Hi there... not sure if this is the right place to ask this question.
WWDC 2015 introduced some new features for NSCollectionView (I'm guessing they are new). If I update my Application code accordingly and build with the latest SDK (10.11) and I set my deployment target for 10.9 - do I get to use those new features? or will my application break on an earlier version of the operating system?
- David