Update to Minecraft 1.21.4
Minecarts
- Powered rails are crafted with copper instead of gold
- Superpowered rails are crafted with gold and increase minecart top speed to 20m/s
- Crafting regular rails gives 24, crafting powered and superpowered rails gives 12
- Directional rails are powered rails which only boost minecarts in one direction
- Minecarts approaching directional rails in the wrong direction are reversed
- Minecarts can start from a standstill on directional rails with no block behind them
- The minecart improvements datapack is forcibly enabled
Boats
- All ice melts in the nether
- This restricts boat highways to the overworld