Minecraft 1.18: The Travel update.

Minecraft 1.18, Better known as the travel update, Is a major update announced by Mojang on 30th of September 2021 and was released on March 3 2022.
Mobs
Swamp person: Has a secret passion for farming
Toucan
Frog
Camel
Gorser: a creature like a mummy.
Seal
Penguin: A cute creature that lives in snowy plains and icy mountains.
Crocodile: Lives in swamps and rainforests.
Biomes
Red Desert
Bush
Rainforest
Mud cliffs: you can find fossils in here quite easily.
Icy Mountains
Superflat
Rocky Beach
Bigger beach
Nether cliffs
Blocks
Mud
Dried Mud
Seaweed Block
Palm tree logs 
Rock
Black rock
Coconut
Palm leaves
Maroon wool
Maroon concrete
Maroon Stained glass
Maroon terracotta
Tan wool
Tan concrete
Tan stained glass
Tan terracotta
Concrete slabs, Stairs And Walls
Items and tools
Machete
Maroon dye
Tan dye
Coconut Half
Bush
Small bush
Leafy bush
Penguin egg
Seaweed
Camel milk
Pebble
Frogs leg
Whip
Toast: Restores 6 hunger
Basket
Structures 
Mushroom hideout
Red desert temple
Ancient tomb
Swamp home
Advancements
You upset the apple cart! (Upset a crocodile.)
Home sweet home. (Visit a swamp home.)
Tomb raider! (Take from an ancient tomb.)
Gotta hurt. (Use a whip.)
Potions
Potion of nausea (Mundane potion and glow stone dust.)
Enchantments
Sprint I II & III (Used on boots to make you faster.)
Upgrade I, II, III, IV & V (Used on anything to make it the same as another tool e.g use Upgrade II On an iron pick, it becomes the same as a diamond pick.)
1.18.1
Adds new mobs, only available in creative mode and commands
1.18.2
New biomes and structures can generate in new chunks along with a few new blocks
1.18.3
New mobs spawn naturally and new items can be obtained in survival
1.18.4
All blocks can be obtained in survival mode