If the value of the NSKeyValueChangeKindKey entry is NSKeyValueChangeSetting, and NSKeyValueObservingOptionNew was specified when the observer was registered, the value of this key is the new value for the attribute.
For NSKeyValueChangeInsertion or NSKeyValueChangeReplacement, if NSKeyValueObservingOptionNew was specified when the observer was registered, the value for this key is an NSArray instance that contains the objects that have been inserted or replaced other objects, respectively.
Available in Mac OS X v10.3 and later.


- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)