Shader support in the OpenGL output, for colorspace conversion, including 10bits.
Completely reworked Mac and Web interfaces and improvements in the other interfaces make VLC easier than ever to use. It supports many new devices and BluRay Discs (experimental). Twoflower has a new rendering pipeline for video, with higher quality subtitles, and new video filters to enhance your videos.
With faster decoding on multi-core, GPU, and mobile hardware and the ability to open more formats, notably professional, HD and 10bits codecs, 3.0 is a major upgrade for VLC.