Changelog:
- Updated MK-1 Parts (old crafts do not work anymore)
- Joined interstage and booster core parts into 1
- Added HotStage Ring variant for booster
- Added HotStageFX
- Added Vapor Cone for ship
- Updated but not up to date plumes
- Added Expendable MK-1
- Added Depot (Streched expendable ship)
- Updated IVA
- Added Donnager MK-2 (SN Ship)
- Added non-essential parts by janus
Probably I missed something.