I have a number of controls with custom bindings that are programmatically 
added to a view hierarchy in a window. Calling –unbind: on these controls when 
the window is closes is a challenge.

But it actually does not seem to matter. If –unbind: is never called and the 
window is closed there are no memory leaks reported in Instruments.

Apple has an undocumented class NSAutounbinder which apparently addresses a 
problem with retain cycles when binding to File's Owner from a nib file. 
However I am binding programmatically not inside a nib file. But perhaps 
NSAutounbinder is somehow working in my behalf.

Is unbinding my programmatic bindings when the window closes something that I 
should worry about? 

--Richard


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