[kimon]

KVOController 1.0.0 supports observing arrays and other ordered relationships, just not values within. I filed https://github.com/facebook/KVOController/issues/5 to track. Features requests are welcome.

Performing the initial callback manually, avoiding the KVO initiated one, was shown to be a performance improvement under certain KVO configurations.

We've updated the readme to include an example tracking the controller object. An instance variable should all that is necessary: https://github.com/facebook/KVOController.

[icodestuff]

> Performing the initial callback manually, avoiding the KVO initiated one, was shown to be a performance improvement under certain KVO configurations.

Please elaborate. I've been re-implementing KVO, and have not seen this. What configurations?

Also, adding a controller ivar/property is rather invasive, don't you think?