With a new audio core, hardware decoding and encoding, port to mobile platforms, preparation for Ultra-HD video and a special care to support more formats, 2.1 is a major upgrade for VLC. The popular video player app also features support for 4K video as well as a partial Windows 8 and WinRT port for all those folks out there who don't know what else to do with their Surface RT."

http://news.slashdot.org/story/13/09...vlc-reaches-21