是。

3.0上有一个已知的漏洞的MKMapViews。解除分配MKMapView时会发生泄漏。这在以后的版本中已得到修复。解决方法是使用单个MKMapView并重复使用它。

There is a known leaks on 3.0's MKMapViews. The leak occurs when you deallocate the MKMapView This is fixed in later releases. The workaround is to have a single MKMapView and reuse it.

https://devforums.apple .com / message / 129740＃129740