Notable features Main article: 1.7.2

Notable additions:

11 new biomes
    Mesa, Mega Taiga, Roofed Forest, Birch Forest, Flower Forest, Savanna, Extreme Hills+, Deep Ocean, and snowless Taiga.
        See Biomes
20 new technical biomes
AMPLIFIED world type
7 new commands
New particle effects
6 new achievements
4 new statistics
2 new tree types, wood, planks, slabs, and stairs
    Acacia (Savanna Biome) and Dark Oak (Roofed Forest biome) trees, wood, planks, slabs, and stairs.
    See trees for more info.
3 new fish:
    Salmon, Clownfish, and Pufferfish.
        See fish for more info.
10 new flowers added as decoration and/or more easily retrievable dye ingredients
    Roses removed and replaced with poppy.
    Blue Orchid, Allium, Azure Bluet, Tulips, Oxeye Daisy, Sunflower, Lilac, Rose Bush, and Peony.
    See flowers for more info.
Potion of Water Breathing
    Made by brewing a pufferfish with an awkward potion.
    See fish or Brewing for more info.
Stained Glass and Stained Glass Panes.
    Made using a square of 8 glass around a single dye in the middle.
    See Stained Glass for more info.

Notable changes:

Improvements to existing biomes
Ocean biomes are smaller and take up less of the world
Treasures can be caught by fishing
Achievements and statistics are now per world/server
Fog is less noticeable on lower render distances
Re-added pre-1.6.1 boat controls
Weighted pressure plates are no longer limited to items
Unbreaking from enchantment tables is no longer limited to tools
Hitting a mob with a sword while it is flashing red and inflicting no damage as a result does not decrease the durability of the sword
Witches now spawn outside of Witch Huts
Render Distance and Max Framerate are now sliders
Cave Generation was tweaked, making caves less dense and interconnected.[2]
The server list can now be refreshed by pressing F5
Achievements earned are announced to everyone
When a mob or player takes fall damage, particles appear

Additions General

Splashes

"That's Numberwang!"
"pls rt"
"Do you want to join my server?"
"Put a little fence around it!"
"Throw a blanket over it!"
"One day, somewhere in the future, my work will be quoted!"
"Now with additional stuff!"
"Extra things!"
"Yay, puppies for everyone!"
"So sweet, like a nice bon bon!"
"Popping tags!"
"Now With Multiplayer!"
"Very influential in its circle!"
"Rise from your grave!"
"Warning! A huge battleship "STEVE" is approaching fast!"
"Blue warrior shot the food!"
"Run, coward! I hunger!"
"Flavor with no seasoning!"
"Strange, but not a stranger!"
"Tougher than diamonds, rich like cream!"
"Getting ready to show!"
"Getting ready to know!"
"Getting ready to drop!"
"Getting ready to shock!"
"Getting ready to freak!"
"Getting ready to speak!"
"It swings, it jives!"
"Cruising streets for gold!"
"Take an eggbeater and beat it against a skillet!"
"Make me a table, a funky table!"
"Take the elevator to the mezzanine!"
"Stop being reasonable, this is the Internet!"
"/give @a hugs 64"
"This is good for Realms."
"Any computer is a laptop if you're brave enough!"

Difficulty

Difficulty is stored per world.
    No more global difficulty option.
    Prevents accidentally changing the difficulty when joining a different world.
Can be locked for each world.
    Prevents the temptation to change to an easier difficulty, in difficult situations.
    Locking cannot be undone without using external editors.
    The difficulty can still be changed using the /difficulty command.
Hunger now refills on Peaceful.

Options

New 'Skin Customization' settings.
    Can toggle cape and skin layers from here.
Multiplayer settings
    'Reduced debug info' toggle to enable/disable reduced information on the F3 debug screen.
Video settings
    Alternative Block toggle.
        Can disable/enable (weighted) alternative block models.
            When turned "off", the least complex highest priority model, will always be used for each block.
    Use VBOs toggle
        Can enable/disable "vertex buffer objects".
        May offer a ~10% performance increase when set to "On".

Statistics

stat.crouchOneCm
    Counts how many cm the player has moved while crouching.
stat.sprintOneCm
    Counts how many cm the player has moved while sprinting.
stat.timeSinceDeath
    Counts how much time has passed in ticks, since the player's last death.
stat.talkedToVillager
    Counts how many times the player has opened the GUI of villagers.
stat.tradedWithVillager
    Counts how many times the player has traded with villagers.

Particles

barrier
    Shows up at the location of barrier blocks, for players holding a barrier block item in their hand.
droplet
    Are created when a sponge soaks up water.
mobappearance
    Shows up on one's screen when near an elder guardian.
take

Shaders

New "creeper" shader (creeper.json), applies a green tint.
    Is applied when spectating from the perspective of a creeper.
New "spider" shader (spider.json), applies octuple vision.
    Is applied when spectating from the perspective of a spider.
The newly added shaders can also be applied using the "Super Secret Settings" button.
The previously existing "invert.json" shader is now applied when spectating through the perspective of an enderman.
    It inverts the colors of the environment.

Gameplay

Achievements

New achievement Overpowered.
    Obtained by crafting an enchanted golden apple.
    Requires first obtaining Getting an Upgrade.

Enchantments

New enchantment Depth Strider.
    Allows the player to move faster while in water.
    Can only be applied to boots in survival up to level III.

Spectator game mode

It can only be accessed and reversed via /gamemode, either using spectator, sp, or 3.
It is the default gamemode on the debug world type.