VLC 2.0, known as Twoflower, also brings support for a wide range of file formats, including experimental Blu-ray disc playback (full support expected soon). Other new features include a completely re-worked interfaces for the Mac and web platforms, Mac extensions support, improved Mac OS X 10.7 Lion integration, higher quality subtitles, new video filters, new resamplers for higher quality audio, new dynamic range compressor and karaoke filters, faster audio processing, as well as new video and audio outputs for Windows 7, Android, iOS and OS/2.
Developer features include updated LGPLv2.1+ for libVLC, libVLCcore and libcompat, new JSON requests on the web interface to control running VLC instances, and implementation of the MPRIS2 interface to control media players. VLC's web plugins have also been rewritten for better integration and stability in all browsers.
For a full list of changes, visit VLC 2.0's feature page, which also features the download links for Linux, Mac, and Windows.