User level notes are in Wiki here; http://wiki.blender.org/bin/view.pl/Blenderdev/Softbodies And will be added in blender3d.org CMS later. Tech level notes are still pending, but here's the most relevant ones; - made ob->soft struct SoftBody to hold all settings, and read/save in files - added (temporal!) conversion for the old settings. So: read old files with softbody experiments now, and save over! - cleaned API calls for softbody, which are only 5 of them now: sbNew() sbFree() sbObjectStep() (animation steps) sbObjectToSoftbody() (full re-initialize data) sbObjectReset() (only reset motion) - API calls accepts time in frames now, within softbody.c it converts Further, internally code was cleaned some (missing tabs etc). Also tried to keep a well defined structure with hints how to add support for more objects. Can write notes about that...