# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2012-03-29 06:21:38 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/185250345037987840) RT @romainbriche: Automatic removal of NSNotificationCenter or KVO observers by @merowing_ http://t.co/zzXxhflO via @rwenderlich