Minecraft's latest update, version 1.21.130, titled "Mounts of Mayhem," introduces several new features, including:
- New mounts: Horses, Zombie Horses, Donkeys, Mules, and Camels now float when ridden while swimming.
- Netherite Horse Armor: Craftable at a Smithing Table using Diamond Horse Armor, a Netherite Ingot, and a Netherite Upgrade, providing 19 armor points.
- Nautilus: A new neutral aquatic mob that can be tamed with Pufferfish, spawns in all ocean biomes, and grants the "Breath of the Nautilus" effect when mounted.
- Nautilus Armor: Equipable on both Nautilus and Zombie Nautilus, available in Copper, Golden, Iron, Diamond, and Netherite versions.
- Zombie Nautilus: A neutral underwater mob that attacks with a Dash attack and can be tamed using Pufferfish.
- Coral Zombie Nautilus: A variant of the Zombie Nautilus that spawns in Warm Oceans.
- Spear: A new weapon crafted from various materials, featuring two attack types: Jab and Charge.
- New mobs: Zombie Horse, which spawns naturally at night in Plains and Savanna biomes, and Parched, a Skeleton variant that spawns in Deserts.
- Camel Husk: An undead Camel variant that spawns in Deserts.
- Various audio adjustments, block generation fixes, and gameplay enhancements, along with numerous bug fixes for improved stability and performance.