- The height increased from 50.3m to 52.1m (165ft to 171ft)
- Completely redesigned forward flaps for better re-entry heating
- Streamlined Thermal Protection System (TPS)
- Streamlined piping, structural supports, and many other things that help with weight reduction
- Extended propellant tanks, allowing for longer burns
- New Payload bay section, while shorter, allows for more Starlinks to fit (+- 50) compared to older Block 1 Starships
- Carries 10 Starlink V3 Simulators, roughly 20-25 tons in weight
- A non-structural version of Chopsticks catching pins, their main use on this flight  for re-entry heating data

- The "Cowbell" vent covers were removed
- Added a ring of vertical stringers beneath the common dome section