- Changed the appearance of wide note holds to be more promiment, and they also now curve with cylindrical tracks.
- World Editor - Can copy and paste set pieces with ctrl+c and ctrl+v.
- World Editor - It is now easier to select overlapping set pieces.  Clicking will cycle through all set pieces at the mouse cursor's position.
- Leech items - Leech effects apply every second instead of continuously.  Added a sound and graphic to leech effects.
- Added the wall sounds to game version 2.0 tracks.
- Disabling holds no longer disables lanes.
- Fixed some scoring issues with lanes.
- Do not apply pauses or game speed changes that are authored before the start of the track.  This is hopefully a temporary change that fixes some issues.
- Save a backup progress file on saving to saves\oldprogress.json.