1.20 Adventure Update

After the update about the Nether and the End was added. A new update that will feature new ores, new hostile mobs, new aquatic mobs, and new weapons will come to Minecraft in Aug 23, 2023.
==Mobs:==
===Hostile Mobs:===
*Cyclops
*Troll
*Ogre
*Goblin
*Ghoul
*Sand Worm
*Tarantula
*Orc
*Undead Boar
*Wolfman
*Blood Bug
===Aquatic Mobs:===
*Crab (neutral)
*Lobster (neutral)
*Seahorse
*Jellyfish
*Octopus
*Manta Ray
*Seal
*Otter
*Seagull
*Eel (neutral)
*Orca (neutral)
*Anglerfish (neutral)
*Piranha (neutral)
*Whale
===Hostile Aquatic Mobs:===
*Ghost Fish
*Chomping Fish
*Undead Pirate
*Haunted Crab
*Swamp Fish Man
*Lobster Spirit 
*Sea Lurker
*Undead Fish
*Skeleton Pirate
==Ores, Blocks, and Items==
===Ores:===
*Ruby Ore
*Sapphire Ore
*Amethyst Ore
*Citrine Ore
*Jasper Ore for the Nether
*Moonstone Ore for the End
*Sunstone Ore for the Nether
*Rose Quartz Ore
*Silver Ore
*Platinum Ore
*Onyx Ore for the End
*Peridot Ore
*Aquamarine Ore
*Sulfur Ore
*Radium Ore
*Copper Ore
*Clam and Pearl
*Labradorite Ore
*Ammolite Ore
*Tiger's Eye Ore
*Larimar Ore
*Amber Ore
===Blocks:===
*Block of Ruby
*Block of Sapphire
*Block of Amethyst
*Block of Citrine
*Block of Jasper
*Block of Moonstone
*Block of Sunstone
*Block of Rose Quartz
*Block of Silver
*Block of Platinum
*Block of Onyx
*Block of Peridot
*Block of Aquamarine
*Sulfur Block
*Radium Block
*Block of Copper
*Block of Pearl
*Block of Labradorite 
*Block of Ammolite
*Block of Tiger's Eye
*Block of Larimar
*Block of Amber
*Mable
*Limestone
*Granite Bricks
*Andesite Bricks
*Diorite Bricks
*Mable Bricks
*Limestone Bricks
*Snowflake Obsidian
===Items:===
*Ruby
*Sapphire
*Amethyst
*Citrine
*Jasper
*Moonstone
*Sunstone
*Rose Quartz
*Silver Ingot
*Platinum Ingot
*Onyx
*Peridot
*Aquamarine
*Sulfur 
*Radium Ingot
*Copper Ingot
*Pearl
*Labradorite
*Ammolite
*Tiger's Eye
*Larimar
*Amber
*Emerald Armor and Tools
*Ruby Armor and Tools
*Sapphire Armor and Tools
*Raw Crab
*Cooked Crab
*Raw Lobster
*Cooked Lobster
*Crab Shell
*Crab Shell Helmet
*Lobster Claw
*Anglerfish Tooth
*Bucket with Crab
*Bucket with Lobster
*Bucket with Seahorse
*Bucket with Jellyfish
*Bucket with Anglerfish
*Bucket with Piranha
===Spawner Eggs (Creative Mode only)===
*Cyclops Spawner Egg
*Troll Spawner Egg
*Ogre Spawner Egg
*Goblin Spawner Egg
*Ghoul Spawner Egg
*Sand Worm Spawner Egg
*Tarantula Spawner Egg
*Orc Spawner Egg
*Undead Boar Spawner Egg
*Wolfman Spawner Egg
*Blood Bug Spawner Egg
*Crab Spawner Egg
*Lobster Spawner Egg
*Seahorse Spawner Egg
*Jellyfish Spawner Egg
*Octopus Spawner Egg
*Manta Ray Spawner Egg
*Seal Spawner Egg
*Otter Spawner Egg
*Seagull Spawner Egg
*Eel Spawner Egg
*Orca Spawner Egg
*Anglerfish Spawner Egg
*Piranha Spawner Egg
*Whale Spawner Egg
*Ghost Fish Spawner Egg
*Chomping Fish Spawner Egg
*Undead Pirate Spawner Egg
*Haunted Crab Spawner Egg
*Swamp Fish Man Spawner Egg
*Lobster Spirit Spawner Egg
*Sea Lurker Spawner Egg
*Undead Fish Spawner Egg
*Skeleton Pirate Spawner Egg
==Mobs that spawn in different types of biomes:==
Any Biome when Nighttime: Cyclops, trolls, goblins, ghouls, tarantulas, wolfmen, and undead boars.
Swamp Biomes: Otters, piranhas, ogres, swamp fish men, orcs, and blood bugs.
Desert Biomes: Sand worms, ghouls, tarantulas, goblins, and trolls
Caves: Trolls, goblins, ghouls, tarantulas, and orcs.
Ocean Biomes: Crabs, lobsters, jellyfish, octopuses, seals, orcas, whales, undead fish, undead pirates, and skeleton pirates.
Coral Reef Biomes: Crabs, lobsters, jellyfish, seahorses, octopuses, eels, manta rays, chomping fish, and undead fish.
Deep Sea Biomes: Anglerfish, ghost fish, haunted crabs, lobster spirits, and sea lurkers.
==Ores that can be found if different biomes:==
Common Ores: Sulfur ores, radium ores, and copper ores.
Less-common Ores: Amethyst ores, citrine ores, clams with pearls, and amber ores.
Semi-rare Ores: Peridot ores, aquamarine ores, larimar ores, tiger's eye ores, and silver ores.
Rare Ores: Ruby ores, sapphire ores, platinum ores, labradorite ores, ammolite ores, rose quartz ores.
Nether Ores: Jasper ores and sunstone ores.
End Ores: Moonstone ores and onyx ores.