FOSSwire looks at one of the new features: The new codec download feature
read it here
Another addition, and the best in my opinion, is the option to automatically install the required codecs for a video file when you try to play it. You simply click to open the file, and if you do not have the codecs installed, Totem (the movie player) will ask you if you would like them to be installed for you. Click Yes, check a box, and click Install. You now have all of the codecs you need to play movies, including WMV9 (GStreamer only) without the need of the w32codecs package.