The Minecraft Mounts of Mayhem update will be released on December 9, 2025. The estimated release times for various time zones are as follows: 7:30 AM PST (United States), 9:00 PM IST (India), 12:30 AM JST (Japan, December 10), 11:30 PM CST (China), 10:30 AM EST (Canada), 4:30 PM CET (Italy), 2:30 AM NZST (New Zealand, December 10). The update will introduce new features including underwater mounts, undead mobs, and a new weapon called the Spear. Players can tame the Nautilus mob by feeding it Pufferfish and can equip mounts with Nautilus armor. The update will also feature Camel Husks, the Parched mob, and the Zombie Horse in survival mode. The Spear will not replace swords and axes but will offer additional combat options.