protocol Reference (HTML) (PDF)
Fixed minor typographical error.
 Minor Change Graphics & Imaging
2008-04-08 QCPlugIn Class Reference (HTML) (PDF)
Added information about the memory management model used for the create function.
 Minor Change Graphics & Imaging
2008-03-11 CAAnimationGroup Class Reference (HTML) (PDF)
Clarified that the animations grouped within a CAAnimationGroup do not get delegate messages, but that the group does.
 Content Update Graphics & Imaging
2008-03-11 CAOpenGLLayer Class Reference (HTML) (PDF)
Clarified that copyCGLPixelFormatForDisplayMask:, copyCGLContextForPixelFormat:, releaseCGLContext:, and releaseCGLPixelFormat: should only be implemented, never called.
 Minor Change Graphics & Imaging
2008-03-11 Foundation Data Types Reference (HTML) (PDF)
Updated float to CGFloat where appropriate.
 Minor Change Data Management, Objective-C Language
2008-03-11 NSDocument Class Reference (HTML) (PDF)
Revised descriptions of saveDocumentWithDelegate:didSaveSelector:contextInfo: and isDocumentEdited methods. Added descriptions (previously removed) of deprecated methods no longer appearing in header file.
 Minor Change Design Guidelines
2008-03-11 NSDocumentController Class Reference (HTML) (PDF)
Removed false statement that reviewUnsavedDocumentsWithAlertTitle:cancellable:delegate:didReviewAllSelector:contextInfo: can ever return NO for cancellable.
 Minor Change Design Guidelines
2008-03-11 NSFontDescriptor Class Reference (HTML) (PDF)
Added description of NSFontFamilyClassMask constant.
 Minor Change Objective-C Language
2008-03-11 NSMethodSignature Class Reference (HTML) (PDF)
Added a live link to a cross-reference in the Overview section.
 Minor Change Objective-C Language
2008-03-11 NSPersistentStoreCoordinator Class Reference (HTML) (PDF)
Corrected minor typographical errors.
 Minor Change Data Management
2008-03-11 NSPrintInfo Class Reference (HTML) (PDF)
Made minor technical corrections.
 Minor Change Printing
2008-03-11 NSProgressIndicator Class Reference (HTML) (PDF)
Corrected typos.
 Minor Change User Experience
2008-03-11 NSSearchFieldCell Class Reference (HTML) (PDF)
Disambiguated the descriptions of the methods setSendsSearchStringImmediately: and setSendsWholeSearchString:.
 Minor Change User Experience
2008-03-11 NSSet Class Reference (HTML) (PDF)
Added NSFastEnumeration to list of adopted protocols.
 Minor Change Data Management
2008-03-11 NSString Class Reference (HTML) (PDF)
Added paragraph to introduction describing the byte-order assumptions of factory and initialization methods taking UTF-16 input.
 Minor Change Data Management
2008-03-11 NSURLCache Class Reference (HTML) (PDF)
Updated discussion for the -sharedURLCache method.
 Minor Change Internet & Web, Networking
2008-03-11 NSView Class Reference (HTML) (PDF)
Corrected information about the isOpaque method that's found in the discussion of the drawRect: method.
 Minor Change Events & Other Input, Graphics & Imaging, Printing
2008-03-10 CALayer Class Reference (HTML) (PDF)
Corrected method signature for removeAnimationForKey:.
 Minor Change Graphics & Imaging
2008-02-08 Application Kit Functions Reference (HTML) (PDF)
Updated thread safety information for the NSApplicationMain function.
 Minor Change Objective-C Language
2008-02-08 Foundation Functions Reference (HTML) (PDF)
Corrected minor typographical errors.
 Minor Change Data Management
2008-02-08 NSAnimationContext Class Reference (HTML) (PDF)
Corrected typos.
 Minor Change Graphics & Imaging
2008-02-08 NSAutoreleasePool Class Reference (HTML) (PDF)
Corrected typographical errors.
Minor Change Objective-C Language, Performance
2008-02-08 NSConnection Class Reference (HTML) (PDF)
Updated information for the enableMultipleThreads method.
 Minor Change Interapplication Communication
2008-02-08 NSCursor Class Reference (HTML) (PDF)
Clarified the function of the currentCursor method.
 Minor Change User Experience
2008-02-08 NSData Class Reference (HTML) (PDF)
Corrected typographical errors.
Minor Change Data Management
2008-02-08 NSDictionary Class Reference (HTML) (PDF)
Corrected typographical errors.
 Minor Change Data Management, Design Guidelines
2008-02-08 NSEntityDescription Class Reference (HTML) (PDF)
Updated the discussion of the method insertNewObjectForEntityForName:inManagedObjectContext: for Mac OS X v10.5.
 Minor Change Objective-C Language
2008-02-08 NSExpression Class Reference (HTML) (PDF)
Corrected errors in the table describing the expressionForFunction:arguments: method.
 Minor Change Data Management
2008-02-08 NSFetchRequest Class Reference (HTML) (PDF)
Corrected the discussion of the resultType method.
 Minor Change Data Management
2008-02-08 NSLocale Class Reference (HTML) (PDF)
Enhanced the description of the NSLocaleMeasurementSystem constant.
 Minor Change Internationalization, User Experience
2008-02-08 NSLock Class Reference (HTML) (PDF)
Added a warning describing what happens when you unlock a lock that is not currently locked.
 Minor Change Process Management
2008-02-08 NSMenu Class Reference (HTML) (PDF)
Corrected parameter descriptions for popUpContextMenu:withEvent:forView:withFont:.
 Minor Change User Experience
2008-02-08 NSMenuItem Class Reference (HTML) (PDF)
Corrected the discussion for setKeyEquivalentModifierMask:.
 Minor Change User Experience
2008-02-08 NSNetService Class Reference (HTML) (PDF)
Corrected typographical errors.
 Minor Change Interapplication Communication, Internet & Web, Networking
2008-02-08 NSNumber Class Reference (HTML) (PDF)
Clarified the restricted return values that the (NSValue) objCType method returns.
Minor Change Data Management
2008-02-08 NSPasteboard Class Reference (HTML) (PDF)
Enhanced discussions of color and URL pasteboard types.
 Minor Change Interapplication Communication
2008-02-08 NSPersistentDocument Class Reference (HTML) (PDF)
Corrected a minor link error.
Minor Change Data Management, Design Guidelines
2008-02-08 NSRuleEditor Class Reference (HTML) (PDF)
Removed a broken link.
 Minor Change User Experience
2008-02-08 NSRunLoop Class Reference (HTML) (PDF)
Updated the description of the runMode:beforeDate: method.
 Minor Change Events & Other Input, Performance
2008-02-08 NSTimeZone Class Reference (HTML) (PDF)
Enhanced the discussions of the methods systemTimeZone and resetSystemTimeZone.
 Minor Change Data Management, Internationalization
2008-01-15 Web Kit DOM Reference (HTML)
Fixed missing content.
 Minor Change Internet & Web
2007-12-11 CAConstraintLayoutManager Class Reference (HTML) (PDF)
Corrected typos.
 Minor Change Graphics & Imaging
2007-12-11 CATextLayer Class Reference (HTML) (PDF)
Added description of the sub-pixel antialiasing limitations of CATextLayer rendering.
 Minor Change Graphics & Imaging
2007-12-11 CIFilter Class Reference (HTML) (PDF)
Added a filter category and updated filter attribute constants.
 Minor Change Graphics & Imaging
2007-12-11 NSAccessibility Protocol Reference (HTML) (PDF)
Corrected descriptions of several constants.
 Minor Change Accessibility
2007-12-11 NSButtonCell Class Reference (HTML) (PDF)
Noted that the API uses "switch" to describe a checkbox.
 Minor Change Events & Other Input, User Experience
2007-12-11 NSCollectionView Class Reference (HTML) (PDF)
Corrected typos.
 Minor Change User Experience
2007-12-11 NSFileManager Class Reference (HTML) (PDF)
Corrected minor errors.
 Minor Change File Management, Resource Management
2007-12-11 NSObjectController Class Reference (HTML) (PDF)
Updated newObject description with more memory information. Added exception warning to setUsesLazyFetching:.
 Minor Change Data Management, Design Guidelines
2007-12-11 NSThread Class Reference (HTML) (PDF)
Corrected some erroneous method descriptions and updated the class discussion.
 Minor Change Process Management
2007-12-11 NSURLResponse Class Reference (HTML) (PDF)
Added documentation for the NSURLResponseUnknownLength macro.
 Minor Change Internet & Web, Networking, Objective-C Language
2007-12-11 NSUserDefaults Class Reference (HTML) (PDF)
Corrected discussion of notification posting behavior.
 Minor Change Data Management, User Experience
2007-12-11 Objective-C 2.0 Runtime Reference (HTML) (PDF)
Enhanced description of object_getIndexedIvars.
 Minor Change Objective-C Language
2007-12-11 PDEPanel Protocol Reference (HTML) (PDF)
A new document that describes the informal protocol used to implement custom panes in a printing dialog.
 First Version Printing
2007-12-11 PDEPlugIn Protocol Reference (HTML) (PDF)
A new document that describes the informal protocol used to add custom panes to a printing dialog.
 First Version Printing
2007-12-11 PDEPlugInCallbackProtocol Reference (HTML) (PDF)
A new document that describes the informal protocol used to access information about the current print job.
 First Version Printing
2007-12-11 PDF Kit Reference Collection (HTML) (PDF)
Updated to include information on new classes and methods introduced in Mac OS X v10.5.
 Minor Change Graphics & Imaging
2007-12-11 PDFAction Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFActionGoTo Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFActionNamed Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFActionRemoteGoTo Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFActionResetForm Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFActionURL Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFAnnotation Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFAnnotationButtonWidget Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFAnnotationChoiceWidget Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFAnnotationFreeText Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFAnnotationLine Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFAnnotationPopup Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFAnnotationStamp Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFAnnotationText Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFAnnotationTextWidget Class Reference (HTML) (PDF)
Added information on the relationship of text widgets with the same field name.
 Minor Change Graphics & Imaging
2007-12-11 PDFDestination Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFDocument Class Reference (HTML) (PDF)
Added more information about attribute data types, and added information about how PDF viewing applications determine document size.
 Minor Change Graphics & Imaging
2007-12-11 PDFOutline Class Reference (HTML) (PDF)
Added information about the retain status of PDFOutline child objects.
 Minor Change Graphics & Imaging
2007-12-11 PDFPage Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-11 PDFThumbnailView Class Reference (HTML) (PDF)
Made minor corrections.
 Minor Change Graphics & Imaging
2007-12-04 NSAttributedString Application Kit Additions Reference (HTML) (PDF)
Enhanced descriptions of NSStrokeWidthAttributeName, NSKernAttributeName, and other standard attribute constants.
 Minor Change Data Management, Text & Fonts