“API 16 is clearly a minor update. If you look attentively to the API diff documentation, you will notice there has been just a few packages, classes and methods added. However, being a minor update doesn’t mean it is useless. Indeed, what I particularly appreciate about this release is it makes the API more consistent and clearer. Google obviously spent some time making the API more logical and hence easier to understand and use. The list below gives you a set of changes that brings uniformity and clearness to the framework…”

http://android.cyrilmottier.com/?p=746