From SuperCollider wiki
SuperCollider v3.2 was released in February 2008.
Some of the new things in 3.2 were:
- New suite of machine listening ugens: Loudness, BeatTrack, Onsets, KeyTrack, SpecCentroid, SpecPcile, SpecFlatness
- Improvements to the Quarks system
- "Advanced find" in Mac interface
For more details see the 3.2 ChangeLog