While this release contains many improvements to profiles, the Web Services (REST) API, and other areas the biggest investments were made into the Wiki and the new question-and-answer functionality in the forums. The Wiki is available as a core "application" and is also integrated into the sub-communities functionality. The question-and-answer functionality streamlines finding answers to questions in the forums - instead of scanning a thread for your answer, you can quickly find the answers highlighted at the top of the thread.